An Efficient Enantioselective Synthesis of (?)-Serricorole
作者:Wolfgang Oppolzer、In�s Rodriguez
DOI:10.1002/hlca.19930760314
日期:1993.5.12
The cigarette beetle pheromone (–)-serricorole (1) has been synthesized in 23% overall yield by an eight-step sequence starting from N-propionylsultam 3. The synthesis features asymmetric anti- and syn-aldolizations 3 4 and 8 9, a non-destructive N-acylsultam cleavage with lithiated ethylphenylsulfone (10 12), and the smooth, Ti-mediated cyclization of β-acyloxy-ketone 2 to dihydropyranone 14.