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N-(1-halogenoalkoxy-2,2,2-trichloroethyl)-salicylamide derivative and agricultural and horticultural fungicide containing said derivative

阅读:169发布:2023-10-28

专利汇可以提供N-(1-halogenoalkoxy-2,2,2-trichloroethyl)-salicylamide derivative and agricultural and horticultural fungicide containing said derivative专利检索,专利查询,专利分析的服务。并且NEW MATERIAL:The compound of formula I (X is Br, Cl or I; n is 2W4; R is H, acetyl, propionyl, butyryl, etc.).
EXAMPLE: N-(1-β-Chloroethoxy-2,2,2-trichloroethyl)-0-acetylsalicylamide.
USE: An agricultural and horticultural fungicide. It exhibitis broad antifungal spectrum against phytopathogenic fungi, and is effective for the control of blights such as late blight of tomato, brown rust of wheat, grey mold of kidney beans, etc. Especially, the agent exhibits high fungicidal activity at a low concentration to the fungi of grey mold which is a main blight of vegetables and fruit trees.
PROCESS: The compound of formula I wherein R is acetyl can be prepared by reacting the compound of formula II (R is acetyl) with equimolar amount of an alkylene halohydrin in an organic solvent such as acetone in the presence of equimolar amount of triethylamine. The obtained product is heated and refluxed in a solvent such as methanol in the presence of a small amount of concentrated hydrochloric acid to obtain another compound of formula I wherein R is H.
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