反应详情

A mixture of 2-aminobenzhydrazide (7.16 g, 47.4 mmol) and triethyl orthoformate (8.3 mL, 49.9 mmol) in ethanol is heated at reflux for 3.5 hours under a nitrogen atmosphere, cooled and filtered to obtain the title product as a white solid, 6.06 g (79%), mp 209°-210.5° C.

1. temperatureis heated
2. temperatureat reflux for 3.5 hours under a nitrogen atmosphere
3. temperaturecooled
4. filtrationfiltered