Triphenylamine derivative and organic electroluminescence device comprising the same
AssigneeSumitomo Electric Industries, Ltd.
InventorsTakashi Uemura, Nobuyuki Okuda, Yoshinobu Ueba
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Abstract
A triphenylamine derivative represented by the following general formula (1): wherein R1, R2, R3, R4, R5 and R6 may be the same or different and each represents a hydrogen atom, alkyl group, halogenated alkyl group, aryl group, dialkylamino group or cyano group; and φ1 and φ2 may be the same or different and each represents an aromatic condensed ring which may have a substituent. Also disclosed is an electroluminescence device comprising the triphenylamine derivative.
Claims17
A triphenylamine derivative represented by the following general formula (1):
- wherein R1, R2, R3, R4, R5 and R6 may be the same or different and each represents a hydrogen atom, alkyl group, halogenated alkyl group, aryl group, dialkylamino group or cyano group;
- and φ1 and φ2 may be the same or different and each represents an aromatic condensed ring which may have a substituent.
A method of preparing a triphenylamine derivative represented by the following general formula (1d), said method comprising the steps of:
- (a) reacting a molar ratio of a N-phenyl-N-(2-napthyl)amine having formula (1a)
- with 4,4-diiodobiphenyl to form a 4-(N-phenyl-N-(2-napthyl))amino-4′-iodobiphenyl having the following formula (1b)
- (b) reacting the compound of formula (1b) with N,N′-diphenylbenzidine represented by formula (1c) below in a molar ratio such that the compound of formula (1b) is more than 2 molar parts per one molar part of the compound of formula (1c)
- to form the diphenyl amine derivative having formula (1d)
- wherein R1, R2, R3, R4 and R5 may be the same or different and each represents a hydrogen atom, alkyl group, halogenated alkyl group, aryl group, dialkylamino group or cyano group;
- and φ is a napthal group which may be a substituted napthyl group.
Dependencies are inferred from the claim text.