Acylketene O,S-acetals 1a-k undergo efficient and selective conjugate displacement of alkylthio group with organocopper(l) reagents to afford the corresponding 6-alkoxy/aryloxy enones 2-21 in good yields.
酰基烯酮O,S-
缩醛1a-k与
有机铜试剂进行有效选择性的烷
硫基共轭置换,以高收率得到相应的6-烷氧基/芳氧基烯酮2-21。