Differentiation and assigment of the proton NMR signals in the bis-MTPA ester of meso-α,α'-dimethyl-1,4-benzenedimethanol

Article abstract of DOI:10.1016/0957-4166(96)00378-3

NaBH₄ reduction of one ketone in 1,4-diacetylbenzene followed by Amano PS catalyzed acylation of the R enantiomer, separation of the R acetate from the S alcohol, and reduction of the remaining ketone in each with NaBD₄, has provided