Nippon Paint Compnay, Ltd.

E-ray Optoelectronics Technology Co., Ltd.

Taizo Hatta

Satoshi Urano

Noriyuki Tsuboniwa

Otohiko Tsuge

Ryuzo Mizuguchi

Heh-Lung Huang

Banumathy Balaganesan

Rempei Kuwahara

Yoshiyuki Hirao

The present invention mainly provides a new imidazole compound, which can be used to produce electronic devices that are able to operate at low driving voltage and at high current efficiency. The new imidazole compound of the present invention is represented by the following formula (1): (In the formula (1), Rand Rare respectively the same as described in the specification).

Imidazole compound, material for electronic device, electroluminescent device, and electronic device thereof

The present invention relates to a triazole compound represented by the formula (1): ##STR1## wherein R.sup.1 represents a lower alkyl group which may have a substituent; R.sup.2 and R.sup.3 represent respectively hydrogen, an aryl group, a benzoyl group, a tosyl group, a lower alkoxy carbonyl group, or an aryl sulfonyl group, each of which except for hydrogen may have a substituent; provided that when R.sup.2 is hydrogen, the triazole compound is represented by the formula (2): ##STR2## wherein R.sup.1 and R.sup.3 have the same as defined above.

Hydrazide intermediates

A method for producing a (2-alkyl)acryloyl isocyanate of the formula I

Method for handling (2-alkyl) (acryloyl) isocyanate, method for

Hydrazone intermediates

A method for handling and stabilizing a (2-alkyl)-acryloyl isocyanate represented by the formula (1) ##STR1## is disclosed, which comprises the steps of: reacting an azomethine compound represented by formula (2) ##STR2## with the (2-alkyl)-acryloyl isocyanate of formula (1) to obtain the reaction product of formula (3) ##STR3## and dissolving said reaction product into a solvent to regenerate the (2-alkyl)-acryloyl isocyanate of formula (1); the identity of said solvent and R-groups being defined herein.

Method for handling (2-Alkyl)acryloyl isocyanate, method for stabilizing

Triazole compounds, their intermediates, and method for production of

Disclosed is a novel heterocyclic compound selected from the group consisting of the compounds [IV] to [VII], [IX] and [X]. The heterocyclic compound is useful for reactive materials in chemical industry. A process for producing the heterocyclic compound is also disclosed.

Growing community of inventors

Kumamoto, Japan

Taizo Hatta