[EN] HERBICIDALLY ACTIVE 2-HALOGEN-4-ALKYNYL- PHENYL-PYRAZOLIDINE-DIONE OR PYRROLIDINE-DIONE DERIVATIVES<br/>[FR] DÉRIVÉS DE 2-HALOGÉNO-4-ALCYNYLPHÉNYLPYRAZOLIDINEDIONE OU DE PYRROLIDINEDIONE À ACTIVITÉ HERBICIDE
申请人:SYNGENTA LTD
公开号:WO2015032702A1
公开(公告)日:2015-03-12
Herbicidally active pyrazolidine-dione or pyrrolidine-dione compounds or derivatives thereof The present invention relates to a compoundof formula (I): wherein CKE is of sub-formula (A) and/or (B): wherein: R1 is fluorine or chlorine; R 2 is hydrogen, methyl, ethyl, n-propyl, cyclopropyl, ethynyl, cyano, fluorine, chlorine, bromine, C 1-C 3 alkoxy, C1 -C 2 fluoroalkoxy, C1 -C 2 alkoxy-C1 -C 3 alkoxy-, or C1 fluoroalkoxy-C1 -C 3 alkoxy-; and X is NR 4 or CR5 R 6; wherein R 3, R 4, R5 and R 6 are as defined herein; wherein the compound of formula (I) is optionally present as an agrochemically acceptable salt thereof. These compounds are suitable for use as herbicides. The invention therefore also relates to a method of controlling weeds, especially grassy monocotyledonous weeds, in crops of useful plants, comprising applying a compound of formula (I), or a herbicidal composition comprising such a compound, to the plants or to the locus thereof.
METHOD FOR PREPARING 2-ARYL MALONAMIDE AND APPLICATIONS THEREOF
申请人:ORIENTAL(LUZHOU) AGROCHEMICALS. CO., LTD.
公开号:US20200024220A1
公开(公告)日:2020-01-23
Disclosed are a method for preparing 2-aryl malonamide and an application thereof. This method uses 2-(cyclohexenylidene) malononitrile as a raw material, which undergoes an aromatization-hydrolyzation reaction in the presence of an oxidant and water to produce 2-aryl malonamide by one step. Compared to the prior art, the method for preparing 2-aryl malonamide of this application has the following features and advantages: (1) this method employs a completely different synthetic strategy; (2) raw materials used in this method are easily obtained; (3) this method not only has high yield, but also does not require expensive metal catalysts. This method is lower-cost, suitable for the industrial production.
[EN] NOVEL PROCESS FOR PREPARATION OF KEY INTERMEDIATE OF PINOXADEN<br/>[FR] NOUVEAU PROCÉDÉ DE PRÉPARATION D'UN INTERMÉDIAIRE CLÉ DE PINOXADEN
申请人:BHAGIRADHA CHEMICALS & INDUSTRIES LTD
公开号:WO2020201974A1
公开(公告)日:2020-10-08
The present invention relates to a novel process for preparation of compounds of formula (I) used in the synthesis of Pinoxaden. The intermediate is a substituted phenyl malonic esters of formula (I), where R is C1-C4 alkyl, straight or branched chain.