Organic dyes have emerged as a reliable class of photoredox catalysts. Their great structural variety combined with the easy fine-tuning of their electronic properties has unlocked new possibilities for the generation of reactive intermediates. In this review, we provide an overview of the available approaches to access reactive intermediates that employ organophotocatalysis. Our contribution is not a comprehensive description of the work in the area but rather focuses on key concepts, accompanied by a few selected illustrative examples. The review is organized along the type of reactive intermediates formed in the reaction, including C(sp³) and C(sp²) carbon-, nitrogen-, oxygen-, and sulfur-centered radicals, open-shell charged species, and sensitized organic compounds.

中文翻译：

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有机染料的光催化：易于获得反应中间体进行合成。

有机染料已成为可靠的一类光氧化还原催化剂。它们巨大的结构多样性以及易于调节的电子性能为反应性中间体的产生开辟了新的可能性。在这篇综述中，我们提供了使用有机光催化来获得反应性中间体的可用方法的概述。我们的贡献不是对该领域工作的全面描述，而是专注于关键概念，并附有一些精选的示例性例子。审查是根据反应中形成的反应性中间体的类型来组织的，包括C（sp ³）和C（sp ²）以碳，氮，氧和硫为中心的自由基，开壳带电物种和敏化自由基有机化合物。