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Highly Rigid Diphosphane Ligands with a Large Dihedral Angle Based on a Chiral Spirobifluorene Backbone
Author(s) -
Cheng Xu,
Zhang Qi,
Xie JianHua,
Wang LiXin,
Zhou QiLin
Publication year - 2005
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.200462072
Subject(s) - dihedral angle , ruthenium , reactivity (psychology) , chemistry , rigidity (electromagnetism) , polymer chemistry , catalysis , materials science , organic chemistry , molecule , composite material , medicine , hydrogen bond , alternative medicine , pathology
High and wide : The high rigidity and large dihedral angle of chiral, spirobifluorene‐based diphosphane ligands lead to excellent reactivity and enantioselectivity in the ruthenium‐catalyzed asymmetric hydrogenation of α,β‐unsaturated carboxylic acids (see scheme).