Sulfinyl Group as an Intramolecular Nucleophile: Synthesis of Bromohydrins from β-Methyl-γ,δ-unsaturated Sulfoxides with High 1,2-Asymmetric Induction
作者:Sadagopan Raghavan、S. Ramakrishna Reddy、K. A. Tony、Ch. Naveen Kumar、Ashok K. Varma、Ashwini Nangia
DOI:10.1021/jo015921m
日期:2002.8.1
Bromohydrins have been prepared from beta-methyl-gamma,delta-unsaturated sulfoxides with high regio- and stereoselectivity. The reaction proceeds via neighboring group participation of the sulfinyl moiety with inversion of sulfoxide configuration as proven by an (18)O labeling study and X-ray crystallography.
溴代醇是由具有高区域和立体选择性的β-甲基-γ,δ-不饱和亚砜制备的。如(18)O标记研究和X射线晶体学所证明的,反应通过亚磺酰基部分的相邻基团参与和亚砜构型的转化而进行。