Relative and Absolute Configuration of the 3,12-Dihydroxypalmitic Acids
作者:Barbara Jakob、Hans Gerlach
DOI:10.1002/jlac.199619961226
日期:1996.12
The relative and absoluteconfiguration of (+)-3,12-dihydroxypalmitic acid, a constituent of the Ipomea operculata M. resin, has been determined by synthesis. Dimethyl L-malate was converted via (S)-(+)-1 into the oxirane (S)-(-)-2. Reaction of (-)-2 with the Grignard reagent of 8-benzyloxybromooctane provided (S)-(+)-3 in 84% yield, and this was converted into the aldehyde (S)-(-)-6 via (S)-(-)-4