Organic fluorescent molecules have broad applications in modern technology, such as in security systems, chemosensors, bioprobes, field-effect transistors, memory devices, organic light-emitting diodes, etc. The transition-metal-catalyzed C–H bond functionalization approach represents a distinct, facile, and atom-efficient tactic for the construction of organic fluorescent molecules, which are often difficult to prepare using typical synthetic methods. In this review, four types of C–H bond functionalization reactions for the preparation of fluorescent materials are discussed: (1) transition-metal-catalyzed C–H/C–X cross-coupling reactions; (2) transition-metal-catalyzed C–H/C–H cross-coupling reactions; (3) transition-metal-catalyzed C–H addition and/or annulation reactions; and (4) transition-metal-catalyzed C–H/C–M or C–H/Het-H bond functionalization. The objective of this review is to characterize the current state of the art in using transition-metal-catalyzed C–H functionalization to build fluorescent molecules as well as their application in electroluminescent materials, mechanofluorochromic materials, labels, sensors for bioimaging, etc.

有机荧光分子在现代技术中具有广泛的应用，例如在安全系统，化学传感器，生物探针，场效应晶体管，存储设备，有机发光二极管等中。过渡金属催化的C–H键功能化方法代表了一种用于构造有机荧光分子的独特，便捷且原子高效的策略，而使用常规合成方法通常很难制备这些分子。在这篇综述中，讨论了用于制备荧光材料的四种类型的C–H键官能化反应：（1）过渡金属催化的C–H / C–X交叉偶联反应；（2）过渡金属催化的C–H / C–H交叉偶联反应；（3）过渡金属催化的C–H加成和/或环化反应；（4）过渡金属催化的C–H / C–M或C–H / Het-H键功能化。这篇综述的目的是表征使用过渡金属催化的C–H官能化来构建荧光分子的最新技术，以及它们在电致发光材料，机械荧光致变色材料，标签，生物成像传感器等中的应用。