derived alcohols, acetals, and methyl esters after simple (Mg, MeOH) well‐established protocols. Application of the procedure to the synthesis of biologically relevant phenethyl building blocks is shown. Most interestingly, α‐alkylation of initially obtained bis(sulfone) adducts can be done even with less reactive alkylating reagents, such as long linear‐chain or branched‐chain alkyl halides. Accordingly
1,3-Benzodithiole-1,1,3,3-tetraoxide (BDT) as a versatile methylation reagent in catalytic enantioselective Michael addition reaction with enals
作者:Shilei Zhang、Jian Li、Sihan Zhao、Wei Wang
DOI:10.1016/j.tetlet.2010.01.102
日期:2010.3
A protocol of an organocatalytic highly enantioselective conjugate addition of nucleophilic BDT to enals has been developed and the versatile Michael adducts serve as useful building blocks for a variety of organic transformations.