Reaction #40263

Reaction equation

1,2-dimethylbenzimidazole

bis(2-bromoethyl) disulfide

propionitrile

→

3,3′-(disulfanediyldiethane-2,1-diyl)bis(1,2-dimethyl-1H-benzimidazol-3-ium) dibromide

Conditions

Workup

1. 1
   TemperatureAfter cooling
2. 2
   Filtrationfiltration
3. 3
   Washwashing with 3 times 10 ml
4. 4
   Dryingdrying under vacuum, 2.2 g of beige solid
5. 5
   Otherwere recovered

Procedure

2.4 g of 1,2-dimethylbenzimidazole, 2.1 g of bis(2-bromoethyl) disulfide and 6 ml of propionitrile were stirred at 100 C in a sealed 20 ml reactor for 8 h. After cooling, filtration, washing with 3 times 10 ml and drying under vacuum, 2.2 g of beige solid were recovered. The analyses showed that the product was in conformity with the expected structure.

Source