Catalytic Enantioselective Synthesis of Naturally Occurring Butenolides via <i>Hetero</i>-Allylic Alkylation and Ring Closing Metathesis
作者:Bin Mao、Koen Geurts、Martín Fañanás-Mastral、Anthoni W. van Zijl、Stephen P. Fletcher、Adriaan J. Minnaard、Ben L. Feringa
DOI:10.1021/ol102994q
日期:2011.3.4
An efficient catalytic asymmetric synthesis of chiral γ-butenolides was developed based on the hetero-allylic asymmetric alkylation (h-AAA) in combination with ring closing metathesis (RCM). The synthetic potential of the h-AAA-RCM protocol was illustrated with the facilesynthesis of (−)-whiskey lactone, (−)-cognac lactone, (−)-nephrosteranic acid, and (−)-roccellaric acid.