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Tagami K, Nakayama M, Kanbara T, Cahard D, Yajima T. 10-Phenylphenothiazine-Organophotocatalyzed Bromo-Perfluoroalkylation of Unactivated Olefins. J Org Chem 2024; 89:7084-7094. [PMID: 38663869 DOI: 10.1021/acs.joc.4c00470] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/18/2024]
Abstract
In this study, we have developed a smooth metal-free visible-light-induced bromo-perfluoroalkylation of unactivated olefins with the aid of 10-phenylphenothiazine (PTH) as an organic photoredox catalyst. The reaction is 100% atom-economic redox-neutral and proceeds with stoichiometric amounts of olefin and perfluoroalkyl bromide. To show the potential of these unexplored motifs, we carried out various postfunctionalizations taking advantage of the bromine atom, including gram-scale experiments.
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Affiliation(s)
- Koto Tagami
- Department of Chemistry, Ochanomizu University, Tokyo 112-8610, Japan
- CNRS, UMR 6014 COBRA, Univ Rouen Normandie, INSA Rouen, Normandie Univ, INC3M FR 3038, F-76000 Rouen, France
| | - Moeko Nakayama
- Department of Chemistry, Ochanomizu University, Tokyo 112-8610, Japan
| | - Tadashi Kanbara
- Department of Chemistry, Ochanomizu University, Tokyo 112-8610, Japan
| | - Dominique Cahard
- CNRS, UMR 6014 COBRA, Univ Rouen Normandie, INSA Rouen, Normandie Univ, INC3M FR 3038, F-76000 Rouen, France
| | - Tomoko Yajima
- Department of Chemistry, Ochanomizu University, Tokyo 112-8610, Japan
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Turani-I-Belloto K, Chiriac R, Toche F, Petit E, Yot PG, Alauzun JG, Demirci UB. Synthesis: Molecular Structure, Thermal-Calorimetric and Computational Analyses, of Three New Amine Borane Adducts. Molecules 2023; 28:molecules28031469. [PMID: 36771135 PMCID: PMC9921861 DOI: 10.3390/molecules28031469] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2023] [Revised: 01/30/2023] [Accepted: 01/31/2023] [Indexed: 02/05/2023] Open
Abstract
Cyclopropylamine borane C3H5NH2BH3 (C3AB), 2-ethyl-1-hexylamine borane CH3(CH2)3CH(C2H5)CH2NH2BH3 (C2C6AB) and didodecylamine borane (C12H25)2NHBH3 ((C12)2AB) are three new amine borane adducts (ABAs). They are synthesized by reaction of the corresponding amines with a borane complex, the reaction being exothermic as shown by Calvet calorimetry. The successful synthesis of each has been demonstrated by FTIR, Raman and NMR. For instance, the 11B NMR spectra show the presence of signals typical of the NBH3 environment, thereby implying the formation of B-N bonds. The occurrence of dihydrogen bonds (DHBs) for each of the ABAs has been highlighted by DSC and FTIR, and supported by DFT calculations (via the Mulliken charges for example). When heated, the three ABAs behave differently: C3AB and C2C6AB decompose from 68 to 100 °C whereas (C12)2AB is relatively stable up to 173 °C. That means that these ABAs are not appropriate as hydrogen carriers, but the 'most' stable (C12)2AB could open perspectives for the synthesis of advanced materials.
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Affiliation(s)
- Kevin Turani-I-Belloto
- Institut Europeen des Membranes, IEM–UMR 5635, ENSCM, CNRS, Universite de Montpellier, 34090 Montpellier, France
| | - Rodica Chiriac
- Laboratoire des Multimateriaux et Interfaces, UMR CNRS 5615, Université Claude Bernard Lyon 1, 69622 Villeurbanne, France
| | - François Toche
- Laboratoire des Multimateriaux et Interfaces, UMR CNRS 5615, Université Claude Bernard Lyon 1, 69622 Villeurbanne, France
| | - Eddy Petit
- Institut Europeen des Membranes, IEM–UMR 5635, ENSCM, CNRS, Universite de Montpellier, 34090 Montpellier, France
| | - Pascal G. Yot
- ICGM, Universite de Montpellier, CNRS, ENSCM, 34293 Montpellier, France
| | - Johan G. Alauzun
- ICGM, Universite de Montpellier, CNRS, ENSCM, 34293 Montpellier, France
| | - Umit B. Demirci
- Institut Europeen des Membranes, IEM–UMR 5635, ENSCM, CNRS, Universite de Montpellier, 34090 Montpellier, France
- Correspondence:
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Turani‐I‐Belloto K, Valero‐Pedraza M, Petit E, Chiriac R, Toche F, Granier D, Yot PG, Alauzun JG, Demirci UB. Solid‐State Structures of Primary Long‐Chain Alkylamine Borane Adducts – Synthesis, Properties and Computational Analysis. ChemistrySelect 2022. [DOI: 10.1002/slct.202203533] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Affiliation(s)
- Kevin Turani‐I‐Belloto
- Institut Europeen des Membranes IEM – UMR 5635 Universite de Montpellier, ENSCM, CNRS 34090 France
| | | | - Eddy Petit
- Institut Europeen des Membranes IEM – UMR 5635 Universite de Montpellier, ENSCM, CNRS 34090 France
| | - Rodica Chiriac
- Laboratoire des Multimateriaux et Interfaces UMR CNRS 5615 Univ Lyon 1 Université Claude Bernard Lyon 1 F 69622 Villeurbanne France
| | - François Toche
- Laboratoire des Multimateriaux et Interfaces UMR CNRS 5615 Univ Lyon 1 Université Claude Bernard Lyon 1 F 69622 Villeurbanne France
| | - Dominique Granier
- Institut Charles Gerhardt Univ. Montpellier CNRS, ENSCM Montpellier France
| | - Pascal G. Yot
- Institut Charles Gerhardt Univ. Montpellier CNRS, ENSCM Montpellier France
| | - Johan G. Alauzun
- Institut Charles Gerhardt Univ. Montpellier CNRS, ENSCM Montpellier France
| | - Umit B. Demirci
- Institut Europeen des Membranes IEM – UMR 5635 Universite de Montpellier, ENSCM, CNRS 34090 France
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