Novel microbiocides

摘要

Compounds of formula (I): wherein X is CRaRb-CRcRd or CRe=CRf; Ra-f are hydrogen, C­1-8alkyl, C­1-8haloalkyl, C3-8cycloalkyl, C1-4alkoxy, C1-4haloalkoxy; Y1 and Y5 are hydrogen or substituents wherein both Y1 and Y5 cannot be hydrogen; Y2 and Y3 are hydrogen, halogen, cyano, nitro, optionally substituted C3-8cycloalkyl, C2-8alkenyl or C2-8alkynyl, SH, C1-8alkylthio, O(CO)R1, OR2, CO2R2, N(R4)2 or CH2R5; or Y1 and Y2 or Y2 and Y3 together with the fragment of ring to which they are attached may form a partially or fully unsaturated 5-7-membered carbocyclic or heterocyclic ring; R1-5 are hydrogen or substituents; Y4 hydrogen or substituents; or a salt or N-oxide thereof may be useful in compositions and methods for the control and/or prevention of microbial infection, particularly fungal infection, in plants. Processes for the preparation of these compounds are also described.