1-(2-phenylphenyl)ethanone

Conditions: temp:0.00; pressure:0.00; stir:

Conditions: temp:0.00; pressure:0.00; stir:

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

Procedure: To a solution of 1.86 g of 2-acetyl-biphenyl in 10 ml of anhydrous chloroform, a solution of 1.29 g of bromine in 1.5 ml of anhydrous chloroform was added at 15°-20° C. When the addition was complete, the solution was stirred for 15 minutes, then poured into water. The chloroformic solution was washed with sodium bicarbonate and water, dried over calcium chloride and evaporated to dryness. 2.54 g of 2-bromoacetyl-biphenyl were obtained; the product could be used for reaction with imidazole without further purification. When the addition The chloroformic solution was washed with sodium bicarbonate and water dried over calcium chloride evaporated to dryness

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

Procedure: A solution of 10.1 g. of 2-acetyl-1,1'-biphenyl in 100 ml. of ethanol containing 7.6 g. of paraformaldehyde, 9.7 g. of dimethylaminium chloride and one drop of concentrated hydrochloric acid was heated to reflux and stirred for sixteen hours. After cooling the reaction mixture to room temperature, the solvent was removed by evaporation. The residue thus formed was crystallized from ethanol and diethyl ether to give 3.6 g of N,N-dimethyl-3-oxo-3-(1,1'-biphenyl-2-yl)propylaminium chloride. M.P. 130°-131° C. to reflux the solvent was removed by evaporation The residue thus formed was crystallized from ethanol and diethyl ether

Conditions: temp:0.00; pressure:0.00; stir: