Plant source bactericide and artificial synthesis thereof
A botanical fungicide and artificial synthesis technology, which is applied in the field of botanical pesticide preparation to achieve the effects of being suitable for large-scale industrial production, high yield and obvious killing effect.
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Embodiment 1
[0046] A plant source fungicide, the fungicide is 2,4-dicyclopentane cyclopentanone, and its molecular formula is C 15 h 20 O, the structural formula is as follows:
[0047]
[0048] Its synthetic method is: (1) in the 250ml four-neck bottle that stirrer, thermometer, reflux condenser and dropping funnel are housed, add cyclopentanone dropwise in the sodium hydroxide solution of 1mol / L, fully Stir, and then continue to add a catalyst in the reaction solution, and the catalyst is dodecyldimethylbenzylamine bromide. Heat and stir at 80°C for 1h until the reaction is complete and the reaction solution turns yellow. The molar ratio of the above-mentioned sodium hydroxide, cyclopentanone to the catalyst is 1:0.36:0.01; (2) transfer the above-mentioned reaction solution to the In the liquid funnel, discard the water layer, wash the oil layer with water repeatedly, distill under reduced pressure, collect the fraction at 300-302°C, and obtain a yellow oily liquid with a special s...
Embodiment 2
[0050] A plant source fungicide, the fungicide is 2,4-dicyclopentane cyclopentanone, and its molecular formula is C 15 h 20 O, the structural formula is as follows:
[0051]
[0052] Its artificial synthesis method is: (1) in the 250ml four-neck bottle of the dropping funnel that agitator, thermometer, reflux condenser and dropping funnel are housed, add cyclopentanone dropwise in the sodium hydroxide solution of 1mol / L, Fully stir, then continue to add catalyst in reaction liquid, described catalyst is chitosan quaternary ammonium salt. Heat and stir at 120°C for 2.5h until the reaction is complete and the reaction solution turns yellow. The molar ratio of the above sodium hydroxide, cyclopentanone to the catalyst is 1:0.43:0.01; (2) transfer the above reaction solution to In the separatory funnel, discard the water layer, wash the oil layer repeatedly with water, distill under reduced pressure, collect the fraction at 300-302°C, and obtain a yellow oily liquid with a sp...
Embodiment 3
[0054] A plant source fungicide, the fungicide is 2,4-dicyclopentane cyclopentanone, and its molecular formula is C 15 h 20 O, the structural formula is as follows:
[0055]
[0056] Its artificial synthesis method is: (1) in the 250ml four-necked bottle that agitator, thermometer, reflux condenser and dropping funnel are housed, add cyclopentanone dropwise in the sodium hydroxide solution of 1mol / L, Stir well, and then continue to add catalyst in the reaction solution, and the catalyst is tri(2-ethyl)hexylamine. Heat and stir at 80°C for 2.5h until the reaction is complete and the reaction solution turns yellow. The molar ratio of the above-mentioned sodium hydroxide, cyclopentanone to the catalyst is 1:0.40:0.01; (2) Transfer the above-mentioned reaction solution into In the separatory funnel, discard the water layer, wash the oil layer repeatedly with water, distill under reduced pressure, collect the fraction at 300-302°C, and obtain a yellow oily liquid with a specia...
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