1. Continuous-Flow Synthesis of Thioureas, Enabled by Aqueous Polysulfide Solution
- Author
-
András Gy. Németh, Renáta Szabó, György Orsy, István M. Mándity, György M. Keserű, and Péter Ábrányi-Balogh
- Subjects
continuous flow ,sulfur ,aqueous polysulfide solution ,thiourea ,multicomponent reaction ,Organic chemistry ,QD241-441 - Abstract
We have developed the continuous-flow synthesis of thioureas in a multicomponent reaction starting from isocyanides, amidines, or amines and sulfur. The aqueous polysulfide solution enabled the application of sulfur under homogeneous and mild conditions. The crystallized products were isolated by simple filtration after the removal of the co-solvent, and the sulfur retained in the mother liquid. Presenting a wide range of thioureas synthesized by this procedure confirms the utility of the convenient continuous-flow application of sulfur.
- Published
- 2021
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