PROCESS FOR PREPARATION OF 1,2,4-TRIFLUOROBENZENE AND 1-CHLORO-3,4-DIFLUOROBENZENE - Patent 0525019

(19)

(11)

EP 0 525 019 A1

(12)

(43)	Date of publication:
	03.02.1993 Bulletin 1993/05

(21)	Application number: 91907690.0

(22)	Date of filing: 22.03.1991

(51)

International Patent Classification (IPC):

C07D 215/ 56^{( . )}
C07C 17/ 12^{( . )}
C07C 245/ 20^{( . )}

C07C 17/ 093^{( . )}
C07C 25/ 13^{( . )}
C07D 487/ 08^{( . )}

(86)	International application number:
	PCT/US1991/001937

(87)	International publication number:
	WO 1991/016287 (31.10.1991 Gazette 1991/25)

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

(30)

Priority:

12.04.1990 US 19900508372

(71)	Applicant: PFIZER INC.
	New York, N.Y. 10017 (US)

(72)	Inventor:
	BRAISH, Tamim, F. Ledyard, CT 06339 (US)

(74)	Representative: Bradbrook, Geoffrey William, et al
	PFIZER LIMITED Ramsgate Road Sandwich Kent, CT13 9NJ Sandwich Kent, CT13 9NJ (GB)

(54)	PROCESS FOR PREPARATION OF 1,2,4-TRIFLUOROBENZENE AND 1-CHLORO-3,4-DIFLUOROBENZENE