Patent ID: 8378340

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 monohalogenated-methyl group, a sulfonium-methyl group, a phosphonium-methyl group, a phosphonate-methyl group, a cyano methyl group, a formyl group or a vinyl group; Ar 6 and Ar 7 each independently represent a trivalent aromatic hydrocarbon group or a trivalent heterocyclic group, wherein Ar 6 and Ar 7 may have a substituent; A 1 represents —Z 1 —, wherein Z 1 represents O, S, C(═O), S(═O), SO 2 , C(R 1 )(R 2 ), Si(R 3 )(R 4 ), N(R 5 ), B(R 6 ), P(R 7 ) or P(═O) (R 8 ), wherein R 1 , R 2 , R 3 , R 4 , R 5 , R 6 , R 7 and R 8 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 acid imide 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 heteroaryloxy 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, wherein R 1 , R 2 , R 3 and R 4 may be mutually connected to form a ring, and wherein the compound represented by formula (6-1) may have a substituent on the benzene ring in the compound, and substituents may be mutually connected to form a ring.