Red organic electroluminescent compounds, method for synthesizing the same and electroluminescent devices

Abstract

Red organic electroluminescent compounds containing bis-condensed DCM derivatives, a method for synthesizing the same and an organic electroluminescent device using the same. The red organic electroluminescent compound having the formula: 1 wherein R1, R1′, R2 and R2′ are independently hydrogen atom, or C1—C30 alkyl, aryl or hetero ring; R3, R3′, R4 and R4′ are independently hydrogen atom, C1—C10 alkyl or alkoxy; one or more pairs selected from the group consisting of R1 and R3, R1′ and R3′, R2 and R4, and R2′ and R4′ can be connected in forms of —R1-R3—, —R1′-R3′—, —R2-R4—, and —R2′-R4′—; R5, R5′, R6 and R6′ are independently hydrogen atom, or C1—C30 alkyl, alkoxy or aryl; at least one of R3, R3′, R4, R4′, R5, R5′, R6 and R6′ is not hydrogen atom.

Dependencies are inferred from the claim text.