Studies toward the Photochemical Synthesis of Functionalized [5]- and [6]Carbohelicenes
作者:Morwenna S. M. Pearson、David R. Carbery
DOI:10.1021/jo900785k
日期:2009.8.7
An efficient route to nonsymmetrical helical menthyl esters by means of an oxidative photocyclization reaction of dissymmetric bis-stilbenes is reported. The developed route allows the introduction of functionality on rings A, E, or F, and the influence of the substituent pattern on the photochemical reaction has been examined. Diastereoselectivity is observed when a double chiral induction strategy