Patent ID: 7842941

Claim:
An aromatic compound of the following formula (6-1): wherein X 9 , X 10 , X 11 and X 12 each independently represent a halogen atom, an alkylsulfonate group, an arylsulfonate group, an arylalkylsulfonate group, a boric ester group, —B(OH) 2 , a methyl monohalide group, a sulfonium methyl group, a phosphonium methyl group, a phosphonate methyl group, a cyanomethyl group, a formyl group, or a vinyl group; Ar 6 and Ar 7 each independently represent a tri-valent aromatic hydrocarbon group or a tri-valent heterocyclic group, Ar 6 and Ar 7 may have a substitutent; A 1 represents O—C(═O), O—C(R 1 )(R 2 ), N(R 5 )—C(═O), or N═C(R 9 ) (wherein R 1 , R 2 , R 5 and R 9 each independently represent a hydrogen atom, a halogen atom, an alkyl group, an alkyloxy group, an alkylthio group, an aryl group, an aryloxy group, an arylthio group, an arylalkyl group, an arylalkyloxy group, an arylalkylthio group, an acyl group, an acyloxy group, an amide group, an acidimide group, an imine residue, an amino group, a substituted amino group, a substituted silyl group, a substituted silyloxy group, a substituted silylthio group, a substituted silylamino group, a mono-valent heterocyclic group, a hetetoaryloxy group, a heteroarylthio group, an arylalkenyl group, an arylethynyl group, a carboxyl group, an alkyloxycarbonyl group, an aryloxycarbonyl group, an arylalkyloxycarbonyl group, a heteroaryloxycarbonyl group or a cyano group, R 1 , R 2 , R 3 and R 4 may be mutually connected to form a ring), and the compound represented by formula (6-1) may have substituents on the benzene ring in the compound, and the substituents may be connected mutually to form a ring.