Chiral phosphorus ligands

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United States of America Patent

PATENT NO 8552212
APP PUB NO 20120277455A1
SERIAL NO

13504146

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Abstract

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The invention relates to a series of novel chiral phosphorus ligands of formulae (Ia) and (Ib): wherein R, 1-rR>4 and X are as defined herein. The invention also relates to chiral metal complexes prepared with these chiral phosphorus ligands. The chiral metal complexes are useful as catalysts for carrying out asymmetric hydro genation.

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Patent Owner(s)

  • BOEHRINGER INGELHEIM INTERNATIONAL GMBH

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Qu, Bo Brookfield, US 64 389
Senanayake, Chris Hugh Brookfield, US 61 551
Tang, Wenjun Shanghai, CN 23 242
Wei, Xudong Ridgefield, US 29 332
Yee, Nathan K Danbury, US 33 350

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