Patent · US Expired

Process for reacting alcohols and/or phenols with phosphorus pentasulfide

US4397791A · kind A · utility

5Cited by
1References
2Claims
0Family size

Assignee

Inventors

Key dates

Filing dateMar 13, 1981
Grant dateAug 9, 1983
Priority date
Expiry dateMar 13, 2001

Classification

  • Technology area (CPC C)Chemistry; Metallurgy
  • CPC primaryC07F9/18
  • WIPO fieldOrganic fine chemistry
  • WIPO sectorChemistry

Abstract

The invention relates to a process wherein an alcohol and/or phenol is reacted with phosphorus pentasulfide in the presence of a catalyst which is selected from PA0 (a) phosphonium salts of the general formula: ##STR1## (b) ammonium salts of the general formula: ##STR2## (c) phosphine oxides of the general formula: ##STR3## (d) phosphine sulfides of the general formula: ##STR4## (e) phosphinic acid derivatives of the general formula: ##STR5## In formulae I through V, the substituents R.sub.1, R.sub.2, R.sub.3 and R.sub.4 each stand for identical or different alkyl-, aryl-, alkaryl- or aralkyl- groups having from 1 to 22 carbon atoms. A stands for an inorganic or organic acid, and X and Y, respectively, stand for both oxygen and sulfur, and M stands for a monovalent metal or oxygen.

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