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Chloropyrimidine derivative and agricultural and horticultural fungicide

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专利汇可以提供Chloropyrimidine derivative and agricultural and horticultural fungicide专利检索,专利查询,专利分析的服务。并且NEW MATERIAL:The compound of formula 4 (R
1 is 1W4C alkyl; R
2 is 1W4C alkyl, alkenyl or alkynyl).
EXAMPLE: 6-Chloro-2,4-dimethoxy-5-isopropylpyrimidine.
USE: An agricultural and horticultural fungicide exhibiting remarkable activity against the plant blights caused by oomycetes, ascomycetes, etc.
PREPARATION: The objective compound of formula 4 is prepared by reacting the malonic acid ester derivative of formula 1 with urea in ethanol in the presence of sodium ethylate to obtain the barbituric acid derivative of formula 2, refluxing the product in phosphorus oxychloride in the presence of N,N-dimethylaniline for 1W2hr, and reacting the resultant trichloropyrimidine derivative of formula 3 with 2 equivalent of R
2 ONa derived from an alcohol of formula R
2 OH and Na.
COPYRIGHT: (C)1985,JPO&Japio,下面是Chloropyrimidine derivative and agricultural and horticultural fungicide专利的具体信息内容。

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