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Chiral Photocatalyst Structures in Asymmetric Photochemical Synthesis
Chemical Reviews ( IF 51.4 ) Pub Date : 2021-10-04 , DOI: 10.1021/acs.chemrev.1c00467
Matthew J Genzink 1 , Jesse B Kidd 1 , Wesley B Swords 1 , Tehshik P Yoon 1
Affiliation  

Asymmetric catalysis is a major theme of research in contemporary synthetic organic chemistry. The discovery of general strategies for highly enantioselective photochemical reactions, however, has been a relatively recent development, and the variety of photoreactions that can be conducted in a stereocontrolled manner is consequently somewhat limited. Asymmetric photocatalysis is complicated by the short lifetimes and high reactivities characteristic of photogenerated reactive intermediates; the design of catalyst architectures that can provide effective enantiodifferentiating environments for these intermediates while minimizing the participation of uncontrolled racemic background processes has proven to be a key challenge for progress in this field. This review provides a summary of the chiral catalyst structures that have been studied for solution-phase asymmetric photochemistry, including chiral organic sensitizers, inorganic chromophores, and soluble macromolecules. While some of these photocatalysts are derived from privileged catalyst structures that are effective for both ground-state and photochemical transformations, others are structural designs unique to photocatalysis and offer insight into the logic required for highly effective stereocontrolled photocatalysis.

中文翻译:


不对称光化学合成中的手性光催化剂结构



不对称催化是当代有机合成化学研究的一个重要主题。然而,高度对映选择性光化学反应的一般策略的发现是一个相对较新的发展,并且可以以立体控制方式进行的光反应的种类因此受到一定限制。光生反应中间体的寿命短、反应活性高,使得不对称光催化变得复杂;催化剂结构的设计可以为这些中间体提供有效的对映分化环境,同时最大限度地减少不受控制的外消旋背景过程的参与,已被证明是该领域取得进展的关键挑战。本综述总结了溶液相不对称光化学研究的手性催化剂结构,包括手性有机敏化剂、无机发色团和可溶性大分子。虽然其中一些光催化剂源自对基态和光化学转化均有效的特殊催化剂结构,但其他光催化剂是光催化独特的结构设计,并提供对高效立体控制光催化所需逻辑的深入了解。
更新日期:2021-10-04
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