Enantioselective Synthesis of Axially Chiral Tetrasubstituted Allenes via Lipase-Catalyzed Desymmetrization
作者:Jan Deska、Matthias Hammel
DOI:10.1055/s-0032-1317524
日期:——
transesterification of prochiral tetrasubstituted allenic diols yielding highly enantioenriched axially chiral allenyl monoesters. In combination with subsequent 5-endo-trig cyclizations geminally disubstituted dihydrofurans are accessible in high optical purity. Lipase from Pseudomonas fluorescens efficiently catalyzes the transesterification of prochiral tetrasubstituted allenic diols yielding highly
摘要 来自荧光假单胞菌的脂肪酶有效地催化前手性四取代的烯丙二醇的酯交换反应,产生高度对映体富集的轴向手性烯基单酯。与随后的5-内-trig环化相结合,可以以高光学纯度获得双甲基双取代的二氢呋喃。 来自荧光假单胞菌的脂肪酶有效地催化前手性四取代的烯丙二醇的酯交换反应,产生高度对映体富集的轴向手性烯基单酯。与随后的5-内-trig环化相结合,可以以高光学纯度获得双甲基双取代的二氢呋喃。