Patent · US Expired

Process for the manufacture of dimethyl-tin dichloride

US4052426A · kind A · utility

6Cited by

3References

8Claims

0Family size

Assignee

Ciba-Geigy · US

Inventors

Wolfgang Wehner · Ober-Ramstadt, DE
Rudolf Maul
Hans Jung · Ludwigshafen, DE

Key dates

Filing date	Feb 20, 1976
Grant date	Oct 4, 1977
Priority date	—
Expiry date	Feb 20, 1996

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC07F9/02
WIPO fieldOrganic fine chemistry
WIPO sectorChemistry

Abstract

Complexes composed of alkylphosphines or of alkylphosphonium chlorides and tin tetrachloride are good catalysts for the preparation of dimethyl-tin dichloride from tin and methyl chloride in the presence of sulphones and carbonates as solvents.

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