An NMR Method for Assigning Relative Stereochemistry to β-Hydroxy Ketones Deriving from Aldol Reactions of Methyl Ketones
作者:William R. Roush、Thomas D. Bannister、Michael D. Wendt、Michael S. VanNieuwenhze、Darin J. Gustin、Garrett J. Dilley、Gregory C. Lane、Karl A. Scheidt、William J. Smith
DOI:10.1021/jo0164148
日期:2002.6.1
analysis that permits the stereochemistry of beta-hydroxy ketones to be assigned by visual inspection of the ABX patterns for the alpha-methylene unit of the beta-hydroxy ketone in the 1H NMR spectra. This method has been verified by application to a wide range of beta-hydroxy ketones deriving from aldol reactions of chiral aldehydes with a variety of chiral and achiral methyl ketone enolates (see Tables