Готові списки джерел за темами / Palladium - N - heterocyclic carbene

Добірка наукової літератури з теми "Palladium - N - heterocyclic carbene"

Автор: Grafiati
Опубліковано: 18 травня 2024

Оформте джерело за APA, MLA, Chicago, Harvard та іншими стилями

Оберіть тип джерела:

Зміст

Ознайомтеся зі списками актуальних статей, книг, дисертацій, тез та інших наукових джерел на тему "Palladium - N - heterocyclic carbene".

Біля кожної праці в переліку літератури доступна кнопка «Додати до бібліографії». Скористайтеся нею – і ми автоматично оформимо бібліографічне посилання на обрану працю в потрібному вам стилі цитування: APA, MLA, «Гарвард», «Чикаго», «Ванкувер» тощо.

Також ви можете завантажити повний текст наукової публікації у форматі «.pdf» та прочитати онлайн анотацію до роботи, якщо відповідні параметри наявні в метаданих.

Статті в журналах з теми "Palladium - N - heterocyclic carbene"

1

Feng, Can, Cheng-xin Liu, Yu-fang Wang, Jin Cui, and Ming-jie Zhang. "Synthesis and characterization of a new bis-NHC palladium complex and its catalytic activity in the Mizoroki–Heck reaction." Journal of Chemical Research 44, no. 11-12 (May 14, 2020): 684–88. http://dx.doi.org/10.1177/1747519820917883.

Повний текст джерела
Анотація:
A new bis- N-heterocyclic carbene palladium complex, (C13H9N2F2)2PdCl2, is synthesized by a three-step reaction and characterized by 1H NMR and 13C NMR spectroscopy as well as by X-ray crystallography. This new bis- N-heterocyclic carbene palladium complex has excellent stability and is capable of efficiently catalyzing the Mizoroki–Heck coupling reaction of aryl halides with acrylates.
Стилі APA, Harvard, Vancouver, ISO та ін.
2

Ren, Li, Austin C. Chen, Andreas Decken, and Cathleen M. Crudden. "Chiral bidentate N-heterocyclic carbene complexes of Rh and Pd." Canadian Journal of Chemistry 82, no. 12 (December 1, 2004): 1781–87. http://dx.doi.org/10.1139/v04-165.

Повний текст джерела
Анотація:
The synthesis of a new chiral, bidentate oxazoline/imidazolidene carbene precursor is described. This species is reacted with various metal salts in the presence of a base to generate rhodium and palladium complexes, which are characterized spectroscopically and crystallographically.Key words: chiral N-heterocyclic carbene, rhodium, palladium, oxazolidine, asymmetric catalysis.
Стилі APA, Harvard, Vancouver, ISO та ін.
3

Sprengers, Jeroen W., Jeroen Wassenaar, Nicolas D. Clement, Kingsley J. Cavell, and Cornelis J. Elsevier. "Palladium-(N-Heterocyclic Carbene) Hydrogenation Catalysts." Angewandte Chemie International Edition 44, no. 13 (March 18, 2005): 2026–29. http://dx.doi.org/10.1002/anie.200462930.

Повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
4

Sprengers, Jeroen W., Jeroen Wassenaar, Nicolas D. Clement, Kingsley J. Cavell, and Cornelis J. Elsevier. "Palladium-(N-Heterocyclic Carbene) Hydrogenation Catalysts." Angewandte Chemie 117, no. 13 (March 18, 2005): 2062–65. http://dx.doi.org/10.1002/ange.200462930.

Повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
5

Xu, Lijin, Weiping Chen, Jamie F. Bickley, Alexander Steiner, and Jianliang Xiao. "Fluoroalkylated N-heterocyclic carbene complexes of palladium." Journal of Organometallic Chemistry 598, no. 2 (April 2000): 409–16. http://dx.doi.org/10.1016/s0022-328x(00)00008-5.

Повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
6

Bergbreiter, David E., Haw-Lih Su, Hisao Koizumi, and Jianhua Tian. "Polyisobutylene-supported N-heterocyclic carbene palladium catalysts." Journal of Organometallic Chemistry 696, no. 6 (March 2011): 1272–79. http://dx.doi.org/10.1016/j.jorganchem.2010.10.058.

Повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
7

Li, Jianxiao, Can Li, Lu Ouyang, Chunsheng Li, Wanqing Wu, and Huanfeng Jiang. "N-Heterocyclic carbene palladium-catalyzed cascade annulation/alkynylation of 2-alkynylanilines with terminal alkynes." Organic & Biomolecular Chemistry 15, no. 37 (2017): 7898–908. http://dx.doi.org/10.1039/c7ob01889d.

Повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
8

Wang, Tao, Lantao Liu, Kai Xu, Huanping Xie, Hui Shen, and Wen-Xian Zhao. "Synthesis and characterization of trinuclear N-heterocyclic carbene–palladium(ii) complexes and their applications in the Suzuki–Miyaura cross-coupling reaction." RSC Advances 6, no. 103 (2016): 100690–95. http://dx.doi.org/10.1039/c6ra20852e.

Повний текст джерела
Анотація:
Five novel trinuclear N-heterocyclic carbene–palladium(ii) complexes 5a–e were conveniently synthesized in one step. The obtained palladium(ii) complexes were the effective catalyst precursors for the Suzuki–Miyaura coupling.
Стилі APA, Harvard, Vancouver, ISO та ін.
9

Abdellah, Ibrahim, Pauline Kasongo, Axel Labattut, Régis Guillot, Emmanuelle Schulz, Cyril Martini, and Vincent Huc. "Benzyloxycalix[8]arene: a new valuable support for NHC palladium complexes in C–C Suzuki–Miyaura couplings." Dalton Transactions 47, no. 39 (2018): 13843–48. http://dx.doi.org/10.1039/c8dt02550a.

Повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
10

Steeples, Elliot, Alexandra Kelling, Uwe Schilde, and Davide Esposito. "Amino acid-derived N-heterocyclic carbene palladium complexes for aqueous phase Suzuki–Miyaura couplings." New Journal of Chemistry 40, no. 6 (2016): 4922–30. http://dx.doi.org/10.1039/c5nj03337c.

Повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
Більше джерел

Дисертації з теми "Palladium - N - heterocyclic carbene"

1

Ellul, Charles. "Trimetallic N-heterocyclic carbene complexes." Thesis, University of Bath, 2011. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.538279.

Повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
2

Arentsen, Katherine. "Application of palladium N-heterocyclic carbene complexes in catalysis." Thesis, University of Sussex, 2006. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.430951.

Повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
3

Diebolt, Olivier. "N-heterocyclic carbene ligands in palladium and iridium organometallic chemistry." Thesis, University of St Andrews, 2010. http://hdl.handle.net/10023/2126.

Повний текст джерела
Анотація:
The use of ligand in transition-metal catalysed reactions has had a considerable impact. The present manuscript aims at showing the influence of ligands in the palladium catalysed Suzuki-Miyaura cross-coupling reaction. In chapter one, the mechanism of this reaction will be described based on the numerous contribution published in the literature. It will be shown that the electronic and steric properties of the ligands have a huge repercussion on the catalytic activity of the metal. In the second chapter, the electronic and steric properties of the widely used Buchwald-phosphine ligand will be investigated. For this purpose, bis-carbonyl iridium(I) complexes were synthesized and their characterization allowed determining their TEP (Tolman electronic parameter) and their buried volume %V[subscript(bur)]. Then three next chapters of this thesis will focus on the syntheses and characterizations of new palladium complexes bearing N-heterocyclic carbenes (NHC). Their design was made in a view to obtain high activity in cross coupling reaction, particularly in the Suzuki-Miyaura cross coupling. Their activation under the catalytic conditions leads to the formation of palladium(0) species that can be mono- or bis-ligated. The influence of the ligand on the catalyst activity will be discussed. A palladium(II) precatalyst leading to mono-ligated active species will be described. Its activity in cross-coupling is very good, since activated and non-activated aryl chlorides could be coupled with aryl boronic acids at room temperature using low catalyst loadings. Unfortunately, the catalyst activity decreased with temperature. This result showed the fragility of the mono-ligated active species. In a view to obtain more robust catalysts that can perform high turnover numbers, new palladium(II) precatalysts bearing two ancillary ligands were developed. Mixed systems NHC- phosphites and NHC-phosphines are described. NHC-phosphites precatalysts displayed very good activity, but the phosphites are unfortunately sensitive to reaction conditions, limiting their role of active species shield. NHC-phosphine bearing complexes were highly active and could perform up to 10,000 turnovers with unactivated aryl chlorides. Very interestingly, these catalysts were also able to couple benzylchlorides and allyl chlorides with a wide range of boronic acids at very low catalyst loadings. These reactions had also the great advantage to proceed in aqueous solvents at very high substrate concentration. The activation mechanism of these complexes was investigated. Dichloropalladium(II) complexes were reduced under the catalytic conditions to lead palladium(0) species. Therein, it is shown that this reduction step was rate-determining in catalysis. Some palladium(0) intermediates xxiv were synthesized and showed good to excellent activities at low temperature under the exact same conditions. They displayed high reactivity towards oxygen and moisture and have to be handled under inert atmosphere. A particular complex had the ability to react with molecular dioxygen to form a stable peroxo-complex. Interestingly, this complex displayed excellent activity in water under aerobic conditions. This system was of great advantage since the reaction could be set up under air using cheap and user-friendly reagents displaying low toxicity. Moreover, the readily available distilled water used as solvent did not require prior degassing. Symmetrical and unsymmetrical bis-NHC palladium(0) complexes were successfully synthesized. They display excellent activity in the Suzuki-Miyaura cross coupling and turnover frequencies as high as 300 could be obtained at room temperature with unactivated arylchlorides and arylboronic acids. These complexes were also found excellent catalysts for the coupling of benzylchlorides with arylboronic acids. Mechanistic studies showed that no ligand dissociation occurred during the coupling suggesting as bis-ligated active species.
Стилі APA, Harvard, Vancouver, ISO та ін.
4

Titcomb, Lisa Rae. "Novel palladium N-heterocyclic carbene complexes as catalysts for aminations." Thesis, University of Sussex, 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.395012.

Повний текст джерела
Анотація:
The work described in this thesis is primarily focused on the synthesis and characterisation of two-coordinate zerovalent palladium complexes bearing an N-heterocyclic carbene ligand. These complexes have been assessed as pre-catalysts for coupling reactions in particular ami nation reactions involving the generation of a C-N bond. Chapter 1 presents the synthesis of complexes r, r bearing the ligand [CNCBu)(CH)2NCBu)]. An alternative synthesis for [Pd{CNCBu)(CH)2NCBu)h] 1 is reported involving reaction of [{Pd(T)3-C4H7)Clhl with sodium dimethyl malonate and carbene. Reaction of 1 with iodobenzene led to formation of a Pd(II) speCies, r , [Pd{CNCBu)(CHhNCBu)h(C6Hs)I] 2. An intermediate in the synthesis of 1, r [Pd(T)3-C4H7){CNCBu)(CHhNCBu)h(C6Hs)C] 3, has been isolated and fully characterised. Two r , mixed carbene phosphine complexes, [Pd{CNCBu)(CHhNCBu)}{P(o-tolylh}] 4 and r , [Pd{CNCBu)(CHhNCBu)} {PCY3} 1 S, have also been synthesised. Complexes 1,4 and S have been assessed as a pre-catalysts for ami nation couplings with limited success. Chapter 3 presents the r , synthesis of two complexes bearing the ligand [CN(Me)(CMe)2N(Me)]. Metal vapour synthesis was r , used to synthesise [Pd{CN(Me)(CMehN(Me)h] 6 and the diiodide complex r , [Pd{CN(Me)(CMehN(Me)hI2] 7 was also prepared. Complexes 6 and 7 were shown to have no activity as pre-catalysts in amination couplings. Chapter 4 presents the synthesis of complexes r· ~. bearing the ligand [CN(2,6-'Pr2-C6H3)(CH2hN(2,6-'PrrC6H3)]. The methodology used to synthesise r. ~. 1 was applied to the synthesis of [Pd{CN(2,6-'Pr2-C6H3)(CH2hN(2,6-'PrrC6H3)h] 8. Substitution of a phosphine ligand In [Pd {P(o-tolylh hl by carbene led to formation of r. ~. [Pd{CN(2,6-'PrrC6H3)(CH2hN(2,6-'PrrC6H3)}{P(o-tolyl)3}] 9. Complexes 8 and 9 were successfully employed as pre-catalysts for amination couplings. 4-Chlorotoluene was shown to couple to a variety of primary and secondary amines including cyclic, acyclic and aryl substituted as well as an imine. The same proceedure was also used to couple chloropyridines with morpho line Reactions were typically conducted with 2 mol% pre-catalyst and KOtBu base in dioxane at 100 °C and were found to be complete after 0.5-5 h. The isolated yields of product obtained were typically r· ~. above 95%. Reaction of 1 with [CN(2,6-'Pr2-C6H3)(CH2hN(2,6-'Pr2-C6H3)] led to formation of r \ r. ~. [Pd{CN(,Bu)(CH)2N(,Bu)} {CN(2,6-'Pr2-C6H3)(CH2hN(2,6-'Pr2-C6H3)}] 10. Complex 10 was found to be less active as a pre-catalyst for amination couplings than either 8 or 9. A copper carbene r. ~. complex [Cu {CN(2,6-'Pr2-C6H3)(CH2)2N(2,6-'Pr2-C6H3)} I] 11 was also synthesised and shown to facilitate the coupling of 4-iodotoluene with morpholine to give the coupled product in a 38% yield. Chapter 5 presents the results of some ligand substitution reactions. Complexes 1 and 8 were reacted with phosphines to give mixed carbene phosphine complexes 4, S and 9. The results obtained showed that phosphines can displace carbenes despite the strength of metal carbene bonds
Стилі APA, Harvard, Vancouver, ISO та ін.
5

Gallop, Christopher W. D. "N-heterocyclic carbene-palladium and -copper complexes in cross-coupling reactions." Thesis, University of Sussex, 2015. http://sro.sussex.ac.uk/id/eprint/54338/.

Повний текст джерела
Анотація:
Chapter 1 gives the reader a background on cross-coupling reactions, in particular palladium mediated couplings. Furthermore the importance of ligands, including phosphines and N-heterocyclic carbenes (NHC), in such cross-coupling reactions is explored. Chapter 2 provides a background to the reductive lithiation of phosphines, followed by an account of our investigation of BINAP functionalisation by means of reductive elimination.1 The reaction was examined by experimental means and through the use of density functional theory to predict 31P NMR chemical shifts. Chapter 3 provides background on the Heck reaction and selected developments over the years, with particular reference to the use of aryl chlorides in the reaction. A brief discussion of NHC based palladium complex sets the scene for our investigation of a new class of (NHC)-Pd catalysts developed by the Navarro group. Complexes of type (NHC)PdCl2(TEA) (TEA = triethylamine) have been tested for their activity in the Heck reaction, focusing on the scope of the reaction with electron-deficient aryl chlorides and electron-rich aryl bromides.2 Chapter 4 gives an account of the discovery and developments of the Sonogashira reaction. Particular attention is paid to non-classical systems such as palladium-only and copper-only protocols. Herein our investigation into the use of collaborative (NHC)-Pd and (NHC)-Cu in Sonogashira reactions is presented.3 Notable features of this system are the low catalyst loadings and the synthetically convenient conditions in which the reaction can be carried namely non-anhydrous solvents and in air. Publications: (1) Gallop, C. W. D.; Bobin, M.; Hourani, P.; Dwyer, J.; Roe, S. M.; Viseux, E. M. E. J. Org. Chem. 2013, 6522–6528. (2) Gallop, C. W. D.; Zinser, C.; Guest, D.; Navarro, O. Synlett 2014, 2225–2228. (3) Gallop, C. W. D.; Chen, M.-T.; Navarro, O. Org. Lett 2014, 3724–3727.
Стилі APA, Harvard, Vancouver, ISO та ін.
6

Zinser, Caroline Magdalene. "Palladium and gold N-heterocyclic carbene complexes : synthesis and catalytic applications." Thesis, University of St Andrews, 2019. http://hdl.handle.net/10023/17066.

Повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
7

Sprick, Reiner Sebastian. "Polytriarylamines containing fused ring and heterocyclic structures prepared using N-heterocyclic carbene complexes of palladium." Thesis, University of Manchester, 2013. https://www.research.manchester.ac.uk/portal/en/theses/polytriarylamines-containing-fused-ring-and-heterocyclic-structures-prepared-using-nheterocyclic-carbene-complexes-of-palladium(c09188eb-490b-452c-945a-22979f58c76d).html.

Повний текст джерела
Анотація:
For the preparation of semiconducting polymers often ‘standard’ catalytic systems are used without further optimisation. New ligands, such as N-heterocyclic carbenes have shown excellent activity in cross-coupling reactions (e.g. Suzuki-Miyaura reaction, or Hartwig-Buchwald amination). These systems show excellent conversions under mild conditions and even allow the use of aryl chlorides as reagents. Nevertheless, previously no system has been reported for the synthesis of conjugated polymers, e.g. the Suzuki polycondensation or Buchwald-Hartwig type polycondensation using these catalysts. A NHC-Pd based catalytic system was optimised for a polyamination reaction and the catalyst [(IPr)Pd(allyl)Cl] was found to be the most active. Polytriarylamines were synthesised using the optimised catalytic system and tested in organic field-effect transistors. Mobilities found were low which was found to be attributed to the presence of high molecular weight fractions. Molecular weights were controlled using an in situ end-capping approach and polymers tested in the semiconducting layer of OFETs gave similar mobilities tothose reported earlier. Several polytriarylamines, which have not been reported previously, were synthesised using NHC-chemistry and the in situ end-cappingapproach, as well as polytriarylamines that have been reported previously using Pd/phosphine catalysts. One library containing polymers based on biphenyles andbridged biphenyles and another library containing polymers with bridged oligoarenes were synthesised. Suzuki polycondensation was also studied besides the polyamination protocol and low catalyst loadings and reaction temperatures could be realised using a NHC-Pd catalyst. Sulfur containing monomers that could not be polymerised using the polyamination were polymerised successfully. All polymers were fully characterised and studied as the active layer in organic field-effect transistors. The highest mobilities determined for these polymers (~10-2 cm2/Vs) is close to the highest reported for this class of polymer reported to date.
Стилі APA, Harvard, Vancouver, ISO та ін.
8

Kirian, Lewis Alexandra Katharine de. "Synthesis and catalytic applications of nickel and palladium N-heterocyclic carbene complexes." Thesis, University of Sussex, 2004. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.424203.

Повний текст джерела
Анотація:
The oxidative addition products trans-[Pd(NHC)2(Ar)Cl] (NHC = cyclo-C{N`BuCH}2; Ar = Me-4-C6H4, MeO-4-C6H4, CO2Me-4-C6H4) have been isolated in good yields from the reactions of ArCI with the amination precatalyst [Pd(NHC)2] and structurally characterized. The former undergo reversible dissociation of one NHC ligand at elevated temperatures, and a value of 25.57 kcal mol-1 has been determined for the Pd- NHC bond dissociation enthalpy in the case where Ar = Me-4-C6H4. Detailed kinetic studies (via extensive NMR studies) have established that the oxidative addition reactions proceed by a dissociative mechanism. Rate data for the oxidative addition of Me-4-C6H4Cl to [Pd(NHC)2] compared to that obtained for the [Pd(NHC)2}-catalysed coupling of morpholine with 4-chlorotoluene are consistent with a rate-determining oxidative addition in the catalytic amination reaction. The relative rates of oxidative addition of the three aryl chlorides to [Pd(NHC)21(CO2Me-4-C6H4C1> Me-4-C6H4C1> MeO-4-C6H4C1) reflect the electronic nature of the substituents and also parallel observed trends in the coupling efficiency for these aryl halides in aminations. Transmetallations tudies resulted in the isolation and structural characteristaiono f palladacycle [Pd(cyclo-C{N`BuCH}2)(μ-O(2-CH2C6H4))]2 from the reaction of [Pd(NHC)2] with 2-chlorobenzylalcohol. Attempts to isolate and fully characterise [Pd(cyclo-C{N'BuCH}2)(μ-O(2-CH2CH2C6H4))]2 and the amine analogue [Pd(cyclo- C {N`BuCH}2)(μ-NH(2-CH2C6H4))]2 were unsuccessful. Attempts to prepare [Ni(cyclo-C{NtBuCH}Z)] by a conventional route led to the formation of several unexpected Ni-NHC complexes. The reaction between [Ni(1,5- COD)2] and 1,3-bis-tert-butylimidazol-2-ylidene in the presence of silicone grease affords the siloxane bridged dimer [Ni(cyclo-C{N`BuCH}2)(O{Me2SiOSiMe2}-it- 0)]2. Using greaseless apparatus, the same reaction yields the Ni-Ni dimer [Ni(cyclo-C{N`BuCH}2)( -(cyclo-C{N`BuCH} {NCH}))]2, via two structurally characterised intermediates V
Стилі APA, Harvard, Vancouver, ISO та ін.
9

Guest, Daniel P. "Synthesis of novel N-heterocyclic carbene-palladium complexes and their catalytic activity." Thesis, University of Sussex, 2017. http://sro.sussex.ac.uk/id/eprint/68087/.

Повний текст джерела
Анотація:
Chapter 1: Gives the reader a background on carbenes paying particular attention to N-heterocyclic carbenes (NHCs). The chapter describes NHC's electronic and structural properties and their behaviour as ligands. The recent usage of NHC-palladium complexes as catalysts for cross-coupling reactions is explored. Chapter 2: Provides a background on NHC-palladium complexes bearing N-donors as throwaway ligands, highlighting the importance of throw-away ligands on catalytic activity. The chapter describes the preparation of a number of novel NHC-palladium complexes bearing throw-away ligands and the activity of (IPr*)PdCl2(TEA) in Buchwald-Hartwig aminations is explored. Chapter 3: Provides a background on the Mizoroki Heck reaction, focusing on the importance of charged intermediates in the process. Then reviews the current development of anionic NHC-palladium complexes in the literature. An account of the discovery and preparation of novel [(NHC)PdCl3[TBA] complexes and the catalytic activity of [(SIPr)PdCl3[TBA] in Mizoroki-Heck coupling reactions is given. A plausible Amotore-Jutand type mechanism is proposed which is supported by DFT calculations provided by research collaborators. Chapter 4: Provides a background on C-H activation reactions catalysed by palladium compounds with particular focus on acetoxylation reactions. The chapter describes the synthesis of [(NHC)PdCl2X][Y] complexes including the development of [(IMes)PdCl2OAc][TBA] and its performance in acetoxylation reactions. A proposed mechanism for the reaction of [(IMes)PdCl2OAc][TBA] is discussed, using experimental observations.
Стилі APA, Harvard, Vancouver, ISO та ін.
10

Navarro-Fernandez, Oscar. "Synthesis, Activation and Catalytic Activity of N-Heterocyclic Carbene Bearing Palladium Catalysts." ScholarWorks@UNO, 2006. http://scholarworks.uno.edu/td/330.

Повний текст джерела
Анотація:
The syntheses and characterization of a series of (NHC)Pd(II) complexes (NHC = N-heterocyclic carbene) are described. A variety of architectures and precursors have been employed to lead to numerous air- and moisture-stable complexes. The use of those complexes as pre-catalysts in cross-coupling (Suzuki- Miyaura, Buchwald-Hartwig) and related (catalytic dehalogenation, £-ketone arylation) reactions is also discussed. A comparison of the activity of a variety of (NHC)Pd complexes as pre-catalysts for cross-coupling reactions was carried out. The results indicate that the activation of those pre-catalysts, leading to the catalytically active [(NHC)Pd(0)] species, was key in assuring high catalytic performance under mild reaction conditions. For the first series of complexes described, (NHC)Pd(allyl)Cl complexes, a better understanding of the process leading to the catalytically active species has permitted us to introduce simple modifications (alkyl or aryl groups at the allyl moiety) that dramatically alter the performance of the complexes by facilitating their activation, decreasing reaction times, catalyst loadings and even allowing reactions to be conducted at room temperature. Catalyst loadings as low as 0.05 mol% can be used for the Suzuki-Miyaura crosscoupling of aryl chlorides and aryl boronic acids at room temperature, leading to the synthesis of poly-ortho-substituted biaryls in excellent yields. This catalyst loading is the lowest ever used for this purpose. The system also allows for the first examples of coupling between aryl chlorides and alkenyl boronic acids at room temperature. When the temperature is raised to 80 ¢ XC for these reactions, a catalyst loading as low as 50 ppm can be used to effectively carry out Suzuki-Miyaura cross-couplings in remarkably short reaction times. As an added advantage, these complexes are air- and moisture-stable and can be prepared in a facile one-pot, multigram scale synthesis from commercially available starting materials in very high yields. The second series of complexes described revolves around the (NHC)Pd(acac)n framework. These complexes are also air- and moisture-stable and can be prepared in a one-step synthesis in high yields from commercially available materials. These complexes were tested forƒn £-ketone arylation and Buchwald-Hartwig amination reactions affording high yields of the desired products, in short reaction times and mild reaction conditions.
Стилі APA, Harvard, Vancouver, ISO та ін.
Більше джерел

Книги з теми "Palladium - N - heterocyclic carbene"

1

Kühl, Olaf. Functionalised N-heterocyclic carbene complexes. Hoboken, N.J: Wiley, 2009.

Знайти повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
2

Kühl, Olaf. Functionalised N-heterocyclic carbene complexes. Hoboken, N.J: Wiley, 2009.

Знайти повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
3

Kühl, Olaf. Functionalised N-heterocyclic carbene complexes. Chichester, U.K: Wiley, 2010.

Знайти повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
4

Functionalised N-heterocyclic carbene complexes. Hoboken, N.J: Wiley, 2009.

Знайти повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
5

Vogel, Carola S. High- and Low-Valent tris-N-Heterocyclic Carbene Iron Complexes. Berlin, Heidelberg: Springer Berlin Heidelberg, 2012. http://dx.doi.org/10.1007/978-3-642-27254-7.

Повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
6

Zou, Taotao. Anti-Cancer N-Heterocyclic Carbene Complexes of Gold(III), Gold(I) and Platinum(II). Singapore: Springer Singapore, 2016. http://dx.doi.org/10.1007/978-981-10-0657-9.

Повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
7

Cazin, Catherine Suzanne Julienne. N-Heterocyclic Carbenes in Transition Metal Catalysis and Organocatalysis. Dordrecht: Springer Science+Business Media B.V., 2011.

Знайти повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
8

service), SpringerLink (Online, ed. High- and Low-Valent tris-N-Heterocyclic Carbene Iron Complexes: A Study of Molecular and Electronic Structure. Berlin, Heidelberg: Springer Berlin Heidelberg, 2012.

Знайти повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
9

Kühl, Olaf. Functionalised N-Heterocyclic Carbene Complexes. Wiley & Sons, Incorporated, John, 2010.

Знайти повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
10

Kühl, Olaf. Functionalised N-Heterocyclic Carbene Complexes. Wiley & Sons, Limited, John, 2010.

Знайти повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
Більше джерел

Частини книг з теми "Palladium - N - heterocyclic carbene"

1

Hoyos, Mario, Daniel Guest, and Oscar Navarro. "(N-Heterocyclic Carbene)-Palladium Complexes in Catalysis." In N-Heterocyclic Carbenes, 85–110. Weinheim, Germany: Wiley-VCH Verlag GmbH & Co. KGaA, 2014. http://dx.doi.org/10.1002/9783527671229.ch04.

Повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
2

Scott, Natalie M., and Steven P. Nolan. "Cross-coupling Reactions Catalyzed by Palladium N-Heterocyclic Carbene Complexes." In N-Heterocyclic Carbenes in Synthesis, 55–72. Weinheim, Germany: Wiley-VCH Verlag GmbH & Co. KGaA, 2006. http://dx.doi.org/10.1002/9783527609451.ch3.

Повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
3

Díez-González, Silvia, and Steven P. Nolan. "Palladium-catalyzed Reactions Using NHC Ligands." In N-Heterocyclic Carbenes in Transition Metal Catalysis, 47–82. Berlin, Heidelberg: Springer Berlin Heidelberg, 2006. http://dx.doi.org/10.1007/978-3-540-36930-1_3.

Повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
4

Viciu, Mihai S., and Steven P. Nolan. "The Use of N-Heterocyclic Carbenes as Ligands in Palladium-Mediated Catalysis." In Topics in Organometallic Chemistry, 241–78. Berlin, Heidelberg: Springer Berlin Heidelberg, 2005. http://dx.doi.org/10.1007/b104134.

Повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
5

Fang, Xinqiang, and Yonggui Robin Chi. "N-Heterocyclic Carbene Catalysis." In Nonnitrogenous Organocatalysis, 151–83. Boca Raton, Florida : CRC Press, [2018] | Series: Organocatalysis series: CRC Press, 2017. http://dx.doi.org/10.1201/9781315371238-7.

Повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
6

Wu, Linglin, Alvaro Salvador, and Reto Dorta. "Chiral MonodendateN-Heterocyclic Carbene Ligands in Asymmetric Catalysis." In N-Heterocyclic Carbenes, 39–84. Weinheim, Germany: Wiley-VCH Verlag GmbH & Co. KGaA, 2014. http://dx.doi.org/10.1002/9783527671229.ch03.

Повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
7

Rivera, Guillermina, and Robert H. Crabtree. "Chelate and Pincer Carbene Complexes." In N-Heterocyclic Carbenes in Synthesis, 223–39. Weinheim, Germany: Wiley-VCH Verlag GmbH & Co. KGaA, 2006. http://dx.doi.org/10.1002/9783527609451.ch9.

Повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
8

Peris, Eduardo. "Routes to N-Heterocyclic Carbene Complexes." In N-Heterocyclic Carbenes in Transition Metal Catalysis, 83–116. Berlin, Heidelberg: Springer Berlin Heidelberg, 2006. http://dx.doi.org/10.1007/978-3-540-36930-1_4.

Повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
9

Jahnke, Mareike C., and F. Ekkehardt Hahn. "Chemistry of N-Heterocyclic Carbene Ligands." In Topics in Organometallic Chemistry, 95–129. Berlin, Heidelberg: Springer Berlin Heidelberg, 2009. http://dx.doi.org/10.1007/978-3-642-04722-0_4.

Повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
10

Cavell, Kingsley J., and Adrien T. Normand. "N-Heterocyclic Carbene Complexes: Decomposition Pathways." In Catalysis by Metal Complexes, 299–314. Dordrecht: Springer Netherlands, 2010. http://dx.doi.org/10.1007/978-90-481-2866-2_13.

Повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.

Тези доповідей конференцій з теми "Palladium - N - heterocyclic carbene"

1

Liu, Qiao, Yong Zhou, Qianru Li, and Wenbo Lan. "Physical calculation and molecular simulation of nitrogen heterocyclic carbene palladium." In Second International Conference on Biomedical and Intelligent Systems (IC-BIS2023), edited by Ming Chen and Gangmin Ning. SPIE, 2023. http://dx.doi.org/10.1117/12.2688197.

Повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
2

Arabzadeh Nosratabad, Neda, Zhicheng Jin, Liang Du, and Hedi Mattoussi. "N-Heterocyclic carbene-stabilized gold nanoparticles and luminescent quantum dots." In Colloidal Nanoparticles for Biomedical Applications XVII, edited by Marek Osiński and Antonios G. Kanaras. SPIE, 2022. http://dx.doi.org/10.1117/12.2610485.

Повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
3

Silbestri, Gustavo, Gabriela Fernández, María Vela Gurovic, Nelda Olivera, and Alicia Chopa. "Synthesis and Antimicrobial Activities of Gold(I) N-heterocyclic Carbene Complexes." In The 16th International Electronic Conference on Synthetic Organic Chemistry. Basel, Switzerland: MDPI, 2012. http://dx.doi.org/10.3390/ecsoc-16-01015.

Повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
4

Mattoussi, Hedi, Neda Arabzadeh Nosratabad, Liang Du, and Zhicheng Jin. "N-Heterocyclic Carbene-stabilized QDs and Gold Nanoparticles: Effects of the Ligand Coordination." In Internet NanoGe Conference on Nanocrystals. València: Fundació Scito, 2021. http://dx.doi.org/10.29363/nanoge.incnc.2021.053.

Повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
5

Vita, Diana E., Mercedes A. Badajoz, Marcos J. Lo Fiego, and Gustavo F. Silbestri. "Synthesis of N-Heterocyclic Carbene Gold Complexes Using 2,4,6-Trimethylphenyl Sydnone as Model Substrate †." In International Electronic Conference on Synthetic Organic Chemistry. Basel Switzerland: MDPI, 2022. http://dx.doi.org/10.3390/ecsoc-26-13674.

Повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
6

Boyarsky, V., A. Mikherdov, S. Baikov, P. Savko, R. Suezov та R. Trifonov. "С,N-CHELATED CARBENE COMPLEXES OF PALLADIUM(II) AS POTENTIAL PHARMACOLOGICALLY ACTIVE COMPOUNDS". У MedChem-Russia 2021. 5-я Российская конференция по медицинской химии с международным участием «МедХим-Россия 2021». Издательство Волгоградского государственного медицинского университета, 2021. http://dx.doi.org/10.19163/medchemrussia2021-2021-50.

Повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
7

Cingolani, Andrea, Rita Mazzoni, Valerio Zanotti, Matteo Sanviti, Laura Mazzocchetti, Tiziana Benelli, and Loris Giorgini. "Bis-amino functionalized iron N-heterocyclic carbene as epoxy resins hardener and flame behaviour modifier." In THE 9TH INTERNATIONAL CONFERENCE ON STRUCTURAL ANALYSIS OF ADVANCED MATERIALS - ICSAAM 2019. AIP Publishing, 2019. http://dx.doi.org/10.1063/1.5140308.

Повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
8

Fernández, Sergio, Federico Franco, Josep M. Luis, and Julio Lloret-Fillol. "Unravelling the CO2 Reduction Mechanism with a Highly Active N-Heterocyclic Carbene Manganese(I) Electrocatalyst." In nanoGe Spring Meeting 2022. València: Fundació Scito, 2022. http://dx.doi.org/10.29363/nanoge.nsm.2022.343.

Повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
9

Su, Qingzhi, Chaoyang Chai, and Feng Zhao. "Synthesis and Photophysical Properties of Four-Coordinate N-heterocyclic Carbene Copper(Ⅰ) Complex Emitting Material with Brightly Luminescence." In 2018 7th International Conference on Energy and Environmental Protection (ICEEP 2018). Paris, France: Atlantis Press, 2018. http://dx.doi.org/10.2991/iceep-18.2018.277.

Повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
10

Hussaini, Sunusi Y., Rosenani A. Haque, Mohd R. Razali, and A. M. S. Abdul Majid. "Effects of supramolecular interactions in nitrile functionalized silver(I)-N-heterocyclic carbene complexes and investigation into their enhancement of antitumor metallodrugs." In 4TH INTERNATIONAL CONFERENCE ON THE SCIENCE AND ENGINEERING OF MATERIALS: ICoSEM2019. AIP Publishing, 2020. http://dx.doi.org/10.1063/5.0027461.

Повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
Також вас можуть зацікавити розширені добірки на тему "Palladium - N - heterocyclic carbene" для конкретних типів джерел:
Статті в журналах Дисертації Книги
Ми пропонуємо знижки на всі преміум-плани для авторів, чиї праці увійшли до тематичних добірок літератури. Зв'яжіться з нами, щоб отримати унікальний промокод!

До бібліографії