Patent ID: 6393190
Filing Date: 2002-05-21
Classification: C07D,G02B,G02F,Y10T

Abstract:
A compound having Formula Iâ€²: where:R2 and R3 define a ring in which * denotes a spiro junction, or where * denotes a chiral center; wherein: D is an electron donating group; B is or contains at least one bivalent aromatic ring; and R2 and R3 each, independently, are either substituted or unsubstituted C1-C10 alkyl, substituted or unsubstituted C2-C10 alkenyl, substituted or unsubstituted C2-C10 alkynyl, substituted or unsubstituted aryl, substituted or unsubstituted alkylaryl, substituted or unsubstituted carbocyclic, substituted or unsubstituted heterocyclic, substituted or unsubstituted cyclohexyl, or (CH2)nâ€”Oâ€”(CH2)n, where n is 1-10.