Synthesis of Doubly Unsaturated Aldehydes and Ketones by a Novel β‐Decarbopalladation

Abstract

Excellent diastereoselectivity is observed for the conversion of cyclic vinyl-substituted carbonates into unsaturated open-chain carbonyl compounds [Eq. (1)]. Decisive for the success of this ring opening is a PD0 complex as the catalyst. Cn = complex, also cyclic substituted carbon chains with n = 0, 1, 2, 4, 8; R, R′ = H, Me.