Homogeneous Asymmetric Hydrogenation Using a Chiral Phosphinite Derivative of Carbohydrates as Ligand
作者:Mitsuji Yamashita、Mineaki Kobayashi、Motoyuki Sugiura、Kenji Tsunekawa、Tatsuo Oshikawa、Saburo Inokawa、Hiroshi Yamamoto
DOI:10.1246/bcsj.59.175
日期:1986.1
synthesized by the reaction of diphenylphosphinous chloride–triethylamine with sugar derivatives. Homogeneous asymmetric hydrogenations of several prochiral olefins, i.e., (Z)-α-acetylaminocinnamic acid, (Z)-α-benzoylaminocinnamic acid, itaconic acid, tiglic acid, and their esters, were carried out using rhodium(I) catalysts with the tervalent chiral phosphorus derivative of sugars. The highest optical
通过二苯基氯化亚膦三乙胺与糖衍生物的反应,可以方便地合成糖的二苯基次膦酸盐衍生物。几种前手性烯烃,即 (Z)-α-乙酰氨基肉桂酸、(Z)-α-苯甲酰氨基肉桂酸、衣康酸、tiglic acid 及其酯的均相不对称氢化反应是使用具有三价的铑 (I) 催化剂进行的。糖的手性磷衍生物。当二-μ-氯-双(环辛二烯)二铑(I)和甲基2,3-O-异亚丙基-4-O-(二苯基膦)-α-L-鼠李糖苷时,所有研究的前手性底物的光学产率最高被使用。