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Álvarez D, López-Castro E, Guerrero A, Riera L, Pérez J, Díaz J, Menéndez MI, López R. Influence of the Nucleophilic Ligand on the Reactivity of Carbonyl Rhenium(I) Complexes towards Methyl Propiolate: A Computational Chemistry Perspective. Molecules 2020; 25:molecules25184134. [PMID: 32927650 PMCID: PMC7571231 DOI: 10.3390/molecules25184134] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2020] [Revised: 09/04/2020] [Accepted: 09/07/2020] [Indexed: 11/28/2022] Open
Abstract
A comparative theoretical study on the reactivity of the complexes [ReY(CO)3(bipy)] (Y = NH2, NHMe, NHpTol, OH, OMe, OPh, PH2, PHMe, PMe2, PHPh, PPh2, PMePh, SH, SMe, SPh; bipy = 2,2′-bipyridine) towards methyl propiolate was carried out to analyze the influence of both the heteroatom (N, O, P, S) and the alkyl and/or aryl substituents of the Y ligand on the nature of the product obtained. The methyl substituent tends to accelerate the reactions. However, an aromatic ring bonded to N and O makes the reaction more difficult, whereas its linkage to P and S favour it. On the whole, ligands with O and S heteroatoms seem to disfavour these processes more than ligands with N and P heteroatoms, respectively. Phosphido and thiolato ligands tend to yield a coupling product with the bipy ligand, which is not the general case for hydroxo, alcoxo or amido ligands. When the Y ligand has an O/N and an H atom the most likely product is the one containing a coupling with the carbonyl ligand, which is not always obtained when Y contains P/S. Only for OMe and OPh, the product resulting from formal insertion into the Re-Y bond is the preferred.
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Affiliation(s)
- Daniel Álvarez
- Departamento de Química Física y Analítica, Universidad de Oviedo, C/Julián Clavería 8, 33006 Oviedo, Asturias, Spain; (D.Á.); (E.L.-C.); (A.G.); (M.I.M.)
| | - Elena López-Castro
- Departamento de Química Física y Analítica, Universidad de Oviedo, C/Julián Clavería 8, 33006 Oviedo, Asturias, Spain; (D.Á.); (E.L.-C.); (A.G.); (M.I.M.)
| | - Arturo Guerrero
- Departamento de Química Física y Analítica, Universidad de Oviedo, C/Julián Clavería 8, 33006 Oviedo, Asturias, Spain; (D.Á.); (E.L.-C.); (A.G.); (M.I.M.)
| | - Lucía Riera
- Centro de Investigación en Nanomateriales y Nanotecnología (CINN), CSIC-Universidad de Oviedo-Principado de Asturias, Avenida de la Vega 4-6, 33940 El Entrego, Spain; (L.R.); (J.P.)
| | - Julio Pérez
- Centro de Investigación en Nanomateriales y Nanotecnología (CINN), CSIC-Universidad de Oviedo-Principado de Asturias, Avenida de la Vega 4-6, 33940 El Entrego, Spain; (L.R.); (J.P.)
- Departamento de Química Orgánica e Inorgánica, Facultad de Química, Universidad de Oviedo, C/Julián Clavería 8, 33006 Oviedo, Spain
| | - Jesús Díaz
- Departamento de Química Orgánica e Inorgánica, Universidad de Extremadura, Avenida de la Universidad s/n, 10071 Cáceres, Extremadura, Spain;
| | - M. Isabel Menéndez
- Departamento de Química Física y Analítica, Universidad de Oviedo, C/Julián Clavería 8, 33006 Oviedo, Asturias, Spain; (D.Á.); (E.L.-C.); (A.G.); (M.I.M.)
| | - Ramón López
- Departamento de Química Física y Analítica, Universidad de Oviedo, C/Julián Clavería 8, 33006 Oviedo, Asturias, Spain; (D.Á.); (E.L.-C.); (A.G.); (M.I.M.)
- Correspondence: ; Tel.: +34-985-102-967
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