申请人:ARAKI KOICHI
公开号:US20090062536A1
公开(公告)日:2009-03-05
A herbicide comprising as an active ingredient a sulfonanilide compound represented by the formula:
wherein,
R1 represents CHF
2
or CH
2
CF
3
; R2 represents hydrogen, C1-3 alkyl, 3-propenyl, or 3-propynyl; R3 represents hydrogen; R4 represents hydrogen, hydroxy, or methylthio, or R3 and R4, together with a carbon atom to which they are bonded, may form C═O; R5 represents halogen or methyl; X represents methoxy or chlorine; and Z represents CH or N;
with the proviso that,
(i) when R1 represents CH
2
CF
3
, R2 represents hydrogen, R5 represents bromine or iodine, X represents methoxy, and Z represents CH,
(ii) when R1 represents CHF
2
and X represents methoxy, R5 represents bromine or iodine, Z represents N, and R2 represents C1-3 alkyl, 3-propenyl, or 3-propynyl,
(iii) when R1 represents CHF
2
and X represents chlorine, Z represents CH.
一种除草剂,其活性成分为由以下公式表示的磺酰苯胺化合物:其中,R1代表CHF2或CH2CF3; R2代表氢、C1-3烷基、3-丙烯基或3-丙炔基; R3代表氢; R4代表氢、羟基或甲硫基,或R3和R4与它们连接的碳原子一起形成C═O; R5代表卤素或甲基; X代表甲氧基或氯; Z代表CH或N; 前提是,(i) 当R1代表CH2CF3时,R2代表氢,R5代表溴或碘,X代表甲氧基,Z代表CH,(ii) 当R1代表CHF2且X代表甲氧基,R5代表溴或碘,Z代表N,R2代表C1-3烷基、3-丙烯基或3-丙炔基,(iii) 当R1代表CHF2且X代表氯,Z代表CH。