Sumitomo Chemical Company, Limited

Hideo Kohsaka

Yukio Ishiguri

Mitsuru Sasaki

Masayuki Takase

Sasaki Mitsuru

Yoshihiko Oue

A butenoic acid derivative of the formula: ##STR1## which is useful as a herbicide.

Butenoic acid derivatives and use as herbicides

1-propargyl-2,4-dioxoimidazolidine is a very useful intermediate for synthesizing insecticidal and acaricidal compounds of pyrethroid type. Here are disclosed a method for producing 1-propargyl-2,4-dioxoimidazolidine, the starting material compounds thereof and a method for producing said starting material compounds. According to the present invention, said useful intermediate can be easily produced than before.

Propargyl amide precursor to 1-propargyl-2,4-dioxoimidazolidine

A compound of the formula: ##STR1## wherein R.sub.1 is a hydrogen atom, a lower alkyl group, a lower alkenyl group, a lower alkynyl group, a lower cycloalkyl group, a lower cycloalkyl(lower)alkyl group, a halo(lower)alkyl group, a lower alkoxy(lower)alkyl group, a di(lower)alkoxy(lower)alkyl group, a cyano(lower)alkyl group, a lower alkylthio(lower)alkyl group, a lower alkynylthio(lower)alkyl group, a lower dioxothiacycloalkyl group, a lower thiacycloalkyl group, a lower oxacycloalkyl group, a lower oxacycloalkyl(lower)alkyl group or a thienyl(lower)alkyl group, R.sub.2 is a lower alkyl group and R.sub.3 is a 3,5-dimethoxyphenyl group, a 3,4-methylenedioxyphenyl group or a 4,5-methylenedixoy-2-nitrophenyl group, which is useful as a fungicide.

Phosphoramidothionates

A fungicidal composition which comprises as an active ingredient a fungicidally effective amount of a phosphoramidothionate of the formula: ##STR1## wherein R.sub.1 is a lower alkyl group, a lower alkenyl group, a lower alkynyl group, a lower cycloalkyl group, a lower cycloalkyl(lower)alkyl group, a halogen atom-substituted lower alkyl group, a lower alkoxy(lower)alkyl group, a di(lower)alkoxy(lower)alkyl group, a cyano group-substituted lower alkyl group, a lower alkylthio(lower)alkyl group, a lower dioxothiacycloalkyl group, a lower thiacycloalkyl group, a lower oxacycloalkyl group, a furanyl(lower)alkyl group or a thiophenyl(lower)alkyl group, R.sub.2 is a lower alkyl group and R.sub.3 is a lower alkyl group or a lower alkoxy group, and an inert carrier or diluent.

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Takarazuka, Japan

Hideo Kohsaka