Enantioselective Total Synthesis and Absolute Configuration of the Natural Norsesquiterpene 7-Demethyl-2-methoxycalamenene by a Silane-Terminated Intramolecular Heck Reaction
作者:Lutz F. Tietze、Thomas Raschke
DOI:10.1002/jlac.199619961207
日期:1996.12
The totalsynthesis of the norsesquiterpene7-demethyl-2-methoxycalamenene (1) by a newly developed enantioselectivesilane-terminatedHeckreaction is described. The Pd0-catalyzed transformation of the allylsilane 7, obtained from 3-(3-methoxyphenyl)propanol (2) in 7 steps, provides the tetralin 8 in 91% yield and with 92% ee in the presence of (R)-BINAP. Transformation of 8via14and15 gives 1. The