Hydrochloric Acid → HCID 178473115, compound

Participants

Reaction Steps

Slowly bubble N2O3 gas (generated by the dropwise addition of concentrated HCl into an aqueous solution of sodium nitrite) into a stirred solution of ethyl 4-(2,6-dichlorophenyl)-2,4-dioxobutanoate (14.4 g, 50 mmol) in EtOH (300 mL) until the reaction is complete (as determined by TLC). Remove the EtOH by evaporation under reduced pressure and partition the residue between EtOAc and water. Dry the organic extract over MgSO4 and evaporate in vacuo to obtain the title compound which is used in the next step without further purification.

Provenance & Evidence