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Brand:aa
Product detail:
1,Relative molecular mass:581.9
2,Two benzene ethers herbicides
3,Molecular formula:C19H15ClF3NO7
use:
Two benzene ethers herbicides, for selective before and after bud bud herbicide, used for cereal crops, corn, cotton, peanuts, tomato, rice, soybean field control broadleaf weeds.
Preparation:
3, 4-2 chlorine methyl benzene and three fluorine between hydroxyl benzoic acid reaction, get a 3-(2-chloro-4-(three fluorine methyl) benzene oxygen radicals) benzoic acid, this compounds the nitration get 5-(2-chloro-4-(three fluorine methyl) benzene oxygen radicals)-2-the nitro benzoic acid, finally and alpha chlorinated propionic acid ethyl ester in the presence of potash in dimethyl sulfoxide of reaction, namely the purpose content.
