Patent ID: 7858207

Claim:
An organic electroluminescent device comprising: an anode, a cathode, and a compound of Formula I: wherein R 2 may be a substituent selected from the group consisting of hydrogen, alkyl, substituted or unsubstituted aryl, heteroaryl, and alicyclic alkyl; wherein at least one of the R 1 substituents is different from R 2 and is diphenylvinyl; and wherein if only one of the R 1 substituents is diphenylvinyl then the other R 1 substituent is selected from the group consisting of hydrogen, an alicyclic alkyl group with, for example, from about 3 to about 15 carbon atoms, a dialkylamino group with from about 2 to about 25 carbon atoms, cyclohexyl, dimethylamino, diethylamino, a cyano group and halogens.