Abstract
Oxidative coupling of thiols to the corresponding symmetrical disulfides was performed in the presence of γ‐picolinium chlorochromate and its silica gel supported. The reactivity of silica gel supported γ‐picolinium chlorochromate for thiophenol derivatives is more than the reactivity of pyridinium and γ‐picolinium chlorochromates.
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Acknowledgment
We are grateful to the Research Council of Razi University for partly financially supporting this work.