Stereospecific 1,4-addition reaction of sulfinylallyl anion: Synthesis of (±)-pentalenolactone e methyl ester
作者:Duy H. Hua、M.Jo Coulter、Ibraheem Badejo
DOI:10.1016/s0040-4039(00)96755-8
日期:1987.1
Stereospecific 1,4-Addition reaction of lithiated sulfinylallyl anion and enone 2 provided the corresponding 1,4-γ-adduct, 7. In seven steps, 7 was converted into octahydro-2-methoxy-8,8-dimethylpentalenol[1,6a-c]pyran-5-(6)-one (9) whose conversion into pentalenolactone E methyl ester (1) has been previously reported.
锂化亚磺酰基烯丙基阴离子和烯酮2的立体定向1,4-加成反应提供了相应的1,4-γ-加合物7。在七个步骤中,将7转化为八氢-2-甲氧基-8,8-二甲基戊烯醇[1,6a-c]吡喃-5-(6 )-一(9),其已被转化为戊烯内酯E甲酯(1)。以前的报道。