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- Title
One‐pot Tandem Synthesis and Spontaneous Product Separation of N‐heterocycles based on Bifunctional Small‐molecule Photocatalyst.
- Authors
Yao, Xin‐Rong; Jia, Meng‐Ze; Miao, Xiao‐Li; Chen, Yun‐Rui; Pan, Jia‐Qi; Zhang, Jie
- Abstract
Homogeneous and heterogeneous reactions wherein the resulting products remain dissolved in solvents generally require complicated separation and purification process, despite the advantage of heterogeneous systems allowing retrieval of catalysts. Herein, we have developed an efficient approach for the one‐pot tandem synthesis of quinazolines, quinazolinones and benzothiadiazine 1,1‐dioxides from alcohols and amines utilizing a bifunctional bipyridinium photocatalyst with redox and Lewis acid sites using air as an oxidant. Through solvent‐modulation strategy, the photocatalytic system exhibits high performance and enables most products to separate spontaneously. Consequently, the homogeneous catalyst can be reused by direct centrifugation isolation of the products. Notably, the method is also applicable to the less active substrates, such as heterocyclic alcohols and aliphatic alcohols, and thus provides an efficient and environmentally friendly photocatalytic route with spontaneous separation of N‐heterocycles to reduce production costs and meet the needs of atomic economy and green chemistry.
- Subjects
SUSTAINABLE chemistry; ALCOHOL oxidation; ALIPHATIC alcohols; SUSTAINABLE development; HIGH performance computing; QUINAZOLINONES; LEWIS acids
- Publication
ChemSusChem, 2024, Vol 17, Issue 7, p1
- ISSN
1864-5631
- Publication type
Article
- DOI
10.1002/cssc.202301495