Patent · US Expired

Chiral bisphosphines

US6043387A · kind A · utility

2Cited by

4References

11Claims

0Family size

Assignee

MERCK & CO., INC. · US

Inventors

Philip Pye · Guttenberg, US
Ralph P. Volante · Rahway, US
Kai Rossen · Hanau, DE

Key dates

Filing date	Feb 3, 1999
Grant date	Mar 28, 2000
Priority date	—
Expiry date	Feb 3, 2019

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC07F9/65539
WIPO fieldOrganic fine chemistry
WIPO sectorChemistry

Abstract

New chiral biphosphines, e.g., ##STR1## are useful as key components in catalysts for asymmetric reactions, providing desirably high enantiomeric excess (ee).

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