Preparation of methyl 2-(2-methylphenyl)-3-methoxyacrylate

Details Preparation of methyl 2-(2-methylphenyl)-3-methoxyacrylate Preparation of methyl 2-(2-methylphenyl)-3-methoxyacrylate

C - Chemistry, Metallurgy

07

C

C07C 69/734 (2006.01) C07C 67/36 (2006.01)

Patent

CA 2245547

The invention concerns a process for preparing 2-(2-methylphenyl)-3-methoxyacrylic acid methylester (I) by formylating 2-methylphenylacetic acid methylester (II) in an inert solvent in the presence of a base, and subsequent methylation of the resultant enolate (III) in which M+ stands for an alkali metal cation.

L'invention concerne un procédé de préparation de méthylester d'acide 2-(2-méthylphényle)-3-méthoxyacrylique de la formule (I) par formylation de méthylester d'acide 2-méthylphénylacétique de la formule (II) dans un solvant inerte, en présence d'une base, puis par méthylation de l'énolat obtenu, de la formule (III) où M<+> désigne un cation de métal alcalin.

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