Unexpected reaction of dimethyl acetylenedicarboxylate with in situ generated arylketenes catalyzed by 1-methylimidazole.
[reaction: see text]. An unexpected 1-methylimidazole-catalyzed reaction of dimethyl acetylenedicarboxylate (DMAD) with in situ generated arylketenes leading to the synthesis of dimethyl 2-arylidenesuccinates under mild conditions is described. A plausible mechanism has been proposed.
Ding
Hanfeng
H
Department of Chemistry, Zhejiang University, Hangzhou 310027, China.
Ma
Cheng
C
Yang
Yewei
Y
Wang
Yanguang
Y