Tetrazine derivatives

Details Tetrazine derivatives Tetrazine derivatives

C - Chemistry, Metallurgy

07

D

260/248.2, 167/6

C07D 257/08 (2006.01) A01N 43/713 (2006.01) C07C 243/38 (2006.01) C07D 285/12 (2006.01)

Patent

CA 1102327

ABSTRACT The substituted tetrazines of the formula: Image (I) and of the formula Image (II) wherein: R1, R2 and R4 each represent hydrogen, phenyl, alkyl of 1 to 6 carbon atoms, or alkenyl or alkynyl of 3 to 6 carbon atoms, each of which may be unsubstituted or substituted by one or more halogen atoms, hydroxy groups, cyano groups, carboxy groups, alkoxycarbonyl groups of 2 to 5 carbon atoms, or alkoxy groups of 1 to 4 carbon atoms; or R1 and R2 together represent a single bond; R3 represents alkyl of 1 to 6 carbon atoms, cycloalkyl of 3 to 7 carbon atoms, phenyl, or phenylalkyl of 7 to 10 carbon atoms, each of which may be unsubstituted or substituted by one or more halogen atoms, alkyl or alkoxy groups of 1 to 6 carbon atoms, nitro groups, cyano groups, mercapto groups, or alkylmercapto groups of 1 to 4 carbon; atoms; and R6 represents a phenyl group substituted in at least the 2-position by fluorine, chlorine, bromine or iodine; are effective to combat acarids and their eggs.

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