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Process for the purification of 1,3-diketones
   
Document Number
US Patent 6844470
Issued Date
January 18, 2005
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Inventors
Frater; Georg (Winterthur,CH)
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Abstract
A process for the purification of 1,3-diketones comprising reacting a 1,3-diketone with an earth metal or alkaline earth metal complexing agent in an organic solvent, isolating, washing and decomposing the resulting complex, and isolating the purified 1,3-diketone.
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Number of Claims:
20
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Owner
Roche Vitamins Inc. (Parsippany, NJ)
Published
January 18, 2005
Application Number
10/470,893
Filed
August 1, 2003
US Classification
568/324   568/325 568/331 568/338 568/366
Int'l Classification
C07C   45/00   (20060101)   C07C   45/85   (20060101)   C07C   45/45   (20060101)   C07F   5/02   (20060101)   C07F   5/00   (20060101)  
Examiner
Assistant Examiner
Attorney/Law Firm
Priority Data
Feb 02, 2001 [EP] 01102396
USPTO Field of Search
568/324   568/338   568/366   568/325   568/331  
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