An Approach to Serrulatane Diterpenes via <i>e</i><i>ndo</i>-Selective Conjugate Nucleophilic Addition to Arene-Cr(CO)<sub>3</sub> Complexes
作者:Florian Dehmel、Johann Lex、Hans-Günther Schmalz
DOI:10.1021/ol026827a
日期:2002.10.1
[formula: see text] Starting from a nonracemic planar-chiral arene tricarbonylchromiumcomplex, the serrulatane diterpenoid (+)-20-methoxy-serrulat-14-en-7,8-diol was synthesized in a highly stereoselective fashion. The key step of the synthesis is an endo-selective conjugate nucleophilicaddition of lithio-methylphenyl sulfone to a 1-ethylidene-tetralin-Cr(CO)3 derivative. By employing different