Patent ID: 8236968
Filing Date: 2012-08-07
Classification: C07D

Abstract:
1. A compound of formula (I) wherein R R is, identically or differently on each occurrence, H; halogen; a straight-chain, branched or cyclic alkyl chain having 1 to 22 C atoms wherein one or more non-adjacent C atoms are optionally replaced by —O—, —S—, —CO—, —CO—O—, —O—CO—, or —O—CO—O—, and one or more H atoms are optionally replaced by fluorine; and an aryl, aryloxy, heteroaryl or heteroaryloxy group having 5 to 40 C atoms optionally substituted by one or more of non-aromatic radicals R X L is, identically or differently on each occurrence, F, Cl, Br, I, —CN, —NO Sp is, identically or differently on each occurrence, selected from the formula Sp′-X′, so that X Sp′ is an alkylene having 1 to 20 C atoms optionally mono- or polysubstituted by F, Cl, Br, I, or CN and wherein one or more non-adjacent CH X′ is —O—, —S—, —CO—, —COO—, —OCO—, —O—COO—, —CO—NR R Y wherein at least one of the radicals R 1 , R 2 , R 3 , and R 4 is an optionally substituted aryl or heteroaryl group.