Ihara Chemical Industry Co., Ltd.

Kumiai Chemical Co.

Kumiai Chemical Industry Co., Ltd.

Norihiro Kawamura

Ryo Yoshida

Masatoshi Tamaru

Shigehiko Tachikawa

Fumiaki Takabe

Masahiro Sato

Compounds of the formula ##STR1## as intermediates for the preparation of pyrimidine or triazine herbicides.

Pyrimidine or triazine derivatives

A pyrimidine or triazine derivative and its salt, said pyrimidine or triazine derivative having the formula: ##STR1## wherein R represents a group of the formula OR.sup.3 {wherein R.sup.3 represents a hydrogen atom, an alkyl group, etc.}, a group of the formula SR.sup.6 {wherein R.sup.6 represents a hydrogen atom, an alkyl group, etc.}, a group of the formula ##STR2## {wherein R.sup.7 and R.sup.8 represent a hydrogen atom, an alkyl group, etc.}, or an imidazolyl group:

Triazine derivatives and herbicidal composition containing the same

A pyrimidine or triazine derivative and its salt, said pyrimidine or triazine derivative having the formula: ##STR1## wherein R represents a group of the formula OR.sub.3 {wherein R.sup.3 represents a hydrogen atom, an alkyl gorup, etc.}, a group of the formula SR.sup.6 {wherein R.sup.6 represents a hydrogen atom, an alkyl group, etc.}, a group of the formula ##STR2## {wherein R.sup.7 and R.sup.8 represent a hydrogen atom, an alkyl group, etc.}, or an imidazolyl group:

Pyrimidine derivatives and herbicidal composition containing the same

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Shizuoka, Japan

Norihiro Kawamura