Diethyl Ether → HCID 178426886, compound

Participants

Reaction Steps

In 200 ml of ethanol were dissolved 21.8 g of the p-methylphenyl α-methyl-β-(p-aminophenyl)-propionate hydrochloride obtained and 4.2 of cyanamide, and the resulting solution was subjected to reaction at 70° C. for 5 hours. After the reaction, the solvent was removed by distillation under reduced pressure, to obtain an oily product. A mixture of ethanol and diethyl ether was added thereto and the solution was cooled, upon which crystals precipitated. The crystals were collected by filtration and recrystallized from an ethanol-diethyl ether mixture, to obtain p-methylphenyl α-methyl-β-(p-guanidinophenyl)propionate hydrochloride in the form of colorless crystals. Yield: 17.4 g (70%); melting point: 146°-148° C.; IR (cm-1): 3500-2550, 1748, 1653, 1631; MS: M+ =m/e 312 (M.W. -HCl).

Provenance & Evidence