Synthesis of (3aR,8S,8bS,2′R)-(+)-sorgolactone and its stereoisomers, the germination stimulant from sorghum bicolor
作者:Kenji Mori、Junichi Matsui
DOI:10.1016/s0040-4039(97)10078-8
日期:1997.11
Methyl (S)-citronellate (2) was converted to (3aR,8S,8bS,2′R)-(+)-sorgolactone (1a) by employing the radical cyclization of 6 to 7 as the key-step. Three other stereoisomers (1b, 1c and 1d) of sorgolactone were also prepared. The CD spectrum of 1a was in accord with that reported for the natural product.
甲基(小号)-citronellate(2)转化为(3A - [R,8小号,8B小号,2' - [R sorgolactone( - ) - (+)1A通过采用的自由基环化)6至7的关键步骤。还制备了高粱内酯的其他三种立体异构体(1b,1c和1d)。1a的CD光谱与天然产物的CD光谱一致。