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 cycloaddition reaction of the metal carbene complex is remarkably free of competing processes.
在双(六氟乙酰乙酰丙酮)铜(II)催化下,2-重氮-3-氧代丁酸甲酯与脂肪族,芳香族和α,β-不饱和醛的羰基之间的相互作用提供了1,3-二恶唑-4-羧酸酯,可用于制备产量。金属卡宾配合物的明显的1,3-偶极环加成反应明显没有竞争过程。