PREPARATION OF SUBSTITUTED OR UNSUBSTITUTED PHENYLGLYOXALS - Patent 0632797

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EP 0 632 797 A1

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(43)	Date of publication:
	11.01.1995 Bulletin 1995/02

(21)	Application number: 93905964.0

(22)	Date of filing: 16.02.1993

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International Patent Classification (IPC):

C07C 45/ 28^{( . )}
C07C 45/ 42^{( . )}
C07C 49/ 76^{( . )}
C07C 49/ 825^{( . )}
C07C 49/ 86^{( . )}
C07C 59/ 88^{( . )}

C07C 45/ 30^{( . )}
C07C 45/ 51^{( . )}
C07C 49/ 80^{( . )}
C07C 49/ 84^{( . )}
C07C 51/ 58^{( . )}
C07C 309/ 44^{( . )}

(86)	International application number:
	PCT/US1993/001348

(87)	International publication number:
	WO 1993/017989 (16.09.1993 Gazette 1993/22)

(84)	Designated Contracting States:
	BE DE FR GB IT NL

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Priority:

13.03.1992 US 19920850626

(71)	Applicant: HOECHST CELANESE CORPORATION
	Summit, NJ 07901 (US)

(72)	Inventors:
	MOTT, Graham, N. Corpus Christi, TX 78413 (US) DURRWACHTER, John, R. Corpus Christi, TX 78410 (US) TAFESH, Ahmed Corpus Christi, TX 78413 (US)

(74)	Representative: von Kreisler, Alek, Dipl.-Chem., et al
	Patentanwälte von Kreisler-Selting-Werner Postfach 10 22 41 D-50462 Köln D-50462 Köln (DE)

(54)	PREPARATION OF SUBSTITUTED OR UNSUBSTITUTED PHENYLGLYOXALS