ASYMMETRIC HYDROGENATIONS OF<i>N</i>-PYRUVOYL-(<i>S</i>)-AMINO ACID ESTERS BY USING SODIUM BOROHYDRIDE. A SOLVENT EFFECT
作者:Toratane Munegumi、Kaoru Harada
DOI:10.1246/cl.1983.1225
日期:1983.8.5
N-Pyruvoyl-(S)-amino acid isobutyl esters were hydrogenated with sodiumborohydride(NBH) in several alcoholic solvents, and N-[(R)-lactoyl]-(S)-amino acid esters were obtained with diastereoisomeric purity of up to 44%. Significant solventeffect on the diastereoisomeric purity of the product was observed.