Showa Denko Kabushiki Kaisha

Other

Sds Biotech K.k.

Nansho Seki

Hiroshi Kubo

Yukihiro Nakamura

Yuki Yamaguchi

Tetsuo Tsuruya

Noriyuki Sato

Tetsuo Takematsu

Masatomo Ito

Shizuo Ohga

Akira Terakawa

Tatuya Michibayashi

Takashi Isono

A pyrazole derivative represented by the formula (I): ##STR1## wherein R.sup.1 and R.sup.2 each represents a lower alkyl group, which has herbicidal activity, is disclosed. A process for preparing the pyrazole derivative of the formula (I) is also disclosed. A herbicide containing as an active ingredient the pyrazole derivative of the formula (I) is further disclosed as is a method for using the herbicide.

Herbicidal N-(5-t-butyl-3-pyrazolyl) carbamates

A novel pyrazole derivative represented by the formula [I]: ##STR1## wherein X and Y are defined in the specification, which has a herbicidal activity, is disclosed. A process for preparing the pyrazole derivative of the formula [I] is also disclosed. A herbicide containing as an active ingredient the pyrazole derivative of the formula [I] is further disclosed.

Herbicidal 5-t-butyl-3-(N-alkanoylamino)pyrazoles

A novel pyrazole derivative represented by the formula [I]: ##STR1## wherein X and Y are defined in the specification, which has herbicidal activity, is disclosed. A process for preparing the pyrazole derivative of the formula [I] is also disclosed. A herbicide containing as an active ingredient the pyrazole derivative of the formula [I] is further disclosed as is a method for using the herbicide.

Herbicidal 5-t-butyl-3-pyrazalylcarbamates and ureas

A compound of the general formula (I): ##STR1## wherein X is halogen or trifluoromethyl, n and m are 0 or 1, R.sub.1 is lower C.sub.1 - C.sub.2 alkyl or C.sub.1 - C.sub.2 alkoxy and R.sub.2 is C.sub.4 - C.sub.5 alkyl, cyclohexyl, or phenyl, methods of the preparation thereof, herbicidal compositions containing same and a method for controlling weeds using the same.

3-(.alpha.,.alpha.-Dimethylbenzyl)urea compounds, compositions, and

A compound of the general formula ##STR1## wherein Z is a hydrogen atom or a lower alkyl group; R.sub.1 is a hydrogen atom or an alkyl group; and R.sub.2 is a lower alkyl group or a phenyl group, which may have one or more lower alkyl, lower alkoxy, nitro, phenyl or trifluoromethyl groups or one or more halogen atoms as benzene substituent is found to be useful as a herbicide selectively combating weeds belonging to barnyardgrass of Gramineae and to Cyperacceae, without causing any phytotoxicity to rice plants.

Herbicidal 3-(2-phenylisopropyl)urea derivatives

A compound of the formula ##EQU1## wherein R represents a member selected from alkyl and alkenyl radicals of at most 4 carbon atoms, And a method for controlling weed growth which comprises applying to the locus to be treated a herbicidally effective amount of said .alpha., .alpha.-dimethylbenzylurea compound.

Growing community of inventors

Tokyo, Japan

Nansho Seki