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Synthesis of disulfides and 3-sulfenylchromones from sodium sulfinates catalyzed by TBAI

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A new synthetic method for disulfides and 3-sulfenylchromones is reported. This innovative approach is based on the tetrabutylammonium iodide (TBAI)/H2SO4 reduction system using sodium sulfinate as key component, thus eliminating the need for thiols and redox ... ...