Acetic Anhydride → HCID 86736211, compound

Participants

Reaction Steps

A solution of 2-(4-amino-5-oxo-1,3,6-cycloheptatrien-1-ylamino)-2-butenedioic acid diethyl ester (1.7 g, described in Example 1) in acetic anhydride (17 ml) is stirred at room temperature for 16 hr. The solution is evaporated and the residue is dissolved in ethyl acetate. The solution is washed with 1N potassium hydroxide and water, dried over sodium sulfate and evaporated to give a residue of 2-(4-acetylamino-5-oxo-1,3,6-cycloheptatrien-1-ylamino)-2-butenedioic acid diethyl ester.

Provenance & Evidence