Patent · US Expired

Process for the preparation of ruthenium complexes and their in situ use as hydrogenation catalysts

US5559262A · kind A · utility

12Cited by

7References

8Claims

0Family size

Assignee

E.I. DU PONT DE NEMOURS AND COMPANY · US

Inventors

Richard P. Beatty · Newark, US
Rocco Paciello · Bad Dürkheim, DE

Key dates

Filing date	Jan 31, 1995
Grant date	Sep 24, 1996
Priority date	—
Expiry date	Jan 31, 2015

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC07C2601/18
WIPO fieldOrganic fine chemistry
WIPO sectorChemistry

Abstract

This invention relates to a process of preparing a ruthenium complex of the formula RuH.sub.2 (PR.sub.3).sub.2 L.sub.2 wherein PR.sub.3 is an organophosphoms ligand and L is H.sub.2 or PR.sub.3 ; a catalyst comprising at least one ruthenium complex having the formula RuH.sub.2 (PR.sub.3)L.sup.1.sub.3 wherein L.sup.1 is a neutral electron pair donor ligand; a process for preparing the catalyst and its use in situ in the hydrogenation of nitriles.

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