Hydrochloric Acid → HCID 57104178, compound

Participants

Reaction Conditions

Reaction Steps

A solution of 270 ml of morpholine in 1000 ml of absolute toluene is added dropwise at 0° C. over a period of 30-40 minutes to 740 ml of a 70% sodium dihydro-bis(2-methoxyethoxy)-aluminate solution in toluene and 1200 ml of toluene. The resulting solution is added dropwise at 0° C. over a period of 1 hour to 78.0 g of 3-(p-tert.butyl-phenyl)-2,3-dimethyl-acrylic acid ethyl ester in 340 ml of absolute toluene. The mixture is then stirred at 0° C. for 0.75 hour, poured into 3 liters of water and hydrochloric acid is added until the emulsion is eliminated. The toluene solution is separated, washed with water and sodium bicarbonate solution, dried over sodium sulphate and concentrated. By distillation there is obtained pure p-tert.butyl-α,β-dimethyl-cinnamaldehyde of boiling point 122°-128° C./0.005 Torr.

Provenance & Evidence