Organocatalytic Highly Enantioselective Conjugate Addition of Aldehydes to Alkylidine Malonates
作者:Gui-Ling Zhao、Jan Vesely、Junliang Sun、Kirsten E. Christensen、Charlotte Bonneau、Armando Córdova
DOI:10.1002/adsc.200700570
日期:2008.3.25
The first highlyenantioselective, direct organocatalyticconjugateaddition of unmodified aldehydes to alkylidinemalonates is presented. The reaction gives access to β-formyl-substituted malonates and highly functionalized lactones with up to 14:1 dr and generally 94 to >99% ee.