Ru(II)-Catalyzed Oxidative Olefination of Benzamides: Switchable Aza-Michael and Aza-Wacker Reaction for Synthesis of Isoindolinones
作者:Manoj Kumar、Shalini Verma、Akhilesh K. Verma
DOI:10.1021/acs.orglett.0c01237
日期:2020.6.19
Selective tandem oxidative C–H olefination–aza-Michael/aza-Wacker reaction of N-arylbenzamides is achieved by fine-tuning between base and additive to access valuable 3-oxoisoindolinyls and 3-oxoisoindolinylidenes, respectively. Careful optimization and control experiments provides a guiding principle in the design of a proposed catalytic cycle. The copper–iminium complex acting as a precursor for
Metal-free TBHP-mediated oxidative ring openings of 2-arylimidazopyridines via regioselective cleavage of C–C and C–N bonds
作者:Kelu Yan、Daoshan Yang、Wei Wei、Guoqing Li、Mingyang Sun、Qingyun Zhang、Laijin Tian、Hua Wang
DOI:10.1039/c5ra17740e
日期:——
A highly regioselective TBHP-mediated ring opening of imidazopyridinesviacleavage of C–C and C–N bonds has been realized for the first time to afford usefulN-(pyridin-2-yl)benzamides under mild conditions.