申请人:SUMITOMO CHEMICAL COMPANY, LIMITED
公开号:US20150299156A1
公开(公告)日:2015-10-22
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)
2
; R
1
represents a hydrogen atom or a methyl group; R
2
and R
3
represents a hydrogen atom, an C
1-6
alkyl group and the like; when X represents S, S(O) or S(O)
2
, R
4
represents an C
1-6
alkyl group, a C
1-6
haloalkyl group, an C
6-10
aryl group or a five- to six-membered heteroaryl group, and X represents O, S, S(O) or S(O)
2
, R
4
represents an C
6-10
aryl 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 C
1-6
alkyl group and the like; is useful as an active ingredient for herbicides.
本发明提供了一种具有优异除草效果的化合物。该化合物为式(I)的二氢吡酮化合物:其中m为1、2或3;n为1至5的任一整数;X代表O、S、S(O)或S(O)2;R1代表氢原子或甲基基团;R2和R3代表氢原子、C1-6烷基基团等;当X代表S、S(O)或S(O)2时,R4代表C1-6烷基基团、C1-6卤代烷基基团、C6-10芳基基团或五元至六元杂环芳基基团,当X代表O、S、S(O)或S(O)2时,R4代表C6-10芳基基团或五元至六元杂环芳基基团;G代表氢原子等;Z代表卤原子、氰基、硝基、苯基、C1-6烷基基团等。该化合物可用作除草剂的活性成分。