Palladium catalyzed synthesis of sugar-fused indolines via C(sp2)–H/N H activation
作者:Ashish Kumar Verma、Ande Chennaiah、Sateesh Dubbu、Yashwant D. Vankar
DOI:10.1016/j.carres.2018.12.015
日期:2019.2
A simple Pd(OAc)2 catalyzed strategy for the synthesis of sugar-fused indolines from 2-N-oxalylamido-2-deoxy-C-aryl glycosides is reported by utilizing N-oxalylamido group as an auxiliary via C(sp2)-H/NH Activation. The reaction is successfully applied on glucose as well as galactose derived differently substituted 2-N-oxalylamido-2-deoxy-C-aryl glycosides to give sugar-fused indolines in moderate
The nitro-Michaeladdition of organolithium species to 2-nitroglycal derivatives was investigated. This methodology affords straightforward and stereoselectiveaccess to C-nitroglycosides, which are excellent precursors to C–N-acetylglycosamines. The corresponding products bearing an aromatic, heteroaromatic, alkynyl, alkenyl, or alkyl moiety were isolated in good yields with excellent selectivities