반응 #1357869

반응 방정식

3,4-Ethylenedioxy-2,5-thiophenedicarboxylic acid

→

3,4-ethylenedioxythiophene

수율 98.9%

용매

ethylene glycol

반응 조건

후처리

1. 1
   workup.ADDITIONair was continuously introduced into the reaction mixture
2. 2
   온도The reaction mixture was then heated at 140° C. for 8 hours
3. 3
   기타the reaction mixture was purified

실험 절차

3,4-Ethylenedioxy-2,5-thiophenedicarboxylic acid (460 g) and a copper powder (69 g) were added to ethylene glycol (1400 g) at room temperature. The reaction mixture was stirred under air for 30 minutes at room temperature, and air was continuously introduced into the reaction mixture. The reaction mixture was then heated at 140° C. for 8 hours. After the reaction was complete, the reaction mixture was purified using the same process as described in Example 1 to obtain 3,4-ethylenedioxythiophene (281 g, purity: 98%).

출처