反应详情

A mixture of 5-methoxy-2-nitrobenzoic acid (15.8 g, 0.08 mol), oxalyl chloride (25 g, 0.197 mol) and N,N-dimethylformamide (2 drops) is stirred at reflux for 4 hours, cooled, stirred at room temperature under nitrogen for several days and concentrated in vacuo to give the title product as a yellow oil which is identified by 1HNMR spectral analysis.

1. temperatureat reflux for 4 hours
2. temperaturecooled
3. stirringstirred at room temperature under nitrogen for several days
4. concentrationconcentrated in vacuo