Functionalised bicyclic alcohols by enantioselective α-deprotonation–rearrangement of meso-epoxides†
作者:David M. Hodgson、Iain D. Cameron、Martin Christlieb、Rebecca Green、Gary P. Lee、Lesley A. Robinson
DOI:10.1039/b105369h
日期:——
Enantioselective α-deprotonationârearrangement of achiral substituted cyclooctene oxides 7, 27 and 28 and N-Boc hexahydroazonine oxide 45 using organolithiums in the presence of (â)-sparteine 3 or (â)-α-isosparteine 4 gives the functionalised bicyclo[3.3.0]octan-2-ols 9, 29, and 32 and indolizinol 47 in 50â72% yields and 83â89% ees.