Asymmetric Michael addition reactions of nitroalkanes to 2-furanones catalyzed by bifunctional thiourea catalysts
作者:Zhushuang Bai、Ling Ji、Zemei Ge、Xin Wang、Runtao Li
DOI:10.1039/c5ob00708a
日期:——
The first bifunctionalthiourea catalyzed asymmetricMichaeladdition reactions of nitroalkanes to 2-furanones are described. The highly functionalized γ-lactones with two or three consecutive stereogenic carbons were obtained in high yields (up to 99%), high diastereoselectivities (up to >20 : 1 dr) and enantioselectivities (up to >99% ee).