Reacción #54746

Ecuación de reacción

2-aminobenzothiazole

diethyl oxalate

→

desired product

Rendimiento 44.0%

Ethyl (2-Benzothiazolyl)Oxamate

Rendimiento 44.0%

Condiciones de reacción

Tratamiento posterior

1. 1
   Temperaturais heated
2. 2
   Temperaturaat reflux for 2.5 hours
3. 3
   OtroA white solid precipitates from the cooled reaction mixture
4. 4
   OtroThe solid is recrystallized from ethanol (
5. 5
   Filtraciónwith a hot filtration)

Procedimiento

A mixture of 2-aminobenzothiazole (5.0 g., 0.033 mol) and diethyl oxalate (50 ml.) is heated at reflux for 2.5 hours. A white solid precipitates from the cooled reaction mixture. The solid is recrystallized from ethanol (with a hot filtration) to give the desired product (3.72 g., m.p. 185°-186°, 44%).

Fuente