- HERBICIDAL COMPOSITIONS
-
The present invention provides compositions comprising herbicidally active compounds (A) and (B), where (A) represents one or more compounds of the general formula (I) or agrochemically compatible salts thereof [component (A)], and (B) represents one or more herbicides [component (B)]. The application further relates to a method and to the use of the herbicidal composition according to the invention for controlling harmful plants or for regulating growth.
- -
-
-
- Imazapyr acid intermediate as well as preparation method and application thereof
-
The invention discloses an imazapyr acid intermediate as well as a preparation method and application thereof. The imazapyr acid intermediate is obtained by taking pyridinyl-2,3-dicarboxylic acid diethyl ester and 2-amino-2,3-dimethylbutanamide as raw materials through an amine ester exchange reaction under the action of a metal catalyst. The imazapyr acid intermediate is further subjected to a ring closing reaction with an alkaline water solution, acidification is conducted by adding an acid to obtain imazapyr acid. The method is high in reaction speed, high in product purity, high in yield,mild in reaction condition, less in three wastes and extensive in synthesis process, optimizes the reaction condition and reduces the equipment cost of the reaction, also the produced product is easyto separate, and the production process is simplified.
- -
-
Paragraph 0029-0048
(2021/01/11)
-
- Synthesis method of imazapyracid
-
The invention relates to a synthesis method of imazapyracid, relates to a preparation method of a compound, and in particular, relates to a production and synthesis method of imazapyracid; the methodis characterized by comprising the steps: taking quinolinic acid as a raw material and reacting with acetic anhydride to generate 2,3-pyridine dicarboxylic anhydride; and under a low-temperature condition, continuously reacting with alcohol to generate a compound represented by a structural formula (I), carrying out a ring closing reaction with 2-amino-2,3-dimethylbutyramide under an alkaline condition, extracting to adjust the pH value, and thus obtaining the imazapyracid product. The method has the advantages that a novel method for obtaining imazapyracid is provided, the route reaction speed is high, the product purity is extremely high, the yield is high, the reaction conditions are mild, isomers are avoided, catalysts are not needed, three wastes are few, the synthesis process is extensive, the reaction conditions are optimized, the reaction equipment cost is reduced, generated products are easy to separate, and the production process is simplified.
- -
-
-
- NOVEL CRYSTALLINE FORM OF IMAZAPYR, ITS PREPARATION AND USE
-
Provided is a crystalline form of imazapyr of formula (I), the crystal preparation process, the analyses of the crystal through various analytical methods and using the crystal to prepare the stable agrochemical for mulation. The use of various solvents towards the crystalline form preparation conditions is also provided.
- -
-
Page/Page column 11
(2017/05/17)
-
- Method for Controlling Rust Infections in Leguminous Plants
-
Method for controlling rust infections in leguminous plants by using heterocyclylcarboxanilides of the formula I where n=0-4; X=C1-C4-haloalkyl; Het=a pyrazole, thiazole or pyridine radical of the formula IIa, IIb or IIc where R1 is C1-C4-alkyl or C1-C4-haloalkyl, R2 is H or halogen, R3 is C1-C4-alkyl or C1-C4-haloalkyl, R4 is C1-C4-alkyl or C1-C4-haloalkyl and R5 is halogen, C1-C4-alkyl, C1-C4-haloalkyl, C1-C4-alkoxy, C1-C4-alkylthio, C1-C4-alkylsulfinyl or C1-C4-alkylsulfonyl, mixtures of heterocyclylcarboxanilides of the formula I and a fungicidally active compound II from the group of the azoles, acylalanines, amine derivatives, anilinopyrimidines, dicarboximides, dithiocarbamates, heterocylic compounds, phenylpyrroles, cinnamides, and analogs, or other fungicides according to the description, and also compositions and seed comprising these mixtures.
- -
-
-
- Synergistic herbicidal methods and compositions
-
The present invention provides a method for synergistic broad spectrum weed control which comprises applying to the weeds or their locus a synergistically effective amount of a combination of an imidazolinone herbicide plus (4-chloro-2-methylphenoxy)acetic acid (MCPA). Further provided are synergistic herbicidal compositions comprising an imidazolinone herbicide plus MCPA.
- -
-
-
- Herbicidal composition
-
The present invention relates to a herbicidal composition, comprising A) one or more compounds of the formula (I) 1in which Hal1 and Hal2 are identical or different halogen atoms, R1 is H, a cation or a C1-C20-carbon-containing radical and B) one or more surfactants, comprising as structural element at least 12 alkylene oxide units.
- -
-
-
- Substituted (hetero) aryl compounds, process for their preparation, agents containing them and their use as safeners
-
Substituted (hetero)aryl compounds, process for their preparation, agents containing them, and their use as safeners Compounds of the formula I and their salts, as defined in claim 1, are suitable as safeners for protecting crop plants against the phytotoxic side-effects of herbicides.
- -
-
-
- Mixtures of herbicides and antidotes, (hetero)-aryloxy compounds, their preparation, compositions containing them, and their use
-
The invention relates to crop protection agents which comprise an active substance combination of herbicide and safener. The herbicides are selected from the group comprising the ALS inhibitors (ALS=acetolactate synthase) such as sulfonylureas, imidazolines, triazolopyrimidinesulfonamides, pyrimidyloxypyridinecarboxylic acid derivatives and pyrimidyloxybenzoic acid derivatives. The safeners are compounds of the formula I STR1 which are as defined in claim 1, where Z and Y are N or CH, it being possible for H to be replaced by X, X is H, Hal, haloalkyl or -alkoxy, alkyl, alkoxy, alkylthio, NO2, NH2, CN, alkylsulfonyl, A is alkylene or alkenylene, B is carboxyl or a derivative of the carboxyl group. The mixtures are mainly suitable for controlling harmful plants in the crops maize and cereals.
- -
-
-
- Super-spreading, low-foam surfactant for agricultural spray mixtures
-
Methods for preparing and applying agricultural sprays without undue foaming of the spray mixture employ a superspread-promoting, low foaming trisiloxane surfactant. Agricultural spray mixtures with super-spread properties, but limited foaming, comprise (A) a superspreading, low foaming trisiloxane surfactant and (B) an agricultural chemical spray mixture comprising water, an agricultural chemical (e.g., a pesticide), and optionally an organic surfactant, antifoam agent, and an organic solvent.
- -
-
-
- Novel 2-carbamoylnicotinic and 3-quinolinecarboxylic acids and esters
-
Novel 2-carbamoylnicotinic and 3-quinolinecarboxylic acids and esters are useful intermediate compounds for the preparation of 2-(2-imodazoline-2-yl) pyridine and quinoline herbicides.
- -
-
-
- Process for the preparation of 2-(imidazolin-2-yl)-3-pyridine- and -3-quinolinecarboxylic acids
-
There is disclosed a process for the preparation of 2-(imidazolin-2-yl)-3-pyridine and -3-quinolinecarboxylic acids of formula STR1 wherein R1 is hydrogen or C1 -C4 alkyl, R2 is hydrogen, halogen, C1 -C4 alkyl, C1 -C4 hydroxyalkyl, C1 -C4 alkoxy, phenyl or phenyl-C1 -C4 alkyl, or phenyl or phenyl-C1 -C4 -alkyl, each substituted by one C1 -C4 alkyl, C1 -C4 alkoxy or halogen, R3 is hydrogen, C1 -C4 alkyl, phenyl, phenyl-C1 -C4 -alkyl, or phenyl or phenyl-C1 -C4 -alkyl, each substituted by one C1 -C4 alkyl, C1 -C4 alkoxy or halogen, R2 and R3 together are 1,3-butadienylene which can be substituted by halogen, C1 -C4 alkyl, C1 -C4 alkoxy, C1 -C4 haloalkyl, C1 -C4 alkylsulfonyl, nitro, cyano, phenyl, phenoxy, or phenyl or phenoxy, each substituted by one C1 -C4 alkyl, C1 -C4 alkoxy or halogen, and R4 and R5 are each independently of the other C1 -C4 alkyl. In this process, the 2-(imidazolin-2-yl)-3-pyridine- and -3-quinolinecarboxylic acids of the above formula are obtained by reacting a 2,3-pyridine- or 2,3-quinolinedidicarboxylic acid ester of formula STR2 wherein R1, and R2 and R3 are as defined above and R6 is C1 -C8 alkyl, phenyl or C1 -C4 phenylalkyl with a 2-aminoalkanecarboxamide of formula STR3 wherein R4 and R5 are as defined above, in an inert solvent and in the presence of a strong base, direct to a salt of a 2-(imidazolin-2-yl)-3-pyridine- or -3-quinolinecarboxylic acid of the above formula, from which the free 2-(imidazolin-2-yl)-3-pyridine- or -3-quinolinecarboxylic acids of the above formula are obtained by converting said salt into an aqueous solution and adding an acid. The 2-(imidazolin-2-yl)-3-pyridine- and -3-quinolinecarboxylic acids of the above formula have herbicidal properties and can be used for controlling undesired plant growth.
- -
-
-
- Preparation of substituted and unsubstituted 2-carbamoyl nicotinic and 3-quinolinecarboxylic acids
-
The invention provides an improved process for the preparation of substituted and unsubstituted 2-carbamoyl nicotinic and 3-quinolinecarboxylic acids.
- -
-
-
- Preparation of substituted and unsubstituted 2-[(1-carbamoyl-1,2-dimethylpropyl)-carbamoyl]-3-quinolinecarboxylic, nicotinic and benzoic acids
-
A method for the preparation of substituted and unsubstituted 2-[(1-carbamoyl-1,2-dimethyl-propyl) carbamoyl]-3-quinolinecarboxylic, nicotinic and benzoic acids.
- -
-
-
- Process for the preparation of herbicidal 2-(4,4-disubstituted-5-oxo-2-imidazolin-2-yl)benzoic, nicotinic and quinoline-3-carboxylic acids, esters and salts
-
The present invention provides a process for the preparation of herbicidal 2-(4,4-disubstituted-5-oxo-2-imidazolin-2-yl) benzoic, nicotinic and quinoline-3-carboxylic acids, esters and salts.
- -
-
-
- 2-(2-imidazolin-2-yl)-pyridines and quinolines, process and intermediates for the preparation thereof, and use of said compounds as herbicidal agents
-
There are provided novel 2-(2-imidazolin-2-yl)pyridine and quinoline compounds, a process and intermediate compounds for the preparation thereof, and a method for controlling a wide variety of annual and perennial plant species therewith.
- -
-
-
- Process for the preparation of 2-(5,5-disubstituted-4-oxo-2-imidazolin-2-yl)nicotinic acids and quinoline-3-carboxylic acids
-
A novel process for the preparation of 2-(5,5-disubstituted-4-oxoor thiono)-2-imidazolin-2-yl)nicotinic acids, quinoline-3-carboxylic acids and benzoic acids by the base-catalyzed cyclization of appropriately substituted 2-carbamoyl nicotinic acids, 3-quinolinecarboxylic, or benzoic acids. The products are useful as herbicides.
- -
-
-
- Preparation of substituted and unsubstituted 2-carbamoyl nicotinic and 3-quinolinecarboxylic acids
-
The invention provides a process for the preparation of substituted and unsubstituted 2-carbamoyl nicotinic and 3-quinolinecarboxylic acids.
- -
-
-
- Process for the preparation of pyridyl and quinolyl imidazolinones
-
There is provided a novel process for the preparation of pyridyl and quinolyl imidazolinones.
- -
-
-
- Process for increasing sugar yield in sugarcane
-
There is provided a novel method for increasing sucrose yield in sugarcane by treating sugarcane a few weeks prior to harvest with a sucrose yield enhancing amount of a 2-(2-imidazolin-2-yl)pyridine compound.
- -
-
-