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Nuñez Bahena E, Hosseini K, Curto SG, Schafer LL. Understanding mechanism driven regioselectivity in zirconium-catalysed hydroaminoalkylation: homoallylic amines from conjugated dienes. Chem Sci 2024; 15:10571-10576. [PMID: 38994433 PMCID: PMC11234830 DOI: 10.1039/d4sc00636d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2024] [Accepted: 05/27/2024] [Indexed: 07/13/2024] Open
Abstract
The unexpected 4,1-hydroaminoalkylation of dienes provides selective access to linear homoallylic amines by zirconium catalysis. This switch from the traditional branched preferred regioselectivity to selective linear product formation using this early transition metal can be attributed to π-allyl intermediates. The reactivity of these isolated intermediates on a sterically accessible and coordinatively flexible chelating bis(ureate) Zr(iv) complex confirmed reversible C-C bond formation in hydroaminoalkylation catalysis.
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Affiliation(s)
- Erick Nuñez Bahena
- Department of Chemistry, University of British Columbia 2036 Main Mall Vancouver British Columbia Canada V6T 1Z1
| | - Kimia Hosseini
- Department of Chemistry, University of British Columbia 2036 Main Mall Vancouver British Columbia Canada V6T 1Z1
| | - Sheila Galván Curto
- Department of Chemistry, University of British Columbia 2036 Main Mall Vancouver British Columbia Canada V6T 1Z1
| | - Laurel L Schafer
- Department of Chemistry, University of British Columbia 2036 Main Mall Vancouver British Columbia Canada V6T 1Z1
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2
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Li S, Jiao H, Shu XZ, Wu L. Zirconium and hafnium catalyzed C-C single bond hydroboration. Nat Commun 2024; 15:1846. [PMID: 38418499 PMCID: PMC10902336 DOI: 10.1038/s41467-024-45697-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2023] [Accepted: 02/01/2024] [Indexed: 03/01/2024] Open
Abstract
Selective cleavage and subsequent functionalization of C-C single bonds present a fundamental challenge in synthetic organic chemistry. Traditionally, the activation of C-C single bonds has been achieved using stoichiometric transition-metal complexes. Recently, examples of catalytic processes were developed in which use is made of precious metals. However, the use of inexpensive and Earth-abundant group IV metals for catalytic C-C single-bond cleavage is largely underdeveloped. Herein, the zirconium-catalyzed C-C single-bond cleavage and subsequent hydroboration reactions is realized using Cp2ZrCl2 as a catalytic system. A series of structures of various γ-boronated amines are readily obtained, which are otherwise difficult to obtain. Mechanistic studies disclose the formation of a N-ZrIV species, and then a β-carbon elimination route is responsible for C-C single bond activation. Besides zirconium, hafnium exhibits a similar performance for this transformation.
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Affiliation(s)
- Sida Li
- State Key Laboratory for Oxo Synthesis and Selective Oxidation, Lanzhou Institute of Chemical Physics (LICP), Chinese Academy of Sciences, Lanzhou, 730000, PR China
- University of Chinese Academy of Sciences, Beijing, 100049, PR China
| | - Haijun Jiao
- Leibniz-Institut für Katalyse e. V., Albert-Einstein-Straße 29a, 18059, Rostock, Germany.
| | - Xing-Zhong Shu
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, 730000, PR China
| | - Lipeng Wu
- State Key Laboratory for Oxo Synthesis and Selective Oxidation, Lanzhou Institute of Chemical Physics (LICP), Chinese Academy of Sciences, Lanzhou, 730000, PR China.
- College of Material Chemistry and Chemical Engineering, Key Laboratory of Organosilicon Chemistry and Material Technology, Ministry of Education, Hangzhou Normal University, Hangzhou, 311121, PR China.
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3
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Zou S, Zhao Z, Huang H. Palladium-Catalyzed Aminoalkylative Cyclization Enables Modular Synthesis of Exocyclic 1,3-Dienes. Angew Chem Int Ed Engl 2023; 62:e202311603. [PMID: 37815155 DOI: 10.1002/anie.202311603] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2023] [Revised: 10/07/2023] [Accepted: 10/09/2023] [Indexed: 10/11/2023]
Abstract
A novel and efficient palladium-catalyzed regioselective and stereodivergent ring-closing reaction of aminoenynes with aldehydes and boronic acids or hydrosilane is developed. This three-component reaction allows for the modular synthesis of a series of exocyclic 1,3-dienes bearing 5- to 8-membered saturated N-heterocycles. The reactions utilize a simple Pd-catalyst and work with broad range of aminoenynes, aldehydes and organometallic reagents under mild reaction conditions. The products represent useful intermediates for chemical synthesis due to the versatility of the conjugated diene. Preliminary mechanistic details of the method are also revealed.
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Affiliation(s)
- Suchen Zou
- Key Laboratory of Precision and Intelligent Chemistry and Department of Chemistry, University of Science and Technology of China, Hefei, 230026, P. R. China
| | - Zeyu Zhao
- Key Laboratory of Precision and Intelligent Chemistry and Department of Chemistry, University of Science and Technology of China, Hefei, 230026, P. R. China
| | - Hanmin Huang
- Key Laboratory of Precision and Intelligent Chemistry and Department of Chemistry, University of Science and Technology of China, Hefei, 230026, P. R. China
- Key Laboratory of Green and Precise Synthetic Chemistry and Applications, Ministry of Education, Huaibei Normal University, Huaibei, Anhui, 235000, P. R. China
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4
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Thoben N, Kaper T, de Graaff S, Gerhards L, Schmidtmann M, Klüner T, Beckhaus R, Doye S. Density Functional Theory Calculations for Multiple Conformers Explaining the Regio- and Stereoselectivity of Ti-Catalyzed Hydroaminoalkylation Reactions. Chemphyschem 2023; 24:e202300370. [PMID: 37326019 DOI: 10.1002/cphc.202300370] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2023] [Revised: 06/16/2023] [Accepted: 06/16/2023] [Indexed: 06/17/2023]
Abstract
Hybrid Density Functional Theory (DFT) calculations for multiple conformers of the insertion reactions of a methylenecyclopropane into the Ti-C bond of two differently α-substituted titanaaziridines explain the experimentally observed differences in regioselectivity between catalytic hydroaminoalkylation reactions of methylenecyclopropanes with α-phenyl-substituted secondary amines and corresponding stoichiometric reactions of a methylenecyclopropane with titanaaziridines, which can only be achieved with α-unsubstituted titanaaziridines. In addition, the lack of reactivity of α-phenyl-substituted titanaaziridines as well as the diastereoselectivity of the catalytic and stoichiometric reactions can be understood.
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Affiliation(s)
- Niklas Thoben
- Institut für Chemie, Universität Oldenburg, Carl-von-Ossietzky-Strasse 9-11, 26129, Oldenburg, Germany
| | - Tobias Kaper
- Institut für Chemie, Universität Oldenburg, Carl-von-Ossietzky-Strasse 9-11, 26129, Oldenburg, Germany
| | - Simon de Graaff
- Institut für Chemie, Universität Oldenburg, Carl-von-Ossietzky-Strasse 9-11, 26129, Oldenburg, Germany
| | - Luca Gerhards
- Institut für Physik, Universität Oldenburg, Carl-von-Ossietzky-Strasse 9-11, 26129, Oldenburg, Germany
| | - Marc Schmidtmann
- Institut für Chemie, Universität Oldenburg, Carl-von-Ossietzky-Strasse 9-11, 26129, Oldenburg, Germany
| | - Thorsten Klüner
- Institut für Chemie, Universität Oldenburg, Carl-von-Ossietzky-Strasse 9-11, 26129, Oldenburg, Germany
| | - Rüdiger Beckhaus
- Institut für Chemie, Universität Oldenburg, Carl-von-Ossietzky-Strasse 9-11, 26129, Oldenburg, Germany
| | - Sven Doye
- Institut für Chemie, Universität Oldenburg, Carl-von-Ossietzky-Strasse 9-11, 26129, Oldenburg, Germany
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5
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Hao H, Manßen M, Schafer LL. Tantalum ureate complexes for photocatalytic hydroaminoalkylation. Chem Sci 2023; 14:4928-4934. [PMID: 37181785 PMCID: PMC10171191 DOI: 10.1039/d3sc00042g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2023] [Accepted: 03/13/2023] [Indexed: 05/16/2023] Open
Abstract
Using a tantalum ureate pre-catalyst, photocatalytic hydroaminoalkylation of unactivated alkenes with unprotected amines at room temperature is demonstrated. The combination of Ta(CH2SiMe3)3Cl2 and a ureate ligand with a saturated cyclic backbone resulted in this unique reactivity. Preliminary investigations of the reaction mechanism suggest that both the thermal and photocatalytic hydroaminoalkylation reactions begin with N-H bond activation and subsequent metallaaziridine formation. However, a select tantalum ureate complex, through ligand to metal charge transfer (LMCT), results in photocatalyzed homolytic metal-carbon bond cleavage and subsequent addition to unactivated alkene to afford the desired carbon-carbon bond formation. Origins of ligand effects on promoting homolytic metal-carbon bond cleavage are explored computationally to support enhanced ligand design efforts.
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Affiliation(s)
- Han Hao
- Department of Chemistry, University of Toronto Toronto Ontario M5S 3H6 Canada
| | - Manfred Manßen
- Institut für Anorganische Chemie, Eberhard Karls Universität Tübingen Auf der Morgenstelle 18 72076 Tübingen Germany
| | - Laurel L Schafer
- Department of Chemistry, University of British Columbia Vancouver British Columbia V6T 1Z4 Canada
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6
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Han B, Ren C, Wu L. Titanium-Catalyzed Hydrodehalogenation of Alkyl Halides. Organometallics 2023. [DOI: 10.1021/acs.organomet.2c00632] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/06/2023]
Affiliation(s)
- Bo Han
- State Key Laboratory for Oxo Synthesis and Selective Oxidation, Lanzhou Institute of Chemical Physics (LICP), Chinese Academy of Sciences, Lanzhou 730000, People’s Republic of China
- University of Chinese Academy of Sciences, Beijing 100049, People’s Republic of China
| | - Chunping Ren
- State Key Laboratory for Oxo Synthesis and Selective Oxidation, Lanzhou Institute of Chemical Physics (LICP), Chinese Academy of Sciences, Lanzhou 730000, People’s Republic of China
| | - Lipeng Wu
- State Key Laboratory for Oxo Synthesis and Selective Oxidation, Lanzhou Institute of Chemical Physics (LICP), Chinese Academy of Sciences, Lanzhou 730000, People’s Republic of China
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7
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Zhong K, Liu S, He X, Ni H, Lai W, Gong W, Shan C, Zhao Z, Lan Y, Bai R. Oxidative cyclopalladation triggers the hydroalkylation of alkynes. CHINESE CHEM LETT 2023. [DOI: 10.1016/j.cclet.2023.108339] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/17/2023]
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8
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Wang X, Patureau FW. Pd-catalyzed access to mono- and di-fluoroallylic amines from primary anilines. Chem Commun (Camb) 2023; 59:486-489. [PMID: 36530134 PMCID: PMC9814328 DOI: 10.1039/d2cc05844h] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
The Pd-catalyzed highly selective synthesis of mono- and di-2-fluoroallylic amines from gem-difluorocyclopropanes and ubiquitous unprotected primary anilines is herein described. Initial kinetic investigations suggest a first order in the gem-difluorocyclopropane substrate, as well as a circa zeroth order in the aniline coupling partner. The newly produced fluoroallylic motifs should find important applications in synthetic as well as medicinal chemistry and stimulate the further development of coupling methods based on strained cyclic building blocks.
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Affiliation(s)
- Xingben Wang
- Institute of Organic Chemistry, RWTH Aachen UniversityLandoltweg 1Aachen 52074Germanyhttps://www.patureau-oc-rwth-aachen.de
| | - Frederic W. Patureau
- Institute of Organic Chemistry, RWTH Aachen UniversityLandoltweg 1Aachen 52074Germanyhttps://www.patureau-oc-rwth-aachen.de
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9
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Early transition metal complexes for direct C H bond functionalization of heteroatom-containing organic compounds. Coord Chem Rev 2022. [DOI: 10.1016/j.ccr.2022.214810] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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10
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Nuñez Bahena E, Schafer LL. From Stoichiometric to Catalytic E–H Functionalization by Non-Metallocene Zirconium Complexes─Recent Advances and Mechanistic Insights. ACS Catal 2022. [DOI: 10.1021/acscatal.2c04308] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Affiliation(s)
- Erick Nuñez Bahena
- Department of Chemistry, University of British Columbia, Vancouver, British Columbia V6T 1Z1, Canada
| | - Laurel L. Schafer
- Department of Chemistry, University of British Columbia, Vancouver, British Columbia V6T 1Z1, Canada
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11
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Kaper T, Elma A, Thye H, Knupe-Wolfgang P, Zimmering R, Schmidtmann M, Doye S. Titanium‐Catalyzed Intermolecular Hydroaminoalkylation of Allenes and Methylenecyclopropanes. European J Org Chem 2022. [DOI: 10.1002/ejoc.202200991] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Tobias Kaper
- Carl-von-Ossietzky-Universitat Oldenburg: Carl von Ossietzky Universitat Oldenburg Institut für Chemie GERMANY
| | - Aylişa Elma
- Carl-von-Ossietzky-Universitat Oldenburg: Carl von Ossietzky Universitat Oldenburg Institut für Chemie GERMANY
| | - Hermann Thye
- Carl-von-Ossietzky-Universitat Oldenburg: Carl von Ossietzky Universitat Oldenburg Institut für Chemie GERMANY
| | - Paula Knupe-Wolfgang
- Carl-von-Ossietzky-Universitat Oldenburg: Carl von Ossietzky Universitat Oldenburg Institut für Chemie GERMANY
| | - René Zimmering
- Carl-von-Ossietzky-Universitat Oldenburg: Carl von Ossietzky Universitat Oldenburg Institut für Chemie GERMANY
| | - Marc Schmidtmann
- Carl-von-Ossietzky-Universitat Oldenburg: Carl von Ossietzky Universitat Oldenburg Institut für Chemie GERMANY
| | - Sven Doye
- Universitaet Oldenburg Institut fuer Chemie Carl-von-Ossietzky-Strasse 9-11 26129 Oldenburg GERMANY
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12
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Peng L, Zhao Y, Yang T, Tong Z, Tang Z, Orita A, Qiu R. Zirconium-Based Catalysts in Organic Synthesis. Top Curr Chem (Cham) 2022; 380:41. [PMID: 35951161 DOI: 10.1007/s41061-022-00396-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2021] [Accepted: 06/07/2022] [Indexed: 11/30/2022]
Abstract
Zirconium is a silvery-white malleable and ductile metal at room temperature with a crustal abundance of 162 ppm. Its compounds, showing Lewis acidic behavior and high catalytic performance, have been recognized as a relatively cheap, low-toxicity, stable, green, and efficient catalysts for various important organic transformations. Commercially available inorganic zirconium chloride was widely applied as a catalyst to accelerate amination, Michael addition, and oxidation reactions. Well-designed zirconocene perfluorosulfonates can be applied in allylation, acylation, esterification, etc. N-Chelating oganozirconium complexes accelerate polymerization, hydroaminoalkylation, and CO2 fixation efficiently. In this review, the applications of both commercially available and synthesized zirconium catalysts in organic reactions in the last 5 years are highlighted. Firstly, the properties and application of zirconium and its compounds are simply introduced. After presenting the superiority of zirconium compounds, their applications as catalysts to accelerate organic transformations are classified and presented in detail. On the basis of different kinds of zirconium catalysts, organic reactions accelerated by inorganic zirconium catalysts, zirconium catalysts bearing Cp, and organozirconium catalysts without Cp are summarized, and the plausible reaction mechanisms are presented if available.
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Affiliation(s)
- Lifen Peng
- Key Laboratory of Theoretical Organic Chemistry and Functional Molecule of Ministry of Education, Hunan Provincial Key Laboratory of Controllable Preparation and Functional Application of Fine Polymers, School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan, 411201, Hunan, China.,State Key Laboratory of Chemo/Biosensing and Chemometrics, Advanced Catalytic Engineering Research Center of the Ministry of Education, College of Chemistry and Chemical Engineering, Hunan University, Changsha, 410082, China.,Department of Applied Chemistry and Biotechnology, Okayama University of Science, 1-1 Ridai-cho, Kita-ku, Okayama, 700-0005, Japan
| | - Yanting Zhao
- Key Laboratory of Theoretical Organic Chemistry and Functional Molecule of Ministry of Education, Hunan Provincial Key Laboratory of Controllable Preparation and Functional Application of Fine Polymers, School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan, 411201, Hunan, China
| | - Tianbao Yang
- State Key Laboratory of Chemo/Biosensing and Chemometrics, Advanced Catalytic Engineering Research Center of the Ministry of Education, College of Chemistry and Chemical Engineering, Hunan University, Changsha, 410082, China
| | - Zhou Tong
- State Key Laboratory of Chemo/Biosensing and Chemometrics, Advanced Catalytic Engineering Research Center of the Ministry of Education, College of Chemistry and Chemical Engineering, Hunan University, Changsha, 410082, China
| | - Zilong Tang
- Key Laboratory of Theoretical Organic Chemistry and Functional Molecule of Ministry of Education, Hunan Provincial Key Laboratory of Controllable Preparation and Functional Application of Fine Polymers, School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan, 411201, Hunan, China.
| | - Akihiro Orita
- Department of Applied Chemistry and Biotechnology, Okayama University of Science, 1-1 Ridai-cho, Kita-ku, Okayama, 700-0005, Japan.
| | - Renhua Qiu
- State Key Laboratory of Chemo/Biosensing and Chemometrics, Advanced Catalytic Engineering Research Center of the Ministry of Education, College of Chemistry and Chemical Engineering, Hunan University, Changsha, 410082, China.
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DiPucchio RC, Rosca SC, Schafer LL. Hydroaminoalkylation for the Catalytic Addition of Amines to Alkenes or Alkynes: Diverse Mechanisms Enable Diverse Substrate Scope. J Am Chem Soc 2022; 144:11459-11481. [PMID: 35731810 DOI: 10.1021/jacs.1c10397] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
Hydroaminoalkylation is a powerful, atom-economic catalytic reaction for the reaction of amines with alkenes and alkynes. This C-H functionalization reaction allows for the atom-economic alkylation of amines using simple alkenes or alkynes as the alkylating agents. This transformation has significant potential for transformative approaches in the pharmaceutical, agrochemical, and fine chemical industries in the preparation of selectively substituted amines and N-heterocycles and shows promise in materials science for the synthesis of functional and responsive aminated materials. Different early transition-metal, late transition-metal, and photoredox catalysts mediate hydroaminoalkylation by distinct mechanistic pathways. These mechanistic insights have resulted in the development of new catalysts and reaction conditions to realize hydroaminoalkylation with a broad range of substrates: activated and unactivated, terminal and internal, C-C double and triple bonds with aryl or alkyl primary, secondary, or tertiary amines, including N-heterocyclic amines. By deploying select catalysts with specific substrate combinations, control over regioselectivity, diastereoselectivity, and enantioselectivity has been realized. Key barriers to widespread adoption of this reaction include air and moisture sensitivity for early transition-metal catalysts as well as a heavy dependence on amine protecting or directing groups for late transition-metal or photocatalytic routes. Advances in improved catalyst robustness, substrate scope, and regio-/stereoselective reactions with early- and late transition-metal catalysts, as well as photoredox catalysis, are highlighted, and opportunities for further catalyst and reaction development are included. This perspective shows that hydroaminoalkylation has the potential to be a disruptive and transformative strategy for the synthesis of selectively substituted amines and N-heterocycles from simple amines and alkenes.
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Affiliation(s)
- Rebecca C DiPucchio
- Department of Chemistry, The University of British Columbia, Vancouver, BC, Canada, V6T 1Z1
| | - Sorin-Claudiu Rosca
- Department of Chemistry, The University of British Columbia, Vancouver, BC, Canada, V6T 1Z1
| | - Laurel L Schafer
- Department of Chemistry, The University of British Columbia, Vancouver, BC, Canada, V6T 1Z1
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14
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Theoretical studies on Mn-catalyzed intermolecular allylic C-H aminations of internal olefins: mechanism, chemo- and regioselectivity. MOLECULAR CATALYSIS 2022. [DOI: 10.1016/j.mcat.2022.112278] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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15
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Li JY, Li L, Shi H, Lin YZ. External-Ligand-Free, Nickel-Catalyzed Alkenylation of N-Sulfonylamines with Internal Alkynes. SYNTHESIS-STUTTGART 2022. [DOI: 10.1055/s-0040-1719913] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
AbstractAllylic amines were synthesized via a nickel-catalyzed coupling reaction between various N-sulfonylamines and internal alkynes. The catalytic reaction was by-product-free and proceeded without the need for additional oxidant/reductant or activating reagent. As improvements over established methods, the present approach avoids the need for an external ligand, which increases the value of the approach with respect to atom economy, and it uses bench-stable Ni(II)Br2(dme) instead of Ni(0)(COD)2 as the source of the nickel catalyst. Mechanistic studies revealed that a catalytic amount of a strong base (i.e., KO
t
Bu) was essential for the formation of active Ni(0) catalyst, which, along with an imine intermediate, then initiated the catalytic cycle.
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Affiliation(s)
- Jia-Yue Li
- Zhejiang University
- Key Laboratory of Precise Synthesis of Functional Molecules of Zhejiang Province, School of Science, Westlake University
| | - Lun Li
- Key Laboratory of Precise Synthesis of Functional Molecules of Zhejiang Province, School of Science, Westlake University
| | - Hang Shi
- Key Laboratory of Precise Synthesis of Functional Molecules of Zhejiang Province, School of Science, Westlake University
- Institute of Natural Sciences, Westlake Institute for Advanced Study
| | - Yun-Zhi Lin
- Key Laboratory of Precise Synthesis of Functional Molecules of Zhejiang Province, School of Science, Westlake University
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16
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Bahena EN, Patrick BO, Schafer LL. Reversible C–H Activation in Zirconaaziridine Species: Characterization and Bonding of a Bridging (Amino)alkylidene Complex Active in Alkyne Hydroaminoalkylation. Organometallics 2022. [DOI: 10.1021/acs.organomet.2c00057] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Affiliation(s)
- Erick Nuñez Bahena
- Department of Chemistry, University of British Columbia, 2036 Main Mall, Vancouver, British Columbia, Canada V6T 1Z1
| | - Brian O. Patrick
- Department of Chemistry, University of British Columbia, 2036 Main Mall, Vancouver, British Columbia, Canada V6T 1Z1
| | - Laurel L. Schafer
- Department of Chemistry, University of British Columbia, 2036 Main Mall, Vancouver, British Columbia, Canada V6T 1Z1
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17
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Jiang B, Shi SL. Recent Progress in Upgrading of Alcohol and Amine via Asymmetric Dehydrogenative Coupling. CHINESE J ORG CHEM 2022. [DOI: 10.6023/cjoc202207002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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18
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Kaper T, Geik D, Fornfeist F, Schmidtmann M, Doye S. Stereoselective Synthesis of Tertiary Allylic Amines by Titanium-Catalyzed Hydroaminoalkylation of Alkynes with Tertiary Amines. Chemistry 2021; 28:e202103931. [PMID: 34936144 PMCID: PMC9303398 DOI: 10.1002/chem.202103931] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2021] [Indexed: 12/01/2022]
Abstract
Intermolecular hydroaminoalkylation reactions of symmetrical and unsymmetrical alkynes with tertiary amines take place in the presence of catalytic amounts of TiBn4, Ph3C[B(C6F5)4], and a sterically demanding aminopyridinato ligand precursor. The resulting products, synthetically and pharmaceutically useful tertiary β,γ‐disubstituted allylic amines, are formed in convincing yields and with excellent stereoselectivity. Particularly promising for future applications is the fact that even the industrial side product trimethylamine can be used as a substrate.
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Affiliation(s)
- Tobias Kaper
- Carl-von-Ossietzky-Universitat Oldenburg: Carl von Ossietzky Universitat Oldenburg, Institut für Chemie, GERMANY
| | - Dennis Geik
- Carl-von-Ossietzky-Universitat Oldenburg: Carl von Ossietzky Universitat Oldenburg, Institut für Chemie, GERMANY
| | - Felix Fornfeist
- Carl-von-Ossietzky-Universitat Oldenburg: Carl von Ossietzky Universitat Oldenburg, Institut für Chemie, GERMANY
| | - Marc Schmidtmann
- Carl-von-Ossietzky-Universitat Oldenburg: Carl von Ossietzky Universitat Oldenburg, Institut für Chemie, GERMANY
| | - Sven Doye
- Universitaet Oldenburg, Institut fuer Chemie, Carl-von-Ossietzky-Strasse 9-11, 26129, Oldenburg, GERMANY
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19
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Han B, Zhang J, Jiao H, Wu L. Zirconium-hydride-catalyzed site-selective hydroboration of amides for the synthesis of amines: Mechanism, scope, and application. CHINESE JOURNAL OF CATALYSIS 2021. [DOI: 10.1016/s1872-2067(21)63853-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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20
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Wood DP, Guan W, Lin S. Titanium and Cobalt Bimetallic Radical Redox Relay for the Isomerization of N-Bz Aziridines to Allylic Amides. SYNTHESIS-STUTTGART 2021; 53:4213-4220. [PMID: 34764520 PMCID: PMC8579959 DOI: 10.1055/s-0037-1610779] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
Herein a bimetallic radical redox-relay strategy is employed to generate alkyl radicals under mild conditions with titanium(III) catalysis and terminated via hydrogen atom transfer with cobalt(II) catalysis to enact base-free isomerizations of N-Bz aziridines to N-Bz allylic amides. This reaction provides an alternative strategy for the synthesis of allylic amides from alkenes via a three-step sequence to accomplish a formal transpositional allylic amination.
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Affiliation(s)
- Devin P Wood
- Department of Chemistry and Chemical Biology, Cornell University, Ithaca, New York 14853, USA
| | - Weiyang Guan
- Department of Chemistry and Chemical Biology, Cornell University, Ithaca, New York 14853, USA
| | - Song Lin
- Department of Chemistry and Chemical Biology, Cornell University, Ithaca, New York 14853, USA
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21
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Abstract
Allylic amines are versatile building blocks in organic synthesis and exist in bioactive compounds, but their synthesis via hydroaminoalkylation of alkynes with amines has been a formidable challenge. Here, we report a late transition metal Ni-catalyzed hydroaminoalkylation of alkynes with N-sulfonyl amines, providing a series of allylic amines in up to 94% yield. Double ligands of N-heterocyclic carbene (IPr) and tricyclohexylphosphine (PCy3) effectively promote the reaction.
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22
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Wang X, Cui P, Xia C, Wu L. Catalytic Boration of Alkyl Halides with Borane without Hydrodehalogenation Enabled by Titanium Catalyst. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202100569] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Affiliation(s)
- Xianjin Wang
- State Key Laboratory for Oxo Synthesis and Selective Oxidation Suzhou Research Institute of LICP Lanzhou Institute of Chemical Physics (LICP) Chinese Academy of Sciences Lanzhou 730000 P. R. China
- University of Chinese Academy of Sciences Beijing 100049 P. R. China
| | - Penglei Cui
- College of Science Hebei Agricultural University Baoding 071001 P. R. China
| | - Chungu Xia
- State Key Laboratory for Oxo Synthesis and Selective Oxidation Suzhou Research Institute of LICP Lanzhou Institute of Chemical Physics (LICP) Chinese Academy of Sciences Lanzhou 730000 P. R. China
| | - Lipeng Wu
- State Key Laboratory for Oxo Synthesis and Selective Oxidation Suzhou Research Institute of LICP Lanzhou Institute of Chemical Physics (LICP) Chinese Academy of Sciences Lanzhou 730000 P. R. China
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23
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Wang X, Cui P, Xia C, Wu L. Catalytic Boration of Alkyl Halides with Borane without Hydrodehalogenation Enabled by Titanium Catalyst. Angew Chem Int Ed Engl 2021; 60:12298-12303. [DOI: 10.1002/anie.202100569] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2021] [Indexed: 12/22/2022]
Affiliation(s)
- Xianjin Wang
- State Key Laboratory for Oxo Synthesis and Selective Oxidation Suzhou Research Institute of LICP Lanzhou Institute of Chemical Physics (LICP) Chinese Academy of Sciences Lanzhou 730000 P. R. China
- University of Chinese Academy of Sciences Beijing 100049 P. R. China
| | - Penglei Cui
- College of Science Hebei Agricultural University Baoding 071001 P. R. China
| | - Chungu Xia
- State Key Laboratory for Oxo Synthesis and Selective Oxidation Suzhou Research Institute of LICP Lanzhou Institute of Chemical Physics (LICP) Chinese Academy of Sciences Lanzhou 730000 P. R. China
| | - Lipeng Wu
- State Key Laboratory for Oxo Synthesis and Selective Oxidation Suzhou Research Institute of LICP Lanzhou Institute of Chemical Physics (LICP) Chinese Academy of Sciences Lanzhou 730000 P. R. China
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24
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Li L, Liu YC, Shi H. Nickel-Catalyzed Enantioselective α-Alkenylation of N-Sulfonyl Amines: Modular Access to Chiral α-Branched Amines. J Am Chem Soc 2021; 143:4154-4161. [PMID: 33691068 DOI: 10.1021/jacs.1c00622] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Chiral α-branched amines are common structural motifs in functional materials, pharmaceuticals, and chiral catalysts. Therefore, developing efficient methods for preparing compounds with these privileged scaffolds is an important endeavor in synthetic chemistry. Herein, we describe an atom-economical, modular method for a nickel-catalyzed enantioselective α-alkenylation of readily available linear N-sulfonyl amines with alkynes to afford a wide variety of allylic amines without the need for exogenous oxidants, reductants, or activating reagents. The method provides a platform for constructing chiral α-branched amines as well as derivatives such as α-amino amides and β-amino alcohols, which can be conveniently accessed from the newly introduced alkene. Given the generality, versatility, and high atom economy of this method, we anticipate that it will have broad synthetic utility.
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Affiliation(s)
- Lun Li
- Key Laboratory of Precise Synthesis of Functional Molecules of Zhejiang Province, School of Science, Westlake University, 18 Shilongshan Road, Hangzhou 310024, Zhejiang Province, China.,Institute of Natural Sciences, Westlake Institute for Advanced Study, 18 Shilongshan Road, Hangzhou 310024, Zhejiang Province, China
| | - Yu-Cheng Liu
- Key Laboratory of Precise Synthesis of Functional Molecules of Zhejiang Province, School of Science, Westlake University, 18 Shilongshan Road, Hangzhou 310024, Zhejiang Province, China
| | - Hang Shi
- Key Laboratory of Precise Synthesis of Functional Molecules of Zhejiang Province, School of Science, Westlake University, 18 Shilongshan Road, Hangzhou 310024, Zhejiang Province, China.,Institute of Natural Sciences, Westlake Institute for Advanced Study, 18 Shilongshan Road, Hangzhou 310024, Zhejiang Province, China
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25
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Koperniku A, Schafer LL. Zirconium Catalyzed Hydroaminoalkylation for the Synthesis of α‐Arylated Amines and N‐Heterocycles. Chemistry 2021; 27:6334-6339. [DOI: 10.1002/chem.202100014] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2021] [Indexed: 11/06/2022]
Affiliation(s)
- Ana Koperniku
- Faculty of Pharmaceutical Sciences The University of British Columbia 2405 Wesbrook Mall Vancouver BC V6T 1Z3 Canada
- Current address: Stanford University School of Medicine Medicine 269 Campus Drive, CCSR 3140 94305-5174 Palo Alto USA
| | - Laurel L. Schafer
- Department of Chemistry The University of British Columbia 2036 Main Mall Vancouver BC V6T 1Z1 Canada
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26
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Kaper T, Fischer M, Thye H, Geik D, Schmidtmann M, Beckhaus R, Doye S. Intermolecular Hydroaminoalkylation of Alkynes. Chemistry 2021; 27:6899-6903. [PMID: 33481309 PMCID: PMC8248392 DOI: 10.1002/chem.202100238] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2020] [Indexed: 11/24/2022]
Abstract
Intermolecular hydroaminoalkylation reactions of alkynes with secondary amines, which selectively give access to allylic amines with E configuration of the alkene unit, are achieved in the presence of titanium catalysts. Successful reactions of symmetrically substituted diaryl‐ and dialkylalkynes as well as a terminal alkyne take place with N‐benzylanilines, N‐alkylanilines, and N‐alkylbenzylamines.
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Affiliation(s)
- Tobias Kaper
- Institut für Chemie, Universität Oldenburg, Carl-von-Ossietzky-Strasse 9-11, 26129, Oldenburg, Germany
| | - Malte Fischer
- Leibniz-Institut für Katalyse e.V. (LIKAT), Albert-Einstein-Straße 29A, 18059, Rostock, Germany
| | - Hermann Thye
- Institut für Chemie, Universität Oldenburg, Carl-von-Ossietzky-Strasse 9-11, 26129, Oldenburg, Germany
| | - Dennis Geik
- Institut für Chemie, Universität Oldenburg, Carl-von-Ossietzky-Strasse 9-11, 26129, Oldenburg, Germany
| | - Marc Schmidtmann
- Institut für Chemie, Universität Oldenburg, Carl-von-Ossietzky-Strasse 9-11, 26129, Oldenburg, Germany
| | - Ruediger Beckhaus
- Institut für Chemie, Universität Oldenburg, Carl-von-Ossietzky-Strasse 9-11, 26129, Oldenburg, Germany
| | - Sven Doye
- Institut für Chemie, Universität Oldenburg, Carl-von-Ossietzky-Strasse 9-11, 26129, Oldenburg, Germany
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27
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Cui X, Huang W, Wu L. Zirconium-hydride-catalyzed transfer hydrogenation of quinolines and indoles with ammonia borane. Org Chem Front 2021. [DOI: 10.1039/d1qo00672j] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
Herein, by applying zirconium-hydride complex as the catalyst, the transfer hydrogenation of quinoline and indole derivatives with ammonia borane as a proton and hydride source is achieved.
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Affiliation(s)
- Xin Cui
- State Key Laboratory for Oxo Synthesis and Selective Oxidation, Suzhou Research Institute of LICP, Lanzhou Institute of Chemical Physics (LICP), Chinese Academy of Sciences, Lanzhou, 730000, P. R. China
| | - Wei Huang
- CAS Key Laboratory of Bio-based Materials, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao 266101, P. R. China
| | - Lipeng Wu
- State Key Laboratory for Oxo Synthesis and Selective Oxidation, Suzhou Research Institute of LICP, Lanzhou Institute of Chemical Physics (LICP), Chinese Academy of Sciences, Lanzhou, 730000, P. R. China
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