Process for producing 4,6-diaminoresorcinols
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United States of America Patent
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Apr 6, 1999
Grant Date -
N/A
app pub date -
Oct 8, 1997
filing date -
Oct 9, 1996
priority date (Note) -
Expired
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Abstract
A process for producing 4,6-diaminoresorcinols comprises the steps of: subjecting a dioxime of the formula (4) ##STR1## wherein R is an alkyl or phenyl group, to Beckmann rearrangement to thereby produce 4,6-diacylaminoresorcinol of the formula (5) ##STR2## wherein R is as defined above, and subjecting the 4,6-diacylaminoresorcinol to hydrolysis and recovering the product 4,6-diaminoresorcinol (6) ##STR3## or a salt thereof.
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