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High-solubility plant growth regulator and preparation method thereof

A plant growth regulator, high solubility technology, applied in the direction of plant growth regulators, plant growth regulators, botany equipment and methods, etc., can solve problems such as not easy to dissolve, waste of drugs, substandard paclobutrazol content, etc., to achieve High solubility value, reduction possibility, stable and controllable effect of drug effect

Inactive Publication Date: 2018-12-14
王新民
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Studies have found that the solubility of paclobutrazol in water at 25°C is lower than 0.01mg / ml, and it is not easy to dissolve during spraying, and part of it precipitates at the bottom of the water, which not only wastes drugs but also fails to reach the pre-designed content, resulting in the dissolved paclobutrazol The content is not up to standard

Method used

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  • High-solubility plant growth regulator and preparation method thereof
  • High-solubility plant growth regulator and preparation method thereof
  • High-solubility plant growth regulator and preparation method thereof

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Experimental program
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Effect test

Embodiment 1

[0029] Embodiment 1: a kind of high solubility plant growth regulator, it is prepared by the following method:

[0030] (1) Formation of paclobutrazol solution: get paclobutrazol, add acetonitrile, ultrasonically dissolve, obtain paclobutrazol solution; by mass, the consumption ratio of paclobutrazol and acetonitrile is 1: 4;

[0031] (2) Formation of nicotinamide solution: take nicotinamide, add water, and ultrasonically disperse to obtain nicotinamide aqueous solution; by mass, the dosage ratio of nicotinamide and water is 1:12;

[0032] (3) Formation of paclobutrazol nicotinamide co-crystal: Add nicotinamide aqueous solution dropwise to paclobutrazol solution, stir and react at room temperature, first precipitate solid and dissolve again, filter after reacting for 1.5r to get the filtrate, mix the filtrate and diethyl ether to obtain a mixed solution, mix The solution was evaporated at 40°C to remove the solvent to obtain paclobutrazol-nicotinamide co-crystals; the mole rat...

Embodiment 2

[0033] Embodiment 2: a kind of high solubility plant growth regulator, it is prepared by the following method:

[0034] (1) Formation of paclobutrazol solution: get paclobutrazol, add acetone, ultrasonically dissolve, obtain paclobutrazol solution; by mass, the consumption ratio of paclobutrazol and acetone is 1: 5;

[0035] (2) Formation of nicotinamide solution: take nicotinamide, add water, and ultrasonically disperse to obtain nicotinamide aqueous solution; by mass, the dosage ratio of nicotinamide and water is 1:15;

[0036] (3) Formation of paclobutrazol nicotinamide co-crystal: Add nicotinamide aqueous solution dropwise to paclobutrazol solution, stir and react at room temperature, first precipitate solids and then dissolve them, filter the filtrate after reacting for 2 hours, mix the filtrate and diethyl ether to obtain a mixed solution, the mixed solution The solvent was removed by rotary evaporation at 45°C to obtain the paclobutrazol nicotinamide co-crystal; the mol...

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Abstract

The invention discloses a high-solubility plant growth regulator and a preparation method thereof. The high-solubility plant growth regulator is a paclobutrazol-nicotinamide eutectic, and the paclobutrazol-nicotinamide eutectic belongs to a monoclinic system, wherein the axial length of the eutectic is: a=7.2318 angstrom, b=11.3571 angstrom, and c=16.1134, and the axial angles are: alpha=gamma=90degrees, and beta=105 degrees; and the high-solubility plant growth regulator has the advantage of improving solubility.

Description

technical field [0001] The invention relates to a high-solubility plant growth regulator and a preparation method thereof. Background technique [0002] The chemical name of paclobutrazol (Propiconazole) is (2RS, 3RS)-1-(4-chlorophenyl)-4,4-dimethyl-2-(1H-1,2,4-triazol-1-yl) Pent-3-ol, which is a triazole plant growth regulator and an inhibitor of endogenous gibberellin synthesis, has the functions of delaying plant growth, inhibiting stem elongation, shortening internodes, promoting plant tillering, and promoting flower bud differentiation. Increase plant stress resistance, increase yield and other effects. This product is suitable for rice, wheat, peanuts, fruit trees, tobacco, rapeseed, soybeans, flowers, lawns and other crops (plants), and the use effect is remarkable. [0003] Studies have found that the solubility of paclobutrazol in water at 25°C is lower than 0.01mg / ml, and it is not easy to dissolve when spraying, and part of it settles at the bottom of the water....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07D249/08A01N43/653C07D213/82A01N43/40A01P21/00
CPCA01N43/653C07B2200/13C07D213/82C07D249/08
Inventor 王新民
Owner 王新民
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