Enantioselective synthesis of 2-alkyl-2-aryl cyclopentanones by asymmetric epoxidation of tetrasubstituted cyclobutylidene olefins and epoxide rearrangement
作者:Yu-Mei Shen、Bin Wang、Yian Shi
DOI:10.1016/j.tetlet.2006.05.175
日期:2006.7
This letter describes a highly enantioselectiveepoxidation of tetrasubstituted benzylidenecyclobutanes using glucose-derived ketone as catalyst and oxone as oxidant. The Et2AlCl promoted rearrangement of the resulting epoxides provides 2-alkyl-2-aryl cyclopentanones with high ees.