Mitsui Toatsu Chemicals, Incorporated

Yoshikata Hojo

Takeo Yoshimoto

Teruhiko Toyama

Yuji Enomoto

Masaaki Ura

Yoshio Takasawa

Yasunobu Funakoshi

Takashi Fujita

Kengo Oda

Akira Hosono

Takeo Harayama

Osamu Morikawa

Joh Miki

Tsutomu Ishii

Keiichi Igarashi

Makoto Nishida

Yukiharu Fukushi

Hideo Michiyama

Takayuki Inoue

Takao Baba

Yoshinori Tanaka

Naoki Sato

Koichi Takeuchi

Hitoshi Shimotori

Kazuya Sakai

Hajime Tachibana

Shunichi Inami

Toshiyuki Kouno

Taisuke Kurechi

Toshimi Tanaka

Osamu Morikama

Mithuo Itakura

Masahiro Sakakibara

Novel 3-substituted phenyl-2-isoxazoline-5-carboxylic acids or esters thereof. These compounds have excellent properties as plant growth regulators.

Isoxazoline derivatives and plant growth regulators

Novel diphenyl ether hydrazine derivatives, particularly 2-nitro-5 (nucleus-substituted phenoxy) phenylhydrazine derivatives are provided. They are useful as a selective herbicide having a high herbicidal activity and residual efficacy.

Diphenyl ether derivatives and herbicides containing same

Substituted propargyloxyacetonitrile derivative represented by the general formula (I) ##STR1## wherein R represents a hydrogen atom, a halogen atom, a lower alkyl group, a lower haloalkyl group, a lower alkoxy group, a methylenedioxy group, a nitro group or a cyano group, n represents an integer of 1 to 5 and when n is an integer of 2 or more, R's may be identical or different, R.sup.1 represents a hydrogen atom or a lower alkyl group, and R.sup.2 represents a hydrogen atom, a lower alkyl group, a lower haloalkyl group or a halogen atom, provided that R.sup.1 and R.sup.2 are not simultaneously hydrogen atoms. The compounds have herbicidal and fungicidal activities.

Substituted propargyloxyacetonitrile derivatives, process for production

Novel diphenyl ether hydrazine derivatives, particularly 2-nitro-5 (nucleus-substituted phenoxy) phenylhydrazine derivatives are provided. They are useful as a selective herbicide having a high herbicidal acitivity and residual efficacy.

Nitrodiphenyl ether derivatives of the general formula: ##STR1## wherein X represents chlorine, fluorine, methyl or trifluoromethyl and n is an integer of 1-3 are valuable as herbicides, the compounds and compositions containing these compounds possessing an excellent herbicidal activity to a wide variety of undesirable weeds with an extremely low toxicity to useful crops.

Herbicidal compounds and compositions

A tetrahydrofuran derivative represented by the general formula ##STR1## wherein X.sub.1 and X.sub.3 represent a hydrogen or halogen atom, and X.sub.2 represents a halogen atom or a trifluoromethyl group. The compounds have excellent herbicidal activity and can be prepared by reacting a compound of the formula ##STR2## wherein R represents a nitro group or a group of the formula ##STR3## in which X.sub.1, X.sub.2 and X.sub.3 are as defined above, with 3-hydroxytetrahydrofuran in the presence of an alkali.

Tetrahydrofuran derivatives

Herbicidal diphenyl ether compound

Employment of N-(butoxymethyl)-2-chloro-2',6'-diethyl acetanilide in combination with at least one .alpha.-(.beta.-naphthoxy)-propionic acid derivative as active ingredients provides an excellent herbicidal composition effective on a variety of weeds.

Herbicidal composition

Nitrodiphenyl ether derivatives of the general formula: ##STR1## wherein X stands for Cl, F, CH.sub.3 or CF.sub.3, n is an integer of 1-3 with the proviso that X may be the same or different when n is 2 or 3 but X.sub.n should not be 2,4-dichloro substituent, Are valuable as herbicides possessing an excellent herbicidal activity to a wide variety of undesirable weeds with an extremely low toxicity to useful crops. These nitrodiphenyl ether derivatives are prepared by hydroxyethylation of a compound of the above general formula except that a halogen atom is present in place of nitro group and subsequent halogenation of the .beta.-hydroxyethoxy group of the resulting compound.

Nitro-diphenyl ethers

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Chigasaki, Japan

Yoshikata Hojo