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Cyclopropanecarboxylic acid or 2,2-dimethyl cyclopropanecarboxylic acid was used as a leading compound for its biological activity.Six new N-(substituted) cyclopropanecarboxyl-N′-pyridin-2-yl thioureas were prepared.Compound 5 was obtained by oxidizing cyclization of compound 4 in the presence of bromine in chloroform solution.The structures of 4 and 5 were confirmed by ~1H NMR and elemental analysis.The preliminary biological tests indicate that compound 4b and 4e have excellent herbicidal activity,and compound 4c and 4f have excellent fungicidal activity.
Cyclopropanecarboxylic acid or 2,2-dimethyl cyclopropanecarboxylic acid was used as a leading compound for its biological activity. Fresh new N- (substituted) cyclopropanecarboxyl-N’-pyridin-2-yl thioureas were prepared. Compound 5 was obtained by oxidizing cyclization of compound 4 in the presence of bromine in chloroform solution. These structures of 4 and 5 were confirmed by ~ 1H NMR and elemental analysis. The preliminary biological tests indicate that compound 4b and 4e have excellent herbicidal activity, and compound 4c and 4f have excellent fungicidal activity.