Cyanoacetamide derivatives having fungicidal activity.

摘要

Disclosed is a method of fighting fungus infections by using compounds having the general formula: <CHEM> wherein R is H, C1-C4 alkyl, alkenyl or alkynyl; n is 1 or 2; A represents a C1-C6 alkylene bridge, an arylene or a heterocyclic bridge; X represents O, S, SO or SO2; R<1> is selected from C1-C6 alkyl, optionally substituted phenyl, polyfluoroalkyl containing 1 to 4 carbon atoms and at least 2 fluorine atoms, and polyfluoroalkenyl containing 2 to 4 carbon atoms and at least 2 fluorine atoms, excluding those compounds of general formula (I) wherein A is alkylene, n is 2 and R<1> is C1-C6 alkyl.