Sumitomo Chemical Company, Limited

Haruyasu Yamamoto

Takayuki Okabe

Kiyoshi Kasamatsu

Hirosi Kisida

Kunio Mukai

Toshihiko Yano

A compound of the formula: ##STR1## wherein R.sub.1 is a hydrogen atom, a lower alkyl group or a halo(lower)alkyl group, R.sub.2 and R.sub.3 are, the same or different, each a hydrogen atom, a halogen atom, a nitro group, a cyano group or an optionally substituted lower alkyl, lower alkenyl, lower alkynyl, cyclo(lower)alkyl, lower alkoxy, lower alkenyloxy, lower alkynyloxy, cyclo(lower)alkoxy, lower alkylthio, lower alkenylthio, lower alkynylthio, cyclo(lower)alkylthio, di(lower)alkylamino, lower alkylsulfonyl or lower alkylsulfinyl group, or R.sub.2 and R.sub.3 are combined together to form an optionally substituted 5- or 6-membered, saturated or unsaturated ring optionally having not more than two oxygen or sulfur atoms in the ring, R.sub.4 is a halogen atom or a lower alkyl group, R.sub.5 is a hydrogen atom or a lower alkyl group, X is an oxygen atom, a sulfur atom, a methylene group, a sulfonyl group, a sulfinyl group or an imino group and n is an integer of 1 to 4, which is useful as an insecticide and/or an acaricide.

Acaricidal and insecticidal substituted 1-phenylalkylbenzimidazoles

A dithiolphosphoric acid ester of the formula, ##STR1## wherein R is methyl or ethyl group, and when R is methyl group, A is iso-butyl, sec-butyl or tert-butyl group and B is methyl, ethyl or n-propyl group, when R is ethyl group and A is sec-butyl or tert-butyl group, B is methyl group, and when R is ethyl group and A is iso-butyl group, B is methyl, ethyl or n-propyl group, which is useful as a soil pesticidal composition for pests in soil.

Dithiolphosphoric acid esters

A trithiophosphoric acid ester of the formula: ##STR1## wherein R is lower alkyl group, and R.sub.1 and R.sub.2 are different from each other, R.sub.1 is C.sub.1 -C.sub.4 alkyl group and R.sub.2 is isobutyl, sec-butyl or tert-butyl group, which is useful as a soil pesticidal composition for pests in soil.

Trithiophosphoric acid ester as a soil pesticide

A trithiophosphoric acid ester of the formula; ##STR1## wherein R.sub.1 is methyl or ethyl group, which is useful as a soil pesticidal composition for pests in soil.

A dithiolphosphoric acid ester of the formula, ##STR1## wherein A is sec-butyl or tert-butyl group, and B is iso-propyl, n-butyl, iso-butyl, sec-butyl or tert-butyl group, which is useful as a soil pesticidal composition for pests in soil.

Growing community of inventors

Takarazuka, Japan

Haruyasu Yamamoto