ethyl 4-cyclohexyl-2,4-dioxobutanoate

Conditions: temp:50.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: 1H-Benzoimidazol-5-ylamine (1 mmol) and 3,4 Dichlorobenzaldehyde (1 mmol) were added to ethanol (5 ml). After 30 min 4-Cyclohexyl-2,4-dioxo-butyric acid ethyl ester (1 mmol) was added. The reaction was heated to 50° C. and stirred for 24 h. After evaporation of the solvent the residue was purified with chromatographic methods. After evaporation of the solvent the residue was purified with chromatographic methods