Hydrochloric Acid → HCID 20159861, compound

Participants

Reaction Conditions

Reaction Steps

A solution of 2.4 g of 3-methoxy-2-(4-pentenyl)acrolein and 3.4 g of p-pentylbenzamidine hydrochloride in 30 ml of methanol was treated dropwise while stirring with a sodium methylate solution prepared from 0.55 g of sodium and 5 ml of methanol. The reaction mixture was stirred overnight at 50° C. and then neutralized (pH 5) with 3N hydrochloric acid. The solvent was distilled off and the residue was taken up in diethyl ether and water. The aqueous phase was back-extracted with diethyl ether. The organic phase was phase was washed with water, dried over sodium sulphate and concentrated. Chromatographic separation of the residue on silica gel with hexane/ethyl acetate gave 5-(4-pentenyl)-2-(p-pentylphenyl)pyrimidine as a colourless liquid; m.p. (C--I) 8.0° C., cl.p. (N--I) -4.5° C.

Provenance & Evidence