Ding H, Ma C, Yang Y, Wang Y. Unexpected Reaction of Dimethyl Acetylenedicarboxylate with in Situ Generated Arylketenes Catalyzed by 1-Methylimidazole.
Org Lett 2005;
7:2125-7. [PMID:
15901150 DOI:
10.1021/ol050492q]
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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.
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