1-aryl-d2-1,2,4-triazolin-5-ones compounds as intermediates

C - Chemistry – Metallurgy – 07 – D

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260/313.3

C07D 249/08 (2006.01) A01N 43/653 (2006.01) C07D 249/12 (2006.01)

Patent

CA 1262734

ABSTRACT A compound of the formula Image in which R is a radical selected from the group consisting of methyl, ethyl, 1-methylethyl, methoxymethyl, 2-methoxyethyl, 1- methyl-2-methoxyethyl, 2-propenyl, 2-propynyl and 1-methyl-2- propynyl one of R and R1 is hydrogen. These compounds are useful in the preparation of compounds of the formula Image wherein R is methyl, ethyl, 1-methylethyl, methoxymethyl, 2- methoxyethyl, 1-methyl-2-methoxyethyl, 2-propenyl, 2-propynyl or 1-methyl-2-propynyl which are themselves useful as herbicides against a variety of grassy and broadleaf weeds in both pre- emergence and post-emergence applications and show selectivity favourable to cotton in pre-emergence applications.

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