Abstract

Electrochemical oxidation of hydroquinones (1a–1b) were studied in the presence of meldrum’s acid (3) as a nucleophile in an ethanol-phosphate buffer (pH 7, 0.20 M) mixture (as a green media), by means of voltammetric techniques. The obtained results indicated that the p-quinones (2a–2b) are derived from 1a–1b participation in a 1,4-Michael addition reaction, with the meldrum’s acid (3) to form the corresponding new symmetric and asymmetric benzofurans (8a and 6b). The electrochemical synthesis of these new compounds (8a and 6b) has been successfully performed in an undivided cell with high yield and good purity.

中文翻译：

---

在存在Meldrum酸的情况下，通过对苯二酚氧化，可无催化剂，简便且绿色地合成新的对称和不对称苯并呋喃

摘要

通过伏安法，在乙醇磷酸盐缓冲液（pH 7，0.20 M）混合物（作为绿色介质）中，在亲核体存在麦芽糖酸（3）的情况下，研究了对苯二酚（1a-1b）的电化学氧化。获得的结果表明，对苯二酚（2a-2b）源自1a - 1b参与1,4-Michael加成反应，与me的酸（3）形成相应的新的对称和不对称苯并呋喃（8a和6b）。这些新化合物的电化学合成（8a和6b）已成功地在未分裂的细胞中以高产率和高纯度进行。