Stereochemical Course of Baker's Yeast Mediated Reduction of the Tri- and Tetrasubstituted Double Bonds of Substituted Cinnamaldehydes
作者:Giovanni Fronza、Claudio Fuganti、Stefano Serra
DOI:10.1002/ejoc.200900827
日期:2009.12
A comprehensive study of the stereochemicalcourse of baker'syeast mediated reduction of substituted cinnamaldehydes is reported. Hydride addition to the β position of β-methylcinnamaldehydes preferentially afforded isomers of (3S)-3-phenylbutan-1-ol. The reduction of (E)-2,3-dimethylcinnamaldehyde (15) produced a mixture of (2S,3S)- and (2R,3S)-2-methyl-3-phenylbutan-1-ol (13 and 14), respectively