Process for preparing bis(hydroxymethyl)perylenetetracarboximide
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United States of America Patent
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Aug 27, 2002
Grant Date -
May 2, 2002
app pub date -
Dec 6, 2001
filing date -
Nov 23, 1998
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The invention is directed to a process for preparing a bis(hydroxymethyl)perylenetetracarboximide compound by reacting perylene-3,4,9,10-tetracarboximide with formaldehyde. The bis(hydroxymethyl)perylenetetracarboximide can be isolated or further reacted in a one pot synthesis to yield a compound of the formula ##STR1## wherein X.sub.1 and X.sub.2 are organic radicals.
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