Relevant bibliographies by topics / Alkynes

Academic literature on the topic 'Alkynes'

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Published: 4 June 2021
Last updated: 31 July 2024

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Journal articles on the topic "Alkynes"

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Sewald, Norbert, and Klaus Burger. "α-Trifluormethylsubstituierte α-Hydroxysäuren mit Alkinfunktionen in der Seitenkette / α-Trifluoromethyl Substituted α-Hydroxy Acids with Alkyne Functions in the Side Chain." Zeitschrift für Naturforschung B 45, no. 6 (June 1, 1990): 871–75. http://dx.doi.org/10.1515/znb-1990-0619.

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Trifluoromethyl substituted α-hydroxy acids with alkyne functions in the side chain are obtained on reaction of trifluoro pyruvates with alkynyl Grignard reagents and alkali metal salts of alkynes, respectively.
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2

Matsumura, Mio, Kaho Tsukada, Kiwa Sugimoto, Yuki Murata, and Shuji Yasuike. "Synthesis of novel alkynyl imidazopyridinyl selenides: copper-catalyzed tandem selenation of selenium with 2-arylimidazo[1,2-a]pyridines and terminal alkynes." Beilstein Journal of Organic Chemistry 18 (July 19, 2022): 863–71. http://dx.doi.org/10.3762/bjoc.18.87.

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Alkynyl selenides have attracted considerable research interest recently, owing to their applications in the biological and pharmaceutical fields. The Cu-catalyzed tandem reaction for the synthesis of novel alkynyl imidazopyridinyl selenides is presented. A one-pot synthesis route afforded alkynyl imidazopyridinyl selenides in moderate to good yields. This was achieved by a two-step reaction between terminal alkynes and diimidazopyridinyl diselenides, generated from imidazo[1,2-a]pyridines and Se powder, using 10 mol % of CuI and 1,10-phenanthroline as the catalytic system under aerobic conditions. The C(sp2)–Se and C(sp)–Se bond-formation reaction can be performed in one-pot by using inexpensive and easy to handle Se powder as the Se source. The reaction proceeded with terminal alkynes having various substitutions, such as aryl, vinyl, and alkyl groups. The obtained alkynyl imidazopyridinyl selenide was found to undergo nucleophilic substitution reaction on Se atom using organolithium reagents and 1,3-dipolar azide–alkyne cycloaddition based on the alkyne moiety.
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Cheng, Jiang, Bingbing Wang, and Song Sun. "The n-dig-Cyclization (n = 5, 6) of Alkynes Involving Fixation of CO2." Synlett 29, no. 14 (June 11, 2018): 1814–22. http://dx.doi.org/10.1055/s-0037-16110021.

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Being an abundant, easily available, and renewable one-carbon source, carbon dioxide has received much attention in organic synthesis. However, carbon dioxide is a thermodynamically inert molecule that is hard to incorporate into useful chemicals. Nevertheless, various elegant methods have been developed for the incorporation of carbon dioxide in a number of heterocycles. In this review, we summarize and update the recent advances in n-dig-cyclization of alkynes involving the fixation of CO2, including the 5-dig- and 6-dig-cyclization of alkynes.1 Introduction2 The 5-dig-Cyclization of Alkynes3 The 6-dig-Cyclization of Alkynes4 Conclusion
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Alabugin, Igor, Edgar Gonzalez-Rodriguez, Rahul Kawade, Aleksandr Stepanov, and Sergei Vasilevsky. "Alkynes as Synthetic Equivalents of Ketones and Aldehydes: A Hidden Entry into Carbonyl Chemistry." Molecules 24, no. 6 (March 15, 2019): 1036. http://dx.doi.org/10.3390/molecules24061036.

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The high energy packed in alkyne functional group makes alkyne reactions highly thermodynamically favorable and generally irreversible. Furthermore, the presence of two orthogonal π-bonds that can be manipulated separately enables flexible synthetic cascades stemming from alkynes. Behind these “obvious” traits, there are other more subtle, often concealed aspects of this functional group’s appeal. This review is focused on yet another interesting but underappreciated alkyne feature: the fact that the CC alkyne unit has the same oxidation state as the -CH2C(O)- unit of a typical carbonyl compound. Thus, “classic carbonyl chemistry” can be accessed through alkynes, and new transformations can be engineered by unmasking the hidden carbonyl nature of alkynes. The goal of this review is to illustrate the advantages of using alkynes as an entry point to carbonyl reactions while highlighting reports from the literature where, sometimes without full appreciation, the concept of using alkynes as a hidden entry into carbonyl chemistry has been applied.
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Balamurugan, Rengarajan, Naganaboina Naveen, Seetharaman Manojveer, and Masthan Vali Nama. "Homo and Heterocoupling of Terminal Alkynes Using Catalytic CuCl2 and DBU." Australian Journal of Chemistry 64, no. 5 (2011): 567. http://dx.doi.org/10.1071/ch11080.

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Homocoupling of terminal alkynes has been efficiently achieved using catalytic amounts of CuCl2 and DBU. This methodology could be extended to couple two different terminal alkynes together by taking one of the alkyne partners, preferably the electron rich alkyne, in five fold excess than the other.
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Jover, Jesús. "Copper-Catalyzed Eglinton Oxidative Homocoupling of Terminal Alkynes: A Computational Study." Journal of Chemistry 2015 (2015): 1–8. http://dx.doi.org/10.1155/2015/430358.

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The copper(II) acetate mediated oxidative homocoupling of terminal alkynes, namely, the Eglinton coupling, has been studied with DFT methods. The mechanism of the whole reaction has been modeled using phenylacetylene as substrate. The obtained results indicate that, in contrast to some classical proposals, the reaction does not involve the formation of free alkynyl radicals and proceeds by the dimerization of copper(II) alkynyl complexes followed by a bimetallic reductive elimination. The calculations demonstrate that the rate limiting-step of the reaction is the alkyne deprotonation and that more acidic substrates provide faster reactions, in agreement with the experimental observations.
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Schumacher, Ricardo F., Benhur Godoi, Carla K. Jurinic, and Andrei L. Belladona. "Diorganyl Dichalcogenides and Copper/Iron Salts: Versatile Cyclization System To Achieve Carbo- and Heterocycles from Alkynes." Synthesis 53, no. 15 (March 24, 2021): 2545–58. http://dx.doi.org/10.1055/a-1463-4098.

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AbstractOrganochalcogen-containing cyclic molecules have shown several promising pharmacological properties. Consequently, different strategies have been developed for their synthesis in the past few years. Particularly due to the low cost and environmental aspects, copper- and iron-promoted cyclization reactions of alkynyl substrates have been broadly and efficiently applied for this purpose. This short review presents an overview of the most recent advances in the synthesis of organochalcogen-containing carbo- and heterocycles by reacting diorganyl disulfides, diselenides, and ditellurides with alkyne derivatives in the presence of copper and iron salts to promote cyclization reactions.1 Introduction2 Synthesis of Carbo- and Heterocycles via Reactions of Alkynes with Diorganyl Dichalcogenides and Copper Salts3 Synthesis of Carbo- and Heterocycles via Reactions of Alkynes with Diorganyl Dichalcogenides and Iron Salts4 Conclusions
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Davenel, Vincent, Chloé Puteaux, Christian Nisole, Fabien Fontaine-Vive, Jean-Marie Fourquez, and Véronique Michelet. "Indium-Catalyzed Cycloisomerization of 1,6-Cyclohexenylalkynes." Catalysts 11, no. 5 (April 24, 2021): 546. http://dx.doi.org/10.3390/catal11050546.

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Efficient four- and five-step routes to access functionalized bicyclo[3.2.1]oct-2-ene and bicyclo[3.3.1]nonadiene via indium-mediated cycloisomerization of 1,6-enynes has been developed. This atom-economical catalytic process was optimized and relied on the efficiency of InCl3 leading to the preparation of functionalized bicyclic adducts in up to 99% isolated yield. The cyclization occurred on two different processes (5-exo versus 6-endo pathway) and were influenced by the substitution of the alkynyl moiety. The exo process was favored for non-substituted alkynes whereas the endo pathway was generally observed for substituted alkynes. Then, the presence of electron-withdrawing groups on the aryl substituted alkyne increased the ratio of the exo isomer. DFT calculations were performed on stability of intermediates and corroborated the intervention of InCl3.
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Chotana, Ghayoor A., Jose R. Montero Bastidas, Susanne L. Miller, Milton R. Smith, and Robert E. Maleczka. "One-Pot Iridium Catalyzed C–H Borylation/Sonogashira Cross-Coupling: Access to Borylated Aryl Alkynes." Molecules 25, no. 7 (April 10, 2020): 1754. http://dx.doi.org/10.3390/molecules25071754.

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Borylated aryl alkynes have been synthesized via one-pot iridium catalyzed C–H borylation (CHB)/Sonogashira cross-coupling of aryl bromides. Direct borylation of aryl alkynes encountered problems related to the reactivity of the alkyne under CHB conditions. However, tolerance of aryl bromides to CHB made possible a subsequent Sonogashira cross-coupling to access the desired borylated aryl alkynes.
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Yang, Shuliang, Changyan Cao, Li Peng, Jianling Zhang, Buxing Han, and Weiguo Song. "A Pd–Cu2O nanocomposite as an effective synergistic catalyst for selective semi-hydrogenation of the terminal alkynes only." Chemical Communications 52, no. 18 (2016): 3627–30. http://dx.doi.org/10.1039/c6cc00143b.

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A new type lead-free Pd–Cu2O nanocomposite catalyst shows “double” selectivities for hydrogenation of alkynes: only terminal alkynes hydrogenated and only alkenes produced, i.e. no internal alkyne is hydrogenated.
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Dissertations / Theses on the topic "Alkynes"

1

Yasui, Hiroto. "Studies on Addition to 1-Aryl-1-alkynes and N-Alkynyl Amides." 京都大学 (Kyoto University), 2008. http://hdl.handle.net/2433/57271.

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Kyoto University (京都大学)
0048
新制・課程博士
博士(工学)
甲第13827号
工博第2931号
新制||工||1433(附属図書館)
26043
UT51-2008-C743
京都大学大学院工学研究科材料化学専攻
(主査)教授 大嶌 幸一郎, 教授 檜山 爲次郎, 教授 松原 誠二郎
学位規則第4条第1項該当
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Edwards, Andrew R. "Polyfluorinated alkenes and alkynes." Thesis, Durham University, 1997. http://etheses.dur.ac.uk/4772/.

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The research described within this thesis may be divided into four main subject areas: 1) The use of (Z)-2H-heptafluorobut-2-ene (10) as a synthon for hexafluorobut- 2-yne (4) in Diels-Alder reactions was investigated. Novel 'one-pot' routes to a variety of bis(trifluoromethyl) substituted furan and arene derivatives were discovered, along with the synthesis of the novel diene, bis(trifluoromethyl)cyclopentadiene (46), from cyclopentadiene.2) A variety of nucleophiles were successfully reacted with (10), the products of which were identical to those that have been, or would be expected to be, formed from the reaction of the same nucleophile with (4). A novel route to a fluorinated quinoline derivative was also discovered.3) Perfluoroperhydrophenanthrene (74) was used as a 'bulking agent' to replace the hydrocarbon solvent used in halogen exchange reactions for the preparation of octafluorocyclopentene (3), chlorofluoro -pyridine, -pyrimidine, and -benzene derivatives. New 'one-pot' syntheses of hexafluorobut-2-yne (4), octafluorobut-2-ene (6) and hexafluorocyclobutene (2) were also discovered.4) Various routes were explored in an attempt to improve the present literature preparations of tetrafluoropropyne (79), including pyrolysis and elimination methods. Tetrafluoroallene (81), and trace amounts of (79), were found to be formed on the elimination of hydrogen fluoride from 2H-pentafluoropropene (5).
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Vega, Hernández Karen de la. "Radical Germylzincation of Alkynes." Thesis, Sorbonne université, 2019. https://accesdistant.sorbonne-universite.fr/login?url=http://theses-intra.upmc.fr/modules/resources/download/theses/2019SORUS072.pdf.

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Le développement d'une approche radicalaire pour la germylzincation des alcynes en tant que voie simple et générale pour la préparation de vinylgermanes polysubstitués était l'axe central de ce travail. Dans le cadre de ce projet, nous avons démontré que l'addition régio- et stéréosélective de germanium et de zinc sur la triple liaison C‒C d’ynamides terminaux et internes peut être réalisée par réaction avec un mélange d'hydrogermane et de diéthylzinc dans un processus radicalaire. La principale caractéristique de cette nouvelle approche est la possibilité de fonctionnaliser la liaison C(sp2)‒Zn créée par substitution électrophile in situ cupro- ou pallado-catalysée avec rétention de la géométrie de la double liaison. Notamment, la fonctionnalisation de la liaison C(sp2)‒Ge a également été réalisée, augmentant la valeur synthétique des germylénamides. L’approche de germylzincation radicalaire a été étendue à d’autres alcynes substitués avec un hétéroatome en α, ainsi qu’aux alcynes classiques, avec d’excellents niveaux de stéréocontrôle. Ce travail représenté une avancée importante par rapport à l’état de l’art en offrant un accès modulaire à des vinylgermanes di-, tri- et tétrasubstitués élaborés, inaccessibles jusqu’à présent par d’autres méthodes. Dans une perspective plus large, la généralisation de l’approche d’élémentozincation radicalaire a également été abordée de manière préliminaire
The development of a general radical approach for the germylzincation of alkynes as a straightforward route for the preparation of polysubstituted vinylgermanes was the central axis of this work. Within this project, we disclosed that the regio- and stereoselective addition of germanium and zinc across the C‒C triple bond of terminal and internal ynamides was achieved by reaction with a combination of a hydrogermane and diethylzinc in a radical chain process. The key feature of this new approach was the possibility of using the C(sp2)‒Zn bond created as linchpin for subsequent in situ Cu(I)- or Pd(0)-mediated electrophilic substitution with retention of the double bond geometry. Notably, functionalization of the C(sp2)‒Ge bond was also achieved, enhancing germylenamides’ synthetic value. The radical germylzincation approach was further extended to other α-heteroatom-substituted alkynes, as well as more challenging conventional alkynes with excellent levels of stereocontrol. This work marked an important advance over prior art by offering modular access to elaborated di-, tri- and tetrasubstituted vinylgermanes that were not accessible by other methods thus far. From a wider perspective, the generality of the radical elementozincation approach was also preliminarily considered
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Guo, Xun-Xiang. "Studies on Rhodium-Catalyzed Alkynylation of Alkynes, Allenes and Conjugate Enones with Terminal Alkynes." 京都大学 (Kyoto University), 2008. http://hdl.handle.net/2433/124355.

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Zargarian, Davit. "Palladium-catalyzed carbonylation of alkynes." Thesis, University of Ottawa (Canada), 1992. http://hdl.handle.net/10393/7555.

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This thesis describes the palladium-catalyzed carbonylation of alkynes with formic acid. Terminal alkynes react with formic acid in the presence of catalytic amounts of Pd(OAc)$\sb2$ and suitable phosphine ligands (120 psi of CO gas pressure, 100-110$\sp\circ$C) to produce the unsaturated carboxylic acids CR(COOH)=CH$\sb2,$ 1, and (E)-CHR=CH(COOH), 2. The combined yields of 1 and 2 for various R's range from 60 to 90%. The regioselectivity is approximately 90:10 in favour of 1 when R is a phenyl or a straight chain alkyl group; 2 is the favoured product when R is t-Bu and the exclusive one when R is SiMe$\sb3.$ Under similar conditions, internal alkynes react with formic acid to produce the unsaturated carboxylic acids (E)-CR(COOH)=CHR$\sp\prime$, 3, and (E)-CHR=CR$\sp\prime$(COOH), 4, also in 60-90% combined yields. The regioselectivity of this reaction, however, is not as high as for terminal alkynes. Oxalic acid can be used instead of formic acid in both of these reactions. The most suitable phosphine ligands for alkyne hydrocarboxylation in the present system are PPh$\sb3$ and dppb (1,4-bis(diphenylphosphino)butane). In some cases, using a mixture of these two ligands remarkably improves the reaction yields; the implications of such ligand synergism are discussed. On the basis of deuterium labelling studies and other experimental results, a reaction mechanism has been proposed which involves the addition of the O-H bond of formic acid to form a cationic hydrido(alkyne) intermediate. This intermediate is thought to undergo a sequence of reactions, including hydride and CO insertions, to give the acid product and regenerate the active catalyst. Terminal alkynes undergo dicarbonylation upon reacting with formic acid and/or water in a catalytic system consisting of $\rm PdCl\sb2/CuCl\sb2/O\sb2/CO$ (room temperature, atmospheric pressure); the products are monosubstituted maleic anhydrides and the corresponding maleic and fumaric acids in 30-75% combined yields. The product distribution is influenced by both the steric bulk of the alkyne substituent and the amount of water present in the reaction medium. Internal alkynes are unreactive in this system. Among the solvents tested, THF is the most suitable one. Phosphines and phosphites completely inhibit the reaction. In contrast to most systems in which CuCl$\sb2$ acts as the principal oxidant for converting Pd(0) to Pd(II), the role of CuCl$\sb2$ in the present system seems to be secondary to that of oxygen. For instance, modest catalytic turnovers are observed in the absence of CuCl$\sb2$, whereas no catalysis occurs if oxygen is excluded from the system, even in the presence of excess CuCl$\sb2$. These and other observation are rationalized by invoking various oxidation schemes involving oxygen as the main oxidant. The role of CuCl$\sb2$ is thought to be one of facilitating the catalysis by forming a heterometallic Cu/Pd complex.
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Lawson, James. "The reactivity of borocations with alkynes." Thesis, University of Manchester, 2015. https://www.research.manchester.ac.uk/portal/en/theses/the-reactivity-of-borocations-with-alkynes(71be0441-dae2-4f4f-b570-a02000bdf7de).html.

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It has been found that by combining various borocations or neutral electrophilic boranes with a multitude of alkynes, interesting and often highly selective borylation reactivity is observed. The reactions can be loosely categorised as de-(elemento)boration of the alkyne, haloboration and carboboration. Direct alkyne de-(elemento)boration was achieved as both dehydroboration and desilylboration, generating a selection of borylated alkynes. Other examples of more complicated alkyne borylation were also observed, such as the boroamination of TMS-ethylene. Upon discovering that 2-N,N-dimethylaminopyridine ligated dichloro-boronium salt underwent selective 1,2-haloboration with a range of terminal alkynes, and that the dibromo-analogue could haloborate a limited number of internal alkynes, the more Lewis acidic borenium salt [Cl2B(2,6-lutidine)][AlCl4] was synthesised and reacted with a series of internal alkynes to give haloborated products. These included dialkyl and diaryl internal alkynes containing a range of functional groups including thioether, methoxyphenyl, vinyl and halide. Each proceeded with excellent stereo- and regio-selectivity, with the boron and the halide added mutually cis, and the regioselectivity determined by the electronically most stable form of the carbocation intermediate. The initial dihalovinyl borane products were esterified in-situ to provide the more stable pinacol boronate esters. The elementoboration method was expanded via modification of the borocations to include different transfer groups that, upon reaction with trimethylsilyl-substituted alkynes, underwent 1,1-carboboration, with migration of the TMS-group. This method also provided access to a small selection of borylated dienes, resulting from reactions with excess alkyne. It was also shown that some neutral boranes reacted analogously with certain TMS-alkynes, albeit with limitations on scope. In addition to this, two types of 1,2-carboboration were discovered. The first involved intercepting products from alkyne haloboration with a TMS-alkyne, undergoing a vinylboration to produce 1-boradiene products. The second was an example of an intermolecular trans carboboration, where the initially formed vinyl carbocation is intercepted by a thiophene.
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Thompsett, Andrew Robert. "The coordination chemistry of unusual alkynes." Thesis, University of Warwick, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.302650.

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Warner, Andrew. "Borylative cyclisation of alkynes using BCl3." Thesis, University of Manchester, 2017. https://www.research.manchester.ac.uk/portal/en/theses/borylative-cyclisation-of-alkynes-using-bcl3(7a4e56f3-e8c6-4c68-97ec-4596ef5e0ce2).html.

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Boron trichloride, a cheap and commercially available Lewis acid, has been demonstrated to activate alkynes possessing appropriate nucleophiles, facilitating borylative cyclisation. This reaction furnishes polycyclic compounds possessing a new C(sp2)-B bond externally to the newly formed ring (through concomitant C-C and C-B bond formation). The RBCl2 intermediates generated from cyclisation were esterified with pinacol to furnish air/moisture stable boronic esters. This methodology has been applied to the following classes of starting materials: 1,4-disubstituted but-1-ynes (including N- and O- linked analogues), 2-alkynylanisoles, 2-alkynylthioanisoles and 1,2-bis(alkynyl)benzenes. Thus, borylated scaffolds such as dihydronaphthalenes, dihydroquinolines, 2H-chromenes, benzofurans, benzothiophenes, dibenzopentalenes and benzofulvenes have been synthesised. A variety of functionalities (e.g. amines, esters, nitriles) were tolerated by the reaction, with a number of substrates cyclised on either a gram scale, or under ambient conditions, demonstrating the robust nature of this methodology. An oxidation reaction with [Ph3C][BF4] was carried out on some of the borylated dihydronaphthalene compounds to obtain borylated naphthalenes. Suzuki-Miyaura cross-coupling reactions were carried out on certain borylated cycles to furnish new C-C bonds and generate analogues of established pharmaceuticals such as Nafoxidine or Raloxifene, demonstrating the synthetic value of these borylated cycles. Additionally, a one-pot borylative cyclisation/Suzuki-Miyaura cross-coupling reaction was also developed. Throughout this investigation, alternative reactivity has been observed when using BCl3 to activate certain alkynes, including intermolecular 1,2-trans-carboboration and a rare example of N- and O-directed 1,2-trans-haloboration. Additionally, multiple borylative cyclisations have been carried out on an appropriate alkyne to obtain a B-doped polyaromatic hydrocarbon (PAH), which has potential material-based applications.
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Maah, M. J. "Transition metal complexes derived from phospha-alkynes." Thesis, University of Sussex, 1987. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.381631.

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Greenhalgh, Mark David. "Iron-catalysed hydrofunctionalisation of alkenes and alkynes." Thesis, University of Edinburgh, 2015. http://hdl.handle.net/1842/17624.

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The iron-catalysed hydrofunctionalisation of alkenes and alkynes has been developed to give a range of functionalised products with control of regio-, chemo- and stereochemistry. Using a bench-stable iron(II) pre-catalyst, the hydrosilylation, hydroboration, hydrogermylation and hydromagnesiation of alkenes and alkynes has been achieved. Iron-catalysed hydrosilylation, hydroboration and hydrogermylation of terminal, 1,1- and 1,2-disubstituted alkyl and aryl alkenes and alkynes was developed, in which the active iron catalyst was generated in situ (Scheme A1). Alkyl and vinyl silanes and pinacol boronic esters were synthesised in good to excellent yield in the presence of a range of functional groups. Catalyst loadings as low as 0.07 mol% were demonstrated, along with catalyst turn-over frequencies of up to 60 000 mol h−1. The iron-catalysed formal hydrocarboxylation of a range of styrene derivatives has been developed for the synthesis of α-aryl carboxylic acids using carbon dioxide and ethylmagnesium bromide as the stoichiometric hydride source (Scheme A2). Detailed mechanistic studies have shown this reaction proceeds by iron-catalysed hydromagnesiation to give an intermediate benzylic organomagnesium reagent. The nature of the active catalyst and reaction mechanism have been proposed.
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Books on the topic "Alkynes"

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Alexandrovna, Maretina I., Boris I. Ionin, and John C. Tebby. Alkynes in Cycloadditions. Chichester, UK: John Wiley & Sons Ltd, 2013. http://dx.doi.org/10.1002/9781118709313.

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1933-, Tebby John C., ed. Alkynes in cycloadditions. Chichester, West Sussex: Wiley, 2014.

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Greenhalgh, Mark. Iron-Catalysed Hydrofunctionalisation of Alkenes and Alkynes. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-33663-3.

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Marsh, K. N., ed. Densities of Aliphatic Hydrocarbons: Alkenes, Alkadienes, Alkynes. Berlin/Heidelberg: Springer-Verlag, 1996. http://dx.doi.org/10.1007/b59735.

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Imamoglu, Yavuz, ed. Metathesis Polymerization of Olefins and Polymerization of Alkynes. Dordrecht: Springer Netherlands, 1998. http://dx.doi.org/10.1007/978-94-011-5188-7.

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Simonneau, Antoine. Gold-Catalyzed Cycloisomerization Reactions Through Activation of Alkynes. Cham: Springer International Publishing, 2014. http://dx.doi.org/10.1007/978-3-319-06707-0.

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Imamoglu, Yavuz. Metathesis Polymerization of Olefins and Polymerization of Alkynes. Dordrecht: Springer Netherlands, 1998.

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Haines, Alan H. Methods for the oxidation of organic compounds: Alkanes, alkenes, alkynes, and arenes. London: Academic Press, 1985.

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Trost, Barry M., and Chao-Jun Li, eds. Modern Alkyne Chemistry. Weinheim, Germany: Wiley-VCH Verlag GmbH & Co. KGaA, 2014. http://dx.doi.org/10.1002/9783527677894.

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Michael, Zuzanek, ed. Troizen, Alkyone. Frankfurt am Main: P. Lang, 2007.

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Book chapters on the topic "Alkynes"

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Li, Jie Jack, and Minmin Yang. "Alkynes." In Drug Discovery with Privileged Building Blocks, 1–15. Boca Raton: CRC Press, 2021. http://dx.doi.org/10.1201/9781003190806-1.

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Vollhardt, Peter, and Neil Schore. "Alkynes." In Organic Chemistry, 962–1031. New York: Macmillan Learning, 2014. http://dx.doi.org/10.1007/978-1-319-19197-9_13.

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Aime, S. "From Alkynes." In Inorganic Reactions and Methods, 232–40. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2007. http://dx.doi.org/10.1002/9780470145272.ch34.

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Ikeda, Shin-ichi. "Reaction of Alkynes." In Modern Organonickel Chemistry, 102–36. Weinheim, FRG: Wiley-VCH Verlag GmbH & Co. KGaA, 2005. http://dx.doi.org/10.1002/3527604847.ch4.

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Atwood, David A. "(III) With Alkynes." In Inorganic Reactions and Methods, 162. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2007. http://dx.doi.org/10.1002/9780470145296.ch151.

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Atwood, David A. "(II) With Alkynes." In Inorganic Reactions and Methods, 169–70. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2007. http://dx.doi.org/10.1002/9780470145296.ch161.

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Went, C. "Alkenes and Alkynes." In Work Out Organic Chemistry, 148–63. London: Macmillan Education UK, 1988. http://dx.doi.org/10.1007/978-1-349-09726-5_9.

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Vančik, Hrvoj. "Alkenes and Alkynes." In Basic Organic Chemistry for the Life Sciences, 39–57. Cham: Springer International Publishing, 2014. http://dx.doi.org/10.1007/978-3-319-07605-8_4.

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Bochmann, Manfred. "Alkyne complexes." In Organometallics 2. Oxford University Press, 1994. http://dx.doi.org/10.1093/hesc/9780198558132.003.0003.

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This chapter examines alkyne complexes. Alkynes (acetylenes) form complexes with transition metals in a similar way to alkenes, and similar bonding schemes can be applied. However, there are characteristic differences in the bonding of alkynes to metals compared to alkenes. Alkynes are stronger π-acceptors than alkenes; they have two orthogonal π-systems and can act as 2- as well as 4-electron donor ligands. Moreover, alkynes frequently undergo insertion reactions and are readily cyclotrimerized to give arenes. The chapter then studies the synthesis and bonding of alkyne complexes. Alkyne ligands can adopt a variety of coordination modes in mono and polynuclear complexes. The chapter also assesses the reactivity of alkynes. Alkynes, like alkenes, insert readily into metal–hydride bonds to give vinyl complexes.
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G. Denis, Meakins. "Alkynes." In Functional Groups. Oxford University Press, 1996. http://dx.doi.org/10.1093/hesc/9780198558675.003.0006.

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This chapter focuses on the differences between alkynes and alkenes, particularly those that affect synthetic work. It explains that one difference concerns the CC double bond, which is usually created from saturated intermediates by elimination but is formed in a different way in alkynes. In these, ethene is widely used in building up the higher members and other compounds containing the triple bond. The chapter observes that alkynes are less reactive than alkenes, but with nucleophiles, the relative reactivity is reversed as simple alkenes do not undergo nucleophilic addition while simple alkynes undergo few additions. It discusses the hydrogenation of an alkyne with a poisoned catalyst that stops at the alkene stage.
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Conference papers on the topic "Alkynes"

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Santi, Claudio, Marcello Tiecco, Lorenzo Testaferri, Chun-wing Steven Si, Stefano Santoro, Blerina Gjoka, and Benedetta Battistelli. "Selenium catalyzed oxidation of alkynes in aqueous media." In The 13th International Electronic Conference on Synthetic Organic Chemistry. Basel, Switzerland: MDPI, 2009. http://dx.doi.org/10.3390/ecsoc-13-00227.

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Sanmartin, Raul, Esther Domínguez, Garazi Urgoitia, and María Teresa Herrero. "Efficient preparation of carboxylic acids from alkynes." In MOL2NET 2017, International Conference on Multidisciplinary Sciences, 3rd edition. Basel, Switzerland: MDPI, 2017. http://dx.doi.org/10.3390/mol2net-03-05091.

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Behring, Lydia, Christian Trapp, Robert Wodtke, Konstantin Kuhne, Birgit Belter, Jörg Steinbach, Jens Pietzsch, and Reik Löser. "Dipeptide-derived Alkynes as Novel Irreversible Inhibitors of Cathepsin B." In 35th European Peptide Symposium. Prompt Scientific Publishing, 2018. http://dx.doi.org/10.17952/35eps.2018.064.

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Wang, Cai-Xia, Xin-Hua Li, Cai-Xia Zhao, and Hong-Ping Xiao. "Reductive, Regioselective Addition of Benzenethiyl Radical to Alkynes via 2,2'-Dithiosalicylic Acid." In 2015 International Conference on Medicine and Biopharmaceutical. WORLD SCIENTIFIC, 2016. http://dx.doi.org/10.1142/9789814719810_0058.

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Gai, Rafaela, Ricardo F. Schumacher, and Gilson Zeni. "Synthesis of tetrahydroselenophene derivatives by electrophilic cyclization of 1-butylseleno-4-alkynes." In 14th Brazilian Meeting on Organic Synthesis. São Paulo: Editora Edgard Blücher, 2013. http://dx.doi.org/10.5151/chempro-14bmos-r0356-1.

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Biajoli*, André F. P., and Adriano L. Monteiro. "Reaction of vinylbromides with alkynes using ppm amounts of Pd as catalyst." In 15th Brazilian Meeting on Organic Synthesis. São Paulo: Editora Edgard Blücher, 2013. http://dx.doi.org/10.5151/chempro-15bmos-bmos2013_2013822174633.

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Frota, Carlise, Allan F. C. Rossini, Rogério A. Gariani, and Cristiano Raminelli. "Selective coupling reaction between 2,6-diiodoanisoles and terminal alkynes catalyzed by palladium complex." In 14th Brazilian Meeting on Organic Synthesis. São Paulo: Editora Edgard Blücher, 2013. http://dx.doi.org/10.5151/chempro-14bmos-r0057-1.

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Crespo, Lívia Tenório C., Geisa Pires Nogueira de Lima, Marcio C. S. de Mattos, and Pierre M. Esteves. "Use of tribromoisocyanuric acid to conversion of alkynes into a,a-dibromo ketones." In 14th Brazilian Meeting on Organic Synthesis. São Paulo: Editora Edgard Blücher, 2013. http://dx.doi.org/10.5151/chempro-14bmos-r0227-1.

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Sanmartin, Raul, Esther Domínguez, Garazi Urgoitia, and María Teresa Herrero. "Diyne formation from alkynes in the presence of palladium pincer complexes." In MOL2NET 2017, International Conference on Multidisciplinary Sciences, 3rd edition. Basel, Switzerland: MDPI, 2017. http://dx.doi.org/10.3390/mol2net-03-05090.

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Srinivasakannan, Lakshmi, Subramanian Kulandaivelu, and Madhulatha Wuppalamarthi. "Terminal alkynes as a position abstraction tool for the preparation of nano materials." In 2008 International Conference on Nanoscience and Nanotechnology (ICONN). IEEE, 2008. http://dx.doi.org/10.1109/iconn.2008.4639249.

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Reports on the topic "Alkynes"

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Atwood, Jim, D. Catalytic Hydration of Alkenes and Alkynes. Office of Scientific and Technical Information (OSTI), March 2003. http://dx.doi.org/10.2172/808955.

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