Chalcogen Atoms as Electron Donors in Proton-Coupled Electron Transfer Reactions

被引：11
|
作者：
Mena, Leandro D. [2 ]
Baumgartner, Maria T. [1 ]
机构：
[1] Univ Nacl Cordoba, Fac Ciencias Quim, Dept Quim Organ, INFIQC, X5000, Cordoba, Argentina
[2] Univ Nacl Mar Del Plata, Fac Ciencias Exactas & Nat, Dept Quim, QUIAMM,INBIOTEC, B7600, Mar Del Plata, Argentina
来源：
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | 2022年 / 144卷 / 35期
关键词：
ANTIOXIDANT; MECHANISMS; PHENOXYL/PHENOL; BENZYL/TOLUENE; SUBSTITUENTS; REACTIVITY; CHEMISTRY; KINETICS; PHENOLS; PI;
D O I：
10.1021/jacs.2c05602
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Proton-coupled electron transfer (PCET) reactions are crucial for the optimal functioning of a broad scope of chemical and biological processes. In this report, we present an unprecedented type of concerted PCET (cPCET), in which a chalcogen atom acts as the electron donor. The nature of this mechanism is key for understanding the reactivity of different radical trapping antioxidants having heavy chalcogens (S, Se, or Te) in their structures. Moreover, this chalcogen-assisted cPCET is likely to be occurring in multiple systems of biological interest.
引用
收藏
页码：15922 / 15927
页数：6
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