@article{c1761283b9544fd281fb2590cb187899,
title = "Bis-Triazolylidenes of Manganese and Rhenium and Their Catalytic Application in N-Alkylation of Amines with Alcohols",
abstract = "A new family of air-stable Mn and Re complexes bearing bidentate bis(1,2,3-triazol-5-ylidene) ligands with the general formula [M(bis-triazolylidene)(CO)3X] (M = Mn or Re; X = Cl or Br), containing a methylene linker or a direct link between the two triazolylidene ligands, is presented. All complexes have been applied as catalysts for the N-alkylation of anilines with benzylic alcohols. The Mn complex bearing a bis-triazolylidene with a methylene bridge between the two triazolylidene fragments was shown to be a highly efficient catalyst, affording the corresponding amine in 92% yield in the presence of a low base loading (t-BuOK, 0.1 equiv). Comparison between Mn complexes bearing imidazolium- and triazolium-derived N-heterocyclic carbene ligands showed that Mn triazolylidenes displayed higher catalytic activity when a low base loading was used.",
author = "Sofia Fri{\~a}es and Gomes, {Clara S.B.} and Beatriz Royo",
note = "Funding Information: The authors thank Funda{\c c}{\~a}o para a Ci{\^e}ncia e Tecnologia (FCT) for Projects PTDC/QUI-QIN/0359/2021, MOSTMICRO-ITQB, UIDB/04612/20220, and UIPD/04612/2020 and Ph.D. Fellowship SFRH/BD/131955/2017 (S.F.). The National NMR Facility is supported by CERMAX through Project 022162. The authors also thank C. Almeida for elemental analysis at ITQB laboratories. For the X-ray diffraction studies, C.S.B.G. thanks FCT for Projects LAQV (UIDB/50006/2020, UIDP/50006/2020, and LA/P/0008/2020), UCIBIO (UIDB/04378/2020 and UIDP/04378/2020), and i4HB (LA/P/0140/2020). Publisher Copyright: {\textcopyright} 2023 The Authors. Published by American Chemical Society.",
year = "2023",
doi = "10.1021/acs.organomet.3c00046",
language = "English",
journal = "Organometallics",
issn = "0276-7333",
publisher = "ACS - American Chemical Society",
}