[EN] A PROCESS FOR PREPARATION OF 3-[5-(DIFLUOROMETHOXY)-1- METHYL-3-(TRIFLUOROMETHYL)PYRAZOL-4- YLMETHYLSULFONYL]-4,5-DIHYDRO-5,5-DIMETHYL-1,2-OXAZOLE AND ITS INTERMEDIATES [FR] PROCÉDÉ DE PRÉPARATION DE 3-[5-(DIFLUOROMÉTHOXY)-1-MÉTHYL-3-(TRIFLUOROMÉTHYL)PYRAZOL-4-YLMÉTHYLSULFONYL]-4,5-DIHYDRO-5,5-DIMÉTHYL-1,2-OXAZOLE ET DE SES INTERMÉDIAIRES
摘要:
The present invention relates to a process for preparation of 3-[5- (difluoromethoxy)-1-methyl-3-(trifluoromethyl)pyrazol-4-ylmethylsulfonyl]-4,5- dihydro-5,5-dimethyl-1,2-oxazole and its intermediates. The present invention provides a process for preparation of 3-({[5-fluoro-1-methyl-3-(trifluoromethyl)- 1H-pyrazol-4-yl]methyl}sulfanyl)-5,5-dimethyl-4,5-dihydro-1,2-oxazole and 3- ({[5-(difluoromethoxy)-1-methyl-3-(trifluoromethyl)-1H-pyrazol-4- yl]methyl}sulfanyl)-5,5-dimethyl-4,5-dihydro-1,2-oxazole in the absence of N,N- dimethyl formamide.
A herbicidal composition which comprises i) an isoxazoline derivative represented by the following general formula (I) or its salt and ii) at least one compound selected from the Group A:
Formula (I)
wherein R
1
, R
2
, R
3
, R
4
, R
5
and R
6
are defined in the specification.
Isoxazoline derivative and herbicide comprising the same as active ingredient
申请人:——
公开号:US20040110749A1
公开(公告)日:2004-06-10
An isoxazoline derivative represented by the following general formula [I]:
1
wherein R
1
and R
2
may be the same or different and are each an alkyl group;
R
3
, R
4
, R
5
and R
6
are each a hydrogen atom;
Y is an optionally substituted 5- to 6-membered aromatic heterocyclic group or fused aromatic heterocyclic group having a hetero atom selected from a nitrogen atom, a oxygen atom and a sulfur atom; and
n is an integer: of 0 to 2.
The isoxazoline derivative has an excellent herbicidal effect and an excellent selectivity between crop and weed.
Pyrazole derivatives and process for the production thereof
申请人:Nakatani Masao
公开号:US20050215797A1
公开(公告)日:2005-09-29
The present invention provides pyrazole derivatives useful as production intermediates for isoxazoline derivatives having an excellent herbicidal effect and selectivity between crops and weeds as well as processes for producing the same.
The pyrazole derivatives or pharmaceutically acceptable salts thereof which are inventive compounds are represented by the general formula [I] or a salt thereof:
wherein R
1
represents a C1 to C6 alkyl group, R
2
represents a C1 to C3 haloalkyl group, R
3
represents a hydrogen atom, a C1 to C3 alkyl group which may be substituted with one or more substituents selected from the following substituent group α, or a formyl group, R
4
represents a hydrogen atom or a C1 to C3 haloalkyl group, provided that R
4
represents a C1 to C3 haloalkyl group in the case that R
3
is a hydrogen or a formyl group, and R
4
is a hydrogen group or a C1 to C3 haloalkyl group in the case that R
3
is a C1 to C3 alkyl group which may be substituted with one or more substituents selected from the following substituent group α.