Zinc‐Catalyzed Synthesis of Conjugated Dienoates through Unusual Cross‐Couplings of Zinc Carbenes with Diazo Compounds

Abstract

Zinc‐catalyzed selective cross‐coupling of two carbene sources, such as vinyl diazo compounds and enynones, enabled the synthesis of conjugated dienoate derivatives. This reaction involved the unprecedented coupling of a zinc furyl carbene with vinyl diazo compounds through the γ‐carbon. Alternatively, dienoates were also prepared by a commutative cross‐coupling of zinc vinyl carbenes generated from cyclopropenes and simple diazo compounds.