Nissan Chemical Industries Limited

Nissan Chemical Corporation

Yoshiyuki Kusuoka

Kenji Makino

Tsutomu Nawamaki

Shigeomi Watanabe

Norio Tanaka

Hideaki Suzuki

Yoshihiro Kudo

Jun Satow

Takeshi Nagaoka

Toshimasa Hamada

Keisuke Tsuji

Yoichi Ito

Yoshihiko Nakaya

Toshio Niki

Kazuhisa Sudo

Daisuke Tanima

Nao Kitayado

Provided is a novel process for selectively producing the E-geometrical isomer or Z-geometrical isomer of an oximino compound useful as a medicine or agrochemical. In the process, a mixture of geometrical isomers of an oximino compound represented by formula (EZ)-1 is mixed with an acidic compound to produce the E-isomer of the oximo compound represented by the formula (E)-1 or the Z-isomer of the oximino compound represented by the formula (Z)-1 in high yields with high stereoselectivity.

Method for producing geometrical isomer of oximino compound

Crystal forms of sulfonylurea compound and method for producing the same. It has been found that a sulfonylurea compound of Formula (1): has two types of crystal polymorphisms and four types of pseudo crystal polymorphisms. A production method of each crystal form of the sulfonylurea compound of Formula (1) through recrystallization or solvate has been also found. In addition, a suspension of a composition containing the crystal that is improved in storage stability is provided.

Crystal forms of sulfonylurea compound and method for producing the same

A process for the separation of phenyluracil compounds is provided. The process according to the present invention comprises treating with a weakly-basic substance a mixture of a halogenophenyluracil compound (I) and a cyanophenyluracil compound (II): ##STR1## wherein X is a hydrogen or fluorine atom, Y is a chlorine or bromine atom, and R is an alkyl group containing 1 to 3 carbon atoms, to separate the compounds (I) and (II).

Process for the separation of phenyluracil compounds

Fluoropropylthiazoline derivatives and herbicides

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Funabashi, Japan

Yoshiyuki Kusuoka