Patent ID: 11950507
Assignee: BEIJING SUMMER SPROUT TECHNOLOGY CO., LTD.
Field: nan (nan)
Classification: CPC H  Y | IPC H

Claim 7:
8. The organic electroluminescence device according to claim 1, wherein R is, at each occurrence identically or differently, selected from a group consisting of: hydrogen, deuterium, halogen, a nitroso group, a nitro group, an acyl group, a carbonyl group, a carboxylic acid group, an ester group, a cyano group, an isocyano group, SCN, OCN, SF5, a boryl group, a sulfinyl group, a sulfonyl group, a phosphoroso group, an unsubstituted alkyl group having 1 to 20 carbon atoms, an unsubstituted cycloalkyl group having 3 to 20 ring carbon atoms, an unsubstituted alkoxy group having 1 to 20 carbon atoms, an unsubstituted alkenyl group having 2 to 20 carbon atoms, an unsubstituted aryl group having 6 to 30 carbon atoms, an unsubstituted heteroaryl group having 3 to 30 carbon atoms, and any one of the following groups substituted by one or more of halogen, a nitroso group, a nitro group, an acyl group, a carbonyl group, a carboxylic acid group, an ester group, a cyano group, an isocyano group, SCN, OCN, SF5, a boryl group, a sulfinyl group, a sulfonyl group, and a phosphoroso group: an alkyl group having 1 to 20 carbon atoms, a cycloalkyl group having 3 to 20 ring carbon atoms, an alkoxy group having 1 to 20 carbon atoms, an alkenyl group having 2 to 20 carbon atoms, an aryl group having 6 to 30 carbon atoms, a heteroaryl group having 3 to 30 carbon atoms, and combinations thereof;
optionally, R is, at each occurrence identically or differently, selected from a group consisting of: hydrogen, deuterium, a methyl group, an isopropyl group, NO2, SO2CH3, SCF3, C2F5, OC2F5, OCH3, a diphenylmethylsilyl group, a phenyl group, a methoxyphenyl group, a p-methylphenyl group, a 2,6-diisopropylphenyl group, a biphenylyl group, a polyfluorophenyl group, a difluopyridyl group, a nitrophenyl group, a dimethylthiazolyl group, a vinyl group substituted by one or more of CN or CF3, an acetenyl group substituted by one of CN or CF3, a dimethylphosphoroso group, a diphenylphosphoroso group, F, CF3, OCF3, SF5, SO2CF3, a cyano group, an isocyano group, SCN, OCN, a trifluoromethylphenyl group, a trifluoromethoxyphenyl group, a bis(trifluoromethyl)phenyl group, a bis(trifluoromethoxy)phenyl group, a 4-cyanotetrafluorophenyl group, a phenyl or biphenylyl group substituted by one or more of F, CN or CF3, a tetrafluoropyridyl group, a pyrimidinyl group, a triazinyl group, a diphenylboryl group, an oxaboraanthryl group, and combinations thereof.