1
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Almenara N, Barquin M, Huertos MA, Garralda MA. Oxidative Addition of Secondary Phosphine Oxides through Rh(I) Center: Hydrido‐Phosphinito‐Rh(III) Complexes and their Catalytic Activity in Hydrophosphinylation of Alkynes. Eur J Inorg Chem 2021. [DOI: 10.1002/ejic.202100786] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Naroa Almenara
- Departamento de Química Aplicada Universidad del País Vasco (UPV/EHU) Apartado 1072 20080 San Sebastián Spain
| | - Montserrat Barquin
- Departamento de Química Aplicada Universidad del País Vasco (UPV/EHU) Apartado 1072 20080 San Sebastián Spain
| | - Miguel A. Huertos
- Departamento de Química Aplicada Universidad del País Vasco (UPV/EHU) Apartado 1072 20080 San Sebastián Spain
- IKERBASQUE Basque Foundation for Science 48013 Bilbao Spain
| | - María A. Garralda
- Departamento de Química Aplicada Universidad del País Vasco (UPV/EHU) Apartado 1072 20080 San Sebastián Spain
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2
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Azpeitia S, Mendicute‐Fierro C, Huertos MA, Rodríguez‐Diéguez A, Seco JM, Mota AJ, Garralda MA. Experimental and DFT studies on Hexacoordinated acyl(alkyl)and Pentacooordinated Hydroxyalkyl(phosphinite)erhodium(III). Catalytic Hydrolysis of Ammonia Borane. Eur J Inorg Chem 2021. [DOI: 10.1002/ejic.202001028] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Susan Azpeitia
- Facultad de Química de San Sebastián Universidad del País Vasco (UPV/EHU) Apdo. 1072 20080 San Sebastián Spain
| | - Claudio Mendicute‐Fierro
- Facultad de Química de San Sebastián Universidad del País Vasco (UPV/EHU) Apdo. 1072 20080 San Sebastián Spain
| | - Miguel A. Huertos
- Facultad de Química de San Sebastián Universidad del País Vasco (UPV/EHU) Apdo. 1072 20080 San Sebastián Spain
- Ikerbasque Basque Foundation for Science 48011 Bilbao Spain
| | | | - José M. Seco
- Facultad de Química de San Sebastián Universidad del País Vasco (UPV/EHU) Apdo. 1072 20080 San Sebastián Spain
| | - Antonio J. Mota
- Departamento de Química Inorgánica Facultad de Ciencias Universidad de Granada 18071 Granada Spain
| | - María A. Garralda
- Facultad de Química de San Sebastián Universidad del País Vasco (UPV/EHU) Apdo. 1072 20080 San Sebastián Spain
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3
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Iannetelli A, Da Costa RC, Guwy AJ, Tizzard GJ, Coles SJ, Owen GR. Transformation of a Norbornadiene Unit to Ethylenylcyclopentene Requiring Cooperation between Boron and Rhodium Centers. Organometallics 2020. [DOI: 10.1021/acs.organomet.0c00155] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Angelo Iannetelli
- School of Applied Sciences, University of South Wales, Pontypridd, CF37 4AT, U.K
| | | | - Alan J. Guwy
- Sustainable Environment Research Centre, University of South Wales, Pontypridd, CF37 4AT, U.K
| | - Graham J. Tizzard
- UK National Crystallography Service, University of Southampton, Highfield, Southampton, SO17 1BJ, U.K
| | - Simon J. Coles
- UK National Crystallography Service, University of Southampton, Highfield, Southampton, SO17 1BJ, U.K
| | - Gareth R. Owen
- School of Applied Sciences, University of South Wales, Pontypridd, CF37 4AT, U.K
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4
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Azpeitia S, Barquín M, Mendicute-Fierro C, Huertos MA, Rodríguez-Diéguez A, Seco JM, San Sebastian E, Ibarlucea L, Garralda MA. (Diphenylphosphino)alkylaldehyde affords hydride- or alkyl-[(diphenylphosphino)alkylacyl]rhodium(iii) or (diphenylphosphino)alkylester complexes: theoretical and experimental diastereoselectivity. Dalton Trans 2019; 48:3300-3313. [PMID: 30778458 DOI: 10.1039/c8dt04929g] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
The reaction of [RhCl(COD)]2 (COD = 1,5-cyclooctadiene) with racemic PPh2(CH(Ph)CH2CHO) and pyridine (py) led to the oxidative addition of the aldehyde, and a single geometric isomer of [RhHCl(PPh2(CH(Ph)CH2CO))(py)2] (1), with hydride trans to chloride, was obtained as a mixture of two diastereomers in a 95 : 5 ratio; this was in agreement with density functional theory (DFT) calculations. In a chloroform solution, the exchange of hydride by chloride yielded [RhCl2(PPh2(CH(Ph)CH2CO))(py)2] (2) as a mixture of a kinetically preferred species, trans-py-2a, and two diastereomers, cis-Cl-2b' and cis-Cl-2b, with cis pyridines and a chloride trans to acyl; as predicted by the DFT calculations, the latter was the major species. Complex 1 reacted with racemic PPh2(CH(Ph)CH2CHO) or PPh2(o-C6H4CHO) to afford [RhHCl(PPh2(CH(Ph)CH2CO))(κ1-PPh2(CH(Ph)CH2CHO))(py)] (3) or [RhHCl(PPh2(o-C6H4CO))(κ1-PPh2(CH(Ph)CH2CHO))(py)] (4), respectively, both with a dangling alkylaldehyde. Diastereomeric mixtures with the ratios 3a/3a' = 80 : 20 and 4a/4a' = 50 : 50 were obtained. Complex 4 reacted with N-donors to afford cationic [RhH(NN)(PPh2(o-C6H4CO))(κ1-PPh2(CH(Ph)CH2CHO))]BPh4 (NN = 1,10-phenanthroline, 5; 2,2'-bipyridine, 6) or with 8-aminoquinoline (aqui) or 2-(aminomethyl)pyridine to yield imination products with terdentate ligands: [RhH(PPh2(o-C6H4CO))(κ3-PNN)]BF4 (PNN = PPh2(CH(Ph)CH2CNC9H6N), 7 and PPh2(CH(Ph)CH2CNCH2C5H4N), 8, respectively. Compounds 5-8 were obtained as equimolar a/a' mixtures of diastereomers. Moreover, 5a and 5a' could be separated. [RhCl(NBD)]2 reacted with racemic PPh2(CH(Ph)CH2CHO) and N-donors to provide nortricyclyl (Ntyl) derivatives [RhCl(NN)(Ntyl)(PPh2CH(Ph)CH2CO)] (NN = phen, 9 and bipy, 10) as an a/a' = 75 : 25 mixture of diastereomers. By reacting [RhCl(NBD)]2 with PPh2(CH(Ph)CH2CHO) and quinoline-8-carbaldehyde in methanol, the phosphino-ester complex [RhCl(Ntyl)(C9H6NCO)(κ2-PPh2CH(Ph)CH2CO(OCH3)] 11 was obtained. The initial equimolar mixture of two diastereomers readily transformed into a single diastereomer, which was found to be thermodynamically most stable by the DFT calculations. Furthermore, single crystal X-ray diffraction analysis of cis-Cl-2b, 5a, 7a, 10a and 11 is reported.
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Affiliation(s)
- Susan Azpeitia
- Facultad de Química de San Sebastián, Universidad del País Vasco (UPV/EHU), Apdo. 1072, 20080 San Sebastián, Spain.
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5
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Azpeitia S, Prieto U, San Sebastián E, Rodríguez-Diéguez A, Garralda MA, Huertos MA. Alkene-alkyl interconversion: an experimental and computational study of the olefin insertion and β-hydride elimination processes. Dalton Trans 2018; 47:6808-6818. [PMID: 29722775 DOI: 10.1039/c8dt00448j] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The preparation and characterization of various alkyl, allyl or alkene Rh(iii) and Ir(iii) complexes as well as studies on the intramolecular reactions leading to transformation of one into another are reported. The silyl-hydrido-Rh(iii) complex {Rh(H)[SiMe(o-C6H4SMe)2](PPh3)}[BArF4], with a vacant coordination site, reacts with 1,5-cyclooctadiene (cod) leading to olefin insertion into the Rh-H bond and rearrangement to yield the 16e cyclooctenyl-Rh(iii) complex {Rh(η3-cyclooctenyl)[SiMe(o-C6H4SMe)2]}[BArF4] (1). This compound can be also synthesized by reaction of the 18e chloride precursor {Rh(η3-cyclooctenyl)[SiMe(o-C6H4SMe)2]Cl} with NaBArF4. The reaction of the thioether-silane SiMeH(o-C6H4SMe)2 with [Rh(nbd)Cl]2 (nbd = norbornadiene) leads to {Rh(σ-ntyl)[SiMe(o-C6H4SMe)2]Cl} (ntyl = nortricyclyl) (2). The abstraction of chloride from this neutral 16e ntyl-Rh(iii) complex with NaBArF4 results in the unusual isomerization of σ-nortricyclyl into σ,π-norbornenyl forming the 16e and cationic {Rh(σ,π-nbyl)[SiMe(o-C6H4SMe)2][BArF4] (nbyl = norbornenyl)} compound 3. Coordinatively saturated {Ir(η3-cyclooctenyl)[SiMe(o-C6H4SMe)2]Cl} (4) has been synthesized by the reaction of [Ir(cod)Cl]2 with SiMeH(o-C6H4SMe)2. The reaction of 4 with NaBArF4 led to the formation of the unsaturated and cationic Ir(iii) compound {Ir(η3-cyclooctenyl)[SiMe(o-C6H4SMe)2]}[BArF4] (5). Compound 5 shows low stability in solution and undergoes successive β-hydride elimination and olefin insertion steps, which were elucidated by DFT calculations, to form 18e {Ir(H)[SiMe(o-C6H4SMe)2](η4-cod)}[BArF4] (6).
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Affiliation(s)
- S Azpeitia
- Facultad de Química de San Sebastián, Universidad del País Vasco (UPV/EHU), Apartado 1072, 20080, San Sebastián, Spain.
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6
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San Nacianceno V, Ibarlucea L, Mendicute-Fierro C, Rodríguez-Diéguez A, Seco JM, Mota AJ, Garralda MA. Secondary Oxide Phosphines to Promote Tandem Acyl-Alkyl Coupling/Hydrogen Transfer to Afford (Hydroxyalkyl)rhodium Complexes. Theoretical and Experimental Studies. Inorg Chem 2018; 57:5307-5319. [PMID: 29659263 DOI: 10.1021/acs.inorgchem.8b00320] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Acyl(σ-norbornenyl)rhodium(III) dimer [Rh(μ-Cl)(C9H6NCO)(C7H9)L]2 (1) (C7H9 = σ-norbornenyl; L = 4-picoline, isoquinoline) reacts with diphenylphosphine oxide (SPO) to undergo a one-pot reaction involving (i) cleavage of the chloride bridges and coordination of the phosphine, (ii) C-C bond coupling between acyl and norbornenyl in a 18e species, and (iii) ligand-assisted outer-sphere O(P)-to-O(C) hydrogen transfer, to afford mononuclear 16e species [RhCl{(C9H6NC(O)C7H9)(Ph2PO)H}(L)] (2) containing a quinolinyl-(norbornenylhydroxyalkyl) fragment hydrogen-bonded to a κ1- P-phosphinite ligand. Pentacoordinated 2, which adopt a distorted trigonal bipyramidal structure, are kinetic reaction products that transform into the thermodynamic favored isomers 3. Structures 3 contain an unusual weak η1-C anagostic interaction involving the rhodium atom and one carbon atom of the olefinic C-H bond of the norbornenyl substituent in the chelating quinolinyl-hydroxyalkyl moiety. Their structure can be described as pseudoctahedral, through a 5 + 1 coordination, with the anagostic interaction in a trans disposition with respect to the phosphorus atom of the phosphinite ligand. Complexes were characterized in solution by NMR spectroscopy and electrospray ionization mass spectrometry. Complex [RhCl{(C9H6NC(O)C7H9)(Ph2PO)H}(4-picoline)] (3a) was also identified by X-ray diffraction. Density functional theory calculations confirm the proposed structures by a plausible set of mechanisms that accounts for the 1 (monomer) → 2 → 3 transformation. Lowest-energy pathways involve reductive elimination of quinolinylnorbornenylketone, still coordinated in the rhodium(I) species thus formed, followed by O-to-O hydrogen transfer from κ1- P-SPO to the sp3 hybridized carbonyl group (formal alkoxide) avoiding the otherwise expected classical release of ketone. Theoretical 13C NMR studies also confirm the experimental spectral data for the considered structures.
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Affiliation(s)
- Virginia San Nacianceno
- Facultad de Química de San Sebastián , Universidad del País Vasco (UPV-EHU) , Apdo. 1072 , 20080 San Sebastián , Spain
| | - Lourdes Ibarlucea
- Facultad de Química de San Sebastián , Universidad del País Vasco (UPV-EHU) , Apdo. 1072 , 20080 San Sebastián , Spain
| | - Claudio Mendicute-Fierro
- Facultad de Química de San Sebastián , Universidad del País Vasco (UPV-EHU) , Apdo. 1072 , 20080 San Sebastián , Spain
| | | | - José M Seco
- Facultad de Química de San Sebastián , Universidad del País Vasco (UPV-EHU) , Apdo. 1072 , 20080 San Sebastián , Spain
| | - Antonio J Mota
- Facultad de Ciencias , Universidad de Granada , Avda. Fuentenueva s/n , 18002 Granada , Spain
| | - María A Garralda
- Facultad de Química de San Sebastián , Universidad del País Vasco (UPV-EHU) , Apdo. 1072 , 20080 San Sebastián , Spain
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7
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Corona-González MV, Zamora-Moreno J, Cuevas-Chávez CA, Rufino-Felipe E, Mothes-Martin E, Coppel Y, Muñoz-Hernández MA, Vendier L, Flores-Alamo M, Grellier M, Sabo-Etienne S, Montiel-Palma V. A family of rhodium and iridium complexes with semirigid benzylsilyl phosphines: from bidentate to tetradentate coordination modes. Dalton Trans 2017; 46:8827-8838. [DOI: 10.1039/c7dt00727b] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Rh and Ir coordination of phosphines with 1 to 3 Si–H groups.
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8
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Almenara N, Ibarlucea L, Mendicute-Fierro C, Seco JM, Rodríguez-Diéguez A, Garralda MA, Huertos MA. A pentacoordinated norbornenyl-acyl-rhodium(iii) complex as a likely intermediate in the catalytic hydroacylation of norbornadiene. Dalton Trans 2016; 45:18502-18509. [DOI: 10.1039/c6dt03778j] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The isolated and characterized compounds hydrido-acyl-Rh(iii) and norbornenyl-acyl-Rh(iii) are active species in the hydroacylation of norbornadiene with quinoline-8-carbaldehyde.
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Affiliation(s)
- N. Almenara
- Facultad de Química de San Sebastián
- Universidad del País Vasco (UPV/EHU)
- San Sebastián
- Spain
| | - L. Ibarlucea
- Facultad de Química de San Sebastián
- Universidad del País Vasco (UPV/EHU)
- San Sebastián
- Spain
| | - C. Mendicute-Fierro
- Facultad de Química de San Sebastián
- Universidad del País Vasco (UPV/EHU)
- San Sebastián
- Spain
| | - J. M. Seco
- Facultad de Química de San Sebastián
- Universidad del País Vasco (UPV/EHU)
- San Sebastián
- Spain
| | | | - M. A. Garralda
- Facultad de Química de San Sebastián
- Universidad del País Vasco (UPV/EHU)
- San Sebastián
- Spain
| | - M. A. Huertos
- Facultad de Química de San Sebastián
- Universidad del País Vasco (UPV/EHU)
- San Sebastián
- Spain
- IKERBASQUE
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9
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Azpeitia S, Fernández B, Garralda MA, Huertos MA. Silyl–Thioether Multidentate Ligands – Synthesis of Rh
III
Complexes via Rh
I
/Rh
III
Mixed‐Valent and Cyclooctenyl Intermediates. Eur J Inorg Chem 2015. [DOI: 10.1002/ejic.201501024] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Susan Azpeitia
- Departamento de Química Aplicada, Universidad del País Vasco (UPV/EHU), Apartado 1072, 20080 San Sebastián, Spain, http://www.ehu.es
| | - Belén Fernández
- Departamento de Química Inorgánica, Universidad de Granada, Avenida Fuentenueva s/n, 18071 Granada, Spain
| | - María A. Garralda
- Departamento de Química Aplicada, Universidad del País Vasco (UPV/EHU), Apartado 1072, 20080 San Sebastián, Spain, http://www.ehu.es
| | - Miguel A. Huertos
- Departamento de Química Aplicada, Universidad del País Vasco (UPV/EHU), Apartado 1072, 20080 San Sebastián, Spain, http://www.ehu.es
- IKERBASQUE, Basque Foundation for Science, 48013 Bilbao, Spain http://www.ikerbasque.net
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10
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Barquín M, Ciganda R, Garralda MA, Ibarlucea L, Mendicute‐Fierro C, Rodríguez‐Diéguez A, Seco JM. Iridium and Rhodium Complexes with the Hemilabile Ligand [2‐(1,3‐Dioxolane‐2‐yl)phenyl]diphenylphosphane – Behaviour in Solution and Structural Characterization. Eur J Inorg Chem 2012. [DOI: 10.1002/ejic.201201188] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Montserrat Barquín
- Facultad de Química de San Sebastián, Universidad del País Vasco, UPV/EHU, Apdo. 1072, 20080 San Sebastián, Spain, http://www.ehu.es
| | - Roberto Ciganda
- Facultad de Química de San Sebastián, Universidad del País Vasco, UPV/EHU, Apdo. 1072, 20080 San Sebastián, Spain, http://www.ehu.es
| | - María A. Garralda
- Facultad de Química de San Sebastián, Universidad del País Vasco, UPV/EHU, Apdo. 1072, 20080 San Sebastián, Spain, http://www.ehu.es
| | - Lourdes Ibarlucea
- Facultad de Química de San Sebastián, Universidad del País Vasco, UPV/EHU, Apdo. 1072, 20080 San Sebastián, Spain, http://www.ehu.es
| | - Claudio Mendicute‐Fierro
- Facultad de Química de San Sebastián, Universidad del País Vasco, UPV/EHU, Apdo. 1072, 20080 San Sebastián, Spain, http://www.ehu.es
| | | | - José M. Seco
- Facultad de Química de San Sebastián, Universidad del País Vasco, UPV/EHU, Apdo. 1072, 20080 San Sebastián, Spain, http://www.ehu.es
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11
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Barquín M, Garralda MA, Hernández R, Ibarlucea L, Mendicute‐Fierro C, Torralba MC, Torres MR, San Nacianceno V, Zumeta I. New Acylhydrido‐ and Diacylrhodium(III) Organocomplexes Derived from 8‐Quinolinecarbaldehyde and/or
o
‐(Diphenylphosphanyl)benzaldehyde. Eur J Inorg Chem 2011. [DOI: 10.1002/ejic.201100904] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Montserrat Barquín
- Facultad de Química de San Sebastián, Universidad del País Vasco, Apdo. 1072, 20080 San Sebastián, Spain
| | - María A. Garralda
- Facultad de Química de San Sebastián, Universidad del País Vasco, Apdo. 1072, 20080 San Sebastián, Spain
| | - Ricardo Hernández
- Facultad de Química de San Sebastián, Universidad del País Vasco, Apdo. 1072, 20080 San Sebastián, Spain
| | - Lourdes Ibarlucea
- Facultad de Química de San Sebastián, Universidad del País Vasco, Apdo. 1072, 20080 San Sebastián, Spain
| | - Claudio Mendicute‐Fierro
- Facultad de Química de San Sebastián, Universidad del País Vasco, Apdo. 1072, 20080 San Sebastián, Spain
| | - M. Carmen Torralba
- Departamento de Química Inorgánica, Laboratorio de Difracción de Rayos X, Facultad de Ciencias Químicas, Universidad Complutense, 28040 Madrid, Spain
| | - M. Rosario Torres
- Departamento de Química Inorgánica, Laboratorio de Difracción de Rayos X, Facultad de Ciencias Químicas, Universidad Complutense, 28040 Madrid, Spain
| | - Virginia San Nacianceno
- Facultad de Química de San Sebastián, Universidad del País Vasco, Apdo. 1072, 20080 San Sebastián, Spain
| | - Itziar Zumeta
- Facultad de Química de San Sebastián, Universidad del País Vasco, Apdo. 1072, 20080 San Sebastián, Spain
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