Preparation of biphenols by oxidative coupling of alkylphenols using copper catalyst
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United States of America Patent
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Aug 27, 2002
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N/A
app pub date -
Feb 23, 2000
filing date -
Feb 23, 2000
priority date (Note) -
Expired
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Abstract
This invention relates to a method for producing biphenols by oxidative coupling of dialkylphenols which proceeds in two stages using a copper amine complex which is catalytically effective in each stage.
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