Nippon Kayaku Kabushiki Kaisha

Tama Biochemical Co., Ltd.

Fumio Futatsuya

Mikio Yanagi

Osamu Yamada

Shizuo Shimano

Atsuhiko Shida

Kenji Kobayashi

Shinichi Kobayashi

Mikio Saito

Hiroshi Yamamoto

Hitoshi Sato

Shuichi Ishida

Masato Katayama

Suguru Takatsuto

Shingo Marumo

Akira Kurozumi

Kensaku Ito

Shuji Kawada

Disclosed herein is a novel brassinosteroid derivative represented by the formula: ##STR1## wherein R.sub.3 represents C.sub.1-2 -alkyl,

Brassinosteroid derivatives and plant growth regulators

Indoleacetic acid derivatives and application thereof as plant growth

Disclosed is a compound exhibiting herbicidal activity of the formula: ##STR1## wherein R.sup.1 is hydrogen, halogen or methyl, R.sup.2 is hydrogen, halogen or lower alkyl, R.sup.3 is lower alkyl which may be substituted by halogen or methylsulfonyl, benzyl or phenyl which may be substituted by halogen or nitro, R.sup.4 is hydrogen; lower alkyl which may be substituted by carboxy or lower alkoxycarbonyl; lower alkenyl; lower alkynyl; methylsulfonyl or benzyl which may be substituted by halogen, X is hydrogen, halogen or C.sub.1 -C.sub.2 -alkyl, Y is C.sub.1 -C.sub.2 -alkyl, X may make --(CH.sub.2).sub.3 -- or --(CH.sub.2).sub.4 -- together with Y, W is halogen.

Herbicidal 5-halo-1-[5-(N-substituted sulfonylamino)phenyl]pyrazole

New herbicidal N-substituted-.DELTA..sup.1 -tetrahydrophthalimide derivatives represented by the formula: ##STR1##

N-substituted-.DELTA..sup.1 -tetrahydrophthalimide derivatives

A compound of the formula: ##STR1## wherein Z is ##STR2## wherein R.sub.4 is lower alkyl, X and Y are oxygen or sulfur and n is an integer of 3 to 6, R.sub.1 is hydrogen or halogen, R.sub.2 is halogen and R.sub.3 is hydrogen or C.sub.1 -C.sub.8 -alkyl which may have lower alkoxy; a herbicidal composition containing said compound as an effective component; a method for killing weeds using said compound; and processes for the production of said compound, are disclosed hereinafter.

1H[1,2,4]-Triazolo[1,2-a]pyridazine-1,3-diones useful as herbicides

A compound of the formula: ##STR1## wherein R.sub.4 is lower alkyl, X is oxygen or sulfur, and n is integer of 3 or 4; R.sub.1 is hydrogen or halogen; R.sub.2 is halogen; R.sub.3 is hydrogen or C.sub.1 -C.sub.8 -alkyl which may have lower alkoxy; a herbicidal composition containing said compound as an effective component; a method for killing weeds using said compound; and processes for the production of said compound, are disclosed hereinafter.

Heterocyclic compound and a herbicidal composition containing said

A new N-substituted tetrahydroisophthalimde derivative represented by the formula: ##STR1## Wherein R.sub.1 and R.sub.2 are hydrogen or halogen, R.sub.3 is hydrogen or lower alkyl and R.sub.4 is alkyl which may be substituted by halogen or lower alkoxy, and preparation methods thereof and herbicidal composition comprising one or more of said derivatives as active ingredients, is disclosed.

N-Substituted-tetrahydroisophthalimide derivatives

Novel plant growth regulants of the formula: ##SPC1## Wherein R.sub.1 and R.sub.2, which may be the same or different, each represent hydrogen atoms or lower alkyl groups, R.sub.3 is a lower alkyl group or a chlorine atom and R.sub.4 is a lower alkyl group or an allyl group.

Growing community of inventors

Ohmiya, Japan

Fumio Futatsuya