A convenient synthesis of methylenomycin B. Further mechanistic studies on the SET catalyzed electrocyclization of enynones.
作者:Peter A. Jacobi、Reginald O. Cann、David F. Skibbie
DOI:10.1016/s0040-4039(00)74185-2
日期:1992.4
Methylenomycin B (3a) has been prepared in approximately 55% yield by SET catalyzed cyclization of enynone 1a. Mechanistic studies indicate that initial electron donation takes place at C-3 in enolized intermediates of type 2a.