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Hartwig silylation

WebDec 8, 2010 · One-pot generation of a (hydrido)silyl ether from the carbonyl compound or alcohol is followed by dehydrogenative cyclization at 80-100 °C in the presence of norbornene as a hydrogen acceptor and the combination of 1 mol % [Ir (cod)OMe]2 and 1,10-phenanthroline as a catalyst to form benzoxasiloles. WebLater, Hartwig and co-workers further applied this strategy to the iridium-catalyzed, β-C(sp 3)–H silylation of aliphatic amines to prepare 1,2-amino alcohols by utilizing a methylene linkage between the silyl group and nitrogen atom. 33 Enantiopure 1,2-amino alcohols could be furnished at or even below room temperature by employing electron ...

Publications The Hartwig Group

WebJun 19, 2012 · Based on this hypothesis, we studied catalysts containing substituted phenanthroline ligands for a series of additional transformations, including the silylation … WebHartwig, J.F. “Borylation and Silylation of C–H Bonds: A Platform for Diverse C–H Bond Functionalizations” Acct. Chem. Res. 2012, 45, 864–873 [doi ... publishing date of catcher in the rye https://btrlawncare.com

‪John F. Hartwig‬ - ‪Google Scholar‬

WebJul 14, 2024 · Troshin and Hartwig circumvented this problem by screening three pools of reagents in parallel that shared the same reactive functionality but differed in mass by carefully chosen increments. Specific products could then be identified in a noisy distribution by their distinctive expected mass differences across the three pools. WebHartwig, J.F., Romero, E.A. Iridium-catalyzed silylation of unactivated C-H bonds. Tetrahedron 2024 , 75 , 4059-4070. 406. Karmel, C., Chen, Z., Hartwig, J.F. Iridium-Catalyzed Silylation of C–H Bonds in Unactivated Arenes: A Sterically Encumbered Phenanthroline Ligand Accelerates Catalysis. J. Am. Chem. Soc. 2024 , 141 , 7063 … WebAngewandte Chemie International Edition Communication A Chiral Nitrogen Ligand for Enantioselective, Iridium-Catalyzed Silylation of Aromatic C−H Bonds Dr. Bo Su, Dr. Tai-Gang Zhou, Dr. Xian-Wei Li, Xiao-Ru Shao, Pei-Lin Xu, Dr. Wen-Lian Wu, Prof. Dr. John F. Hartwig, Prof. Dr. Zhang-Jie Shi First published: 15 December 2016 publishing date of crime and punishment

Rhodium-Catalyzed Intermolecular C–H Silylation of …

Category:Transition-metal-catalyzed enantioselective C−H silylation

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Hartwig silylation

Rhodium-Catalyzed Enantioselective Silylation of Arene C–H Bonds ...

WebMay 7, 2024 · The resting state of the catalyst is an iridium disilyl hydride complex (phenanthroline)Ir (SiMe (OTMS) 2) 2 (H) (L), in which L varies with the arene and additives. An iridium disilyl hydride complex was isolated, characterized, and allowed to react with arenes to form aryl silanes.

Hartwig silylation

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WebThe resting state of the catalyst is an iridium disilyl hydride complex (phenanthroline)Ir (SiMe (OTMS) 2) 2 (H) (L), in which L varies with the arene and additives. An iridium disilyl hydride complex was isolated, characterized, and allowed to react with arenes to form aryl silanes. WebFeb 4, 2015 · The silylation proceeds under mild conditions, in the absence of hydrogen acceptors, ligands or additives, and is scalable to greater than 100 grams under …

WebAug 14, 2024 · Mechanistic studies on the rhodium-catalyzed silylation of arene C–H bonds are reported. The resting state of the catalyst was fully characterized by NMR … WebFeb 25, 2015 · Hartwig and Tsukada reported a Pt-catalyzed intramolecular silylation of dimethylphenethylsilane and dimethyl (3- phenylpropyl)silane to furnish the corresponding five- or six-membered...

WebSep 6, 2024 · We report highly enantioselective intramolecular, silylations of unactivated, primary C(sp3)-H bonds. The reactions form dihydrobenzosiloles in high yields with excellent enantioselectivities by functionalization of enantiotopic methyl groups under mild conditions. The reaction is catalyz … WebNov 3, 2024 · In this Minireview, we present the rapid development of enantioselective silylation and borylation of C−H bonds, with an emphasis on the design and …

WebHartwig, J. F. Palladium-Catalyzed Amination of Aryl Halides: Mechanism and Rational Catalyst Design. Synlett 1997, 1997, 329-340. 33. Louie, J., Hartwig, J. F., and A. J. Fry … The Hartwig Group welcomes and is committed to fostering the development …

WebFeb 21, 2014 · Regioselective C-H functionalization of arenes has widespread applications in synthetic chemistry. The regioselectivity of these reactions is often controlled by … publishing date of the time machineWebFeb 14, 2024 · In particular, Hartwig and coworkers 28 have successfully developed a rhodium/bisphosphine catalyzed reaction between MeSiH (OTMS) 2 and various arenes, which demonstrated a broad C–H bond scope... publishing date of jane eyreWebThe resting state of the catalyst is an iridium disilyl hydride complex (phenanthroline)Ir (SiMe (OTMS) 2) 2 (H) (L), in which L varies with the arene and additives. An iridium … sea slayer