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Process for the preparation of 2-hydroxyalkyl halophenones
   
Document Number
US Patent 6362376
Issued Date
March 26, 2002
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Abstract
2-Benzyloxyalkyl halophenones of the formula (3): ##STR1## wherein X.sup.1 and X.sup.2 are each independently H, Cl or F, provided that at least one of X.sup.1 and X.sup.2 is Cl or F; one of R.sup.3 and R.sup.4 is H and the other is optionally substituted benzyloxy; and R.sub.5 is an unsubstituted alkyl, preferably a C.sub.1-6 alkyl group. The compounds are useful as intermediates for preparing 2-hydroxyalkyl halophenones.
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Number of Claims:
5
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Owner
Avecia Limited (Blackley,GB)
Published
March 26, 2002
Application Number
09/923,956
Filed
August 8, 2001
US Classification
568/325   568/327 568/332
Int'l Classification
C07C   49/84   (20060101)   C07C   49/00   (20060101)   C07C   45/56   (20060101)   C07C   45/67   (20060101)   C07C   45/81   (20060101)   C07C   45/00   (20060101)  
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Parent Case
This is a Divisional of National Application Ser. No. 09/673,509 filed Nov. 29, 2000. International Application No. PCT/GB99/01082 filed Apr. 8, 1999 which designated the U.S.
Priority Data
Apr 18, 1998 [GB] 9808447
USPTO Field of Search
568/325   568/327   568/332  
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