中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
—— | (rel-4aS,5R)-4a,5-dimethyl-4,4a5,6,7,8-hexahydronaphthalen-2(3H)-one | 43209-93-4 | C12H18O | 178.274 |
An efficient annelation of 2,3-dimethylcyclohexanone is described. The key step of this process involves the reaction of the enol lactone 16 with methyllithium, under carefully controlled conditions. The completely stereoselective conversion of the sesquiterpene (−)-aristolone (1) into the levorotatory decalone 22b is described. Comparison of the latter with the unambiguously synthesized racemic decalone 22a conclusively establishes the relative stereochemistry of aristolone (1).