2 results about "Iprodione" patented technology

The application discloses a preparation method and application of a pesticide preparation for preventing and treating watermelon fusarium wilt, and belongs to the technical field of biocidal pesticides. In the application, carbendazim, iprodione, lotus seed pod extract and seaweed residue are combined as effective components of the insecticide, and according to field experiment data, the pesticide preparation for preventing and treating watermelon fusarium wilt is applied in the soil for many years, the disease index is 7.22%, the control effect is 82.44%, the yield of single plant is 9.75 kg±0.35 kg, and the yield per mu is 2865 kg. The seaweed residue and the lotus seed pod extract are mixed as a pesticide synergist, and are compounded with the basic chemical pesticide, so that the obtained pesticide preparation has better effect in preventing and treating watermelon fusarium wilt, and the effect after combination is better than that of the basic chemical pesticide, the seaweed residue or the lotus seed pod extract used alone, and the application has practical significance for preventing and treating watermelon fusarium wilt and improving the yield of watermelon.

The application provides a kind of catalyst recyclable carboxin synthesis method, belong to organic synthesis technical field, comprising: the condensation reaction of alpha-chloroacetyl acetanilide and 2-mercaptoethanol under alkaline conditions, intermediate is obtained by separation;With toluene as solvent, the obtained intermediate is mixed with ionic liquid catalyst to form a reaction system, heating reaction, after the reaction is completed, the temperature of the reaction system is reduced to 5-25 DEG C, the reaction system is layered, then separation treatment is carried out, carboxin product and separated ionic liquid catalyst are obtained, then the separated ionic liquid catalyst is regenerated by dehydration and recycled;Wherein, the ionic liquid catalyst is 1-(polyethylene glycol monomethyl ether group)-3-(3-sulfopropyl) imidazole hydrogen sulfate salt.The reaction system has homogeneous high-efficiency conversion at high temperature and automatic separation at low temperature, which realizes the green upgrading of carboxin synthesis process.