Hydrochloric Acid → HCID 178418234, compound

Participants

Reaction Conditions

Reaction Steps

Dissolve 1,2,3,4-tetrahydronaphthalene-2-carboxylic acid (2-amino-4,6-dioxo-3,5-dipropylcyclohex-1-enyl)amide (2.0 g, 5.2 mmol) in ethanol (50 ml), add 15% potassium hydroxide (50 ml) and heat to 70° C. for 4 hours. After cooling to 0° C., acidify the reaction with concentrated hydrochloric acid (13 ml). Add water (100 ml) and collect the resulting precipitate by suction filtration. Purify the white solid by flash chromatography (50% ethyl acetate/hexane) and triturate with 5% diethyl ether/hexane to provide, after drying under vacuum at 120° C. for 30 minutes the title compound (1.04 g), m.p. 202°-204° C.

Provenance & Evidence