Abstract
Sulfur-containing heterocycles, where the S(R) moiety is located within the cyclic
structure, have found tremendous applications in the fields of chemical, pharmaceutical,
and materials sciences due to their unique chemical, biological and pharmaceutical
activities. Recent years have witnessed increasing interest in sulfur-containing heterocycles,
and new methods for their synthesis have been reported by adopting modern methodologies
and technologies through insertion of sulfur dioxide. The main objective of this Account
is to overview the latest major developments on the synthesis of sulfur-containing
heterocyclic systems, mainly covering thermo-, photo- and electron-induced cyclization
through the insertion of sulfur dioxide (SO2). We aim to provide the readership with a comprehensive understanding of this topic
and offer a positive outlook on the promising future of this field.
1 Introduction
2 Thermal-Induced Cyclization
3 Photoinduced Radical Cyclization
4 Electron-Induced Radical Cyclization
5 Conclusion
Key words
S-heterocycles - cyclization - sulfur dioxide - photocatalysis - electrocatalysis