Activation and facile dealkylation of monooxides of 2,2′-bis(alkylthio)biphenyl with triflic anhydride via dithiadications: A new method for preparation of thiasulfonium salts

Add time:07/14/2019    Source:sciencedirect.com

Monooxides of 2,2′-bis(alkylthio)biphenyl undergo facile monodealkylation on treatment with triflic anhydride to afford the corresponding thiasulfonium salts except bis(methylthio) derivative. The reaction proceeds via an initial formation of the corresponding dithiadications.

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