Preparation of new 1,3-identically substituted-triazine-2,4-diones
AssigneeBayer Aktiengesellschaft
InventorsHellmut Bredereck, Willi Kantlehner, Wolfgang Kugel, Edgar Mohring, Peter Roessler
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Abstract
New 1,3-identically substituted-triazine-2,4-diones of the formula ##STR1## in which R is alkyl with 2 to 6 carbon atoms, cycloalkyl with 5 or 6 carbon atoms, phenyl, naphthyl, or phenyl or naphthyl substituted by halogen, nitro or alkyl with 1 to 4 carbon atoms, and R.sup.1 is hydrogen or alkyl with 1 to 4 carbon atoms, Which possess arthropodicidal and nematicidal properties, are prepared by reacting a bis-silylated carboxylic acid amide of the formula ##STR2## with an isocyanate of the formula R--N=C=O (III)
Claims13
A 1,3-identically substituted-triazine-2,4-dione of the formula ##STR42## in which each R is the same and is alkyl with 2 to 6 carbon atoms, cycloalkyl with 5 or 6 carbon atoms, phenyl, naphthyl, or phenyl or naphthyl substituted by halogen, nitro or alkyl with 1 to 4 carbon atoms, and
- R.sup.1 is hydrogen or alkyl with 1 to 4 carbon atoms.
A process for the preparation of a 1,3 identically substituted-triazine-2,4-dione, comprising reacting a bis-silylated carboxylic acid amide of the formula ##STR48## with an isocyanate of the formula
- R-N=C=O
- in which
- R is alkyl with up to 6 carbon atoms, cycloalkyl with 5 or 6 carbon atoms, phenyl, naphthyl, or phenyl or naphthyl substituted by halogen, nitro or alkyl with 1 to 4 carbon atoms.
Dependencies are inferred from the claim text.