DIHALOGEN-2,3-FLUOR-2-PROPANALS, PROCESS FOR THEIR PREPARATION AND THEIR APPLICATION FOR OBTAINING DIHALOGEN-2,3-FLUOR-2-PROPIONIC ACID HALIDES AND ESTERS, AND ALSO ALKYL- OR ARYLFLUORACRYLATES

摘要

New industrial products having the formula (I) and obtention process thereof comprising the halogenation, by direct addition of halogen X2, fluoro-2-acroleine, itself obtained by hydrolisis of acetals from the opening in soft and controllable conditions of alkoxy-1-halogeno-2-fluoro-2-cyclopropanes cycles. Said new products are applied to produce an alkyl or aryl fluoroacrylate comprising the obtention stage of a new intermediary (brominated) product of the series of dihalogeno-2,3-fluoro-2-propanoyls.