Sodium Carbonate → 2,2,6-Trimethylcyclohexyl 2-cyano-3,3-diphenylacrylate

Beteiligte Stoffe

Reaktionsschritte

55.4 g (0.2 mol) of ethyl 2-cyano-3,3-diphenylacrylate (Uvinul 3035), 100 ml of 2,2,6-trimethylcyclohexanol and 4 g of Na2CO3 were reacted with one another at 184-186° C. with distillative removal of the ethanol formed, assisted by a stream of nitrogen. After about 3 h, the reaction mixture was filtered hot in order to remove the Na2CO3. After the filtrate had been cooled, it was distilled under reduced pressure, giving 55 g (74%) of 2,2,6-trimethylcyclohexyl 2-cyano-3,3-diphenylacrylate [λmax=304 nm, E11=351] as a colorless solid.

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