Patent · US Active

Ruthenium complexes having hybrid amine ligands, their preparation and use

US8563739B2 · kind B2 · utility

1Cited by

0References

15Claims

0Family size

Assignees

Enantiotech Corporation Limited · CN
SHANGHAI INSTITUTE OF ORGANIC CHEMISTRY, CHINESE ACADEMY OF SCIENCES · CN

Inventors

Christian A. Sandoval · Shanghai, CN
Yue Li · Qingdao, CN

Key dates

Filing date	Jun 12, 2009
Grant date	Oct 22, 2013
Priority date	—
Expiry date	Nov 8, 2029

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB01J2531/821
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

The invention relates to a novel class of ruthenium complexes containing phosphine and hybrid amine ligands, their preparation and use as catalysts in the reduction of simple ketones to alcohols by molecular hydrogenation. The reactivity and enantioselectivity of such complexes in the asymmetric hydrogenation of simple ketones could be enhanced by the addition of some selective additives.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.