Reacción #3784

Ecuación de reacción

1,2-bis(2-methyl-5-trimethylsilyl-3-thienyl)hexafluorocyclopentene

hydrobromic acid

→

1,2-bis(2-methyl-3-thienyl)hexafluorocyclopentene

Rendimiento 98.0%

Disolventes

chloroform

Condiciones de reacción

Tratamiento posterior

1. 1
   Otroto react for 6 hours under refluxing conditions
2. 2
   OtroAfter the completion of the reaction
3. 3
   Lavadothe chloroform layer was washed with an aqueous solution of sodium bicarbonate
4. 4
   Otrothe chloroform was removed under reduced pressures
5. 5
   OtroThe reaction product was purified by silicagel column chromatogram

Procedimiento

1,2-bis(2-methyl-5-trimethylsilyl-3-thienyl)hexafluorocyclopentene (2.16 g, 0.005 mol) was dissolved in chloroform (200 ml) and was allowed to react for 6 hours under refluxing conditions by adding concentrated hydrobromic acid (10 ml) to the solution. After the completion of the reaction, the chloroform layer was washed with an aqueous solution of sodium bicarbonate and the chloroform was removed under reduced pressures. The reaction product was purified by silicagel column chromatogram to give 1,2-bis(2-methyl-3-thienyl)hexafluorocyclopentene (1.8 g, 0.0049 mol).

Fuente