Fungicidal spiroheterocyclic derivatives

Details Fungicidal spiroheterocyclic derivatives Fungicidal spiroheterocyclic derivatives

C - Chemistry, Metallurgy

07

D

C07D 307/94 (2006.01) A01N 43/08 (2006.01) A01N 43/12 (2006.01) A01N 43/34 (2006.01) A01N 43/84 (2006.01) C07D 405/02 (2006.01) C07D 407/12 (2006.01) C07D 413/02 (2006.01)

Patent

CA 2128474

A B S T R A C T New fungicidal spiroheterocyclic compounds are described, having the general formula I, Image I or an acid-addition salt thereof, in which R1 or each R1 independently represents an optionally substituted alkyl, cycloalkyl, cycloalkylalkyl, alkoxy, cycloalkoxy, alkoxyalkyl, aralkyl, aryl or aryloxy group, or R1 or each R1, together with the ring to which they are attached, represents an optionally substituted polycyclic hydrocarbyl group, R2 represents a hydrogen atom or a C1-4 alkyl group, R3 represents a hydrogen atom, a hydroxy group or an optionally substituted alkoxy or acyloxy group, R4 and R5 each independently represent a hydrogen atom, an optionally substituted alkyl, alkenyl, alkynyl, cycloalkylalkyl, cycloalkyl, bicycloalkyl, tricycloalkyl, alkoxyalkyl, aryl, aralkyl, haloaralkyl, a 4- to 6- membered heterocyclyl, tetrahydrofurfuryl or dioxolanyl group, or R4 and R5 together represent an optionally substituted, saturated or unsaturated carbon chain which may optionally contain one or more oxygen atoms and which may optionally be aryl- or cycloalkyl-fused, m represents zero or an integer from 1 to 6, and p represents zero or an integer from 1 to 3. The invention further relates to the preparation of the above spiroheterocyclic compounds, intermediates prepared during the synthesis of these compounds, compositions containing the compounds and their use as fungicides in the control of phytopathogenic fungi.

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