Tricyclic compounds having fungicidal activity, their preparation and their use

摘要

Compounds of formula (I): Äin which: R<1> represents halogen, alkyl, haloalkyl, alkoxy, haloalkoxy, cycloalkyl, or cycloalkyloxy; R<2> represents hydrogen or halogen; R<3> represents hydrogen, alkyl, or cycloalkyl; and the dotted line represents a single or double carbon-carbon bondÜ; and salts thereof have valuable fungicidal activities which make them of considerable value in agriculture and horticulture.