| abstract |
The application relates to a process for the preparation of unsaturated monoesters of the formula (I) in which diesters of the formula (II) where the radicals R¹ to R⁵ in the formulas (I) and (II) are identical to one another and for the hydrogen, straight-chain or branched alkyl or alkenyl radicals having 1 to 10 carbon atoms, cycloalkyl or cycloalkylene radicals having 5 to 8 carbon atoms, aryl, Alyklaryl or aralkyl radicals are, with elimination of carboxylic acids R⁶COOH, where R⁶ is hydrogen or alkyl radical having 1 to 6 carbon atoms, in the presence of zeolites and / or phosphates as catalysts. n means an integer from 1 to 10. |