Hydrochloric Acid → HCID 20217058, compound

Participants

Reaction Conditions

Reaction Steps

1.0 ml of concentrated hydrochloric acid was added to a suspension of 2.0 g of 2-hydroxymethyl-5-ethyl-imidazo-[1,2-a]-quinoxaline-4(5H)-one in 40 ml of hot methanol and the solution was filtered hot. The filtrate was extracted with 20 ml of ethyl acetate and the organic phase was cooled to 0° C. and filtered to obtain 2.0 g of 2-hydroxymethyl-5-ethyl-imidazo-[1,2-a]-quinoxaline-4(5H)-one hydrochloride in the form of colorless crystals melting at 224°-226° C.

Provenance & Evidence