An asymmetric hydrogen equivalent: use of the 1-naphthylphenylmethylsilyl group in the preparation of optically active allyl alcohols and (S) 1-phenyl-1,2-butadiene.
Enantioselective addition of (Z)- and (E)-alkenylzinc bromides to aldehydes: asymmetric synthesis of sec-allylalcohols
作者:Wolfgang Oppolzer、Rumen N. Radinov
DOI:10.1016/s0040-4039(00)93553-6
日期:1991.10
In situ prepared (Z)- and (E)-1-alkenylzinc bromides 5 were added to various aldehydes 1 in the presence of lithiated (+)-N-methylephedrine or (+)-2-(N,N-dimethylamino)-1,2-diphenylethanol to give sec. allyalcohols 7 in high optical purity with simple recovery of the chiral aminol 6.
An asymmetric hydrogen equivalent: use of the 1-naphthylphenylmethylsilyl group in the preparation of optically active allyl alcohols and (S) 1-phenyl-1,2-butadiene.
作者:Evelyn Torres、Gerald L. Larson、Glenn J. McGarvey