Nickel-Catalyzed Direct Alkylation of C–H Bonds in Benzamides and Acrylamides with Functionalized Alkyl Halides via Bidentate-Chelation Assistance
作者:Yoshinori Aihara、Naoto Chatani
DOI:10.1021/ja401344e
日期:2013.4.10
The alkylation of the ortho C-H bonds in benzamides and acrylamides containing an 8-aminoquinoline moiety as a bidentate directing group with unactivated alkylhalides using nickel complexes as catalysts is described. The reaction shows high functional group compatibility. In reactions of meta-substituted aromatic amides, the reaction proceeds in a highly selective manner at the less hindered C-H bond
Rh-Catalyzed General Method for Directed C–H Functionalization via Decarbonylation of <i>in-Situ</i>-Generated Acid Fluorides from Carboxylic Acids
作者:Bangyue He、Xiaojie Liu、Hongyi Li、Xiaofeng Zhang、Yuxi Ren、Weiping Su
DOI:10.1021/acs.orglett.1c01103
日期:2021.6.4
decarbonylative C–H coupling of in-situ-generated acid fluorides with amide substrates bearing ortho-Csp2–H bonds has been developed. This method enables alkyl, aryl, and alkenyl carboxylicacids to undergo decarbonylative coupling with C–H bonds of (hetero)aromatic or alkenyl amides in generally good yields via the in situ conversion of carboxylicacids into acid fluorides and also allows for the functionalization
A facile method for Rh-catalyzed decarbonylative <i>ortho</i>-C–H alkylation of (hetero)arenes with alkyl carboxylic acids
作者:Yiqiang Tian、Xiaojie Liu、Bangyue He、Yuxi Ren、Weiping Su
DOI:10.1039/d1ra03992j
日期:——
facile and effectivemethod for Rh-catalyzed direct ortho-alkylation of C–H bonds in (hetero)arenes with commercially available carboxylic acids has been developed. This strategy was initiated by in situ conversion of carboxylic acids to anhydrides which, without isolation, underwent Rh-catalyzed direct decarbonylative cross-coupling of aryl carboxamides containing 8-aminoquinoline. The reaction proceeds
The Nickel(II)-Catalyzed Direct Benzylation, Allylation, Alkylation, and Methylation of C–H Bonds in Aromatic Amides Containing an 8-Aminoquinoline Moiety as the Directing Group
Direct alkylation via the cleavage of the ortho C–H bonds by a nickel-catalyzed reaction of aromaticamides containing an 8-aminoquinoline moiety as the directing group with alkyl halides is report...