Process for the preparation and purification of 4,4'-dihydroxy-alpha-substituted stilbene
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United States of America Patent
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Feb 23, 1999
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N/A
app pub date -
Apr 25, 1997
filing date -
Apr 25, 1997
priority date (Note) -
Expired
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Abstract
A process which includes the step of heating a compound of Formula (I): ##STR1## wherein R.sup.1 is a hydroxyphenyl group or a group of Formula (II): ##STR2## and R.sup.2, R.sup.3, R.sup.4, R.sup.5 and R.sup.6 are independently in each occurrence H or a C.sub.1-10 alkyl group; to a temperature in the range of from 100.degree. C. to 400.degree. C. under reaction conditions sufficient to form one or more 4,4'-dihydroxy-alpha-substituted stilbenes.
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