Optically active herbicidal (r)-phenoxypropionic acid-n-methyl-n-2-fluorophenyl amides
申请人:Kim Whang Dae
公开号:US20050043180A1
公开(公告)日:2005-02-24
The present invention relates to optically active herbicidal (R)-phenoxypropionic acid N-methyl-N-2-fluorophenyl amide compounds represented in the following formula (1), a method for preparing thereof, their use to prevent generation of barnyard grass produced from rice and composition as suitable herbicides, (I) wherein X is hydrogen, halogen, hydroxy, NH
2
, CO
2
H, C
1
-C
6
alkylamino substituted with 1 or 2 of C
1
-C
3
alkyl, C
1
-C
6
alkyl, C
1
-C
6
alkoxy, C
1
-C
3
haloalkyl, C
1
-C
3
haloalkoxy, C
2
-C
4
alkoxyalkoxy, C
1
-C
4
alkylthonyl, C
1
-C
4
alkylsulfonyl, C
2
-C
6
alkenyl, C
2
-C
6
alkinyl, C
2
-C
6
alkenyloxy, C
2
-C
6
alkinyloxy, C
1
-C
3
alkoxycarbonyl, or C
1
-C
3
alkylcarbonyl; is hydrogen or fluoro; and n is an integer of 0 to 2, wherein X can be a combination of other substituents when n is 2.
本发明涉及一种光学活性除草剂(R)-苯氧基丙酸N-甲基-N-2-氟苯基酰胺化合物,其表示为以下公式(1),以及其制备方法、用于防止水稻产生稗草的使用和作为适用于除草剂的组合物,其中X为氢、卤素、羟基、NH2、CO2H、1或2个C1-C3烷基取代的C1-C6烷基氨基、C1-C6烷基、C1-C6烷氧基、C1-C3卤代烷基、C1-C3卤代烷氧基、C2-C4烷氧基烷氧基、C1-C4烷基硫酰基、C2-C6烯基、C2-C6炔基、C2-C6烯氧基、C2-C6炔氧基、C1-C3烷氧羰基或C1-C3烷基羰基;为氢或氟;n为0到2的整数,当n为2时,X可以是其他取代基的组合。