New and well-characterized Ag-bis(1,2,3-triazolylidene) complexes having enantiopure (S)-sulfoxides upon sequential treatment with alcohols and Au(I) form separable mixtures of regioisomeric C-unsubstituted Au-1,2,3-triazolylidene complexes. Mechanistic studies and DFT calculations support a desulfinylation process for in situ generated free triazolylidene salts.
Bibliographical noteFunding Information:
Support for this work under grants (CTQ2013-46459-C2-01-P to M.A.S., CTQ2013-46459-C2-02-P to M.C.T., and CTQ2014-51912-RDC) from the MINECO (Spain) is gratefully acknowledged. M.F. thanks the MINECO for FPI fellowship. Ms. M. Velado (CSIC) is acknowledged for helping with the preparation of some starting materials.
© 2017 American Chemical Society.