A Regio and Diastereoselective Bromolactamization of d,g-Unsaturaterd Thioimidates

Abstract

substituted E-6,y-unsaturated t h i o i m i d a t e s (sa-f) w i t h bis(co1lidine)bromonium perchlorate, followed by treatment w i t h aqueous sodium carbonate afforded t h e corresponding !-substituted --2-