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Tetrahedron

Synthesis of atropisomeric 5, 5′-linked biphenyl bisaminophosphine ligands and their applications in asymmetric catalysis

YJ Zhang, H Wei, W Zhang

文献索引:Zhang, Yong Jian; Wei, Hao; Zhang, Wanbin Tetrahedron, 2009 , vol. 65, # 7 p. 1281 - 1286

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被引用次数: 14

摘要

Atropisomeric 5, 5′-linked biphenyl bisaminophosphine ligands 2 has been synthesized. The axial chirality of this type of ligands can be retained by macro-ring strain produced from 5, 5′-linkage of biphenyl even without 6, 6′-substituents on biphenyls. The Rh complex of bisaminophosphine 2a as a catalyst is effectively working in the asymmetric hydrogenation of methyl (Z)-2-acetamido-3-arylacrylates, however, for hydrogenation of arylenamide, the ...