NEW MATERIAL:A compound expressed by formula I (X is halogen; Y is H or halogen; Z is tert.-butyl, 1-methylcyclopropyl, 2methoxypropane-2-yl or 1- methyl-2,5-dioxacyclopentyl; Ar is phenyl, pyridyl or 2-methoxypyridin-5-yl; n is 1 or 2).
EXAMPLE: N-(4-Chlorobenzyl)-N-neopentyl N'-(2-methoxypyridin-5-yl)urea.
USE: A germicide for agriculture and horticulture, especially effective to a plant disease by a microorganism of Basidiomycetes and useful for Rhizoctonia solani of rice plant and Puccinia striiformis, Typhula incarnata, T. ishikariensis and Ustilagotritiici, U. nuda of wheat, etc.
PREPARATION: A carbamoyl chloride expressed by formula II is reacted with an amino compound expressed by the formula H2N-Ar in the presence of a base (e.g., sodium hydride) in a solvent such as benzene at 0°CWboiling point of reaction liquid for 1W15hr to provide the compound expressed by formula I.
NAKAMURA SHIGEO
TAKANO JINKO
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