PROCESS FOR THE PREPARATION OF 4-BROMO-1,1-DIFLUOROBUT-1-ENE AND 2,4-DIBROMO-1,1,1-TRIFLUOROBUTANE - Patent 0850211

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EP 0 850 211 A1

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(43)	Date of publication:
	01.07.1998 Bulletin 1998/27

(21)	Application number: 96928560.0

(22)	Date of filing: 23.08.1996

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International Patent Classification (IPC):

C07C 17/ 093^{( . )}
C07C 19/ 14^{( . )}
C07C 29/ 143^{( . )}
C07C 303/ 28^{( . )}

C07C 17/ 23^{( . )}
C07C 21/ 18^{( . )}
C07C 29/ 147^{( . )}
C07C 309/ 73^{( . )}

(86)	International application number:
	PCT/GB1996/002072

(87)	International publication number:
	WO 1997/009292 (13.03.1997 Gazette 1997/12)

(84)	Designated Contracting States:
	AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

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Priority:

06.09.1995 GB 19950018111

(71)	Applicant: ZENECA LIMITED
	London W1Y 6LN (GB)

(72)	Inventor:
	WILLIAMS, Alfred, Glyn Berkshire RG12 5ES (GB)

(74)	Representative: Bishop, Nigel Douglas
	Intellectual Property Department, ZENECA Agrochemicals, Jealotts Hill Research Station, P.O. Box 3538 Bracknell, Berkshire RG42 6YA Bracknell, Berkshire RG42 6YA (GB)

(54)	PROCESS FOR THE PREPARATION OF 4-BROMO-1,1-DIFLUOROBUT-1-ENE AND 2,4-DIBROMO-1,1,1-TRIFLUOROBUTANE