Patent ID: 7029764

Claim:
An organic electroluminescent material of the formula: wherein R 1 , R 2 and R 3 are at least one selected from the group consisting of hydrogen, halogen, nitryl, alkyl, cycloalkyl, alkyloxy, alkenyl, amine, aryl, polyaryl, arylalkyl, and propenyloxy, Ar 3 is at least one selected from the group consisting of unsubstituted or substituted aryl having 6 to 30 carbon atoms and unsubstituted or substituted polyaryl having 6 to 30 carbon atoms, and A is at least one selected from the group consisting of alkyl, cycloalkyl, alkyloxy, alkenyl, amine, aryl, polyaryl, arylalkyl, and propenyloxy, B is at least one selected from the group consisting of hydrogen, alkyl, cycloalkyl, alkyloxy, alkenyl, amine, aryl, polyaryl, arylalkyl, and propenyloxy, wherein Ar 3 bonds with A.