量子点凝胶作为用于有机合成的高效且独特的光催化剂。
Quantum dot gels as efficient and unique photocatalysts for organic synthesis.
作者信息
Liu Daohua, Nyakuchena James, Maity Rajendra, Geng Xin, Mahajan Jyoti P, Hewa-Rahinduwage Chathurange C, Peng Yi, Huang Jier, Luo Long
机构信息
Department of Chemistry, Wayne State University, Detroit, Michigan 48202, USA.
Department of Chemistry, Marquette University, Milwaukee, Wisconsin, 53201, USA.
出版信息
Chem Commun (Camb). 2022 Oct 6;58(80):11260-11263. doi: 10.1039/d2cc03872b.
Abstract
Here we report CdS quantum dot (QD) gels as highly efficient and unique photocatalysts for organic synthesis. We found that the photocatalytic activity of CdS QD gel was superior to phosphine oxide- and thiolate-capped CdS QDs for dehalogenation and α-amine arylation reactions because of the high accessibility of its surface sites to the substrates. In addition, we discovered the unique reactivity of CdS QD gel for ring-opening during α-amine arylation of tetrahydroisoquinoline the reductive cleavage of C-N bonds. QD gels provide new opportunities in photocatalysis due to their unique surface interactions with the substrates or intermediates.
摘要
在此，我们报道硫化镉量子点（QD）凝胶作为用于有机合成的高效且独特的光催化剂。我们发现，由于硫化镉量子点凝胶的表面位点对底物具有高可及性，其在脱卤和α-胺芳基化反应中的光催化活性优于氧化膦和硫醇盐封端的硫化镉量子点。此外，我们发现了硫化镉量子点凝胶在四氢异喹啉的α-胺芳基化反应中环开环的独特反应性——碳氮键的还原裂解。量子点凝胶因其与底物或中间体独特的表面相互作用，在光催化领域提供了新机遇。
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