Tosoh Corporation

Sagami Chemical Research Institute

Sagami Chemical Research Center

Japan Finechem Company, Inc.

Hidenori Aihara

Tsuyoshi Tanaka

Naoki Uchida

Tetsu Yamakawa

Masaru Sato

Nobumichi Arai

Takashi Iida

Akitoshi Ogata

Yousuke Hisamatsu

Yuichi Miyashita

Naoko Yanai

Mayumi Abe

Yoko Honma

Kenji Hirai

Keisuke Nomura

Yuji Oka

Wakako Yokota

A cyclic azine compound represented by general formula (1): wherein each Arrepresents an aromatic group, which is unsubstituted or substituted by a Calkyl group, a phenyl group or a pyridyl group; and A represents a group selected from those which are represented by general formulae (2) to (5), described in the description. The cyclic azine compound is useful for an organic compound layer of fluorescent or phosphorescent EL device.

Cyclic azine derivatives, processes for producing these, and organic electroluminescent element containing these as component

A cyclic azine compound of formula (1): wherein, Y is C&#x2014;H or a nitrogen atom, Aris a Caromatic hydrocarbon group, which may be substituted with an Calkyl group or a phenyl group, Aris a hydrogen atom, or a Caromatic hydrocarbon group, which may be substituted with a phenyl group or a pyridyl group, or is a nitrogen-containing condensed ring Caromatic group, Aris a nitrogen-containing condensed ring Caromatic group, X is a phenylene group, and n is an integer in the range of 0-3. The cyclic azine compound is useful as a constituent of an organic electroluminescent device.

Cyclic azine compound having nitrogen-containing condensed aromatic group, method for producing same, and organic electroluminescent device comprising same as constituent component

A 1,3,5-triazine derivative represented by the formula (1): wherein R, Rand Reach independently represent a hydrogen atom or a methyl group; X represents a carbon atom or a nitrogen atom; Arrepresents a substituted or unsubstituted aromatic hydrocarbon group; Arrepresents an Calkyl-substituted or unsubstituted aromatic 6-membered heterocyclic group having one or two nitrogen atoms, which may be a condensed ring compound. An organic electroluminescent device comprising the 1,3,5-triazine derivative exhibits low power consumption and long lifetime.

1,3,5-triazine derivative, process for producing same, and organic electroluminescent element comprising same as constituent component

A 1,3,5-triazine derivative represented by formula (1): wherein Ris hydrogen, Calkyl group or substituted or unsubstituted phenyl group; n is an integer of 1-3, Ar is a substituted or unsubstituted aromatic hydrocarbon group, provided that Ar is different from two substituted quarterarylenyl groups bonded to the 1,3,5-triazine ring; and V and Y are nitrogen or carbon, provided that a case where both of V and Y are carbon atoms is excluded. The organic electroluminescent device comprising the 1,3,5-triazine derivative as an electron transport material has a long lifetime.

1,3,5-triazine derivative, process for producing same, and organic electroluminescent element comprising same as constituent

A phenyl-substituted 1,3,5-triazine compound represented by the general formula (1): wherein Arand Arindependently represent substituted or unsubstituted phenyl, naphthyl or biphenylyl group; R, Rand Rindependently represent hydrogen atom or methyl group; Xand Xindependently represent substituted or unsubstituted phenylene, naphthylene or pyridylene group; p and q independently represent an integer of 0 to 2; and Arand Arindependently represent substituted or unsubstituted pyridyl or phenyl group. This compound is suitable for an organic electroluminescent device.

Phenyl-substituted 1,3,5-triazine compound, process for producing the same, and organic electroluminescent device containing the same as component

A phenyl-substituted 1,3,5-triazine compound represented by the general formula (1); wherein Arand Arindependently represent substituted or unsubstituted phenyl, naphthyl or biphenylyl group; R, Rand Rindependently represent hydrogen atom or methyl group; Xand Xindependently represent substituted or unsubstituted phenylene, naphthylene or pyridylene group; p and q independently represent an integer of 0 to 2; and Arand Arindependently represent substituted or unsubstituted pyridyl or phenyl group. This compound is suitable for an organic electroluminescent device.

Since the conventional electron transporters have low thermal stability, the organic electroluminescent devices using them are not sufficient in terms of the compatibility of their luminance and luminous efficiency with device lifetime. A 1,3,5-triazine derivative of formula (1) is obtained by a metal catalyst-aided coupling reaction of a compound of formula (2) with a compound of formula (3), and this is used as a composing component of an organic electroluminescent device. [In the formulae, Arand Arrepresent phenyl group or the like, Rand Rrepresent hydrogen atom or the like, Rrepresents methyl or the like, m is an integer of 0 to 2, X represents 2,4-pyridylene or the like, p is 1 or 2, a and b are 1 or 2, a+b is 3, q is 0 or an integer of p or less, M represents &#x2014;MgRgroup or the like, Rrepresents chlorine atom or the like, r is p-q, and Y represents a leaving group.]

1,3,5-triazine derivative, production method thereof and organic electroluminescence device comprising this as a composing component

In a process for producing 1-substituted-3-fluoroalkyl-pyrazole-4-carboxylate (3) by a reaction of 2-alkoxymethylenefluoroacylacetate (1) and hydrazine (2), the reaction is conducted in the presence of a base and water, to produce 1-substituted-3-fluoroalkylpyrazole-4-carboxylate (3) with high selectivity and yield. This novel process enables to produce 1-substituted-3-fluoroalkylpyrazole-4-carboxylate (3), which is useful as an intermediate for pharmaceuticals and agrochemicals, with high selectivity and yield by simple and safe operations.

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Kanagawa, Japan

Hidenori Aihara