Add time:07/19/2019         Source:sciencedirect.com

A practical approach to synthesize 2-aminothiazolo[5,4-c]pyridines from simple asymmetric pyridylthioureas was achieved by utilizing K3[Fe(CN)6] as the oxidant. These reactions went through an intramolecular oxidation and finally led to the formation of CS bond. Furthermore, the possible oxidative cyclization mechanism was also explored by the addition of radical scavengers, which showed that the oxidative cyclization was promoted via a free radical mechanism.

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