Eosin Y, a well‐known economical alternative to metal catalysts in visible‐light‐driven single‐electron transfer‐based organic transformations, can behave as an effective direct hydrogen‐atom transfer catalyst for C−H activation. Using the alkylation of C−H bonds with electron‐deficient alkenes as a model study revealed an extremely broad substrate scope, enabling easy access to a variety of important synthons. This eosin Y‐based photocatalytic hydrogen‐atom transfer strategy is promising for diverse functionalization of a wide range of native C−H bonds in a green and sustainable manner.

中文翻译：

---

曙红Y作为氢键功能化的直接氢原子转移光催化剂

曙红Y是可见光驱动的基于单电子转移的有机转化中金属催化剂的一种著名的经济替代品，它可以作为一种有效的直接进行氢活化的氢原子转移催化剂。使用CH键与缺电子烯烃进行烷基化的模型研究表明，底物范围非常广，可以轻松获得各种重要的合成子。这种基于曙红Y的光催化氢原子转移策略有望以绿色和可持续的方式实现各种天然CH键的多样化功能化。