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Soria-Castro SM, Andrada DM, Caminos DA, Argüello JE, Robert M, Peñéñory AB. Mechanistic Insight into the Cu-Catalyzed C-S Cross-Coupling of Thioacetate with Aryl Halides: A Joint Experimental-Computational Study. J Org Chem 2018; 82:11464-11473. [PMID: 28960986 DOI: 10.1021/acs.joc.7b01991] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The mechanism of the Ullmann-type reaction between potassium thioacetate (KSAc) and iodobenzene (PhI) catalyzed by CuI associated with 1,10-phenanthroline (phen) as a ligand was explored experimentally and computationally. The study on C-S bond formation was investigated by UV-visible spectrophotometry, cyclic voltammetry, mass spectrometry, and products assessment from radical probes. The results indicate that under experimental conditions the catalytically active species is [Cu(phen)(SAc)] regardless of the copper source. An examination of the aryl halide activation mechanism using radical probes was undertaken. No evidence of the presence of radical species was found during the reaction process, which is consistent with an oxidative addition cross-coupling pathway. The different reaction pathways leading to the experimentally observed reaction products were studied by DFT calculation. The oxidative addition-reductive elimination mechanism via an unstable CuIII intermediate is energetically more feasible than other possible mechanisms such as single electron transfer, halogen atom transfer, and σ-bond methatesis.
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Affiliation(s)
- Silvia M Soria-Castro
- Departamento de Química Orgánica, Facultad de Ciencias Químicas, INFIQC, Universidad Nacional de Córdoba, CONICET , X5000HUA Córdoba, Argentina
| | - Diego M Andrada
- Philipps-Universität Marburg, Fachbereich Chemie , Hans-Meerwein straße 4, 35032 Marburg, Germany.,Krupp-Professur für Allgemeine und Anorganische Chemie, Universität des Saarlandes , 66123 Saarbrücken, Germany
| | - Daniel A Caminos
- Departamento de Química Orgánica, Facultad de Ciencias Químicas, INFIQC, Universidad Nacional de Córdoba, CONICET , X5000HUA Córdoba, Argentina
| | - Juan E Argüello
- Departamento de Química Orgánica, Facultad de Ciencias Químicas, INFIQC, Universidad Nacional de Córdoba, CONICET , X5000HUA Córdoba, Argentina
| | - Marc Robert
- Laboratoire d'Electrochimie Moléculaire, UMR 7591 CNRS, Université Paris Diderot, Sorbonne Paris Cité , 15 rue Jean-Antoine de Baïf, F-75205 Paris Cedex 13, France
| | - Alicia B Peñéñory
- Departamento de Química Orgánica, Facultad de Ciencias Químicas, INFIQC, Universidad Nacional de Córdoba, CONICET , X5000HUA Córdoba, Argentina
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Mehdid MA, Djafri A, Andreoli F, Vanthuyne N, Farran D, Niebler J, Buettner A, Giorgi M, Roussel C. Metathetic sulfur transfer mediated by N-(2-aminophenyl)-4-methyl-thiazolin-2-thione derivatives. Part III: An alkylthiol- and thioacid-free route to diversely substituted S-alkyl thioesters. Tetrahedron 2013. [DOI: 10.1016/j.tet.2013.04.013] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Qiu R, Meng Z, Yin S, Song X, Tan N, Zhou Y, Yu K, Xu X, Luo S, Au CT, Wong WY. Synthesis and Structure of Binuclear O/S-Bridged Organobismuth Complexes and Their Cooperative Catalytic Effect on CO2 Fixation. Chempluschem 2012. [DOI: 10.1002/cplu.201200030] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Qiu R, Chen Y, Yin SF, Xu X, Au CT. A mini-review on air-stable organometallic Lewis acids: synthesis, characterization, and catalytic application in organic synthesis. RSC Adv 2012. [DOI: 10.1039/c2ra21517a] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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Qiu R, Yin S, Song X, Meng Z, Qiu Y, Tan N, Xu X, Luo S, Dai FR, Au CT, Wong WY. Effect of butterfly-shaped sulfur-bridged ligand and counter anions on the catalytic activity and diastereoselectivity of organobismuth complexes. Dalton Trans 2011; 40:9482-9. [DOI: 10.1039/c0dt01419b] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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