An electron has recently been shown to catalyze the cross-coupling reaction of organometallic compounds with aryl halides. In terms of green and sustainable chemistry, the electron catalysis is much more desirable than the inevitably used transition metal catalysis but a high temperature of more than 100°C is required to achieve it. Here, we disclose that visible light photoirradiation accelerates the electron-catalyzed reaction of arylzinc reagents with aryl halides with the aid of a photoredox catalysis. Photoexcitation of a photoredox catalyst and an anion radical intermediate respectively affects the supply and transfer of the electron catalyst, promoting the cross-coupling reaction to proceed at room temperature. The supply of the electron catalyst by the photoredox catalysis makes the scope of aryl halides wider.

中文翻译：

---

电子催化交叉偶联反应中通过光照射操纵电子

最近已证明电子可以催化有机金属化合物与芳基卤化物的交叉偶联反应。在绿色和可持续化学方面，电子催化比不可避免地使用的过渡金属催化更理想，但需要超过100°C的高温才能实现。在这里，我们公开了可见光光照射在光氧化还原催化的帮助下加速了芳基锌试剂与芳基卤化物的电子催化反应。光氧化还原催化剂和阴离子自由基中间体的光激发分别影响电子催化剂的供给和转移，促进交叉偶联反应在室温下进行。通过光氧化还原催化提供电子催化剂使得芳基卤化物的范围更广。