Patent · US Expired

Preparation of phosphonium salts

US6433226B1 · kind B1 · utility

0Cited by

3References

2Claims

0Family size

Assignee

BASF SE

Inventors

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

Key dates

Filing date	Oct 23, 2000
Grant date	Aug 13, 2002
Priority date	—
Expiry date	Oct 23, 2020

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.