Bactericidal composition containing isotianil and Xinjunan acetate
A technology of octocalid acetate and isotianil, which is applied in the field of pesticides and can solve problems such as affecting rice yield, general bactericidal effect, and rising rice planting costs
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Embodiment 1
[0031] The present embodiment is a kind of bactericidal auxiliary agent, and the preparation method of bactericidal auxiliary agent is as follows:
[0032] S1: Add p-xylene to a three-necked flask equipped with a magnetic stirrer, a thermometer, a condensing reflux pipe, and a chlorine gas conduit, and place the three-necked flask in a constant temperature oil bath. Under the condition of 25W ultraviolet light, feed chlorine gas into the three-necked flask to react for 35h. Go out, obtain intermediate 1; The addition of control dimethylbenzene is 1mol, and the chlorine gas flow rate is 6.0L / h;
[0033] S2: Add carbon tetrachloride to a three-necked flask equipped with a magnetic stirrer and a thermometer, then mix intermediate 1 and terephthalic acid and add it to carbon tetrachloride, under the condition of stirring at 400r / min Stir until it is completely dissolved, then add the catalyst, and continue to stir the reaction for 4 hours at a temperature of 110°C. After the reac...
Embodiment 2
[0037] The present embodiment is a kind of bactericidal auxiliary agent, and the preparation method of bactericidal auxiliary agent is as follows:
[0038] S1: Add p-xylene to a three-necked flask equipped with a magnetic stirrer, a thermometer, a condensing reflux pipe, and a chlorine gas conduit. Under the condition of 25W ultraviolet light, chlorine gas was passed into the three-necked flask to react for 37h while the 25W ultraviolet light was shining. Go out, obtain intermediate 1; The addition of control xylene is 1mol, and the flow rate of chlorine is 6.5L / h;
[0039] S2: Add carbon tetrachloride to a three-necked flask equipped with a magnetic stirrer and a thermometer, then mix intermediate 1 and terephthalic acid and add it to carbon tetrachloride, under the condition of stirring at 500r / min Stir until it is completely dissolved, then add the catalyst, and continue to stir the reaction for 4.5 hours at a temperature of 120°C. After the reaction is completed, the reac...
Embodiment 3
[0043] The present embodiment is a kind of bactericidal auxiliary agent, and the preparation method of bactericidal auxiliary agent is as follows:
[0044] S1: Add p-xylene to a three-necked flask equipped with a magnetic stirrer, a thermometer, a condensing reflux pipe, and a chlorine gas conduit. Under the condition of 25W ultraviolet light, chlorine gas was passed into the three-necked flask to react for 40h. Go out thing, obtain intermediate 1; The addition of control xylene is 1mol, and chlorine gas flow rate is 7.0L / h;
[0045] S2: Add carbon tetrachloride to a three-necked flask equipped with a magnetic stirrer and a thermometer, then mix intermediate 1 and terephthalic acid and add it to carbon tetrachloride, under the condition of stirring at 600r / min Stir until it is completely dissolved, then add the catalyst, and continue to stir the reaction for 5 hours at a temperature of 130°C. After the reaction is completed, the reaction product is subjected to rotary evapora...
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