Synthesis of 3-methyleneisoindolin-1-ones via palladium-catalyzed C–Cl bond cleavage and cyclocarbonylation of ortho-chloro ketimines
摘要:
PdCl2(PCY3)(2)-catalyzed cyclocarbonylative coupling of ortho-chloro arylketimines with CO has been investigated to develop an efficient method for the synthesis of isoindolin-1-ones. The developed synthetic method has the advantages of having easily available starting materials, high atom-economy, and high selectively. (C) 2013 Elsevier Ltd. All rights reserved.
A domino three-component condensation of ortho-haloacetophenones with urea or amines: a novel one-pot synthesis of halogen-substituted quinolines
作者:Chuanmei Qi、Qingwei Zheng、Ruimao Hua
DOI:10.1016/j.tet.2008.12.039
日期:2009.2
Halogen-substituted quinolines have been synthesized in good yields by the condensation and cyclization of two molecules of ortho-haloacetophenones with urea or primary amines. The formation of halogen-substituted quinolines takes place through the unexpected catalyst-free cleavage of C(sp2)–X (X=Cl, Br), α-C(sp3)–H bonds and formation of C–C, C–N bonds in a selective manner. The attractive features