Takeda Chemical Industries, Inc.

Nihon Tokushu Noyaku Seizo Kabushiki Kaisha

Tetsuo Okauchi

Isao Minamida

Koichi Iwanaga

Hideki Uneme

Noriko Higuchi

Yasuo Sato

Kentaro Hiraga

Yasuyuki Kando

Saburo Tamura

Hitoshi Ishizuka

Yukio Gotou

Shoji Takamuku

Seifun Chou

Masatoshi Sawamura

&agr;-unsaturated amines, their production and use

.alpha.-Unsaturated amines of the formula: ##STR1## wherein X.sup.1 and X.sup.2 are such that one is an electron-attracting group with the other being a hydrogen atom or an electron-attracting group; R.sup.1 is a group attached through a nitrogen atom; R.sup.2 is a hydrogen atom or a group attached through a carbon, nitrogen or oxygen atom; n is an integer equal to 0, 1 or 2; A is a heterocyclic group or a cyclic hydrocarbon group, and salts thereof and their agrochemical use as insecticidal and/or miticidal agents are described.

.alpha.-unsaturated amines, their production and use

An insecticidal composition containing a guanidine derivative of the formula: ##STR1## wherein R.sup.1 is an optionally substituted homocyclic or heterocyclic group, n is 0 or 1, R.sup.2 is a hydrogen atom or an optionally substituted hydrocarbon group, R.sup.3 is a primary, secondary or tertiary amino group, X is an electron attractive group such as nitro or trifluoroacetyl group, provided that when n is 0, R.sup.1 is an optionally substituted heterocyclic group or a salt thereof.

Guanidine derivatives their production and insecticides

Guanidine derivatives, their production and insecticides

Diaminoethylene derivatives of the formula: ##STR1## wherein R.sup.1 is a heterocyclic group which may be substituted, R.sup.2, R.sup.3 and R.sup.4 are a hydrogen atom or a hydrocarbon group which may be substituted or R.sup.3 and R.sup.4 are combined to form a cyclic amino group together with the adjacent nitrogen atom; R.sup.5 is hydrogen atom or a hydrocarbon group or heterocyclic group which may be substituted; X is an electron attractive group; Y is a hydroxyl or substituted hydroxyl group, amino or substituted amino group or mercapto or substituted mercapto group; n is 0 or 1; or their salts, which are useful as insecticides.

Diaminoethylene compounds

Novel substituted nitroguanidine derivatives and salts thereof having the following formula: ##STR1## wherein R.sup.1 is a substituted or unsubstituted heterocyclic group; R.sup.2 is a group attached through a sulfur atom, a group attached through a phosphorus atom, cyano, --CO--OR.sup.6 wherein R.sup.6 is a substituted or unsubstituted hydrocarbon group or a substituted or unsubstituted heterocyclic group, or --CO--NR.sup.7 R.sup.8 wherein R.sup.7 and R.sup.8, which are the same or different, are each independently hydrogen, a substituted or unsubstituted hydrocarbon group or a substituted or unsubstituted heterocyclic group, or R.sup.7 and R.sup.8, taken together with the nitrogen atom to which they are attached are a cyclic amino group; R.sup.3 is hydrogen, a substituted or unsubstituted hydrocarbon group (except for one substituted with an oxo group at the binding site), a group attached through a sulfur atom, a group attached through a phosphorus atom, cyano, --CO--R.sup.9 wherein R.sup.9 is hydrogen, a substituted or unsubstituted hydrocarbon group or a substituted or unsubstituted heterocyclic group, --CO--OR.sup.10 wherein R.sup.10 is a substituted or unsubstituted hydrocarbon group or a substituted or unsubstituted heterocyclic group, or --CO--NR.sup.11 R.sup.12 wherein R.sup.11 and R.sup.12, which are the same or different, are each independently hydrogen, a substituted or unsubstituted hydrocarbon group or a substituted or unsubstituted heterocyclic group, or R.sup.11 and R.sup.12, taken together with the nitrogen atom to which they are attached are a cyclic amino group; and R.sup.4 is hydrogen or a lower alkyl group; which have unexpectedly potent pesticidal activity and very low toxicity.

Substituted guanidine derivatives, their preparation and use

Stable agrochemical compositions are provided by incorporating at least one of the .alpha.-unsaturated amine derivatives having the following formula: ##STR1## wherein one of X.sup.1 and X.sup.2 is an electron attracting group and the other is hydrogen or an electron attracting group; R.sup.1 is a group attached through a nitrogen atom; R.sup.2 is hydrogen or a group attached through a carbon, nitrogen, or oxygen atom; n is an integer of 0, 1, or 2; and A is a substituted or unsubstituted heterocyclic group or a substituted or unsubstituted cyclic hydrocarbon group; and salts thereof, into an agrochemically acceptable solid carrier (clay minerals capable of adsorption (including fuller's earth, terra alba, bentonite, and activated fuller's earth), zeolite, activated charcoal, and .beta.-cyclodextrin, etc.) under a pH 5.5 or less condition. The agrochemical (pesticidal) compositions exert potent shelf life and light-resistance.

Stable agrochemical compositions including alpha-unsaturated amine

Halogen substituted 5-thiazole methane amine compounds

Alpha-unsaturated amine pyridine compounds

There is provided a pest control composition containing a compound represented by the formula, ##STR1## wherein R.sup.1, R.sup.2, R.sup.3 and R.sup.4 are the same or different and independently mean a hydrogen atom, a hydrocarbon group which may be substituted or a heterocyclic group which may be substituted and X means an electron attracting group or a salt thereof. The compounds are of minimal toxicity to man, domestic animals and fish and selectively display remarkable control effect on pests.

Tetrahydropyrimidines, their production and use

Novel acaricidal agents which contains, as an active ingredient, a pyrroline derivative of the formula: ##STR1## wherein R.sup.1 and R.sup.2 are each hydrogen, halogen or lower alkyl;

Acaricidal agents

Quality silkworm cocoons are obtained in a high yield per unit rearing time and per unit amount of feedstuff by administering insect juvenile hormonal factors to the silkworm larvae at an early stage of their final instar and administering insect moulting hormonal factors at a later stage of their final instar.

Growing community of inventors

Osaka, Japan

Tetsuo Okauchi