Reaction #1357870

Reaction equation

3,4-Ethylenedioxythiophene-2,5-dicarboxylic acid

→

3,4-ethylenedioxythiophene

Yield 95.7%

Solvents

DMF

Conditions

Workup

1. 1
   workup.ADDITIONWhile air was slowly introduced to the reaction mixture, it
2. 2
   TemperatureAfter cooling
3. 3
   Otherthe reaction mixture was purified

Procedure

3,4-Ethylenedioxythiophene-2,5-dicarboxylic acid (230 g) and basic copper carbonate (23 g) were added to DMF (600 g) at room temperature. While air was slowly introduced to the reaction mixture, it as heated at 120° C. for 5 hours. After cooling, the reaction mixture was purified using the same process as described in Example 1 to obtain 3,4-ethylenedioxythiophene (136 g, purity: 97%).

Source