Hydrochloric Acid → HCID 21405556, compound

Participants

Reaction Steps

6.40 Grams of 3-amino-1-ethylpiperidine in 150 milliliters of chloroform were added to a suspension of 9.65 grams of 4-nitrophthalic anhydride in 100 milliliters of chloroform. The solution formed was stirred at room temperature for twenty minutes and evaporated to dryness. The gummy residue was dissolved in 50 milliliters of acetic anhydride and the mixture was heated to 100° C. for thirty-five minutes. The excess acetic anhydride was distilled and the residue extracted into 100 milliliters of chloroform and the solution was washed with 50 milliliters of saturated sodium bicarbonate solution, 50 milliliters of water, dried over magnesium sulphate and evaporated to give a brown oil. The oil was dissolved in 20 milliliters of isopropanol and ethereal hydrogen chloride was added to give 9.33 grams of the title compound as the hydrochloride, quarterhydrate.

Provenance & Evidence