title: Unexpected reaction of dimethyl acetylenedicarboxylate with in situ generated arylketenes catalyzed by 1-methylimidazole.
abstract: [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.
authors.affiliation: Department of Chemistry, Zhejiang University, Hangzhou 310027, China.
authors.forename: Hanfeng
authors.initials: H
authors.lastname: Ding
authors.forename: Cheng
authors.initials: C
authors.lastname: Ma
authors.forename: Yewei
authors.initials: Y
authors.lastname: Yang
authors.forename: Yanguang
authors.initials: Y
authors.lastname: Wang