Agro-kanesho Co., Ltd.

Toyo Soda Manufacturing Co., Ltd.

Toyo Soda Mfg. Co., Ltd.

Kanesho Co., Ltd.

Agro-kenesho Co., Ltd.

Shinzo Someya

Yuji Nonaka

Akira Nakanishi

Mikio Ito

Seigo Koura

Rokuro Akahira

Akinori Suzuki

Akira Isogai

Hiroshi Horino

Nobuo Onodera

Suong B Hyeon

Shigenori Segami

Takashi Kikkawa

Kazuaki Tsukuda

Michihiro Ohnaka

Takashi Kiuchi

A herbicide exhibiting high herbicidal activity against a variety of weeds and being highly safe for useful crops can be obtained through the use of a heterocyclic compound represented by the following general formula (I): ##STR1## wherein R represents a group represented by the following formula: ##STR2## X represents an oxygen atom or a sulfur atom; R.sup.1 represents a halogen atom or a lower alkyl group; R.sup.2 represents a hydrogen atom or a methyl group; R.sup.3 represents a halogen atom, a lower alkyl group, a lower haloalkyl group, a lower alkoxy group, a lower alkylthio group, a cyano group or --COOR.sup.4 (R.sup.4 is a lower alkyl group, a lower alkoxyalkyl group or a tetrahydrofurfuryl group); m is 0, 1 or 2 and n is 0, 1, 2 or 3.

Heterocyclic compounds and herbicidal compositions containing the

A propionic acid thiol ester derivative having the formula: ##STR1## wherein R.sub.1 is a cyano group, a trifluoromethyl group, a halogen atom or a nitro group,

Certain-2-pyridyloxy-phenoxy-propionic acid-s-thiazolin-2-yl and

Disclosed herein are novel chloroacetanilide derivatives which act as remarkably effective herbicides when sprayed in a paddy field, the chloroacetanilide derivatives being 2',6'-diethyl-N-[(cis-alkenyloxy)methyl]-2-chloroacetanilides [A] represented by the general formula ##STR1## wherein R is a cis-form alkenyl group having 4 or 5 carbon atoms. Also disclosed are herbicide compositions for use in a paddy field and containing at least one of said chloroacetanilide derivatives [A] and at least one pyrazole derivative [B] represented by the general formula ##STR2## wherein R is a hydrogen atom or methyl group and X is a 4-toluenesulfonyl group or benzoylmethyl group; or-.alpha.-(2-naphtoxy)-propyonanilide [C] represented by the formula ##STR3##

Novel chloroacetanilide derivatives and herbicides containing the same

1,2,4-oxadiazole derivatives having selective herbicidal action in controlling broad leaf weeds and cyperaceous weeds without causing phytotoxicity to geraminous crop plants having the formula: ##STR1## wherein A is a methine group or a nitrogen atom; R.sub.1 is a chlorine atom or a methyl group; when A is a methine group, R.sub.2 is a hydrogen atom if R.sub.1 is a methyl group, and a hydrogen atom or a methyl group if R.sub.1 is a chlorine atom, and when A is a nitrogen atom, R.sub.2 is a hydrogen atom; R.sub.3 is a hydrogen atom, an alkyl group having from 1 to 11 carbon atoms, a benzyl group unsubstituted or substituted by chlorine or methoxy; a phenoxymethyl group unsubstituted or substituted by chlorine or methyl, or a lower alkoxyalkyl group.

1,2,4-oxadiazole derivatives, and selective herbicidal compositions

A hydroxyacetic acid amide derivative having the formula: ##STR1## wherein each of R and R.sub.1 which may be the same or different, is an alkyl, alkenyl, alkynyl or alkoxyalkyl group having from 1 to 4 carbon atoms, provided that R and R.sub.1 are not simultaneously alkyl groups.

Hydroxyacetic acid amide derivatives, and herbicidal compositions

A propionic acid thiol ester derivative having the formula: ##STR1## wherein R.sub.1 is a cyano group, a trifluoromethyl group, a halogen atom or a nitro group, R.sub.2 is a hydrogen atom, a halogen atom or a cyano group, R.sub.3 is a thiazolin-2-yl group or a benzothiazol-2-yl group, and A is a methine group or a nitrogen atom.

Propionic acid thiol ester derivatives and herbicidal compositions

A plant growth regulator comprising, as its active component, one or more compounds selected from the group consisting of [+]-hexylitaconic acid, and the dihydro derivative and lower alkyl monoesters thereof is effective for growth regulation of plants.

Plant growth regulator

Novel compounds in the form of 2-[4-(4-cyanophenoxy)-phenoxy]-propionic or acetic acid amide derivatives and selective herbicides containing the same as an active ingredient.

Herbicidal 2-[4-(4-cyanophenoxy)-phenoxy]-alkanoic acid amides

Propionic acid derivatives represented by the formula (I) ##STR1## wherein X indicates an oxygen atom or a sulfur atom, Y indicates a hydrogen atom or a halogen atom, R.sub.1 and R.sub.2 are the same or different group, indicating an alkyl group, alkenyl group, alkynyl group, cycloalkyl group, lower alkoxy group, lower alkoxyalkyl group, phenyl group, respectively, or R.sub.1 and R.sub.2 may form a heterocyclic group together with a nitrogen atom bonding to said R.sub.1 and R.sub.2, and herbicidal compositions employing them.

Propionic acid derivatives and herbicides employing them

A herbicidal composition for paddy fields is provided by the present invention, which contains as active ingredients a mixture or a combination of N-chloroacetyl-N-(2,6-diethylphenyl)-glycineethylester and 2,4-bis(ethylamino)-6-methylthio-1,3,5-triazine. This composition exhibits synergistic herbicidal effect against various weeds grown in paddy fields, during the period of from the time of their germination up to the growing stage.

Growing community of inventors

Tokorozawa, Japan

Shinzo Someya