2-aryl-3-(aminoaryl)-3-(hydroxyaryl)phthalimidine compounds...

Organic compounds -- part of the class 532-570 series – Organic compounds – Heterocyclic carbon compounds containing a hetero ring...

Reexamination Certificate

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C548S484000

Reexamination Certificate

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11289250

ABSTRACT:
Compounds and methods for preparing 2-aryl-3-(aminoaryl)-3-(hydroxyaryl)phthalimidines having a formula of:wherein R1is independently selected from a group consisting of a hydrocarbyl radical, a nitro radical, and a halogen atom; “a” is an integer from 0–4; and Ar1and Ar2are each independently an aromatic radical, are disclosed. The 2-aryl-3-(aminoaryl)-3-(hydroxyaryl)phthalimidine compounds are useful for preparing other useful monomers and polymers.

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