A general and efficient Cp*Co-catalyzed C2-thiolation and C2,C3-dithiolation of indole derivatives has been achieved employing -(aryl/alkylthio)succinimide as a thiolating reagent. This external oxidant-free method utilizes only catalytic amounts of additive and tolerates various functional groups to afford various thiolated products in good yields. Control experiments revealed the importance of the Cp*Co-catalyst for both C2- and C3-thiolation.
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| http://dx.doi.org/10.1039/d1cc03760a | DOI Listing |
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