Synthesis of 3‐Methylthioindoles via Intramolecular Cyclization of 2‐Alkynylanilines Mediated by DMSO /DMSO ‐d6 and SOCl2
Chinese Journal of Chemistry(2021)
Abstract
Main observation and conclusionThe intramolecular cyclization of 2‐alkynylanilines mediated by DMSO/SOCl2 was found to afford biologically interesting 3‐methylthioindoles, which are rarely obtained by the exiting methods. DMSO could also be replaced with its deuterated counterpart, enabling the method applicable to the construction of indole skeleton bearing a SCD3 moiety at its 3‐position.
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