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.
香烟甲虫信息素(-)-香三烯(1)已通过从N-丙酰基磺酰胺3开始的八步合成,以23%的总产率合成。合成设有不对称的抗-和顺式-aldolizations 3 4和8 9,一种非破坏性Ñ -acylsultam裂解与锂化ethylphenylsulfone(10 12),和所述平滑,β酰氧基-酮的钛介导的环化2至dihydropyranone 14。