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Статті в журналах з теми "Rh(III)-Catalyzed C-H Activation"
Yang, Xifa, He Wang, Xukai Zhou, and Xingwei Li. "Iridium- and rhodium-catalyzed C–H activation and formyl arylation of benzaldehydes under chelation-assistance." Organic & Biomolecular Chemistry 14, no. 23 (2016): 5233–37. http://dx.doi.org/10.1039/c6ob00825a.
Повний текст джерелаLuo, Haiqing, Qi Xie, Kai Sun, Jianbo Deng, Lin Xu, Kejun Wang, and Xuzhong Luo. "Rh(iii)-catalyzed C-7 arylation of indolines with arylsilanes via C–H activation." RSC Advances 9, no. 32 (2019): 18191–95. http://dx.doi.org/10.1039/c9ra04142g.
Повний текст джерелаHu, Hong, Bin-Shi Li, Jing-Lei Xu, Wei Sun, Yong Wang, and Meng Sun. "Rh(iii)-Catalyzed spiroannulation of ketimines with cyclopropenones via sequential C–H/C–C bond activation." Chemical Communications 58, no. 30 (2022): 4743–46. http://dx.doi.org/10.1039/d2cc00421f.
Повний текст джерелаWang, Qiang, Fang Xie, and Xingwei Li. "Rh(III)-Catalyzed Trifluoromethylthiolation of Indoles via C–H Activation." Journal of Organic Chemistry 80, no. 16 (August 10, 2015): 8361–66. http://dx.doi.org/10.1021/acs.joc.5b00940.
Повний текст джерелаYang, Wei, Jingyi Wang, He Wang, Lei Li, Yuekai Guan, Xianxiu Xu, and Dayu Yu. "Rhodium(iii)-catalyzed three-component cascade synthesis of 6H-benzo[c]chromenes through C–H activation." Organic & Biomolecular Chemistry 16, no. 38 (2018): 6865–69. http://dx.doi.org/10.1039/c8ob01938j.
Повний текст джерелаWang, Liang, Wenting Wu, Qun Chen, and Mingyang He. "Rhodium-catalyzed olefination of aryl tetrazoles via direct C–H bond activation." Org. Biomol. Chem. 12, no. 40 (2014): 7923–26. http://dx.doi.org/10.1039/c4ob01440e.
Повний текст джерелаXie, Peipei, Wei Guo, Dimei Chen, and Yuanzhi Xia. "Multiple pathways for C–H cleavage in cationic Cp*Rh(iii)-catalyzed C–H activation without carboxylate assistance: a computational study." Catalysis Science & Technology 8, no. 16 (2018): 4005–9. http://dx.doi.org/10.1039/c8cy00870a.
Повний текст джерелаGao, Qian-Ci, Yi-Fei Li, Jun Xuan, and Xiao-Qiang Hu. "Practical synthesis of isocoumarins via Rh(III)-catalyzed C–H activation/annulation cascade." Beilstein Journal of Organic Chemistry 19 (January 30, 2023): 100–106. http://dx.doi.org/10.3762/bjoc.19.10.
Повний текст джерелаCui, Yixin, Dachang Bai, Bingxian Liu, Junbiao Chang, and Xingwei Li. "Rh(iii)-Catalyzed acylation of heteroarenes with cyclobutenones via C–H/C–C bond activation." Chemical Communications 56, no. 100 (2020): 15631–34. http://dx.doi.org/10.1039/d0cc05965j.
Повний текст джерелаVivek Kumar, Sundaravel, Sundaram Ellairaja, Vanaparthi Satheesh, Vairathevar Sivasamy Vasantha, and Tharmalingam Punniyamurthy. "Rh-Catalyzed regioselective C–H activation and C–C bond formation: synthesis and photophysical studies of indazolo[2,3-a]quinolines." Organic Chemistry Frontiers 5, no. 18 (2018): 2630–35. http://dx.doi.org/10.1039/c8qo00557e.
Повний текст джерелаДисертації з теми "Rh(III)-Catalyzed C-H Activation"
Peneau, Augustin. "Vers la synthèse totale du 13-desméthyle spirolide C. Synthèse d’hétérocycles par activation C–H catalysée au Rh(III)." Thesis, Université Paris-Saclay (ComUE), 2018. http://www.theses.fr/2018SACLS410/document.
Повний текст джерелаSome marine shellfish toxins in the spiroimine family like gymnodimine and spirolides are produced by dinoflagellates and can be transferred and concentrated in seafood then by vectorial transport they can reach marine animals and humans. Biological studies have shown that these toxins are potent antagonists of the nicotinic acetylcholine receptors (nAChRs) and have a moderate selectivity for subtypes receptor. In the laboratory, we are interested in the total synthesis of gymnodimine and 13-desmethyl spirolide C in order to produce a larger quantity of these molecules (compared to isolation from dinoflagellates) to further investigate their biological activities. In this regard, we developed two complementary approaches to access the spiroimine pattern of these molecules. The first one is based on a decarboxylative asymmetric allylic alkylation reaction. The second uses an intermolecular Diels-Alder reaction.With the need of more sophisticated scaffolds for medicinal chemistry or total synthesis, the development of appropriate ortho-directed C_H activation reactions have proven recently to be crucial. Herein, we propose two simple and efficient intramolecular cyclisation reactions, involving a methoxy-amide directing group and a Rh(III)-catalysis. Synthesis of spiropiperidines and azepinones are presented
Wang, Hui. "Cobalt(III)- and Manganese(I)-Catalyzed C-H and C-C Activations." Doctoral thesis, Niedersächsische Staats- und Universitätsbibliothek Göttingen, 2019. http://hdl.handle.net/11858/00-1735-0000-002E-E5EF-5.
Повний текст джерелаAzambuja, Francisco de 1986. "Ativações C-H catalisadas por Pd(II) e Rh(III) : estudos metodológicos e do mecanismo para a síntese de diariletanos e congêneres e avaliações da sua atividade biológica." [s.n.], 2015. http://repositorio.unicamp.br/jspui/handle/REPOSIP/249877.
Повний текст джерелаTese (doutorado) - Universidade Estadual de Campinas, Instituto de Química
Made available in DSpace on 2018-08-27T10:03:33Z (GMT). No. of bitstreams: 1 Azambuja_Franciscode_D.pdf: 29528823 bytes, checksum: e651bbfc392063bea6be92abe74dbcba (MD5) Previous issue date: 2015
Resumo: Neste trabalho, ativações C-H catalisadas por Pd(II) e Rh(III) foram exploradas para a obtenção de moléculas com potencial atividade biológica, em especial 1,1- e 1,2-diariletanos. Para o paládio, foi investigada a hidroarilação de alcinos de Fujiwara como um método rápido, brando e direto para a obtenção de ?-aril-?-heteroaril acrilatos. Inicialmente, o mecanismo desta reação foi estudada através de estudos de espectrometria de massas e ressonância magnética nuclear para elucidar a atuação do catalisador e os fatores envolvidos na estereosseletividade. Após este estudo, as condições reacionais foram reavaliadas para preparação de ?-aril-?-heteroaril acrilatos em bons rendimentos e seletividades. O paládio também foi usado como catalisador de arilações de Heck-Matsuda empregadas como etapa-chave na síntese de anidridos maleicos diarilados, a partir dos quais novos análogos de combretastatina A4 foram preparados. Estes novos análogos e os adutos da hidroarilação de alcinos de Fujiwara foram submetidos a testes de atividade antiproliferativa em células tumorais humanas. De maneira geral, os produtos de Fujiwara apresentaram melhores perfis de atividades, em especial para linhagens de células de rim e ovário, enquanto que os derivados de anidrido maleico diarilado mostraram-se muito pouco ativos para todas as linhagens. Esta ausência de atividade foi atribuída a interações estéreas desfavoráveis detectadas em estudos preliminares de docagem. Por último, ativações C-H catalisadas por 1,2,3,4,5-pentametilciclopentadienilródio(III) ([Cp*Rh(III)]) foram estudadas em dois projetos diferentes, um envolvendo 1,3-diinos e outro com ?-halo/pseudohalocetonas como parceiros de acoplamento, para a obtenção de diversos bis-heterociclos adjacentes e N-heterociclos monossubstituídos, respectivamente, com ênfase à preparação de núcleos isoquinolona
Abstract: New Pd(II) and Rh(III) catalysed C-H activations methods were developed to the obtaining of potential biologically active molecules, particularly 1,1- e 1,2-diarylethanes. With palladium, the Fujiwara¿s hydroarylation of alkynes was investigated as a fast, mild and direct method to the synthesis of ?-aryl-?-heteroaryl acrylates. Initially, the mechanism of this reaction was studied using nuclear magnetic resonance and mass spectrometry to elucidate the catalyst role and the key factors controlling the stereoselectivity. After, the reaction conditions were optimized in order to prepare the ?-aryl-?-heteroaryl acrylates in good yields and selectivities. The palladium was also applied as catalyst to the Heck-Matsuda arylations employed as the key step to the synthesis of non-symmetric diaryl maleic anhydrides. From such compounds new combretastatin A4 analogs were produced. These new compounds and the Fujiwara adducts were tested against several human tumor cells. The results were much better to the Fujiwara products, especially to kidney and ovary tumor cell lines. In contrast, the diaryl maleic anhydrides derivatives showed very low activity for all kinds of cells tested. This absence of activity was attributed to unfavorable steric interactions detected in preliminary docking studies. Last, the C-H activations catalysed by 1,2,3,4,5-pentamethylciclopentadienylrhodium(III) ([Cp*Rh(III)]) were explored in two different projects: 1) the C-H activation/1,3-diyne strategy to the synthesis of adjacent bis-heterocycles and 2) ?-halo/pseudohaloketones as oxidized alkyne equivalents to the selectively preparation of monosubstituted N-heterocycles, in particular the isoquinolone core
Doutorado
Quimica Organica
Doutor em Ciências
Gadakh, S. K. "Enantioselective synthesis of bioactive molecules and development of synthetic methodologies involving formation of quinoline and coumarin derivatives via Rh-catalyzed ortho C-H bond activation of aromatics." Thesis(Ph.D.), CSIR-National Chemical Laboratory, 2015. https://dspace.ncl.res.in:8080/xmlui/handle/20.500.12252/5939.
Повний текст джерелаAcSIR
臼井, 明日香. "ラジカル超原子価ヨウ素(III)試薬を用いた直接的C-H活性化反応の開発". 京都大学 (Kyoto University), 2015. http://hdl.handle.net/2433/199117.
Повний текст джерелаBettadapur, Kiran R. "Site-selective C-H Functionalization using Directing Group Strategy via C-H Bond Activation." Thesis, 2017. http://etd.iisc.ac.in/handle/2005/4134.
Повний текст джерелаSherikar, Mahadev. "Construction of C-C bonds by C-H Activation: Rh(III)-Catalyzed reactions of Arenes and Heteroarenes with Maleimides and Allylic Alcohols." Thesis, 2021. https://etd.iisc.ac.in/handle/2005/5227.
Повний текст джерелаIndian Institute of Science
Taleb, Sereshki Farzaneh. "Rh-catalyzed asymmetric C-H bond activation by chiral primary amine." 2017. http://hdl.handle.net/1993/32091.
Повний текст джерелаFebruary 2017
Upadhyay, Nitinkumar Satyadev, and 尼堤. "Rhodium (III)–Catalyzed Aerobic Oxidative C‒H Activation towards N-Heterocycles and relevant Bioactive Molecules." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/w5f7gy.
Повний текст джерела國立清華大學
化學系所
105
In recent year transition-metal-catalyzed C‒H activation reaction got considerable attention because of catalytic reaction does not require pre-functionalization also desired product is highly regioselective and utility of reaction can be applicable to synthesis biologically important compounds in one pot operation with high atom-efficacy. In this thesis, aerobic rhodium–catalyzed inter and intra molecular C‒H Bond functionalization reactions are described. For better understanding, I divided this thesis into three chapters. The first chapter describe about rhodium-catalyzed ortho olefination via intramolecular aza-michael addition in water and oxygen as a sole oxidant. In chapter second rhodium catalyzed intramolecular C‒H activation/annulation of aldehydes with alkyne-amines demonstrated in presence of oxygen as an oxidant. The third chapter describe about synthesis of isoquinolones from N-alkyl benzamides and alkynes using Rh(III) catalyst and inexpensive oxygen as the sole oxidant in aqueous medium. Chapter 1 describes a new method for the synthesis of Isoindolium Salts from from 2-arylpyridines and alkenes in aqueous medium under oxygen via Rh(III) catalysis. A reaction mechanism involving an ortho CH olefination of 2-arylpyridine by alkene, intramolecular aza-michael addition, deprotonation at the -carbon of the alkene fragment followed by another michael addition to give the final product is proposed. Chapter 2 deals with the synthesis of indolizidinium, quinolizinium and pyrido[1,2-a]azepinium salts synthesized from benzaldehydes (or ,-unsaturated aldehydes) and alkyne-amines catalyzed by rhodium complex via C–H activation is demonstrated. The present method is successfully applied to the synthesis of natural product, ficuseptine. Chapter 3 illustrates a new approach for highly regioselective synthesis of isoquinolones from N-alkyl benzamides and alkynes using Rh(III) catalyst and inexpensive oxygen as the sole oxidant in aqueous medium, in addition the methodology can be applied to the preparation of biologically active compounds having the isoquinolone core.
Jayakumar and 賈亞庫馬. "Rhodium(III)-Catalyzed C–H Activation as a Key Step for the Synthesis of N-Heterocycles and Related Natural Products." Thesis, 2014. http://ndltd.ncl.edu.tw/handle/532266.
Повний текст джерелаКниги з теми "Rh(III)-Catalyzed C-H Activation"
Lukašēvics, Tomass. Kobalta katalizēta C‒H saites funkcionalizēšana/Cobalt Catalyzed C‒H Bond Functionalization. RTU Press, 2022. http://dx.doi.org/10.7250/9789934227806.
Повний текст джерелаЧастини книг з теми "Rh(III)-Catalyzed C-H Activation"
Wencel-Delord, Joanna, Frederic W. Patureau, and Frank Glorius. "Rh(III)- and Ir(III)-Catalyzed C–C Bond Cross Couplings from C–H Bonds." In C-H Bond Activation and Catalytic Functionalization I, 1–27. Cham: Springer International Publishing, 2015. http://dx.doi.org/10.1007/3418_2015_140.
Повний текст джерелаKim, Jeung Gon, Kwangmin Shin, and Sukbok Chang. "Rh(III)- and Ir(III)-Catalyzed Direct C–H Bond Transformations to Carbon–Heteroatom Bonds." In C-H Bond Activation and Catalytic Functionalization I, 29–51. Cham: Springer International Publishing, 2015. http://dx.doi.org/10.1007/3418_2015_123.
Повний текст джерелаMuralirajan, Krishnamoorthy, and Chien-Hong Cheng. "Rh-Catalyzed Synthesis of Nitrogen-Containing Heterocycles." In Transition Metal-Catalyzed Heterocycle Synthesis via CH Activation, 117–60. Weinheim, Germany: Wiley-VCH Verlag GmbH & Co. KGaA, 2016. http://dx.doi.org/10.1002/9783527691920.ch5.
Повний текст джерелаLiu, Bin, Fang Hu, and Bing-Feng Shi. "Rh-Catalyzed Synthesis of Oxygen-Containing Heterocycles." In Transition Metal-Catalyzed Heterocycle Synthesis via CH Activation, 161–86. Weinheim, Germany: Wiley-VCH Verlag GmbH & Co. KGaA, 2016. http://dx.doi.org/10.1002/9783527691920.ch6.
Повний текст джерелаLiu, Song, Cheng-Xing Cui, Ruopeng Bai, Chun-Xiang Li, and Yu Lan. "Theoretical Study of Rh-Catalyzed C–C Bond Formation Through C–H Activation." In SpringerBriefs in Molecular Science, 27–95. Singapore: Springer Singapore, 2021. http://dx.doi.org/10.1007/978-981-16-0432-4_3.
Повний текст джерелаCarr, Kevin J. T., Stuart A. Macgregor, and Claire L. McMullin. "Computational Studies of Heteroatom-Assisted CH Activation at Ru, Rh, Ir, and Pd as a Basis for Heterocycle Synthesis and Derivatization." In Transition Metal-Catalyzed Heterocycle Synthesis via CH Activation, 1–44. Weinheim, Germany: Wiley-VCH Verlag GmbH & Co. KGaA, 2016. http://dx.doi.org/10.1002/9783527691920.ch1.
Повний текст джерелаK. Patel, Bhisma, and Amitava Rakshit. "Access to N-Heterocyclic Molecules via Ru(II)-Catalyzed Oxidative Alkyne Annulation Reactions." In Ruthenium - an Element Loved by Researchers [Working Title]. IntechOpen, 2021. http://dx.doi.org/10.5772/intechopen.95987.
Повний текст джерела"2.6 C—H Functionalization Catalyzed by Low-Valent Cobalt." In Base-Metal Catalysis 2. Stuttgart: Georg Thieme Verlag KG, 2023. http://dx.doi.org/10.1055/sos-sd-239-00042.
Повний текст джерелаTaber, Douglass. "Enantioselective Construction of Alkylated Stereogenic Centers." In Organic Synthesis. Oxford University Press, 2011. http://dx.doi.org/10.1093/oso/9780199764549.003.0038.
Повний текст джерела