Syntheses of (−)-Cryptocaryolone and (−)-Cryptocaryolone Diacetate via a Diastereoselective Oxy-Michael Addition and Oxocarbenium Allylation
作者:Aymara M. M. Albury、Michael P. Jennings
DOI:10.1021/jo301122b
日期:2012.8.17
The totalsyntheses of both (−)-cryptocaryolone and (−)-cryptocaryolone diacetate is presented herein. The usage of a diastereoselective oxy-Michael addition/benzylidene acetal formation coupled with a selective axial oxocarbenium allylation allowed for the preparation of the α-C-glycoside moiety present in the bicyclic bridged structure. In addition, the syn-1,3-diol of the linear portion was installed