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Published on: May 21, 2019
Visible Light-Catalyzed Reactions of Polysulfide (DBSPS) with Aryldiazonium
Ling-Juan Tang1, Wei-Chen Zhu2, Hong-He Deng2
1Analysis and Testing Center, Nantong University, No.1 Nanhai Road, Nantong, 226019, People's Republic of China.
Abstract:
A visible light-catalyzed radical coupling reaction of polysulfide reagents with aryldiazonium was developed, which gave thiosulfonates under mild conditions. In this reaction, the thiosulfonates were isolated in good yields with a broad tolerance to functional groups. And the synthesis of diaryl monosulfides were achieved through a step-by-step reaction of two molecular aryldiazonium with DBSPS, where the sulfur source was provided by DBSPS. It was worth noting that the reaction of this monosulfides could also be achieved by a one pot two-step process. The described polysulfide reagents were able to produce three new radicals: sulfonyl radicals, sulfur-sulfonyl radicals and sulfur-sulfur-sulfonyl radicals.
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