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Aminoethyl-substituted pyrazole derivative and its preparation

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专利汇可以提供Aminoethyl-substituted pyrazole derivative and its preparation专利检索,专利查询,专利分析的服务。并且NEW MATERIAL:The compound of formula I [R
1 is H, alkyl, phenyl, naphthyl, or pyridyl; the group of formula II is at the 3- or 5-position of the pyrozole ring; R
2 and R
3 are alkyl, benzyl, or together with the bonded N-atom form a 5W7-membered ring of formula III (m and n are 1W3; X is O, CH
2 or NH)], and its acid addition salt.
EXAMPLE: 3-[2-(N,N-Diethylamino)ethyl]-1-phenylpyrazole.
USE: Agricultural and horticultural fungicide having excellent antifungal activity against rice blast, and high antifungal activity against various plant pathogens such as those causing helminthosporium leaf spot of rice plant, powdery mildew of cucumber, gray mold of kidney bean, etc.
PROCESS: The compound of formula I is prepared by reacting the enyne compound of formula IV (R
4 is alkyl) with the hydrazine compound of formula R
1 NHNH
2 in the presence of an acid or an alkali.
COPYRIGHT: (C)1982,JPO&Japio,下面是Aminoethyl-substituted pyrazole derivative and its preparation专利的具体信息内容。

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