126213-50-1 3,4-乙烯二氧噻吩

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合成路线 3（3. 合成：126213-50-1）

产率：98% 合成条件：at 20 - 140℃; for 8.50 h; 实验步骤：在室温下将3,4-亚乙二氧基-2,5-噻吩二甲酸（460g）和铜粉（69g）加入到乙二醇（1400g）中。 将反应混合物在室温下在空气中搅拌30分钟，并将空气连续引入反应混合物中。 然后将反应混合物在140℃下加热8小时。 反应完成后，使用与实施例1中所述相同的方法纯化反应混合物，得到3,4-亚乙二氧基噻吩（281g，纯度：98％）。 参考文献：

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