METHOD FOR THE PRODUCTION OF ALPHA,BETA-UNSATURATED CARBONYL COMPOUNDS

Method for the production of alpha ,ss-unsaturated carbonyl compounds of the general formula I in which R is hydrogen, C1- to C10-alkyl, C1- to C10-alkoxy or aryloxy, R is aryl which is optionally substituted by C1- to C4-alkyl, C1- to C4-alkoxy, trifluoromethyl and/or halogen and R is tetrahydrofuranyl, or aryl which is substituted by C1- to C4-alkyl, C1- to C4-alkoxy, trifluoromethyl and/or halogen, characterised in that 3-aminoprop-2-en-1-ones of the general formula II in which R and R have the abovementioned meanings and R and R independently of one another are hydrogen, C1- to C10-alkyl or aryl, are reacted with a magnesium halide of the general formula III R -Mg-Y (III), in which Y represents halogen, at temperatures of -20 to 100 DEG C, and novel alpha ,ss-unsaturated carbonyl compounds, and novel 3-aminoprop- 2-en-1-ones.