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This study aims to develop green and sustainable advanced synthetic methods based on redox cyclization. Elemental sulfur has been shown to promote the efficient synthesis of 2-substituted benzothiazoles from 2,2’-dinitrodiphenyl… Click to show full abstract
This study aims to develop green and sustainable advanced synthetic methods based on redox cyclization. Elemental sulfur has been shown to promote the efficient synthesis of 2-substituted benzothiazoles from 2,2’-dinitrodiphenyl disulfides and benzylamines via redox cyclization in the absence of transition metal catalysts and solvents. The 2-substituted benzothiazoles were obtained in good to excellent yields. This synthetic methodology is highly atom-economical and does not require any external oxidizing and/or reducing agents.
Journal Title: Synthesis
Year Published: 2021
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