Ethyl Acetoacetate → HCID 22642453, compound

Participants

Reaction Conditions

Reaction Steps

30 ml of acetic acid and 4 g of ethyl acetoacetate were added to 5.7 g of 3-(3-chlorophenylamino)-1-phenyl-2-pyrazolin-5-one, and they were heated and stirred over a bath of 150° C. for 10 hours and 20 minutes. Insoluble matter was filtrated from the reaction solution in a hot state, and washed with isopropanol, followed by drying with air, to obtain 2.3 g of 7-(3-chlorophenyl)-2-phenyl-4-methylpyrazolo(3,4-b)pyridin-3,6-dione. It had a melting point of from 278 to 282° C.

Provenance & Evidence