Double asymmetric hydrogenation of conjugated dienes catalysed by ruthenium binap complexes
作者:Hitoshi Muramatsu、Hiroyuki Kawano、Youichi Ishii、Masahiko Saburi、Yasuzo Uchida
DOI:10.1039/c39890000769
日期:——
Buta-1,3-diene-2,3-dicarboxylic acid is smoothly hydrogenated in the presence of a ruthenium–(R)-binap complex as a catalyst via two consecutive 1,2-hydrogen additions, giving rise to (S,S)-2,3-dimethylsuccinic acid with 98% diastereoisomeric excess and 96% enantiomeric excess.
丁-1,3-二烯-2,3-二羧酸被平稳地在钌(的存在下氢化- [R)-BINAP络合物作为催化剂通过两个连续的1,2-氢的添加,从而产生(小号,小号)-2,3-二甲基琥珀酸,其非对映异构体过量为98%,对映异构体过量为96%。