摘要 |
Benzotriazole derivatives represented by the following general formula (1),;;wherein Ar1 and Ar2 are, for example, aromatic hydrocarbon groups or aromatic heterocyclic ring groups, and A is a group including a pyridine ring. The compounds excel in electron injection/transport capability, feature a high hole-blocking power and a high stability in their thin-film form, and are useful as materials for producing highly efficient and highly durable organic electroluminescent devices. |
主权项 |
1. Benzotriazole derivatives represented by the following general formula (1), wherein,
Ar1 is an aromatic hydrocarbon group or an aromatic heterocyclic group,Ar2 is a hydrogen atom, a deuterium atom, an aromatic hydrocarbon group or an aromatic heterocyclic group, andA is a monovalent group represented by the following formula (2), wherein,
m is an integer of 0, 1 or 2,X is a carbon atom or a nitrogen atom,R1 to R8 are, respectively, hydrogen atoms, deuterium atoms, fluorine atoms, chlorine atoms, cyano groups, alkyl groups having 1 to 6 carbon atoms, aromatic hydrocarbon groups or aromatic heterocyclic groups,when X is a nitrogen atom, none of the groups R1 to R4 are bonded to the nitrogen atom, and any one of R1 to R4 is not present, andwhen m is 2, a plurality of R1 to R4 and X may be the same or different from each other. |