Desulfinylation of Ag(I) sulfinyl mesoionic carbenes: Preparation of C-unsubstituted Au(I)–1,2,3-triazole carbene complexes

Maria Frutos (1, 2) , Manuel A. Ortuno (3, 2) , Agusti Lledos (3, 2) , Alma Viso (1, 2) , Roberto Fernandez de La Pradilla (1, 2) , Maria C. de La Torre (1, 2) , Miguel A. Sierra (4, 2) , Heinz Gornitzka (5, 6) , Catherine Hemmert (5)

1 CSIC-IQOG
2 ORFEO−CINQA - Centro de Innovación en Química Avanzada (ORFEO−CINQA Network)
3 UAB - Departament de Química [Barcelona]
4 Departamento de Química Orgánica I, Facultad de Química, Universidad Complutense
5 LCC - Laboratoire de chimie de coordination
6 UT3 - Université Toulouse III - Paul Sabatier

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.

Domaines: Chimie de coordination

Maria Frutos, Manuel A. Ortuno, Agusti Lledos, Alma Viso, Roberto Fernandez de La Pradilla, et al.. Desulfinylation of Ag(I) sulfinyl mesoionic carbenes: Preparation of C-unsubstituted Au(I)–1,2,3-triazole carbene complexes. Organic Letters, 2017, 19 (4), pp.822-825. ⟨10.1021/acs.orglett.6b03808⟩. ⟨hal-01947829⟩