Direct Photocatalyzed Hydrogen Atom Transfer (HAT) for Aliphatic C–H Bonds Elaboration,Chemical Reviews

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Direct Photocatalyzed Hydrogen Atom Transfer (HAT) for Aliphatic C–H Bonds Elaboration
Chemical Reviews ( IF 51.4 ) Pub Date : 2021-08-06 , DOI: 10.1021/acs.chemrev.1c00263
Luca Capaldo ₁ , Davide Ravelli ₂ , Maurizio Fagnoni ₂

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Direct photocatalyzed hydrogen atom transfer (d-HAT) can be considered a method of choice for the elaboration of aliphatic C–H bonds. In this manifold, a photocatalyst (PC_HAT) exploits the energy of a photon to trigger the homolytic cleavage of such bonds in organic compounds. Selective C–H bond elaboration may be achieved by a judicious choice of the hydrogen abstractor (key parameters are the electronic character and the molecular structure), as well as reaction additives. Different are the classes of PCs_HAT available, including aromatic ketones, xanthene dyes (Eosin Y), polyoxometalates, uranyl salts, a metal-oxo porphyrin and a tris(amino)cyclopropenium radical dication. The processes (mainly C–C bond formation) are in most cases carried out under mild conditions with the help of visible light. The aim of this review is to offer a comprehensive survey of the synthetic applications of photocatalyzed d-HAT.

中文翻译：

用于脂肪族 C-H 键制备的直接光催化氢原子转移 (HAT)

直接光催化氢原子转移 ( d -HAT) 可以被认为是制备脂肪族 C-H 键的一种选择方法。在这种歧管中，光催化剂 (PC _HAT ) 利用光子的能量来触发有机化合物中此类键的均裂。通过明智地选择夺氢剂（关键参数是电子特性和分子结构）以及反应添加剂，可以实现选择性的 C-H 键加工。不同的是个人电脑_HAT的类别可用，包括芳香酮、呫吨染料（曙红 Y）、多金属氧酸盐、铀酰盐、金属氧代卟啉和三（氨基）环丙烯自由基双阳离子。在大多数情况下，这些过程（主要是 C-C 键的形成）是在可见光的帮助下在温和的条件下进行的。本综述的目的是对光催化d -HAT 的合成应用进行全面调查。

更新日期：2021-08-06

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