Method of making 4-hydroxy-4'-benzyloxydiphenyl sulfone
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United States of America Patent
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Apr 4, 2000
Grant Date -
N/A
app pub date -
May 20, 1998
filing date -
Dec 24, 1997
priority date (Note) -
Expired
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Abstract
The present invention provides a method of making 4-hydroxy-4'-benzyloxydiphenyl sulfone. The manufacturing method of the present invention is characterized in that an aqueous solvent containing an appropriate amount of a lower alcohol is used as a reaction solvent between 4,4'-dihydroxyphenyl sulfone and a benzyl halide.
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