Patent · US Expired

Preparation of phosphonium salts

US6603045B2 · kind B2 · utility

0Cited by

3References

22Claims

0Family size

Assignee

BASF SE

Inventors

Christoph Wegner · Schifferstadt, DE
Joachim Paust · Schifferstadt, DE
Michael Sasha John · Larchmont, US

Key dates

Filing date	Mar 25, 2002
Grant date	Aug 5, 2003
Priority date	—
Expiry date	Mar 25, 2022

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC07F9/5428
WIPO fieldOrganic fine chemistry
WIPO sectorChemistry

Abstract

Phosphonium salts are prepared by reacting an alkanol with triarylphosphine and sulfonic acids in a solvent.

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