The construction of C−N bonds is a central tenet of modern synthetic chemistry as it widely exists in bioactive molecules, natural products, and functional materials. Visible‐light induced strategies can serve as particularly powerful tools for achieving C−N bond formation. This mini review summarizes the recent advancements in the transformation of C(sp ³)−H bonds into C−N bonds via photocatalysis under metal catalyst‐free conditions. These reactions generally occur in the presence of abundant and clean visible‐light at ambient temperature without the use of metal catalysts, which undoubtedly represents a future trend in green and sustainable chemistry. The main achievements in this area from 2015 until the present are described according to the type of nitrogen sources and emphasis is placed on the working mechanisms.

中文翻译：

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可见光诱导的C（sp3）-H功能化，在无金属催化剂条件下形成C-N键

CN键的构建是现代合成化学的核心原则，因为它广泛存在于生物活性分子，天然产物和功能材料中。可见光诱导策略可以作为实现CN键形成的强大工具。这种迷你综述在C（改造的最新进展SP ³）-H键成C-N键的通过在无金属催化剂的条件下进行光催化。这些反应通常在不使用金属催化剂的情况下，在环境温度下在充足，清洁的可见光下进行，这无疑代表着绿色和可持续化学的未来趋势。根据氮源的类型描述了从2015年到目前在该领域的主要成就，重点是工作机制。