2-phenyl-5, 6-dihydro-4-pyrone derivatives

Details 2-phenyl-5, 6-dihydro-4-pyrone derivatives 2-phenyl-5, 6-dihydro-4-pyrone derivatives

C - Chemistry, Metallurgy

07

D

260/356.6, 71/8.

C07D 309/38 (2006.01) A01N 43/16 (2006.01) C07D 309/32 (2006.01) C07D 311/74 (2006.01) C07D 311/94 (2006.01)

Patent

CA 1134373

ABSTRACT 2-Phenyl-5,6-dihydro-4-pyrone derivatives of the general formula: Image (wherein R1 and R2, which taken singly have the same or different significances, each represent a hydrogen atom or an alkyl radical containing from 1 to 4 carbon atoms, containing from 2 to 6 carbon atoms, R3, represents an alkyl radical containing from 1 to 4 carbon atoms, an alkenyl radical containing from 2 to 4 carbon atoms, an alkynyl radical containing from 2 to 4 carbon atoms, a halogenoalkyl radical containing from 1 to 4 carbon atoms, or an alkoxyalkyl radical containing from 3 to 5 carbon atoms, Y represents a halogen atom, an alkyl radical containing from 1 to 4 carbon atoms or an alkoxy radical containing from 1 to 4 carbon atoms, and n represents 1, 2 or 3) are new compounds useful as herbicides.

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