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Synthesis of 2,3,5-trisubstituted-2-cyclopentenones via base induced cyclization of alpha-chloro unsaturated ketones
   
Document Number
US Patent 5026918
Issued Date
June 25, 1991
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Abstract
2,3,5-trisubstituted-2-cyclopentenones or 2,3-disubstituted-2-cyclopentenones (such as cis-jasmone) are prepared by contacting a 3-chloro-3,4-disubstituted-4-pentene-2-one with a strong base. Methods of preparing the reactants are also disclosed.
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Number of Claims:
21
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Owner
Petrolite Corporation (St. Louis, MO)
Published
June 25, 1991
Application Number
07/515,299
Filed
April 27, 1990
US Classification
568/348   568/316
Int'l Classification
C07C   45/00   (20060101)   C07C   45/67   (20060101)   C07C   45/65   (20060101)   C07C   45/45   (20060101)   C07C   45/68   (20060101)   C07C   45/66   (20060101)   C07C   45/63   (20060101)  
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USPTO Field of Search
568/348   568/316  
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