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Perhydroimidazothiazole derivative and agricultural horticultural fungicides comprising it

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专利汇可以提供Perhydroimidazothiazole derivative and agricultural horticultural fungicides comprising it专利检索,专利查询,专利分析的服务。并且NEW MATERIAL:A compound of formula I (R
1 is H or lower alkyl group; R
2 is H, 1W10C alkyl, or phenyl group; R
3 is H or methyl group; X is O or S; n is 0, 1 or 2).
EXAMPLE: 5-(3, 5-Dichlorophenyl) perhydroimidazo [1, 5-c] thiazole -4, 6-dione.
USE: Agricultural and horticultural fungicides having powerful fungicidal effects on plant blight, particularly gray mold and sclerotinia rot, and blast of rice plants, with low toxicity.
PROCESS: A compound of formula II (R is H or methyl group) is reacted with a compound of formula III, and if necessary, treated with an acid to give a compound of formula A, which is dehydrated and cyclized in the presence of an acid at 80W150°C to form a compound of formula I
a . The compound of formula I (n=o) is oxidized with peracetic acid, etc. to form the compound of formula I: (n is 1 or 2).
COPYRIGHT: (C)1979,JPO&Japio,下面是Perhydroimidazothiazole derivative and agricultural horticultural fungicides comprising it专利的具体信息内容。

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