Ruthenium-catalyzed ortho-C–H bond alkylation of aromatic amides with α,β-unsaturated ketones via bidentate-chelation assistance
作者:Guy Rouquet、Naoto Chatani
DOI:10.1039/c3sc50310k
日期:——
chelation assisted reaction using a removable 8-aminoquinoline bidentate directing group that permits the ruthenium-catalyzed ortho-C–H bond alkylation of aromatic amides with various α,β-unsaturated ketones under straightforward conditions has been developed. This methodology represents the first efficient utilization of enones in the ortho directed ruthenium-catalyzed addition of C–H bonds to C–C double bonds
Ruthenium-catalyzed direct arylation of C–H bonds in aromatic amides containing a bidentate directing group: significant electronic effects on arylation
作者:Yoshinori Aihara、Naoto Chatani
DOI:10.1039/c2sc21506c
日期:——
by a ruthenium-catalyzed reaction of aromatic amides having an 8-aminoquinoline moiety with aryl bromides. The reaction shows high functional group compatibility. The reaction proceeds in a highly selective manner at the less hindered C–H bonds of meta-substituted aromatic amides. Significant electronic effects are observed in Hammett plots. Electron-withdrawing groups on the aromatic amides facilitate