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Organosilicon pesticide booster and preparing method thereof

A synergist and organosilicon technology, which is applied in the fields of botanical equipment and methods, biocides, animal repellents, etc., can solve problems such as yield reduction, and achieve the advantages of less side reactions, high yield and saving pesticide dosage. Effect

Inactive Publication Date: 2010-05-19
ZHANGJIAGANG JUNBO NEW MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

lead to lower yield

Method used

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  • Organosilicon pesticide booster and preparing method thereof
  • Organosilicon pesticide booster and preparing method thereof
  • Organosilicon pesticide booster and preparing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0055] Put 162g of sodium methoxide and 324g of methanol into a 3L stainless steel autoclave to completely dissolve the sodium methoxide, then add 1100g of ethylene oxide, stir at high speed, raise the temperature to 98°C, and the pressure of the autoclave is 1-2.0 atm. As the reaction progressed, the pressure gradually decreased. When the pressure drop in the kettle was 1.3 atm, the temperature was lowered to normal temperature to obtain the polyoxyethylene ether sodium salt capped with methoxy group:

[0056]

[0057] Transfer the prepared polyoxyethylene ether sodium salt to a normal-pressure reaction kettle, after steaming methanol, add 280g 2-chlorobutene-1 into the kettle, stir at high speed, heat up to reflux temperature, react for 2 hours, steam After the unreacted 2-chlorobutene-1 is released, it is decolorized and filtered to obtain terminal alkenyl polyether:

[0058]

Embodiment 2

[0060] Synthesis of terminal alkenyl copolyether

[0061] Add 54g of sodium methoxide into the autoclave, then add 120g of methanol and stir to fully dissolve it, add 420g of propylene oxide, stir at high speed, and raise the temperature to about 110°C. The pressure in the kettle rose to 1.7 atm. As the reaction proceeds, the pressure gradually decreases. When the pressure drops to 1.1-1.2 atm, drop to room temperature and then add 402 g of ethylene oxide, and raise the temperature to 105-110°C. The pressure inside the kettle is 1.8-2.0 atm. When the pressure in the kettle drops to 1.1-1.2atm, the temperature of the kettle is lowered to room temperature to obtain a methanol solution of epoxy polyether sodium salt with a methoxy head cap, and after distilling off the methanol, the following is obtained:

[0062] 780g.

[0063] Add 400 g of sodium salt of epoxy polyether with methoxy head cap into the reaction flask, then add 54 g of 2-chlorobutene-1, heat to reflux, and re...

Embodiment 3

[0066] Synthesis of Hydrosiloxane Ring Body:

[0067] Add 6000ml of petroleum ether (b·p60~90°C) and 920g of methyldichlorosilane into the reaction kettle equipped with high-efficiency reflux condenser, thermometer and stirrer. Start to stir, make the material in the kettle drop to 0°C, pass N 2 , add 500ml of distilled water dropwise, the dropping rate of distilled water is based on the control of the hydrolysis temperature not exceeding 10°C, it takes about 4 to 5 hours, and the released hydrogen chloride gas is absorbed into hydrochloric acid by falling film. 2 Speed ​​to drive away the hydrogen chloride gas, then move the reactant to the separatory funnel, separate the aqueous solution, wash the organic phase twice with 2000ml distilled water, add 5% sodium carbonate solution to neutralize, add desiccant to dry, filter, Evaporate petroleum ether in vacuo to obtain hydrogen-containing cyclic siloxane (MeHSiO) n , where trimethylcyclotrisiloxane (D 3 -H )3.2%, tetramethy...

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Abstract

The invention relates to an organic silicon pesticide booster with low surface tension, less side effect and high yield. The chemical formula of invention is as following one, wherein, Me=CH3, R1=CH3,R2=H, CH3, C4H9, -O(O)CCH3, x=0-10, y=1-20, a=5-25, b=0-15. And the preparation comprises that putting the hydrogen siloxane and polyalkenylethers into reaction kettle, protected by N2, to increase temperature and be mixed quickly; then adding some platinum-1.3-divinyl tetramethyl disilyloxy-acetylacetone as catalyst, naturally increasing temperature to 110Deg. C, making solution transparent, adding baking soda, compressing and filtering, to obtain needed organic silicon pesticide booster. The invention has wide application in variable pesticides.

Description

technical field [0001] The invention relates to an organosilicon pesticide synergist, and also relates to a preparation method thereof. Background technique [0002] As we all know, most of the pesticides currently used in the world, including herbicides, insecticides, fungicides, and plant growth regulators, have varying degrees of toxicity, and pesticide residues in agricultural products have become a worldwide public hazard. With the improvement of the resistance of agricultural pests and fungi, the use of various pesticides is required to increase, which seriously threatens human health. In order to improve the efficacy and reduce the amount of pesticides, humans have been exploring the use of various pesticides to increase The most used are organic surfactants, penetrating agents, wetting agents, etc., and since the surface tension of these organic surfactants is mostly above 25mN / m, their synergistic effect is not very obvious until the 1970s People have noticed silic...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01N55/10C08G65/48
Inventor 刘玉龙陈惠明
Owner ZHANGJIAGANG JUNBO NEW MATERIAL
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