New chiral auxiliary: Optically active thiol derived from camphor
摘要:
A new camphor based mercapto chiral auxiliary has been prepared, and demonstrated to induce very high chiral inductions in the diastereoselective reductions of alpha-sulfinylketones, in the presence of bivalent Lewis acids.
Preparation of Enantiomerically Enriched (2<i>R</i>,3<i>R</i>)- or (2<i>S</i>,3<i>S</i>)-<i>trans</i>-2,3-Diaryloxiranes <i>via</i> Camphor-Derived Sulfonium Ylides
作者:An-Hu Li、Li-Xin Dai、Xue-Long Hou、Yao-Zeng Huang、Feng-Wei Li
DOI:10.1021/jo951442+
日期:1996.1.1
Easily available D-(+)-camphor-derived sulfides 3, 4, 6, and 7 were employed for enantioselective epoxidation via an ylide route. When benzylated or methylated sulfides were used as reagents or mediators for benzylidene transfer, stoichiometric and catalyticepoxidations were realized, respectively. Opposite asymmetric induction was achieved only when sulfides containing exo- (3 and 4) and endo- (6
A new and highly enantioselective synthetic route to P-chiral phosphines and diphosphines
作者:E. J. Corey、Zhuoliang Chen、Gerald J. Tanoury
DOI:10.1021/ja00076a072
日期:1993.11
Julienne, Karinc; Metzner, Patrick; Henryon, Vivien, Journal of the Chemical Society. Perkin transactions I, 1999, # 6, p. 731 - 735
作者:Julienne, Karinc、Metzner, Patrick、Henryon, Vivien
DOI:——
日期:——
GOODRIDGE, RICHARD J.;HAMBLEY, TREVOR W.;HAYNES, RICHARD K.;RIDLEY, DAMON+, J. ORG. CHEM., 53,(1988) N 13, 2881-2889
作者:GOODRIDGE, RICHARD J.、HAMBLEY, TREVOR W.、HAYNES, RICHARD K.、RIDLEY, DAMON+
DOI:——
日期:——
New chiral auxiliary: Optically active thiol derived from camphor
作者:Shun-Ming Hung、Dong-Sheng Lee、Teng-Kuel Yang
DOI:10.1016/s0957-4166(00)82277-6
日期:1990.1
A new camphor based mercapto chiral auxiliary has been prepared, and demonstrated to induce very high chiral inductions in the diastereoselective reductions of alpha-sulfinylketones, in the presence of bivalent Lewis acids.