Enantioselective total syntheses of the novel tricyclic sesquiterpene hydrocarbons (+)- and (−)-kelsoene. Absolute configuration of the natural product
作者:Goverdhan Mehta、K Srinivas
DOI:10.1016/s0040-4039(01)00288-x
日期:2001.4
lipase-catalysed kinetic resolution of endo,endo–cis-bicyclo[3.3.0]octane-2,6-diol rac-3 has provided ready access to bicyclo[3.3.0]octane-2,6-diones (−)-2 and (+)-2 of high enantiomeric purity. These C2-symmetric diones have been further elaborated to the sesquiterpene hydrocarbon (+)-kelsoene 1 and ent-kelsoene (−)-1, respectively, thereby establishing the absoluteconfiguration of the natural product
作者:Sonja Fietz-Razavian、Stefan Schulz、Ina Dix、Peter G. Jones
DOI:10.1039/b101579f
日期:2001.10.11
The absoluteconfiguration of the recently identified sesquiterpene (+)-kelsoene was revised by chemical correlation with (R)-(+)-pulegone; the correct structure is (1R,2S,5R,6R,7R,8S)-2,8-dimethyl-6-(1-methylethenyl)tricyclo[5.3.0.0 (2,5)]decane.