A kind of pyridopyrazole urea sulfonate and its application
A technology of pyridopyrazole urea sulfonate and application, which is applied in the field of pyridopyrazole urea sulfonate and can solve the problem of unreported cell division activity of pyridopyrazole urea sulfonate, poor environmental friendliness and poor safety , cell division activity is not ideal and other problems, to achieve the effect of improving the safety of action and plant absorption efficiency, improving comprehensive functions, and increasing grape granules
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example 1
[0022] Example 1, the preparation of formula I compound
[0023] The pyridopyrazolone compound (formula III) was prepared by referring to the patent (patent number: ZL 2013107334583; publication number: CN 103709158B). The yield of the compound of formula III is 85-95%.
[0024] (1) Preparation of pyridopyrazole urea sulfonic acid sodium salt
[0025] In a 250mL four-neck flask, add 0.1mol of the compound of formula III and 100mL of 1,2-dichloroethane in turn, add 14g (0.12mol) of chlorosulfonic acid under ice-bath stirring, after the addition is complete, react at room temperature, pass through after about 6h The end point of the reaction was determined by thin layer chromatography (TLC). After the reaction was completed, the temperature was lowered, and the solvent and excess chlorosulfonic acid were removed by suspension evaporation to obtain pyridopyrazole urea sulfonic acid (compound IV). Add 0.1mol formula IV compound, 100mL toluene, and 10g (0.1mol) of the 40% NaOH aq...
example 2
[0030] Example 2, preparation of pyridopyrazole urea sulfonate aqueous solution
[0031] (1) Preparation of 2% potassium pyridopyrazole sulfonate salt solution
[0032] Weigh 2.0 g of potassium pyridopyrazole 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 pyridopyrazole sulfonate salt solution.
[0033] (2) Preparation of 5% pyridopyrazole urea sulfonic acid sodium salt solution
[0034] Weigh 5.0g of pyridopyrazole urea sodium salt, add 90g of tap water, stir to dissolve, then add 5g of NP-10 (nonylphenol polyoxyethylene ether), stir and dissolve until clear and transparent to obtain 5% pyridopyrazole urea Sodium Sulfonate Saline.
[0035] (3) Preparation of 10% ammonium pyridopyrazole urea sulfonate saline solution
[0036] Weigh 10 g of ammonium pyridopyrazole urea sulfonate, add 80 g of tap water, stir and dissolve to a transparent solution, then add 10 g of alkyl glycoside,...
example 3
[0038] Example 3, cucumber cotyledon expansion test
[0039] 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.
[0040] The specific method is: the sodium salt of the compound of formula I and the sodium salt of the compound of formula II are prepared into 2% water according to the method (2) of Example 2, and then diluted with distilled water to 100 μg·mL -1 , 10μg·mL -1 aqueous solution. Dissolve pyridopyrazolone and thiadiuron in DMF (N,N-dimethylformamide), add water and 5% Tween-80 to prepare 0.5% emulsifiable concentrate, and dilute with distilled water to 100 μg·mL -1 , 10μg·mL -1 solution. Take 0.3mL of each mother solution and drop evenly on a Φ6cm filter paper sheet. After the s...
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