SYNTHESIS OF ALDONOLACTONES, ALDAROLACTONES, AND ALDARODILACTONES USING AZEOTROPHIC DISTILLATION - Patent 1773839

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EP 1 773 839 A1

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(43)	Date of publication:
	18.04.2007 Bulletin 2007/16

(21)	Application number: 05787937.1

(22)	Date of filing: 30.06.2005

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International Patent Classification (IPC):

C07D 493/04^(2006.01)

C07D 307/32^(2006.01)

(86)	International application number:
	PCT/US2005/023816

(87)	International publication number:
	WO 2006/005071 (12.01.2006 Gazette 2006/02)

(84)	Designated Contracting States:
	DE FR GB

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Priority:

30.06.2004 US 584835 P
30.06.2004 US 584832 P

(71)	Applicant: E.I. DUPONT DE NEMOURS AND COMPANY
	Wilmington, Delaware 19898 (US)

(72)	Inventor:
	CHENAULT, H. Keith Hockessin, Delaware 19707 (US)

(74)	Representative: Matthews, Derek Peter
	Frank B. Dehn & Co. St Bride's House 10 Salisbury Square London EC4Y 8JD London EC4Y 8JD (GB)

(54)	SYNTHESIS OF ALDONOLACTONES, ALDAROLACTONES, AND ALDARODILACTONES USING AZEOTROPHIC DISTILLATION