| (11) | EP 0 258 682 A3 |
(12) | EUROPEAN PATENT APPLICATION |
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(54) | Process for the production of substituted benzoic acid esters |
(57) A process for the production of esters of the general formula
in which R¹ signifies methyl or ethyl and R² and R³, independently from one another, signify C1-4-alkyl, is described. The process is characterized in subjecting a diketo ester of the formula in which R¹ to R³ have the above significances, and X is chloro or bromo, preferably chloro, to a dehydrohalogenation process. The compounds I are known odorants. |