| Home > Articles > Published articles > Well-Defined β-Diketiminatocobalt(II) Complexes for Alkene Cyclohydroamination of Primary Amines |
| Date: | 2018 |
| Abstract: | A well-defined low-coordinate β-diketiminatocobalt(II) alkyl complex is reported as an active precatalyst for the selective alkene cyclohydroamination of unprotected primary amines under mild conditions (rt-90 °C). The reaction mechanism has been investigated by deuterium-labeling, kinetics, and stoichiometric experiments and in-depth computational DFT studies. On the basis of these studies, we propose a stepwise noninsertive mechanism that features a rate-determining nucleophilic attack of the amido group of a monomeric cobalt(II) amidoalkene-aminoalkene adduct intermediate to the noncoordinated pendant alkene followed by a rapid proton transfer from the coordinated aminoalkene to the cyclized adduct. |
| Grants: | Agencia Estatal de Investigación CTQ2017-87889-P Ministerio de Economía y Competitividad CTQ2016-81797-REDC |
| Rights: | Aquest material està protegit per drets d'autor i/o drets afins. Podeu utilitzar aquest material en funció del que permet la legislació de drets d'autor i drets afins d'aplicació al vostre cas. Per a d'altres usos heu d'obtenir permís del(s) titular(s) de drets. |
| Language: | Anglès |
| Document: | Article ; recerca ; Versió acceptada per publicar |
| Subject: | DFT calculations ; Alkenes ; Cobalt ; Hydroamination ; Mechanistic studies ; Primary amines |
| Published in: | ACS catalysis, Vol. 8, Issue 5 (May 2018) , p. 4446-4451, ISSN 2155-5435 |
Postprint 6 p, 557.9 KB |