Kumiai Chemical Industry Co., Ltd.

Ihara Chemical Industry Co., Ltd.

Other

Ryuji Tamai

Minoru Ito

Akira Kato

Yuki Nakano

Masami Kobayashi

Yukio Uchida

Fumiaki Takabe

Ryo Maruyama

Norimichi Muramatsu

Takashi Mitsunari

Satoru Takahashi

Ryo Kobayashi

Norihisa Yonekura

Hiroyuki Yano

Takahiro Kawashima

Masatoshi Tamaru

Masami Ozaki

Junetsu Sakai

Tetsuya Abe

Kazuhiro Ikegaya

Shunichiro Fukumoto

Makikazu Takagaki

Kouzou Nagayama

A method for producing a compound of a formula (3), including reacting a compound of a formula (1) with a compound of a formula (2) by using a tertiary alcohol and a base: where R, R, R, R, R, R, R, R, and Rare each independently a hydrogen atom, a halogen atom, a (C1-C4)alkyl, or a (C1-C4)alkoxy, the amount of the base used is 2.0-4.0 equivalents per 1 equivalent of the compound of formula (2), the amount of the tertiary alcohol used is 0.3-2.5 equivalents per 1 equivalent of the compound of formula (2), the base is a plurality of compounds comprising a lithium-containing base as a first compound, and a second compound selected from the group consisting of alkali metal hydrides, alkali metal amides, alkoxides, alkyl metals, alkali metals, and organic bases, and the reaction is performed in the presence of an aromatic hydrocarbon solvent.

Methods for producing nitroso compound and quinoxaline compound

A method for producing a nitroso compound of the following formula (3), comprising reacting a compound of the following formula (1) with a compound of the following formula (2) by using a tertiary alcohol and a base. 

The present invention is to provide an oxopyrazine derivative having an excellent herbicidal activity and besides exhibiting high safety for useful crops and the like, or a salt thereof, and a herbicide containing the same. The present invention relates to an oxopyrazine derivative represented by formula [I]: wherein Xrepresents an oxygen atom or a sulfur atom; Xrepresents CH or N(O); m represents an integer of 0 or 1; Rrepresents a hydrogen atom, a C-Calkyl group and the like; Rrepresents a halogen atom, a cyano group and the like; Ris a hydroxyl group, a halogen atom and the like; Arepresents C(RR); Arepresents C(RR) or C&#x2550;O; Arepresents C(RR); Rto Rrepresent a hydrogen atom or an alkyl group,

Substituted pyrido[2,3-b]pyrazines and an agrochemical composition thereof

Substituted quinoxaline and an agrochemical composition thereof

A difluoroalkene derivative which is sufficiently effective in controlling various pests even when used in a small dose and is highly safe for crops, natural enemies to the pests, and animals; and an intermediate for the derivative. The difluoroalkene derivative is represented by the general formula: [I] wherein Land Lare the same or different and each represents oxygen or sulfur; n is an integer of 2 to 8; and Q represents a 5- to 12-membered heterocyclic group having any desired heteroatom selected among nitrogen, oxygen, and sulfur 

Difluoroalkene derivative, pest control agent containing the same, and intermediate therefor

Carbamate derivative and agricultural/horticultural fungicide

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Shizuoka, Japan

Ryuji Tamai