The synthesis of chiral decalones, (−)-1,1,4a-trimethyl-2-decalol and (+)-geosmin from S-(+)-carvone (part 3)
作者:Henk J. Swarts、Anja A. Haaksman、Ben J.M. Jansen、Aede de Groot
DOI:10.1016/s0040-4020(01)88303-4
日期:1992.1
The cholesterol biosynthesis inhibitor (−),1,1,4a-trimethyl-2-decalol (4), the chiral decalones 6 and 7, and (+)-geosmin (9 were synthesized from S-(+)-carvone. Annelation of S-(−)-dihydrocarvone followed by methylation gave compound 8 which was used as a key intermediate for the synthesis of decalol 4 and ketone 5. A short isomerisation-ozonation sequence was developed for the removal of the isopropenyl
由S-(+)-香芹酮合成胆固醇生物合成抑制剂(-),1,1,4a-三甲基-2-癸醛(4),手性十碳六烯酮6和7和(+)-土臭素(9)。 ( - - ) - S的dihydrocarvone接着进行甲基化,得到化合物8,其被用作关键中间体用于合成decalol 4和酮5。短异构臭氧化序列被用于除去异丙烯基的开发酮6和(十)十足动物(9)通过羰基转座从十全十(5)中获得7个。(+)-geosmin(9使用Criegee重排除去异丙烯基而合成)。