Ethanol → HCID 21545728, compound

Participants

Reaction Steps

6-Chloro-5-(N-acetyl-N-isopropylamino)-1-methyl-1H-indazole-4,7-dione (3 grams prepared by a similar method to that described in Example III) and isopropylamine (3 grams) in ethanol (25 milliliters) were heated together under reflux for 10 minutes. On cooling the reaction mixture a yellow-orange solid crystallized out, which was filtered off and dried to yield 6-ethoxy-5-(N-acetyl-N-isopropylamino)-1-methyl-1H-indazole-4,7-dione having a melting point of 154°-155° C.

Provenance & Evidence