Patent · US Expired

2-aryl-3-(aminoaryl)-3-(hydroxyaryl)phthalimidine compounds and methods for making them

US7348439B2 · kind B2 · utility

5Cited by

2References

7Claims

0Family size

Assignee

General Electric Company · US

Inventors

Balakrishnan Ganesan · Bengaluru, IN
Gurram Kishan · Bengaluru, IN
Pradeep Nadkarni · Bengaluru, IN
Vinod Kumar Rai · Bengaluru, IN
C. Seetharaman · Bengaluru, IN

Key dates

Filing date	Nov 29, 2005
Grant date	Mar 25, 2008
Priority date	—
Expiry date	Nov 29, 2025

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08G73/10
WIPO fieldOrganic fine chemistry
WIPO sectorChemistry

Abstract

Compounds and methods for preparing 2-aryl-3-(aminoaryl)-3-(hydroxyaryl)phthalimidines having a formula of:wherein R1 is 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 Ar1 and Ar2 are 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.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.