Réaction #54746

Équation de réaction

2-aminobenzothiazole

diethyl oxalate

→

desired product

Rendement 44.0%

Ethyl (2-Benzothiazolyl)Oxamate

Rendement 44.0%

Conditions de réaction

Traitement

1. 1
   Températureis heated
2. 2
   Températureat reflux for 2.5 hours
3. 3
   AutreA white solid precipitates from the cooled reaction mixture
4. 4
   AutreThe solid is recrystallized from ethanol (
5. 5
   Filtrationwith a hot filtration)

Mode opératoire

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%).

Source