Preparation and Reactions of 2,2-Dimethyl-1,3-dioxan-5-one-SAMP-Hydrazone: A Versatile Chiral Dihydroxyacetone Equivalent
作者:Dieter Enders、Matthias Voith、Stuart J. Ince
DOI:10.1055/s-2002-33646
日期:——
The SAMP-hydrazone of 2,2-dimethyl-1,3-dioxan-5-one represents a valuable chiral dihydroxyacetone equivalent. Asymmetric mono- or α,α′-bisalkylations followed by auxiliary cleavage leads to the corresponding mono- or α,α′-disubstituted, acetonide protected ketodiols in excellent diastereo- and enantiomeric excesses.
2,2-二甲基-1,3-二恶烷-5-酮的SAMP-脒代表了有价值的手性二羟基丙酮等效物。通过不对称单烷基化或α,α'-双烷基化,随后辅助断裂,可以高对映选择性和立体选择性地得到相应的单或α,α'-双取代、乙缩醛保护的酮二醇。