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Chicote MT, Saura-Llamas I, García-Yuste MF, Bautista D, Vicente J. Insertion reactions of isocyanides into the Metal-C(sp3) bonds of ylide complexes. J Organomet Chem 2019. [DOI: 10.1016/j.jorganchem.2019.05.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Perego LA, Fleurat-Lessard P, El Kaïm L, Ciofini I, Grimaud L. Multiple Roles of Isocyanides in Palladium-Catalyzed Imidoylative Couplings: A Mechanistic Study. Chemistry 2016; 22:15491-15500. [PMID: 27606503 DOI: 10.1002/chem.201602913] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2016] [Indexed: 11/08/2022]
Abstract
Kinetic, spectroscopic and computational studies examining a palladium-catalyzed imidoylative coupling highlight the dual role of isocyanides as both substrates and ligands for this class of transformations. The synthesis of secondary amides from aryl halides and water is presented as a case study. The kinetics of the oxidative addition of ArI with RNC-ligated Pd0 species have been studied and the resulting imidoyl complex [(ArC=NR)Pd(CNR)2 I] (Ar=4-F-C6 H4 , R=tBu) has been isolated and characterized by X-ray diffraction. The unprecedented ability of this RNC-ligated imidoyl-Pd complex to undergo reductive elimination at room temperature to give the amide in the presence of water and an F- /HF buffer is demonstrated. Its behavior in solution has also been characterized, revealing an unexpected strong tendency to give cationic complexes, and notably [(ArC=NR)Pd(CNR)3 ]+ with excess isocyanide and [(ArC=NR)Pd(PP^ )(CNR)]+ with bidentate phosphines (PP^ ). These species may be responsible for catalyst deactivation and side-reactions. Ab initio calculations performed at the DFT level allowed us to rationalize the multiple roles of RNC in the different steps of the catalytic cycle.
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Affiliation(s)
- Luca A Perego
- Ecole Normale Supérieure, PSL Research University, UPMC Univ Paris 06, CNRS, Département de Chimie, PASTEUR, 24, rue Lhomond, 75005, Paris, France. .,Sorbonne Universités, UPMC Univ Paris 06, ENS, CNRS, PASTEUR, 75005, Paris, France. .,Institut de Recherche de Chimie Paris, CNRS-Chimie, ParisTech, UMR 8247, 11 rue Pierre et Marie Curie, 75005, Paris, France.
| | - Paul Fleurat-Lessard
- Institut de Chimie Moléculaire de l'Université de Bourgogne, Université de Bourgogne, UMR-CNRS 6302, Université de Bourgogne Franche-Comté, 9, avenue Alain Savary, 21078, Dijon, France
| | - Laurent El Kaïm
- Laboratoire LSO ENSTA-Polytechnique-CNRS, UMR 7652, Ecole Nationale Supérieure de Techniques Avancées, 628 Bd des Maréchaux, 91120, Palaiseau, France
| | - Ilaria Ciofini
- Institut de Recherche de Chimie Paris, CNRS-Chimie, ParisTech, UMR 8247, 11 rue Pierre et Marie Curie, 75005, Paris, France.
| | - Laurence Grimaud
- Ecole Normale Supérieure, PSL Research University, UPMC Univ Paris 06, CNRS, Département de Chimie, PASTEUR, 24, rue Lhomond, 75005, Paris, France. .,Sorbonne Universités, UPMC Univ Paris 06, ENS, CNRS, PASTEUR, 75005, Paris, France.
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Oliva-Madrid MJ, Garcı́a-López JA, Saura-Llamas I, Bautista D, Vicente J. Reactivity of Eight-Membered Palladacycles Arising from Monoinsertion of Alkynes into the Pd–C bond of Ortho-Palladated Phenethylamines toward Unsaturated Molecules. Synthesis of Dihydro-3-Benzazocinones, N7-amino Acids, N7-amino Esters, and 3-Benzazepines. Organometallics 2013. [DOI: 10.1021/om4010059] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- María-José Oliva-Madrid
- Grupo de Quı́mica
Organometálica,
Departamento de Quı́mica Inorgánica, Universidad de Murcia, Apartado 4021, 30071 Murcia, Spain
| | - José-Antonio Garcı́a-López
- Grupo de Quı́mica
Organometálica,
Departamento de Quı́mica Inorgánica, Universidad de Murcia, Apartado 4021, 30071 Murcia, Spain
| | - Isabel Saura-Llamas
- Grupo de Quı́mica
Organometálica,
Departamento de Quı́mica Inorgánica, Universidad de Murcia, Apartado 4021, 30071 Murcia, Spain
| | - Delia Bautista
- SAI, Universidad de Murcia. Apartado 4021, 30071 Murcia, Spain
| | - José Vicente
- Grupo de Quı́mica
Organometálica,
Departamento de Quı́mica Inorgánica, Universidad de Murcia, Apartado 4021, 30071 Murcia, Spain
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Martı́nez-Martı́nez AJ, Chicote MT, Bautista D, Vicente J. Synthesis of Palladium(II), -(III), and -(IV) Complexes with Acyclic Diaminocarbene Ligands. Organometallics 2012. [DOI: 10.1021/om300201s] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Affiliation(s)
- Antonio-Jesús Martı́nez-Martı́nez
- Grupo de Quı́mica
Organometálica, Departamento
de Quı́mica Inorgánica, Facultad de
Quı́mica, Universidad de Murcia, Apartado 4021, 30071 Murcia, Spain
| | - María-Teresa Chicote
- Grupo de Quı́mica
Organometálica, Departamento
de Quı́mica Inorgánica, Facultad de
Quı́mica, Universidad de Murcia, Apartado 4021, 30071 Murcia, Spain
| | - Delia Bautista
- SAI, Facultad de
Quı́mica, Universidad de Murcia, Apartado 4021, 30071 Murcia,
Spain
| | - José Vicente
- Grupo de Quı́mica
Organometálica, Departamento
de Quı́mica Inorgánica, Facultad de
Quı́mica, Universidad de Murcia, Apartado 4021, 30071 Murcia, Spain
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