Patent · US Expired

Method for producing cyanovaleric acid or esters thereof

US6346640B1 · kind B1 · utility

6Cited by

6References

7Claims

0Family size

Assignee

BASF SE

Inventors

Michael Slany · Tauberbischofsheim, DE
Martin Schäfer · Arnstadt, DE
Michael Schulz · Ludwigshafen, DE

Key dates

Filing date	Feb 26, 2001
Grant date	Feb 12, 2002
Priority date	—
Expiry date	Feb 26, 2021

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC07F15/0053
WIPO fieldOrganic fine chemistry
WIPO sectorChemistry

Abstract

The process comprises reacting 2-, 3- or 4-pentenenitrile or mixtures thereof with carbon monoxide and a hydroxyl compound in the presence of a catalyst system comprising (i) a palladium(II) compound, (ii) a bidentate diphosphine ligand and (iii) an anion source. Novel catalyst systems containing diphosphine ligands of the bis(phosphinomethyl)amine type are also described.

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