4.5 Article

Sunlight-Driven Synthesis of 1,2,4-Thiadiazoles via Oxidative Construction of a Nitrogen-Sulfur Bond Catalyzed by a Reusable Covalent Organic Framework

Journal

CHEMPHOTOCHEM
Volume 4, Issue 6, Pages 445-450

Publisher

WILEY-V C H VERLAG GMBH
DOI: 10.1002/cptc.201900263

Keywords

covalent organic frameworks; electron transfer; photocatalysis; radicals; visible light

Funding

  1. National Natural Science Foundation of China [U1904191, 21502042]
  2. Science and Technology Develop Project of Kaifeng City [1908011]
  3. First-Class Discipline Breeding Project of Henan University [2019YLZDCG04]
  4. Program for Innovation Teams in Science and Technology in Universities of Henan Province [20IRTSTHN004]

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Employing a two-dimensional covalent organic framework as the reusable solar photosensitizer, the sunlight-driven aerobic oxidative construction of a nitrogen-sulfur bond has been achieved. 3,5-Disubstituted 1,2,4-thiadiazoles are smoothly prepared in water by using this procedure. Furthermore, a radical mechanism with a sunlight-promoted single electron transfer (SET) process is proposed for this transformation.

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