Enantiomerically pure 1,2,5-triphenylphospholane through the synthesis and resolution of the chiral trans-(2,5)-diphenylphospholanic acid
作者:Frédéric Guillen、Jean-Claude Fiaud
DOI:10.1016/s0040-4039(99)00329-9
日期:1999.4
The synthesis and resolution of trans-(2,5)-diphenylphospholanic acid 7 is described. The phosphinic acid 7 was converted into optically active (1,2,5)-triphenylphospholane 5 which was used as a chiral ligand in Rh-catalyzed hydrogenation of N-acetyl dehydrophenylalanine methyl ester to give quantitative yield of methyl N-acetylphenylalaninate with 82 % e.e.
描述了反式-(2,5)-二苯基膦酸7的合成和拆分。次膦酸7转化为旋光性(1,2,5)-三苯基膦环烷5,在Rh催化N-乙酰基脱氢苯基丙氨酸甲酯加氢反应中用作手性配体,定量得到N-乙酰基苯丙氨酸甲酯的产率为82% ee