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US 8,796,461 B2Granted
1,2,4,5-substituted phenyl compound, method for producing same and organic electroluminescent device comprising same as constituent
AssigneeTosoh Corporation
InventorsTsuyoshi Tanaka, Mayumi Abe, Nobumichi Arai, Naoki Uchida, Takashi Iida
Life of this patent
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Abstract
A 1,2,4,5-substituted phenyl compound represented by the formula (1): wherein one of X1-X5 is nitrogen and the remainders of X1-X5 are carbon; R1 and R2 represent hydrogen, C1-6 alkyl or C1-6 alkoxy; R3 and R4 represent C1-6 alkyl or C1-6 alkoxy; and m is an integer of 0-4, and n is an integer of 0-5. This compound is useful as a constituent for an organic electroluminescent device.
Claims3
A 1,2,4,5-substituted phenyl compound represented by the following formula (1):
- wherein
- one of X3 and X4 represents a nitrogen atom and the other of X3 and X4 represents a carbon atom, and X1, X2 and X5 represent a carbon atom;
- R1 and R2 independently represent a hydrogen atom, an alkyl group having 1 to 6 carbon atoms or an alkoxy group having 1 to 6 carbon atoms;
- R3 and R4 independently represent an alkyl group having 1 to 6 carbon atoms or an alkoxy group having 1 to 6 carbon atoms;
- and m represents an integer in the range of 0 to 4, provided that, in the case when m is at least 2, each R3 may be the same or different;
- and n represents an integer in the range of 0 to 4, provided that, in the case when n is at least 2, each R4 may be the same or different.
3 more elements
Dependencies are inferred from the claim text.