Home > News > Content
Flutriafol Preparation Or Source
Aug 31, 2017

Smectazol is a chemical substance with a molecular weight of C16H13F2N3O.

Fenzolol is a broad spectrum of internal fungicide, the Basidiomycetes and Ascomycetes caused by a variety of diseases have a good protection and treatment, can effectively control wheat crop powdery mildew, rust, smut, corn Smut and so on.

Preparation or source: anhydrous potassium fluoride and 2,3,4,5-tetrachloronitrobenzene in anhydrous dimethylformamide at 140 ° C for 15 hours to produce 2,4-difluoro-3,5 -dichloronitrobenzene, followed by reduction reaction with iron powder at 95 to 100 ° C for 8 hours in acetic acid to give 2,4-difluoro-3,5-dichloroaniline. 2,6-difluorobenzamide was reacted with oxalyl chloride in toluene for 5 hours to give 2,6-difluorobenzoyl isocyanate, followed by treatment with the above-mentioned 2,4-difluoro-3,5-dichloro Aniline was reacted in toluene at room temperature for 15 hours to obtain a product.

Streptozotocin is a triazole fungicide, the disease has a protective and therapeutic effect on the powdery mildew spores have the role of eradication, spraying 5 to 10 days, the original formation of the lesion can disappear, the strong absorption, can be crops Root, stem and leaf absorption, the absorption capacity of the root is greater than the stem, leaves, into the plant within the drug from the vascular bundle upward transfer to the top of the leaves, but not in the phloem for lateral or base conduction. The product is 12.5%, 250 g / l suspending agent, 50% wettable powder. Smectazol is mainly used for the prevention and control of wheat diseases, spray or seed treatment. (1) seed dressing against wheat smut, per 100 kilograms of seeds with 12. 5% of the suspension 200 ~ 300 ml \ corn smut, per 100 kilograms of seeds with 320 to 480 ml. Seed dressing, the first medicine into the pulp, the amount of pulp for the seed amount of 1.5%, mix well after planting. (2) spray in the rusty period, mu with 50% wettable powder 8 to 12 grams or 250 grams / liter of suspending agent 16 to 24 ml; for powdery mildew, in the flag leaf sporadic onset to the disease rise, or the upper 3 Leaf incidence rate of 30% to 50%, mu with 12.5% suspending agent 35 to 60 grams of water spray.