The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 26, 2002
Filed:
Dec. 14, 1999
Applicant:
Inventor:
Alfred Glyn Williams, Binfield, GB;
Assignee:
Syngenta Limited, , GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C 1/708 ; C07C 1/908 ;
U.S. Cl.
CPC ...
C07C 1/708 ; C07C 1/908 ;
Abstract
The present invention provides the novel chlorofluorohydrocarbon 1,1-difluoro-1,4-dichlorobutane, and a process for its preparation comprising reacting 1,1,1,4-tetrachlorobutane or 1,1,4-trichlorobut-1-ene with hydrogen fluoride in the liquid or vapour phase. The product has useful solvent properties and is also useful in synthetic chemistry for the introduction of fluorocarbon functionality.