Patent ID: 7439537

Claim:
A divinylfluorene compound according to formula (II): wherein A 1 to A 10 and R 1 and R 2 are mutually independent substituents selected from the group consisting of hydrogen, alkyl, alkenyl, alkynyl, aryl, heterocyclyl, hydroxy, carboxy, carbalkoxy, halogeno, alkoxy, aryloxy, heterocyclyloxy, alkylthio, arylthio, heterocyclylthio, alkylseleno, arylseleno, heterocyclylseleno, acyl, acyloxy, alkylsulfonyl, aminosulfonyl, acylamino, cyano, nitro, amino and mercapto groups, wherein the heterocyclyl of heterocyclyl, heterocyclyloxy, heterocyclylthio, and heterocyclylseleno is a saturated, unsaturated or aromatic heterocyclyl group and acyl is the residue of an aliphatic, olefinic or aromatic carboxylic, carbaminic, sulfonic, amidosulfonic or phosphonic acid, M 1 is a hydrogen atom or OR 7 , M 2 is a hydrogen atom or OR 8 , and R 3 to R 8 are mutually independent and are a hydrogen atom, alkyl, an alkyl chain containing double or triple bonds, alkenyl, alkynyl, or a non-metallic atom group linked to the oxygen by a carbon atom, wherein the non-metallic atom group is selected from the group consisting of aryl, heterocyclyl, hydroxy, carboxy, carbalkoxy, halogeno, alkoxy, aryloxy, heterocyclyloxy, alkylthio, arylthio, heterocyclylthio, alkylseleno, arylseleno, heterocyclylseleno, acyl, acyloxy, alkylsulfonyl, aminosulfonyl, acylamino, cyano, nitro, amino and mercapto groups, wherein the heterocyclyl of heterocyclyl, heterocyclyloxy, heterocyclylthio, and heterocyclylseleno is a saturated, unsaturated or aromatic heterocycle and acyl is the residue of an aliphatic, olefinic or aromatic carboxylic, carbaminic, sulfonic, amidosulfonic or phosphonic acid, and wherein one or more pairs of said substituents may jointly form a ring.