STUDIES ON THE DIASTEREO- SELECTIVE REDUCTION OF 2-ACETYL-2-ALKYL- γ-BUTYROLACTONES WITH BORON HYDRIDES*
作者:Lis H. P. Teixeira、Maria Cecília B. V. de Souza、Maria da Conceição K. V. Ramos、Francisco R. de Aquino Neto、Eliezer J. Barreiro、Carlos A. M. Fraga
DOI:10.1081/scc-120002396
日期:2002.1.1
Reduction of 2-acetyl-2-alkyl-gamma-butyrolactone derivatives with boron hydrides in the presence and absence of several chelating agents were studied. This process is influenced more by steric than chelation factors, yielding the isomeric alcohols syn (13-23) and anti (14-24) in good diastereomeric excess.