Patent ID: 9273002
Filing Date: 2016-03-01
CPC Classification: C07D,C09K,H01L,H05B

Claim Text:
1. A benzo[k]fluoranthene derivative of formula (1): wherein: R provided that at least one of R wherein L is a single bond, a divalent to tetravalent residue of an optionally substituted aromatic hydrocarbon ring selected from benzene, naphthalene, biphenyl, pyrene, phenanthrene, chrysene, p-terphenyl, m-terphenyl, and 9,9-dimethylfluorene, a divalent to tetravalent residue of an optionally substituted heterocyclic ring comprising 5 to 30 ring atoms, or a divalent to tetravalent residue of a ring formed by bonding 2 to 3 rings selected from the aromatic hydrocarbon ring and the heterocyclic ring via a single bond; n is an integer from 1 to 3; and HAr is a nitrogen comprising heterocyclic ring selected from the group consisting of formulae (3) to ( wherein: R in the formula (3), two or more of R in the formula (4), two or more of R in the formula (5), two or more of R in the formula (6), two or more of R in the formula (7), two or more of R and wherein when a groups substituted the substituted (s) is/are independently selected from a halogen atom, a substituted or unsubstituted alkyl group having 1 to 10 carbon atoms, substituted or unsubstituted, substituted cycloalkyl group having 3 to 8 ring carbon atoms, a substituted or unsubstituted, substituted silyl group having 3 to 30 carbon atoms,a cyano group, substituted or unsubstituted alkoxy group having 1 to 20 carbon atoms, a substituted or unsubstituted aryloxy group having 6 to 20 ring carbon atoms, a substituted or unsubstituted alkylthio group having 1 to 20 carbon atoms, substituted or unsubstituted mono- or dialkylamino group having 1 to 20 carbon atoms, a substituted or unsubstituted aryl group having 6 to 30 ring carbon atoms, and a substituted or unsubstituted heterocyclic group having 5 to 30 ring atoms.