Dehmlow, Eckehard V.; Sauerbier, Christiane, Liebigs Annalen der Chemie, 1989, p. 181 - 186
作者:Dehmlow, Eckehard V.、Sauerbier, Christiane
DOI:——
日期:——
DEHMLOW, ECKEHARD V.;SAUERBIER, CHRISTIANE, LIEBIGS ANN. CHEM.,(1989) N, C. 181-185
作者:DEHMLOW, ECKEHARD V.、SAUERBIER, CHRISTIANE
DOI:——
日期:——
Asymmetric epoxidation of α,β-unsaturated ketones under phase-transfer catalyzed conditions
作者:Shigeru Arai、Hiroki Tsuge、Takayuki Shioiri
DOI:10.1016/s0040-4039(98)01646-3
日期:1998.10
Asymmetricepoxidation of a,b-unsaturated ketones with H2O2 was developed using a chiral quaternary ammonium salt as the phase-transfer catalyst. A catalytic amount of N-[4-(iodo)benzyl]cinchoninium bromide, easily prepared from cinchonine, was effective in the asymmetricepoxidation for producing the corresponding desired products with up to 92% ee under mild reaction conditions.
使用手性季铵盐作为相转移催化剂,开发了H 2 O 2对a,b-不饱和酮的不对称环氧化。容易由辛可宁制备的催化量的N- [4-(碘)苄基]辛基溴化铵在不对称环氧化中有效,可在温和的反应条件下生产相应的所需产物,其ee最高为92%。