SYNTHESE ET REACTIVITE DU DIAZOETHYLIDENE CYANACETATE D'ETHYLE: PREPARATION DE CYCLOPROPENE ET DE BICYCLOBUTANE GEM-DIACTIVES.

Article abstract of DOI:10.1016/0040-4039(81)80120-7

Ethyl chloromethylidenecyanoacetate, a synthetic equivalent of carbonyl chloride, reacts readily with diazomethane, under the conditions of the Arndt-Eistert synthesis of diazoketones, leading to ethyl diazoethylidenecyanoacetate.This diazocompound is a u