Gravel,D. et al., Canadian Journal of Chemistry, 1977, vol. 55, p. 2373 - 2384
作者:Gravel,D. et al.
DOI:——
日期:——
Asymmetric 1,4-Hydrosilylations of α,β-Unsaturated Esters
作者:Bruce H. Lipshutz、Jeff M. Servesko、Benjamin R. Taft
DOI:10.1021/ja049135l
日期:2004.7.14
Complexing catalytic amounts of CuH with a nonracemic JOSIPHOS or SEGPHOS ligand, together with stoichiometric PMHS, leads to exceedingly efficient and highly enantioselective 1,4-reductions of beta,beta-disubstituted enoates and lactones. An unprecedented substrate-to-ligand ratio of 7700:1 for this type of reaction is documented.
GRAVEL, D.;LEBOEUF, CH., CAN. J. CHEM., 1982, 60, N 5, 574-587