As one of the most important key intermediates, NHC-bound acylazolium-based ionic transformations have been intensively explored in the past two decades. With the expeditious development of NHC-catalyzed radical transformations in recent years, NHC-bound acylazolium chemistry has reached another level, with the number of relevant publications increasing significantly. However, a summary focused on radical acylations of NHC-derived acyl azoliums classified according to the mechanistic difference has not been reported. Such a detailed classification and deep analysis provide opportunities for a better understanding of the history and trend of this field. In this review, radical reactions with N-heterocyclic carbene (NHC)-derived acyl azoliums are systematically introduced. The achievements and challenges within this area are also summarized and discussed at the end.

中文翻译：

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与 N-杂环卡宾 (NHC) 衍生的酰基唑鎓发生自由基反应以获得多功能酮

作为最重要的关键中间体之一，NHC 结合的酰唑鎓基离子转化在过去的二十年中得到了深入的探索。近年来，随着NHC催化自由基转化的迅速发展，NHC结合酰唑化学已达到了另一个水平，相关出版物的数量显着增加。然而，尚未报道根据机制差异分类的 NHC 衍生酰基唑鎓自由基酰化的总结。如此详细的分类和深入的分析为更好地了解该领域的历史和趋势提供了机会。在这篇综述中，系统地介绍了与 N-杂环卡宾 (NHC) 衍生的酰基唑鎓的自由基反应。最后还总结和讨论了该领域的成就和挑战。