A new convenient synthesis of trisubstituted 1,3-dioxole-4-carboxylates from methyl 2-diazo-3-oxobutyrate and aldehydes
作者:Miguel E. Alonso、A.Wladimir Chitty
DOI:10.1016/s0040-4039(01)82098-0
日期:——
The interaction between methyl 2-diazo-3-oxobutyrate and the carbonyl group of aliphatic, aromatic, and α,β-unsaturated aldehydes under bis(hexafluoroacetoacetonato)copper(II) catalysis furnishes 1,3-dioxole-4-carboxylates in preparatively useful yields. The apparent 1,3-dipolar cycloadditionreaction of the metal carbene complex is remarkably free of competing processes.