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Title:
METHOD FOR PRODUCING 4-SUBSTITUTED OXY-4'-HYDROXYDIPHENYLSULFONE
Document Type and Number:
Japanese Patent JP2008231076
Kind Code:
A
Abstract:

To provide a method for producing a 4-substituted oxy-4'-hydroxydiphenylsulfone, which produces a 4-substituted oxy-4'-hydroxydiphenylsulfone useful as a raw material for a developer of thermosensitive recording material, a sensitizer, etc., under mild conditions in a short time in excellent selectively.

The method for producing a 4-substituted oxy-4'-hydroxydiphenylsulfone represented by general formula [2] (wherein R is a 1-8C alkyl group, a 2-8C alkenyl group or an aralkyl group which may contain a substituent group) comprises reacting 4,4'-dihydroxydiphenylsulfone with a halide represented by general formula [1]: R-X (wherein R is a 1-8C alkyl group, a 2-8C alkenyl group or an aralkyl group which may contain a substituent group, and X is a halogen) in an aqueous solvent in the presence of an alkali that is a mixture of at least two kinds of alkalis and contains 2-65 mol% of potassium hydroxide in the alkali mixture.


Inventors:
Taniguchi, Norihiro
Saito, Hajime
Application Number:
JP2007000076970
Publication Date:
October 02, 2008
Filing Date:
March 23, 2007
Export Citation:
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Assignee:
NICCA CHEMICAL CO LTD
International Classes:
C07C315/04; C07C317/22
Attorney, Agent or Firm:
内山 充