Patent · US Expired

Method for the preparation of 1,1,1,3,3-pentachlorobutane

US6399840B1 · kind B1 · utility

5Cited by

8References

14Claims

0Family size

Assignee

SOLVAY (Société Anonyme) · BE

Inventors

Jean-Paul Schoebrechts · Grez-Doiceau, BE
Veronique Mathieu · Wavre, BE
Francine Janssens · Vilvoorde, BE

Key dates

Filing date	Dec 30, 1999
Grant date	Jun 4, 2002
Priority date	—
Expiry date	Dec 30, 2019

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC07C17/275
WIPO fieldOrganic fine chemistry
WIPO sectorChemistry

Abstract

1,1,1,3,3-pentachlorobutane is obtained by reacting carbon tetrachloride with 2-chloro-1-propene in the presence of at least one copper (I) or (II) compound as telomerization catalyst. Advantageously, a polar compound can be present in the reaction mixture as solvent, and an amine, an amide or a trialkylphosphine oxide can be present as cocatalyst.

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