申请人:——
公开号:US20020052295A1
公开(公告)日:2002-05-02
Novel herbicidal compounds are provided having the formula (I)
1
wherein one of R
1a
and R
1b
is a methyl, hydroxymethyl or monohalomethyl group and the other is hydrogen; R
2
is a group R
3
—(X
1
)
m
— where X
1
is a methylene, oxy or thio linkage, m is 0 or 1, and R
3
is a substituted phenyl group of formula
2
where R
A
2
is a hydrogen, halogen or methyl group and R
A
3
is a halogen or halomethyl group; and R
4
is an &agr;-halo- or &agr;,&agr;-dihalo-(C
1-3
)alkyl group or a group having the formula —(X
2
)
n
—R
5
where X
2
is a methylene, oxy or thio linkage, n is 0 or 1, and R
5
is an optionally substituted five-member or six-member aromatic or heterocyclic ring.
提供了一种新的除草化合物,其化学式为(I),其中R1a和R1b中的一个是甲基、羟甲基或单卤甲基基团,另一个是氢;R2是一个基团R3—(X1)m—,其中X1是一个亚甲基、氧或硫连接,m为0或1,R3是一个取代苯基的化合物,其化学式为,其中RA2是氢、卤素或甲基基团,RA3是卤素或卤甲基基团;R4是一个α-卤代或α,α-二卤代-(C1-3)烷基基团或一个具有化学式—(X2)n—R5的基团,其中X2是一个亚甲基、氧或硫连接,n为0或1,R5是一个可选择取代的五元或六元芳香或杂环环。