A kind of wood preservative and its application
A technology of wood preservatives and wood preservatives, applied in the field of agriculture, can solve problems such as decay
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Embodiment 1
[0018] Example 1 Synthesis of Compound A-1:
[0019]
[0020] Synthesis of Intermediate 1:
[0021] In a 500 ml three-necked flask, under nitrogen protection, 15.04 g (0.16 mol) of acetamidine hydrochloride and 5 g (0.0387 mol) of potassium tricyanomethane were added, and the temperature was raised to 190° C. for 12 hours, and then 40 ml of N , N-dimethylacetamide, followed by reaction at 180°C for 24 hours. Cool down to room temperature, add 100 ml of water, stir, and filter to obtain a solid. The obtained solid was added to 50 ml of 5% sodium bicarbonate solution, stirred for 1 hour, and filtered. The obtained solid was added to 50 ml of ethanol, stirred for 1 hour, and filtered. After the obtained solid was dried, it was added to a Soxhlet extractor and extracted with ethyl acetate for 24 hours. The white solid in the extraction bottle was filtered and dried to obtain 2.6 g of the compound shown in Intermediate 1 with a yield of 21.54%.
[0022] Mass spectrometry was...
Embodiment 2
[0027] Synthesis of Embodiment 2 Compound A-2~Compound A-14
[0028] With reference to the synthesis of compound A-1, only the acetamidine hydrochloride was replaced with the corresponding amidine hydrochloride as required, and the sodium hydroxide solution was replaced with potassium hydroxide solution as required to synthesize compound A-2 ~Compound A-14.
[0029] Elemental analysis was carried out to the synthesized compound, and the results are shown in the following table:
[0030]
Embodiment 3
[0031] The preparation of embodiment 3 wood preservatives
[0032] The preparation method of the wood preservative of the present invention is as follows, 2 to 10 parts of the compound shown in formula A, 0 to 10 parts of quaternary ammonium salt, 0 to 30 parts of cyproconazole, 0 to 20 parts of n-butanol, and 40 parts of absolute ethanol -80 parts were added to the reaction kettle, heated to reflux for 2 hours, then lowered to room temperature, slowly added water to a total of 100 parts, and stirred evenly.
[0033] The said part is the proportion calculated by weight of each component in every hundred parts of wood preservative, for example as follows:
[0034] Add 2-10kg of the compound shown in formula A, 0-10kg of quaternary ammonium salt, 0-30kg of cyproconazole, 0-20kg of n-butanol, and 40-80kg of absolute ethanol into the reaction kettle, heat to reflux for 2 hours , then down to room temperature, slowly add water to a total weight of 100kg, and stir evenly.
[0035]...
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