| 摘要 |
2-Arylamino-hexahydropyrimidines and imidazolidines of formula …<CHEM>… wherein n is 0 or 1, R1 and R2, equal or different, represent hydrogen, alkyl, alkyloxy or alkylthio having from 4 to 12 carbon atoms, cycloalkyl having from 3 to 7 carbon atoms, bezyloxy, benzylthio, phenoxy or phenylthio optionally substituted with halogen or C1-C4 alkyl, phenylalkyl having from 7 to 11 carbon atoms, of which the phenyl group is optionally substituted with halogen, dialkylamino, or with alkyl, alkoxy or alkylthio, which alkyl, alkoxy or alkylthio have from 1 to 6 carbon atoms and are optionally halogenated, furylalkyl or thienylalkyl of which the alkyl groups have from 1 to 4 carbon atoms, dialkylamino of which the alkyl has from 2 to 6 carbon atoms, or alkoxycarbonyl having from 4 to 12 carbon atoms, or wherein R1 and R2 together represent trimethylene, tetramethylene or butadienylene with the proviso that R1 and R2 are not both hydrogen atoms, R3, R4, R7 and R8, equal or different, represent hydrogen or alkyl having from 1 to 4 carbon atoms, and R5 R6, equal or different, represent hydrogen, alkyl having from 1 to 4 carbon atoms or alkanoyl having from 2 to 5 carbon atoms, as well as salts and complexes of these compounds, have fungicidal activity. …<??>The compounds are particularly active against rust of beans, brown rust of wheat and milden on cereas. …<??>After having been processed to compositions, the compounds can be used successfully to prevent or control mould infections in agriculture and horticulture in a dosage of 200-1000g. of active substance per hectare. Very active fungicides are 2-(4-cyclohexyl-phenyl)- iminohexahydropyrimidine and 2-(4-n-hexyl- phenyl)- iminohexahydropyrimidine, as well as the sulphuric acid salts of these compounds and complexes with zinc salts. |
