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Forchlorfenuron sulfonate and use thereof

A technology for the use of pyripyridine sulfonate and its use, which is applied in the field of plant growth regulators in pesticides, and can solve the problems of unreported cell division activity of pyripyridine sulfonate, unsatisfactory cell division activity, and compatibility of active components, etc. , to achieve the effects of improving the safety of action and plant absorption efficiency, improving comprehensive functions, and increasing grape particles

Active Publication Date: 2015-09-23
夫木斯(黑龙江)生物技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although these compounds have high activity, they are all water-insoluble, have poor safety and are difficult to be compatible with other active ingredients.
Although the recently reported diphenylurea sulfonate (compound of formula II) is water-soluble and safe to use, its cell division activity is not ideal
In the prior art, as shown in the present invention, the sulfonate of dipyridamide (compound of formula I) and its cell division activity have not been reported

Method used

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  • Forchlorfenuron sulfonate and use thereof
  • Forchlorfenuron sulfonate and use thereof
  • Forchlorfenuron sulfonate and use thereof

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0022] Example 1, the preparation of formula I compound

[0023] (1) The preparation of difenuron sulfonic acid potassium salt

[0024] In a 250mL three-necked flask, add 24.77g (0.1mol) fenfluramide and 100mL dichloromethane respectively, add dropwise a solution consisting of 12.82g (0.11mol) chlorosulfonic acid and 30mL dichloromethane under stirring at room temperature, and dissolve it completely. Stir and react at 20-40°C for 3 hours, and use 20% KOH solution to control the temperature below 20°C to neutralize the reaction solution to about pH=7. Remove the solvent dichloromethane by rotary evaporation, dehydrate toluene under reflux until anhydrous, filter with suction, and dry to obtain a white solid, heat the obtained solid with 150mL isopropanol to dissolve, filter out insoluble matter (inorganic salt) while hot, and cool the filtrate naturally Return to room temperature, filter with suction, wash the filter cake once with an appropriate amount of isopropanol, filter ...

example 2

[0029] Example 2, the preparation of fenpyridine sulfonate aqueous solution

[0030] (1) Preparation of 2% Potassium Difenuron Sulfonate Saline Agent

[0031] Weigh 2.0 g of potassium diuretide sulfonate, add 93 g of tap water, stir and dissolve to a transparent solution, then add 5 g of Tween-80, and stir evenly to obtain 2% potassium diuretide sulfonate salt solution.

[0032] (2) Preparation of 5% tributyramide sodium sulfonate saline solution

[0033] Weigh 5.0g of pyripuron sulfonate sodium salt, add 90g of tap water, stir to dissolve, then add 5gNP-10 (nonylphenol polyoxyethylene ether), stir and dissolve until clear and transparent to obtain 5% pyripuron sulfonate sodium brine agent.

[0034] (3) Preparation of 10% ammonium sulfonate saline solution

[0035] Weigh 10 g of ammonium tributuron sulfonate, add 80 g of tap water, stir and dissolve to a transparent solution, then add 10 g of alkyl glucoside, and stir evenly to obtain 10% ammonium dipyridouron sulfonate sal...

example 3

[0037] Example 3, cucumber cotyledon expansion test

[0038] The cucumber variety to be tested was Jinyan No. 4. After soaking the seeds, they were sown in an enamel dish with a cover filled with 0.7% agar, and cultured in a dark environment at 26°C for 72 hours. The cotyledons with uniform size were selected for use. The filter paper disc method in the determination of hormone active substances.

[0039] The specific method is: prepare the sulfonate salt of the compound of the formula I and the potassium salt of the compound of the formula II according to the method (1) of Example 2 to prepare 2% potassium salt of the sulfonate of the compound of the formula I, and then use distilled water to prepare 100 μg·mL -1 , 10μg·mL -1 aqueous solution. Dissolve fenflufenuron in an appropriate amount of ethanol, add water and 5% Tween-80 to prepare 0.5% EC, and then dilute to 100 μg·mL with distilled water -1 , 10μg·mL -1 solution. Take 0.3mL of each mother solution and drop evenl...

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Abstract

The invention discloses a forchlorfenuron sulfonate with a structure shown as formula I and a use thereof as a plant growth regulator. In the formula as shown in the specification, M is selected from K, Na or NH4. Cucumber cotyledon distention experiments and peanut growing development experiments indicate that the compound of formula I obviously promotes cell division and can effectively regulate and control plant growth. The compound of formula I as a cytokinin has the advantages of being high in activity, soluble in water, unlikely to cause phytotoxicity, low in cost and low in residue.

Description

technical field [0001] The invention belongs to the field of plant growth regulators in pesticides, and in particular relates to a dipyridamole sulfonate and its application. Background technique [0002] Cytokinins are an important type of plant growth regulators, which can promote cell division, increase yield and improve quality, and enhance crop stress resistance. The currently commercialized cytokinins include 6-benzylaminopurine, pyripuron (CPPU), N-(4-pyridyl)-N'-phenylurea (4-PU), and thiadizuron. Its physiological activity is higher than that of general purine-type cytokinins (its biological activity is 10 times higher than that of 6-benzylaminopurine). -100 times), has the effects of promoting cell division, cell expansion, accelerating fruit thinning and defoliation, and delaying plant senescence (Gao Jinshan et al., Research Progress of Cytokinin CPPU, Pesticides, 2006, 45 (3): 151-154) Although these compounds are highly active, they are all water-insoluble, p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07D213/75A01N47/36A01P21/00
CPCA01N47/36C07D213/75
Inventor 王明慧许良忠张画轻史守敬李焕鹏袁建坡
Owner 夫木斯(黑龙江)生物技术有限公司
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