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Bracher F, Glas C, Wirawan R. A Short Approach to N-Aryl-1,2,3,4-tetrahydroisoquinolines from N-(2-Bromobenzyl)anilines via a Reductive Amination/Palladium-Catalyzed Ethoxyvinylation/Reductive N-Alkylation Sequence. SYNTHESIS-STUTTGART 2021. [DOI: 10.1055/s-0040-1706002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
Abstract
N-Aryl-1,2,3,4-tetrahydroisoquinolines are obtained via a convenient and short protocol with a broad range of substituents on both aromatic rings and high functional group tolerance. Starting from readily available ortho-brominated aromatic aldehydes and primary aromatic amines, condensation of these building blocks under reductive conditions gives N-aryl 2-bromobenzylamines. The C-3/C-4-unit of the tetrahydroisoquinoline is introduced using commercially available 2-ethoxyvinyl pinacolboronate under Suzuki conditions. Finally, the obtained crude ortho-ethoxyvinyl benzylamines are cyclized via an intramolecular reductive amination using the combination of triethylsilane/TFA to give the desired N-aryl-1,2,3,4-tetrahydroisoquinolines.
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Sawant DN, Bagal DB, Ogawa S, Selvam K, Saito S. Diboron-Catalyzed Dehydrative Amidation of Aromatic Carboxylic Acids with Amines. Org Lett 2018; 20:4397-4400. [PMID: 30020789 DOI: 10.1021/acs.orglett.8b01480] [Citation(s) in RCA: 54] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Tetrakis(dimethylamido)diboron and tetrahydroxydiboron are herein reported as new catalysts for the synthesis of aryl amides by catalytic condensation of aromatic carboxylic acids with amines. The developed protocol is both simple and highly efficient over a broad range of substrates. This method thus represents an attractive approach for the use of diboron catalysts in the synthesis of amides without having to resort to stoichiometric or additional dehydrating agents.
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Vlatković M, Collins BSL, Feringa BL. Dynamic Responsive Systems for Catalytic Function. Chemistry 2016; 22:17080-17111. [DOI: 10.1002/chem.201602453] [Citation(s) in RCA: 90] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2016] [Indexed: 12/22/2022]
Affiliation(s)
- Matea Vlatković
- Stratingh Institute for Chemistry; Synthetic Organic Chemistry Unit; Faculty of Mathematics and Natural Sciences; University of Groningen; Nijenborg 4 9747 Groningen The Netherlands
| | - Beatrice S. L. Collins
- Stratingh Institute for Chemistry; Synthetic Organic Chemistry Unit; Faculty of Mathematics and Natural Sciences; University of Groningen; Nijenborg 4 9747 Groningen The Netherlands
| | - Ben L. Feringa
- Stratingh Institute for Chemistry; Synthetic Organic Chemistry Unit; Faculty of Mathematics and Natural Sciences; University of Groningen; Nijenborg 4 9747 Groningen The Netherlands
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Raynal M, Ballester P, Vidal-Ferran A, van Leeuwen PWNM. Supramolecular catalysis. Part 2: artificial enzyme mimics. Chem Soc Rev 2013; 43:1734-87. [PMID: 24365792 DOI: 10.1039/c3cs60037h] [Citation(s) in RCA: 665] [Impact Index Per Article: 60.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
The design of artificial catalysts able to compete with the catalytic proficiency of enzymes is an intense subject of research. Non-covalent interactions are thought to be involved in several properties of enzymatic catalysis, notably (i) the confinement of the substrates and the active site within a catalytic pocket, (ii) the creation of a hydrophobic pocket in water, (iii) self-replication properties and (iv) allosteric properties. The origins of the enhanced rates and high catalytic selectivities associated with these properties are still a matter of debate. Stabilisation of the transition state and favourable conformations of the active site and the product(s) are probably part of the answer. We present here artificial catalysts and biomacromolecule hybrid catalysts which constitute good models towards the development of truly competitive artificial enzymes.
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Affiliation(s)
- Matthieu Raynal
- Institute of Chemical Research of Catalonia (ICIQ), Av. Països Catalans 16, 43007 Tarragona, Spain.
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Leibfarth FA, Mattson KM, Fors BP, Collins HA, Hawker CJ. Externe Regulation kontrollierter Polymerisationen. Angew Chem Int Ed Engl 2012. [DOI: 10.1002/ange.201206476] [Citation(s) in RCA: 80] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Leibfarth FA, Mattson KM, Fors BP, Collins HA, Hawker CJ. External Regulation of Controlled Polymerizations. Angew Chem Int Ed Engl 2012; 52:199-210. [DOI: 10.1002/anie.201206476] [Citation(s) in RCA: 359] [Impact Index Per Article: 29.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2012] [Indexed: 11/09/2022]
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Double Molecular Recognition with Aminoorganoboron Complexes: Selective Alcoholysis of β-Dicarbonyl Derivatives. Angew Chem Int Ed Engl 2012. [DOI: 10.1002/ange.201200304] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Oishi S, Saito S. Double Molecular Recognition with Aminoorganoboron Complexes: Selective Alcoholysis of β-Dicarbonyl Derivatives. Angew Chem Int Ed Engl 2012; 51:5395-9. [DOI: 10.1002/anie.201200304] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2012] [Revised: 02/23/2012] [Indexed: 11/06/2022]
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Pospiech S, Brough S, Bolte M, Lerner HW, Bettinger HF, Wagner M. An inorganic propellane with central B–B bond. Chem Commun (Camb) 2012; 48:5886-8. [DOI: 10.1039/c2cc32256k] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Du Y, Oishi S, Saito S. Selective N-alkylation of amines with alcohols by using non-metal-based acid-base cooperative catalysis. Chemistry 2011; 17:12262-7. [PMID: 21938751 DOI: 10.1002/chem.201102446] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2011] [Indexed: 11/09/2022]
Affiliation(s)
- Ya Du
- Department of Chemistry, Graduate School of Science, Nagoya University, Chikusa, Nagoya 464-8602, Japan
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Sakakura A, Ohkubo T, Yamashita R, Akakura M, Ishihara K. Brønsted Base-Assisted Boronic Acid Catalysis for the Dehydrative Intramolecular Condensation of Dicarboxylic Acids. Org Lett 2011; 13:892-5. [DOI: 10.1021/ol102926n] [Citation(s) in RCA: 59] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Akira Sakakura
- EcoTopia Science Institute, Nagoya University, Japan, Graduate School of Engineering, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, 464-8603, Japan, Department of Chemistry, Aichi University of Education, Japan, and JST, CREST, Japan
| | - Takuro Ohkubo
- EcoTopia Science Institute, Nagoya University, Japan, Graduate School of Engineering, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, 464-8603, Japan, Department of Chemistry, Aichi University of Education, Japan, and JST, CREST, Japan
| | - Risa Yamashita
- EcoTopia Science Institute, Nagoya University, Japan, Graduate School of Engineering, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, 464-8603, Japan, Department of Chemistry, Aichi University of Education, Japan, and JST, CREST, Japan
| | - Matsujiro Akakura
- EcoTopia Science Institute, Nagoya University, Japan, Graduate School of Engineering, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, 464-8603, Japan, Department of Chemistry, Aichi University of Education, Japan, and JST, CREST, Japan
| | - Kazuaki Ishihara
- EcoTopia Science Institute, Nagoya University, Japan, Graduate School of Engineering, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, 464-8603, Japan, Department of Chemistry, Aichi University of Education, Japan, and JST, CREST, Japan
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Tennyson AG, Lynch VM, Bielawski CW. Arrested Catalysis: Controlling Kumada Coupling Activity via a Redox-Active N-Heterocyclic Carbene. J Am Chem Soc 2010; 132:9420-9. [DOI: 10.1021/ja102686u] [Citation(s) in RCA: 123] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Andrew G. Tennyson
- Department of Chemistry and Biochemistry, The University of Texas at Austin, 1 University Station A5300, Austin, Texas 78712
| | - Vincent M. Lynch
- Department of Chemistry and Biochemistry, The University of Texas at Austin, 1 University Station A5300, Austin, Texas 78712
| | - Christopher W. Bielawski
- Department of Chemistry and Biochemistry, The University of Texas at Austin, 1 University Station A5300, Austin, Texas 78712
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