Organic compounds and organic electroluminescence devices employing the same are provided. The organic compound has a chemical structure represented as follows: wherein, R1 and R2 are independent and can be aryl, heteroaryl, cycloalkyl, hetero-cycloalkyl, or a cycloaliphatic group, or R1 and R2 link together with the carbon atoms to which they are attached to form a fused aryl, heteroaryl, cycloalkyl, hetero-cycloalkyl, or a cycloaliphatic group, and R3, R4, and R5 are independent and can be H, C1-8 alkyl, C1-8 alkoxy, C1-8 halo-alkyl, aryl, heteroaryl, cycloalkyl, hetero-cycloalkyl, or a cycloaliphatic group.