Organic compounds -- part of the class 532-570 series – Organic compounds – Azo
Patent
1998-09-18
1999-10-05
Powers, Fiona T.
Organic compounds -- part of the class 532-570 series
Organic compounds
Azo
548472, C09B 29036, C09B 2909, C07D20944
Patent
active
059626585
ABSTRACT:
Derivatives of (3-oxoisoindolin-1-ylidine)propandinitrile, and a method for preparing the derivatives, are disclosed herein. The (3-oxoisoindolin-1-ylidine)propandinitrile derivatives can be prepared easily and at low cost. Also, the derivatives show good heat resistance at temperatures required for manufacturing an electro-optic device, and can minimize light loss at a near infrared light wavelength range by replacing hydrogen of the C--H bond with halogen atom. As a result, the derivatives of the present invention are useful as an optical material for an electro-optic device. In addition, the (3-oxoisoindolin-1-ylidine)propandinitrile derivatives can be used as an intermediate for synthesizing a new compound having good electro-optic characteristics and heat resistance.
REFERENCES:
patent: 5602074 (1997-02-01), Klintz et al.
Chem. Abs, 67: 73310& Chem. Ber. (1967), 100 (7), 2261-73, J. Krantz, "New Synthesis of 3-substituted Phthalimidines".
Dunn, A., "The Synthesis of Pyrrolopyridines and Pyridopyridazines", J. Heterocycl. Chem., 21(4), 965-8, 1984.
Kranz, J., Chemical Abstracts, 67:73310, 1967.
Choi Hyun-Cheual
Rhee Tae-hyung
Suh Dong-Hack
Bushnell Esq. Robert E.
Powers Fiona T.
Samsung Electronics Co,. Ltd.
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