Sumitomo Chemical Company, Limited

Yosuke Nakashima

Yoshinobu Jin

Masato Konobe

The present invention provides a compound having an excellent efficacy for controlling weeds. A pyrone compound of formula (I): wherein m is 1, 2 or 3; n is an integer of any one of 1 to 5; X represents O, S, S(O) or S(O); Rrepresents a hydrogen atom or a methyl group; Rand Rrepresents a hydrogen atom, an Calkyl group and the like; Rrepresents an Caryl group or a five- to six-membered heteroaryl group; G represents a hydrogen atom and the like; Z represents a halogen atom, a cyano group, a nitro group, a phenyl group, an Calkyl group and the like;is useful as an active ingredient for herbicides.

Pyrone compounds and herbicides comprising the same

The present invention provides a compound having an excellent efficacy for controlling weeds. A dihydropyrone compound of formula (I): wherein m is 1, 2 or 3; n is an integer of any one of 1 to 5; X represents O, S, S(O) or S(O); Rrepresents a hydrogen atom or a methyl group; Rand Rrepresents a hydrogen atom, an Calkyl group and the like; when X represents S, S(O) or S(O), Rrepresents an Calkyl group, a Chaloalkyl group, an Caryl group or a five- to six-membered heteroaryl group, and X represents O, S, S(O) or S(O), Rrepresents an Caryl group or a five- to six-membered heteroaryl group; G represents a hydrogen atom and the like; Z represents a halogen atom, a cyano group, a nitro group, a phenyl group, an Calkyl group and the like; is useful as an active ingredient for herbicides. 

Dihydropyrone compounds and herbicides comprising the same

The present invention provides a compound having an excellent efficacy for controlling weeds. A cyclohexanone compound of the formula (I): wherein m is an integer of 1, 2 or 3; n is an integer of any one of 1 to 5; X represents CH, O, S, S(O) or S(O); Rrepresents a hydrogen atom or a methyl group; Rand Rrepresents a hydrogen atom, a Calkyl group and the like; Rrepresents a Caryl group or a five- to six-membered heteroaryl group; G represents a hydrogen atom and the like; Z represents a halogen atom, a cyano group, a nitro group, a phenyl group, a Calkyl group and the like; is useful as an active ingredient for herbicides. 

Growing community of inventors

Tokyo, Japan

Yosuke Nakashima