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Otsuka Pharmaceutical Co Ltd
Original Assignee
Otsuka Pharmaceutical Co Ltd
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Filing date
Publication date
Application filed by Otsuka Pharmaceutical Co LtdfiledCriticalOtsuka Pharmaceutical Co Ltd
Priority to JP11816279ApriorityCriticalpatent/JPS5643267A/en
Publication of JPS5643267ApublicationCriticalpatent/JPS5643267A/en
Publication of JPS6237626B2publicationCriticalpatent/JPS6237626B2/ja
USE: Fungicide for agriculture and horticulture: they show antifungal activity and espcially excellent fungicidal activity against various kinds of pest fungi causing plant diseases. They show no injury to plants.
PREPARATION: The reaction of a 3-alkoxy-1,1,1,3-tetrahalopropane of formula II with pyridine is conducted in an inert solvent such as acetone or tetrahydrofuran in the presence or absence if an acid acceptor usually at room temperature to 100°C, preferably at room temperature to about 50°C, to give the compound of formula I.
1-acyl-3-(3,5-dihalogenophenyl)-hydantoin derivative, its preparation, and agricultural and horticultural fungicide comprising it as active constituent
Fungicide N-hydroxy:acetyl-N-phenyl-glycine or -alanine derivs. - prepd. e.g. by reaction of N-phenyl-glycine or -alanine with acyloxy-acyl halide and mild alcoholysis of the prod.