1
|
Wang Q, Yuan X, Sun H, Yang J, Yang X, Lin J, Jin Y. Iron(III)-Catalyzed Amine-Release Triple Condensation of Enaminones to C3-Alkenylated Dihydroquinolinones. J Org Chem 2024. [PMID: 38996186 DOI: 10.1021/acs.joc.4c00750] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/14/2024]
Abstract
C3-functionalized dihydroquinolinones represent a class of important biologically active compounds. Although methods for synthesizing C2/4-functionalized dihydroquinolinones have been extensively reported, research on the synthesis of C3-functionalized dihydroquinolinone is extremely rare. Herein, we report for the first time a method for C3-alkenylated dihydroquinolinones via iron(III)-catalyzed amine-release triple condensation of enaminones. These reactions exhibit broad substrate scope and offer operationally simple, low-cost catalyzed procedures in a single step. Subsequent intramolecular and intermolecular additions to the alkene moiety provide diverse C3-functionalized dihydroquinolinone derivatives.
Collapse
Affiliation(s)
- Qiaoqiao Wang
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education, Yunnan Key Laboratory of Research & Development for Natural Products, School of Pharmacy, Yunnan University, Kunming 650091, P. R. China
| | - Xu Yuan
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education, Yunnan Key Laboratory of Research & Development for Natural Products, School of Pharmacy, Yunnan University, Kunming 650091, P. R. China
| | - Haoyang Sun
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education, Yunnan Key Laboratory of Research & Development for Natural Products, School of Pharmacy, Yunnan University, Kunming 650091, P. R. China
| | - Jimei Yang
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education, Yunnan Key Laboratory of Research & Development for Natural Products, School of Pharmacy, Yunnan University, Kunming 650091, P. R. China
| | - Xingjiang Yang
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education, Yunnan Key Laboratory of Research & Development for Natural Products, School of Pharmacy, Yunnan University, Kunming 650091, P. R. China
| | - Jun Lin
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education, Yunnan Key Laboratory of Research & Development for Natural Products, School of Pharmacy, Yunnan University, Kunming 650091, P. R. China
| | - Yi Jin
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education, Yunnan Key Laboratory of Research & Development for Natural Products, School of Pharmacy, Yunnan University, Kunming 650091, P. R. China
| |
Collapse
|
2
|
Lei X, Wang Y, Ma S, Jiao P. Purple Light-Promoted Coupling of Bromopyridines with Grignard Reagents via SET. J Org Chem 2024; 89:7148-7155. [PMID: 38718346 DOI: 10.1021/acs.joc.4c00525] [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
Alkyl- and arylpyridines and 2,2'-bipyridines are conventionally prepared by Minisci reactions of pyridines and transition metal-catalyzed coupling reactions of halopyridines. Herein, purple light-promoted radical coupling reactions of 2- or 4-bromopyridines with Grignard reagents in Et2O or a mixture of Et2O and tetrahydrofuran in regular glassware without the need for a transition metal catalyst were disclosed for the first time. Methyl, primary and secondary alkyl, cycloalkyl, aryl, heteroaryl, pyridyl, and alkynyl Grignard reagents were compatible with the protocol. As a result, alkyl- and arylpyridines and 2,2'-bipyridines were easily prepared. Single electron transfer from the Grignard reagent to bromopyridine was stimulated by purple light. An electron extruded from the dimerization of the Grignard reagent worked as the catalyst. Light on/off experiments indicated that constant irradiation was required for product formation. Studies of radical clock substrates verified the involvement of a pyridyl radical from bromopyridine and the noninvolvement of an alkyl or aryl radical from the Grignard reagent. The available proof supports a photoinduced SRN mechanism for the new coupling reactions.
Collapse
Affiliation(s)
- Xingyu Lei
- College of Chemistry, Beijing Normal University, No. 19 Xinjiekouwai Street, Beijing 100875, China
| | - Yihan Wang
- College of Chemistry, Beijing Normal University, No. 19 Xinjiekouwai Street, Beijing 100875, China
| | - Shanshan Ma
- Institute of Rural Revitalization (Institute of Medicine and Health Care), Dezhou University, No. 566 West University Road, Dezhou 253023, China
| | - Peng Jiao
- College of Chemistry, Beijing Normal University, No. 19 Xinjiekouwai Street, Beijing 100875, China
| |
Collapse
|
3
|
Abonia R, Cabrera L, Arteaga D, Insuasty D, Quiroga J, Cuervo P, Insuasty H. Using Quinolin-4-Ones as Convenient Common Precursors for a Metal-Free Total Synthesis of Both Dubamine and Graveoline Alkaloids and Diverse Structural Analogues. Molecules 2024; 29:1959. [PMID: 38731450 PMCID: PMC11085558 DOI: 10.3390/molecules29091959] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2024] [Revised: 03/12/2024] [Accepted: 03/14/2024] [Indexed: 05/13/2024] Open
Abstract
The Rutaceae family is one of the most studied plant families due to the large number of alkaloids isolated from them with outstanding biological properties, among them the quinoline-based alkaloids Graveoline 1 and Dubamine 2. The most common methods for the synthesis of alkaloids 1 and 2 and their derivatives involves cycloaddition reactions or metal-catalyzed coupling processes but with some limitations in scope and functionalization of the quinoline moiety. As a continuation of our current studies on the synthesis and chemical transformation of 2-aminochalcones, we are reporting here an efficient metal-free approach for the total synthesis of alkaloids 1 and 2 along with their analogues with structural diversity, through a two-step sequence involving intramolecular cyclization, oxidation/aromatization, N-methylation and oxidative C-C bond processes, starting from dihydroquinolin-4-ones as common precursors for the construction of the structures of both classes of alkaloids.
Collapse
Affiliation(s)
- Rodrigo Abonia
- Research Group of Heterocyclic Compounds, Department of Chemistry, Universidad del Valle, Cali A.A. 25360, Colombia; (L.C.); (D.A.); (J.Q.); (P.C.)
| | - Lorena Cabrera
- Research Group of Heterocyclic Compounds, Department of Chemistry, Universidad del Valle, Cali A.A. 25360, Colombia; (L.C.); (D.A.); (J.Q.); (P.C.)
| | - Diana Arteaga
- Research Group of Heterocyclic Compounds, Department of Chemistry, Universidad del Valle, Cali A.A. 25360, Colombia; (L.C.); (D.A.); (J.Q.); (P.C.)
| | - Daniel Insuasty
- Research Group of Heterocyclic Compounds, Department of Chemistry, Universidad del Valle, Cali A.A. 25360, Colombia; (L.C.); (D.A.); (J.Q.); (P.C.)
- Grupo de Investigación en Química y Biología, Departamento de Química y Biología, Universidad del Norte, Barranquilla A.A. 081007, Colombia
| | - Jairo Quiroga
- Research Group of Heterocyclic Compounds, Department of Chemistry, Universidad del Valle, Cali A.A. 25360, Colombia; (L.C.); (D.A.); (J.Q.); (P.C.)
| | - Paola Cuervo
- Research Group of Heterocyclic Compounds, Department of Chemistry, Universidad del Valle, Cali A.A. 25360, Colombia; (L.C.); (D.A.); (J.Q.); (P.C.)
- Grupo de Estudios en Síntesis y Aplicaciones de Compuestos Heterocíclicos, Facultad de Ciencias, Departamento de Química, Universidad Nacional de Colombia, Bogotá A.A. 14490, Colombia
| | - Henry Insuasty
- Departamento de Química, Universidad de Nariño, Calle 18 No. 50-02 Torobajo, Pasto 520001, Colombia;
| |
Collapse
|
4
|
Wang H, Greaney MF. Regiodivergent Arylation of Pyridines via Zincke Intermediates. Angew Chem Int Ed Engl 2024; 63:e202315418. [PMID: 37985419 DOI: 10.1002/anie.202315418] [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: 10/13/2023] [Revised: 11/16/2023] [Accepted: 11/20/2023] [Indexed: 11/22/2023]
Abstract
An arylation protocol for pyridines is described, via the ring-opened Zincke intermediate. Treatment of pyridines with triflic anhydride and a secondary amine produces an azahexatriene species, which undergoes regioselective Pd-catalyzed arylation at the putative C4 position. Recyclization then provides the pyridine products. Alternatively, metal-free arylation with a diaryliodonium salt is selective for the pyridine meta-position, affording a regiodivergent approach to pyridine biaryls from a common intermediate.
Collapse
Affiliation(s)
- Haiwen Wang
- School of Chemistry, The University of Manchester, Oxford Road, Manchester, M13 9PL, UK
| | - Michael F Greaney
- School of Chemistry, The University of Manchester, Oxford Road, Manchester, M13 9PL, UK
| |
Collapse
|
5
|
O’Reilly RJ, Karton A. A Systematic Exploration of B-F Bond Dissociation Enthalpies of Fluoroborane-Type Molecules at the CCSD(T)/CBS Level. Molecules 2023; 28:5707. [PMID: 37570677 PMCID: PMC10420309 DOI: 10.3390/molecules28155707] [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: 06/27/2023] [Revised: 07/19/2023] [Accepted: 07/26/2023] [Indexed: 08/13/2023] Open
Abstract
Fluoroborane-type molecules (R1R2B-F) are of interest in synthetic chemistry, but to date, apart from a handful of small species (such as H2BF, HBF2, and BF3), little is known concerning the effect of substituents in governing the strength of the B-F bonds of such species toward homolytic dissociation in the gas phase. In this study, we have calculated the bond dissociation enthalpies (BDEs) of thirty unique B-F bonds at the CCSD(T)/CBS level using the high-level W1w thermochemical protocol. The B-F bonds in all species considered are very strong, ranging from 545.9 kJ mol-1 in (H2B)2B-F to 729.2 kJ mol-1 HBF2. Nevertheless, these BDEs still vary over a wide range of 183.3 kJ mol-1. The structural properties that affect the BDEs are examined in detail, and the homolytic BDEs are rationalized based on molecule stabilization enthalpies and radical stabilization enthalpies. Since polar B-F bonds may represent a challenging test case for density functional theory (DFT) methods, we proceed to examine the performance of a wide range of DFT methods across the rungs of Jacob's Ladder for their ability to compute B-F BDEs. We find that only a handful of DFT methods can reproduce the CCSD(T)/CBS BDEs with mean absolute deviations (MADs) below the threshold of chemical accuracy (i.e., with average deviations below 4.2 kJ mol-1). The only functionals capable of achieving this feat were (MADs given in parentheses): ωB97M-V (4.0), BMK (3.5), DSD-BLYP (3.8), and DSD-PBEB95 (1.8 kJ mol-1).
Collapse
Affiliation(s)
- Robert J. O’Reilly
- School of Science and Technology, University of New England, Armidale, NSW 2351, Australia
| | - Amir Karton
- School of Science and Technology, University of New England, Armidale, NSW 2351, Australia
| |
Collapse
|
6
|
Zhou C, Liu Y, Luo Q, Zhang Y, Zhou J, Zhang H, Liu J. Microwave-accelerated cross-dehydrogenative-coupling (CDC) of N-(quinolin-8-yl)amides with acetone/acetonitrile under metal-free conditions. RSC Adv 2023; 13:21231-21235. [PMID: 37456538 PMCID: PMC10340454 DOI: 10.1039/d3ra03651k] [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: 05/31/2023] [Accepted: 07/07/2023] [Indexed: 07/18/2023] Open
Abstract
A highly selective remote C(sp3)-H acetonation of N-(quinolin-8-yl)amide scaffolds at the C5-position under microwave irradiation has been developed. In the absence of a transition-metal-catalyst, benzoyl peroxide (BPO)-promoted cross-dehydrogenation coupling (CDC) of N-(quinolin-8-yl)amides with acetone/acetonitrile occurred smoothly to generate the corresponding 5-acetonated/acetonitriled N-(quinolin-8-yl)amides in good yields. The transformation is operationally simple, rapid, easily scaled-up to the gram scale, and shows a broad substrate scope.
Collapse
Affiliation(s)
- Chao Zhou
- Key Laboratory of Green and Precise Synthetic Chemistry, Ministry of Education, Huaibei Normal University Huaibei Anhui 235000 P. R. China
| | - Yunwei Liu
- Key Laboratory of Green and Precise Synthetic Chemistry, Ministry of Education, Huaibei Normal University Huaibei Anhui 235000 P. R. China
| | - Qi Luo
- Key Laboratory of Green and Precise Synthetic Chemistry, Ministry of Education, Huaibei Normal University Huaibei Anhui 235000 P. R. China
| | - Yicheng Zhang
- Key Laboratory of Green and Precise Synthetic Chemistry, Ministry of Education, Huaibei Normal University Huaibei Anhui 235000 P. R. China
| | - Jingwen Zhou
- Key Laboratory of Green and Precise Synthetic Chemistry, Ministry of Education, Huaibei Normal University Huaibei Anhui 235000 P. R. China
| | - Haoyu Zhang
- Key Laboratory of Green and Precise Synthetic Chemistry, Ministry of Education, Huaibei Normal University Huaibei Anhui 235000 P. R. China
| | - Jie Liu
- Key Laboratory of Green and Precise Synthetic Chemistry, Ministry of Education, Huaibei Normal University Huaibei Anhui 235000 P. R. China
| |
Collapse
|
7
|
Cao H, Bhattacharya D, Cheng Q, Studer A. C-H Functionalization of Pyridines via Oxazino Pyridine Intermediates: Switching to para-Selectivity under Acidic Conditions. J Am Chem Soc 2023. [PMID: 37428649 DOI: 10.1021/jacs.3c05242] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/12/2023]
Abstract
para-Selective C-H functionalization of pyridines holds a significant value but remains underdeveloped. Site-switchable C-H functionalization of pyridines under easily tunable conditions expedites drug development. We recently reported a redox-neutral dearomatization-rearomatization strategy for meta-C-H functionalization of pyridines via oxazino pyridine intermediates. Here, we demonstrate that these oxazino pyridine intermediates undergo highly para-selective functionalization simply by switching to acidic conditions. A broad scope of para-alkylated and arylated pyridines is prepared through radical as well as ionic pathways. These mild and catalyst-free methods are applied to the late-stage para-functionalization of drugs using pyridines as the limiting reagents. Consecutive meta,para-difunctionalization of pyridines is also achieved with complete regiocontrol relying on the pH-dependent reactivity of oxazino pyridines.
Collapse
Affiliation(s)
- Hui Cao
- Organisch-Chemisches Institut, Westfälische Wilhelms-Universität, 48149 Münster, Germany
| | - Debkanta Bhattacharya
- Organisch-Chemisches Institut, Westfälische Wilhelms-Universität, 48149 Münster, Germany
| | - Qiang Cheng
- Organisch-Chemisches Institut, Westfälische Wilhelms-Universität, 48149 Münster, Germany
| | - Armido Studer
- Organisch-Chemisches Institut, Westfälische Wilhelms-Universität, 48149 Münster, Germany
| |
Collapse
|
8
|
Quint V, Van Nguyen TH, Mathieu G, Chelli S, Breugst M, Lohier JF, Gaumont AC, Lakhdar S. Transition Metal-Free Regioselective Phosphonation of Pyridines: Scope and Mechanism. ACS ORGANIC & INORGANIC AU 2023; 3:151-157. [PMID: 37303502 PMCID: PMC10251503 DOI: 10.1021/acsorginorgau.2c00055] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/14/2022] [Revised: 01/14/2023] [Accepted: 01/17/2023] [Indexed: 06/13/2023]
Abstract
Regioselective phosphonation of pyridines is an interesting transformation in synthesis and medicinal chemistry. We report herein a metal-free approach enabling access to various 4-phosphonated pyridines. The method consists of simply activating the pyridine ring with a Lewis acid (BF3·OEt2) to facilitate the nucleophilic addition of a phosphine oxide anion. The formed sigma complex is subsequently oxidized with an organic oxidant (chloranil) to yield the desired adducts in good to excellent yields. We furthermore showed that access to C2-phosphoinated pyridines can be achieved in certain cases with strong Lewis basic phosphorus nucleophiles or with strong Lewis acidic pyridines. Both experimental and computational mechanistic investigations were undertaken and allowed us to understand the factors controlling the reactivity and selectivity of this reaction.
Collapse
Affiliation(s)
- Valentin Quint
- Normandie
University, LCMT, ENSICAEN, UNICAEN, CNRS, 6, Boulevard Maréchal
Juin, Caen 14000-France
| | - Thi Hong Van Nguyen
- CNRS,
Université Paul Sabatier, Laboratoire Hétérochimie
Fondamentale et Appliquée (LHFA, UMR5069), 118 Route de Narbonne, 31062 Cedex 09 Toulouse, France
| | - Gary Mathieu
- Normandie
University, LCMT, ENSICAEN, UNICAEN, CNRS, 6, Boulevard Maréchal
Juin, Caen 14000-France
| | - Saloua Chelli
- CNRS,
Université Paul Sabatier, Laboratoire Hétérochimie
Fondamentale et Appliquée (LHFA, UMR5069), 118 Route de Narbonne, 31062 Cedex 09 Toulouse, France
| | - Martin Breugst
- Institut
für Chemie, Technische Universität
Chemnitz, 09111 Chemnitz, Germany
| | - Jean-François Lohier
- Normandie
University, LCMT, ENSICAEN, UNICAEN, CNRS, 6, Boulevard Maréchal
Juin, Caen 14000-France
| | - Annie-Claude Gaumont
- Normandie
University, LCMT, ENSICAEN, UNICAEN, CNRS, 6, Boulevard Maréchal
Juin, Caen 14000-France
| | - Sami Lakhdar
- CNRS,
Université Paul Sabatier, Laboratoire Hétérochimie
Fondamentale et Appliquée (LHFA, UMR5069), 118 Route de Narbonne, 31062 Cedex 09 Toulouse, France
| |
Collapse
|
9
|
Hasyeoui M, Lassagne F, Erb W, Nael M, Elokely KM, Chaikuad A, Knapp S, Jorda A, Vallés SL, Quissac E, Verreault M, Robert T, Bach S, Samarat A, Mongin F. Oxazolo[5,4-f]quinoxaline-type selective inhibitors of glycogen synthase kinase-3α (GSK-3α): Development and impact on temozolomide treatment of glioblastoma cells. Bioorg Chem 2023; 134:106456. [PMID: 36913879 DOI: 10.1016/j.bioorg.2023.106456] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2022] [Revised: 02/28/2023] [Accepted: 03/01/2023] [Indexed: 03/07/2023]
Abstract
The 2-(3-pyridyl)oxazolo[5,4-f]quinoxalines CD-07 and FL-291 are ATP-competitive GSK-3 kinase inhibitors. Here, we investigated the impact of FL-291 on neuroblastoma cell viability and showed that treatment at 10 μM (i.e. ∼500 times the IC50 against the GSK-3 isoforms) has no significant effect on the viability of NSC-34 motoneuron-like cells. A study performed on primary neurons (non-cancer cells) led to similar results. The structures co-crystallized with GSK-3β revealed similar binding modes for FL-291 and CD-07, with their hinge-oriented planar tricyclic system. Both GSK isoforms show the same orientations for the amino acids at the binding pocket except for Phe130 (α) and Phe67 (β), leading to a larger pocket on the opposite side of the hinge region for the α isoform. Calculations of the thermodynamic properties of the binding pockets highlighted the required features of potential ligands; these should have a hydrophobic core (which could be larger in the case of GSK-3β) surrounded by polar areas (a little more polar in the case of GSK-3α). A library of 27 analogs of FL-291 and CD-07 was thus designed and synthesized by taking advantage of this hypothesis. While the introduction of substituents at different positions of the pyridine ring, the replacement of the pyridine by other heterocyclic moieties, or the replacement of the quinoxaline ring by a quinoline moiety did not lead to any improvement, the replacement of the N-(thio)morpholino of FL-291/CD-07 by a slightly more polar N-thiazolidino led to a significant result. Indeed, the new inhibitor MH-124 showed clear selectivity for the α isoform, with IC50 values of 17 nM and 239 nM on GSK-3α and GSK-3β, respectively. Finally, the efficacy of MH-124 was evaluated on two glioblastoma cell lines. Although MH-124 alone did not have a significant impact on cell survival, its addition to temozolomide (TMZ) significantly reduced the TMZ IC50 values on the cells tested. The use of the Bliss model allowed a synergy to be evidenced at certain concentrations.
Collapse
Affiliation(s)
- Mohamed Hasyeoui
- Univ Rennes, CNRS, ISCR (Institut des Sciences Chimiques de Rennes) - UMR 6226, F-35000 Rennes, France; University of Carthage, Faculty of Sciences of Bizerte, LR18ES11, Laboratory of Hetero-Organic Compounds and Nanostructured Materials, 7021 Bizerte, Tunisia
| | - Frédéric Lassagne
- Univ Rennes, CNRS, ISCR (Institut des Sciences Chimiques de Rennes) - UMR 6226, F-35000 Rennes, France.
| | - William Erb
- Univ Rennes, CNRS, ISCR (Institut des Sciences Chimiques de Rennes) - UMR 6226, F-35000 Rennes, France
| | - Manal Nael
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Tanta University, Tanta 31527, Egypt; Institute for Computational Molecular Science, and Department of Chemistry, Temple University, Philadelphia, PA 19122, USA
| | - Khaled M Elokely
- Institute for Computational Molecular Science, and Department of Chemistry, Temple University, Philadelphia, PA 19122, USA
| | - Apirat Chaikuad
- Institut für Pharmazeutische Chemie, Goethe-Universität Frankfurt, Max-von-Laue-Str. 9, 60438 Frankfurt am Main, Germany; Structural Genomics Consortium, Goethe-Universität Frankfurt, Buchmann Institute for Molecular Life Sciences, Max-von-Laue-Str. 15, 60438 Frankfurt am Main, Germany
| | - Stefan Knapp
- Institut für Pharmazeutische Chemie, Goethe-Universität Frankfurt, Max-von-Laue-Str. 9, 60438 Frankfurt am Main, Germany; Structural Genomics Consortium, Goethe-Universität Frankfurt, Buchmann Institute for Molecular Life Sciences, Max-von-Laue-Str. 15, 60438 Frankfurt am Main, Germany
| | - Adrian Jorda
- Department of Physiology, School of Medicine, University of Valencia, Blasco Ibañez 15, 46010 Valencia, Spain
| | - Soraya L Vallés
- Department of Physiology, School of Medicine, University of Valencia, Blasco Ibañez 15, 46010 Valencia, Spain
| | - Emie Quissac
- Sorbonne Université, Institut du Cerveau - Paris Brain Institute - ICM, Inserm, CNRS, APHP, Hôpital de la Pitié Salpêtrière, Paris, France
| | - Maïté Verreault
- Sorbonne Université, Institut du Cerveau - Paris Brain Institute - ICM, Inserm, CNRS, APHP, Hôpital de la Pitié Salpêtrière, Paris, France
| | - Thomas Robert
- Sorbonne Université, CNRS, UMR8227, Integrative Biology of Marine Models Laboratory (LBI2M), Station Biologique de Roscoff, 29680 Roscoff, France; Sorbonne Université, CNRS, FR2424, Plateforme de criblage KISSf (Kinase Inhibitor Specialized Screening facility), Station Biologique de Roscoff, 29680 Roscoff, France
| | - Stéphane Bach
- Sorbonne Université, CNRS, UMR8227, Integrative Biology of Marine Models Laboratory (LBI2M), Station Biologique de Roscoff, 29680 Roscoff, France; Sorbonne Université, CNRS, FR2424, Plateforme de criblage KISSf (Kinase Inhibitor Specialized Screening facility), Station Biologique de Roscoff, 29680 Roscoff, France; Centre of Excellence for Pharmaceutical Sciences, North-West University, Private Bag X6001, Potchefstroom 2520, South Africa
| | - Ali Samarat
- University of Carthage, Faculty of Sciences of Bizerte, LR18ES11, Laboratory of Hetero-Organic Compounds and Nanostructured Materials, 7021 Bizerte, Tunisia
| | - Florence Mongin
- Univ Rennes, CNRS, ISCR (Institut des Sciences Chimiques de Rennes) - UMR 6226, F-35000 Rennes, France.
| |
Collapse
|
10
|
Inoue K, Hirano K, Fujioka S, Uchiyama M, Mori A, Okano K. Lithium Aryltrifluoroborate as a Catalyst for Halogen Transfer. ACS Catal 2023. [DOI: 10.1021/acscatal.2c06082] [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)
- Kengo Inoue
- Department of Chemical Science and Engineering, Kobe University, Kobe, Hyo̅go 657-8501, Japan
| | - Keiichi Hirano
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, Tokyo, Tokyo 113-0033, Japan
| | - Shota Fujioka
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, Tokyo, Tokyo 113-0033, Japan
| | - Masanobu Uchiyama
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, Tokyo, Tokyo 113-0033, Japan
- Research Initiative for Supra-Materials (RISM), Shinshu University, Nagano, Nagano 386-8567, Japan
| | - Atsunori Mori
- Department of Chemical Science and Engineering, Kobe University, Kobe, Hyo̅go 657-8501, Japan
- Research Center for Membrane and Film Technology, Kobe University, Kobe, Hyo̅go 657-8501, Japan
| | - Kentaro Okano
- Department of Chemical Science and Engineering, Kobe University, Kobe, Hyo̅go 657-8501, Japan
| |
Collapse
|
11
|
Dearomative triple elementalization of quinolines driven by visible light. Nat Commun 2023; 14:652. [PMID: 36746969 PMCID: PMC9902486 DOI: 10.1038/s41467-023-36161-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2022] [Accepted: 01/19/2023] [Indexed: 02/08/2023] Open
Abstract
Organoboron and organosilicon compounds are used not only as synthetic building blocks but also as functional materials and pharmaceuticals, and compounds with multiple boryl and silyl groups are beginning to be used for these purposes. Especially in drug discovery, methodology providing easy stereoselective access to aliphatic nitrogen heterocycles bearing multiple boryl or silyl groups from readily available aromatic nitrogen heterocycles would be attractive. However, such transformations remain challenging, and available reactions have been mostly limited to dearomative hydroboration or hydrosilylation reactions. Here, we report the dearomative triple elementalization (carbo-sila-boration) of quinolines via the addition of organolithium followed by photo-boosted silaboration, affording the desired products with complete chemo-, regio-, and stereoselectivity. The reaction proceeds via the formation of silyl radicals instead of silyl anions. We also present preliminary studies to illustrate the potential of silaboration products as synthetic platforms.
Collapse
|
12
|
Zhang M, Zhou Q, Luo H, Tang ZL, Xu X, Wang XC. C3-Cyanation of Pyridines: Constraints on Electrophiles and Determinants of Regioselectivity. Angew Chem Int Ed Engl 2023; 62:e202216894. [PMID: 36517651 DOI: 10.1002/anie.202216894] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2022] [Revised: 12/14/2022] [Accepted: 12/14/2022] [Indexed: 12/23/2022]
Abstract
Methods for C-H cyanation of pyridines are rare. Here, we report a method for C3-selective cyanation of pyridines by a tandem process with the reaction of an in situ generated dihydropyridine with a cyano electrophile as the key step. The method is suitable for late-stage functionalization of pyridine drugs. The low reduction potential of the electrophile and effective transfer of the nitrile group were found to be essential for the success of this method. We studied the reaction mechanism in detail by means of control experiments and theoretical calculations and found that a combination of electronic and steric factors determined the regioselectivity of reactions involving C2-substituted pyridines.
Collapse
Affiliation(s)
- Ming Zhang
- State Key Laboratory and Institute of Elemento-Organic Chemistry, Haihe Laboratory of Sustainable Chemical Transformations, Frontiers Science Center for New Organic Matter, College of Chemistry, Nankai University, 94 Weijin Road, Tianjin, 300071, China
| | - Qingyang Zhou
- Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education), College of Chemistry, Nankai University, 94 Weijin Road, Tianjin, 300071, China
| | - Heng Luo
- State Key Laboratory and Institute of Elemento-Organic Chemistry, Haihe Laboratory of Sustainable Chemical Transformations, Frontiers Science Center for New Organic Matter, College of Chemistry, Nankai University, 94 Weijin Road, Tianjin, 300071, China
| | - Zi-Lu Tang
- State Key Laboratory and Institute of Elemento-Organic Chemistry, Haihe Laboratory of Sustainable Chemical Transformations, Frontiers Science Center for New Organic Matter, College of Chemistry, Nankai University, 94 Weijin Road, Tianjin, 300071, China
| | - Xiufang Xu
- Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education), College of Chemistry, Nankai University, 94 Weijin Road, Tianjin, 300071, China
| | - Xiao-Chen Wang
- State Key Laboratory and Institute of Elemento-Organic Chemistry, Haihe Laboratory of Sustainable Chemical Transformations, Frontiers Science Center for New Organic Matter, College of Chemistry, Nankai University, 94 Weijin Road, Tianjin, 300071, China
| |
Collapse
|
13
|
Xue J, Luo Z, Huang J, Deng Y, Dong S, Liu S. Enantioselective Construction of C3-Multifunctionalization α-Hydroxy-β-amino Pyridines via α-Pyridyl Diazoacetate, Water, and Imines for Drug Hunting. Org Lett 2022; 24:9502-9507. [PMID: 36537781 DOI: 10.1021/acs.orglett.2c03987] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
An asymmetric catalytic approach for the construction of C3-multifunctionalization α-hydroxy-β-amino pyridines has been reported. The products can be accessed by the modulation of two chiral catalysts independently in high yield and with good enantioselectivity. The method features mild reaction conditions and an excellent functional group tolerance. Biological activity analysis shows that the resulting products have a selective antiosteosarcoma activity on 143B cells.
Collapse
Affiliation(s)
- Jian Xue
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development, East China Normal University, Shanghai 200062, China
| | - Zhengli Luo
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development, East China Normal University, Shanghai 200062, China
| | - Jisheng Huang
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development, East China Normal University, Shanghai 200062, China
| | - Yaqi Deng
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development, East China Normal University, Shanghai 200062, China
| | - Suzhen Dong
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development, East China Normal University, Shanghai 200062, China
| | - Shunying Liu
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development, East China Normal University, Shanghai 200062, China
| |
Collapse
|
14
|
Nad P, Behera AK, Sen A, Mukherjee A. Catalytic and Mechanistic Approach to the Metal-Free N-Alkylation of 2-Aminopyridines with Diketones. J Org Chem 2022; 87:15403-15414. [PMID: 36350139 DOI: 10.1021/acs.joc.2c01957] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
N-alkylation of amines is an important catalytic reaction in synthetic chemistry. Herein, we report a simple strategy for the N-alkylation of 2-aminopyridines with 1,2-diketones using BF3·OEt2 as a catalyst. The reaction proceeds under aerobic conditions, leading to the formation of a diverse range of substituted secondary amines in good to excellent yields. A close inspection of the mechanistic pathway using various spectroscopic techniques and the computational study revealed that the reaction proceeds through the formation of an iminium-keto intermediate with the liberation of CO2.
Collapse
Affiliation(s)
- Pinaki Nad
- Department of Chemistry, Indian Institute of Technology Bhilai, GEC Campus, Sejbahar, Raipur 492015, Chhattisgarh, India
| | - Anil Kumar Behera
- Department of Chemistry (CMDD Lab), GITAM School of Science, GITAM (Deemed to be University), Gandhi Nagar, Rushikonda, Visakhapatnam 530045, Andhra Pradesh, India
| | - Anik Sen
- Department of Chemistry (CMDD Lab), GITAM School of Science, GITAM (Deemed to be University), Gandhi Nagar, Rushikonda, Visakhapatnam 530045, Andhra Pradesh, India
| | - Arup Mukherjee
- Department of Chemistry, Indian Institute of Technology Bhilai, GEC Campus, Sejbahar, Raipur 492015, Chhattisgarh, India
| |
Collapse
|
15
|
Muta R, Torigoe T, Kuninobu Y. 3-Position-Selective C–H Trifluoromethylation of Pyridine Rings Based on Nucleophilic Activation. Org Lett 2022; 24:8218-8222. [DOI: 10.1021/acs.orglett.2c03327] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Affiliation(s)
- Ryuhei Muta
- Department of Molecular and Material Sciences, Interdisciplinary Graduate School of Engineering Sciences, Kyushu University, 6-1 Kasugakoen, Kasuga-shi, Fukuoka 816-8580, Japan
| | - Takeru Torigoe
- Institute for Materials Chemistry and Engineering, Kyushu University, 6-1 Kasugakoen, Kasuga-shi, Fukuoka 816-8580, Japan
- Department of Interdisciplinary Engineering Sciences, Interdisciplinary Graduate School of Engineering Sciences, Kyushu University, 6-1 Kasugakoen, Kasuga-shi, Fukuoka 816-8580, Japan
| | - Yoichiro Kuninobu
- Institute for Materials Chemistry and Engineering, Kyushu University, 6-1 Kasugakoen, Kasuga-shi, Fukuoka 816-8580, Japan
- Department of Interdisciplinary Engineering Sciences, Interdisciplinary Graduate School of Engineering Sciences, Kyushu University, 6-1 Kasugakoen, Kasuga-shi, Fukuoka 816-8580, Japan
| |
Collapse
|
16
|
Fan Z, Chen X, Tanaka K, Park HS, Lam NYS, Wong JJ, Houk KN, Yu JQ. Molecular editing of aza-arene C-H bonds by distance, geometry and chirality. Nature 2022; 610:87-93. [PMID: 35944562 PMCID: PMC10292866 DOI: 10.1038/s41586-022-05175-1] [Citation(s) in RCA: 22] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2021] [Accepted: 08/02/2022] [Indexed: 11/09/2022]
Abstract
Direct molecular editing of heteroarene carbon-hydrogen (C-H) bonds through consecutive selective C-H functionalization has the potential to grant rapid access into diverse chemical spaces, which is a valuable but often challenging venture to achieve in medicinal chemistry1. In contrast to electronically biased heterocyclic C-H bonds2-9, remote benzocyclic C-H bonds on bicyclic aza-arenes are especially difficult to differentiate because of the lack of intrinsic steric/electronic biases10-12. Here we report two conceptually distinct directing templates that enable the modular differentiation and functionalization of adjacent remote (C6 versus C7) and positionally similar (C3 versus C7) positions on bicyclic aza-arenes through careful modulation of distance, geometry and previously unconsidered chirality in template design. This strategy enables direct C-H olefination, alkynylation and allylation at adjacent C6 and C7 positions of quinolines in the presence of a competing C3 position that is spatially similar to C7. Notably, such site-selective, iterative and late-stage C-H editing of quinoline-containing pharmacophores can be performed in a modular fashion in different orders to suit bespoke synthetic applications. This Article, in combination with previously reported complementary methods, now fully establishes a unified late-stage 'molecular editing' strategy to directly modify bicyclic aza-arenes at any given site in different orders.
Collapse
Affiliation(s)
- Zhoulong Fan
- Department of Chemistry, The Scripps Research Institute, La Jolla, CA, USA
| | - Xiangyang Chen
- Department of Chemistry and Biochemistry, University of California, Los Angeles, CA, USA
| | - Keita Tanaka
- Department of Chemistry, The Scripps Research Institute, La Jolla, CA, USA
| | - Han Seul Park
- Department of Chemistry, The Scripps Research Institute, La Jolla, CA, USA
| | - Nelson Y S Lam
- Department of Chemistry, The Scripps Research Institute, La Jolla, CA, USA
| | - Jonathan J Wong
- Department of Chemistry and Biochemistry, University of California, Los Angeles, CA, USA
| | - K N Houk
- Department of Chemistry and Biochemistry, University of California, Los Angeles, CA, USA.
| | - Jin-Quan Yu
- Department of Chemistry, The Scripps Research Institute, La Jolla, CA, USA.
| |
Collapse
|
17
|
Antoniak D, Pałuba B, Basak T, Błaziak K, Barbasiewicz M. Alkylation of Nitroarenes via Vicarious Nucleophilic Substitution – Experimental and DFT Mechanistic Studies. Chemistry 2022; 28:e202201153. [DOI: 10.1002/chem.202201153] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2022] [Indexed: 11/11/2022]
Affiliation(s)
- Damian Antoniak
- Faculty of Chemistry University of Warsaw Pasteura 1 02-093 Warsaw Poland
| | - Bartosz Pałuba
- Faculty of Chemistry University of Warsaw Pasteura 1 02-093 Warsaw Poland
| | - Tymoteusz Basak
- Faculty of Chemistry University of Warsaw Pasteura 1 02-093 Warsaw Poland
| | - Kacper Błaziak
- Faculty of Chemistry University of Warsaw Pasteura 1 02-093 Warsaw Poland
| | | |
Collapse
|
18
|
Zhou XY, Zhang M, Liu Z, He JH, Wang XC. C3-Selective Trifluoromethylthiolation and Difluoromethylthiolation of Pyridines and Pyridine Drugs via Dihydropyridine Intermediates. J Am Chem Soc 2022; 144:14463-14470. [PMID: 35913823 DOI: 10.1021/jacs.2c06776] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Herein, we report a method for unprecedented C3-selective C-H tri- and difluoromethylthiolation of pyridines. The method relies on borane-catalyzed pyridine hydroboration for generation of nucleophilic dihydropyridines; these intermediates react with trifluoromethylthio and difluoromethylthio electrophiles to form functionalized dihydropyridines, which then undergo oxidative aromatization. The method can be used for late-stage functionalization of pyridine drugs for the generation of new drug candidates.
Collapse
Affiliation(s)
- Xin-Yue Zhou
- State Key Laboratory and Institute of Elemento-Organic Chemistry, Haihe Laboratory of Sustainable Chemical Transformations, Frontiers Science Center for New Organic Matter, College of Chemistry, Nankai University, Tianjin 300071, China
| | - Ming Zhang
- State Key Laboratory and Institute of Elemento-Organic Chemistry, Haihe Laboratory of Sustainable Chemical Transformations, Frontiers Science Center for New Organic Matter, College of Chemistry, Nankai University, Tianjin 300071, China
| | - Zhong Liu
- State Key Laboratory and Institute of Elemento-Organic Chemistry, Haihe Laboratory of Sustainable Chemical Transformations, Frontiers Science Center for New Organic Matter, College of Chemistry, Nankai University, Tianjin 300071, China
| | - Jia-Hao He
- State Key Laboratory and Institute of Elemento-Organic Chemistry, Haihe Laboratory of Sustainable Chemical Transformations, Frontiers Science Center for New Organic Matter, College of Chemistry, Nankai University, Tianjin 300071, China
| | - Xiao-Chen Wang
- State Key Laboratory and Institute of Elemento-Organic Chemistry, Haihe Laboratory of Sustainable Chemical Transformations, Frontiers Science Center for New Organic Matter, College of Chemistry, Nankai University, Tianjin 300071, China
| |
Collapse
|
19
|
Wang D, Xu L, Zheng S, Yang X. Transition‐Metal‐Free Regioselective Direct C2, C4 Difunctionalization and C2, C4, C6 Trifunctionalization of Pyridines. Adv Synth Catal 2022. [DOI: 10.1002/adsc.202200261] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
| | | | - Shixin Zheng
- Tianjin University of Science and Technology CHINA
| | | |
Collapse
|
20
|
Song LY, Chen MK, Wang J, Li JH. A straightforward coupling of 4-sulfonylpyridines with Grignard reagents. JOURNAL OF CHEMICAL RESEARCH 2022. [DOI: 10.1177/17475198221103502] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
A straightforward synthesis of alkyl-sulfonylpyridines and aryl-sulfonylpyridines is developed by coupling of sulfonylpyridines with the Grignard reagents. The protocol proceeds through a catalyst- and oxidant-free coupling of sulfonylpyridines as substrates via a Chichibabin-type reaction mechanism.
Collapse
Affiliation(s)
- Liu-Yi Song
- College of Pharmaceutical Sciences, Zhejiang University of Technology, Deqing, P.R. China
| | - Meng-Ke Chen
- College of Pharmaceutical Sciences, Zhejiang University of Technology, Deqing, P.R. China
| | - Jian Wang
- School of Pharmacy, Hangzhou Medical College, Hangzhou, P.R. China
| | - Jing-Hua Li
- College of Pharmaceutical Sciences, Zhejiang University of Technology, Deqing, P.R. China
| |
Collapse
|
21
|
Kumar Rout S, Kastrati A, Jangra H, Schwärzer K, Sunagatullina AS, Garny M, Lima F, Brocklehurst CE, Karaghiosoff K, Zipse H, Knochel P. Reliable Functionalization of 5,6‐Fused Bicyclic N‐Heterocycles Pyrazolopyrimidines and Imidazopyridazines via Zinc and Magnesium Organometallics. Chemistry 2022; 28:e202200733. [PMID: 35384103 PMCID: PMC9321601 DOI: 10.1002/chem.202200733] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2022] [Indexed: 12/20/2022]
Abstract
DFT‐calculations allow prediction of the reactivity of uncommon N‐heterocyclic scaffolds of pyrazolo[1,5‐a]pyrimidines and imidazo[1,2‐b]pyridazines and considerably facilitate their functionalization. The derivatization of these N‐heterocycles was realized using Grignard reagents for nucleophilic additions to 5‐chloropyrazolo[1,5‐a]pyrimidines and TMP2Zn ⋅ 2 MgCl2
⋅ 2 LiCl allowed regioselective zincations. In the case of 6‐chloroimidazo[1,2‐b]pyridazine, bases such as TMP2Zn ⋅ MgCl2
⋅ 2 LiCl, in the presence or absence of BF3
⋅ OEt2, led to regioselective metalations at positions 3 or 8. Subsequent functionalizations were achieved with TMPMgCl ⋅ LiCl, producing various polysubstituted derivatives (up to penta‐substitution). X‐ray analysis confirmed the regioselectivity for key functional heterocycles.
Collapse
Affiliation(s)
- Saroj Kumar Rout
- Department Chemie Ludwig-Maximilians-Universität München Butenandtstrasse 5–13, Haus F 81377 München Germany
| | - Agonist Kastrati
- Department Chemie Ludwig-Maximilians-Universität München Butenandtstrasse 5–13, Haus F 81377 München Germany
| | - Harish Jangra
- Department Chemie Ludwig-Maximilians-Universität München Butenandtstrasse 5–13, Haus F 81377 München Germany
| | - Kuno Schwärzer
- Department Chemie Ludwig-Maximilians-Universität München Butenandtstrasse 5–13, Haus F 81377 München Germany
| | - Alisa S. Sunagatullina
- Department Chemie Ludwig-Maximilians-Universität München Butenandtstrasse 5–13, Haus F 81377 München Germany
| | - Maximilien Garny
- Department Chemie Ludwig-Maximilians-Universität München Butenandtstrasse 5–13, Haus F 81377 München Germany
| | - Fabio Lima
- Global Discovery Chemistry Novartis Institutes for BioMedical Research 4057 Basel Switzerland
| | - Cara E. Brocklehurst
- Global Discovery Chemistry Novartis Institutes for BioMedical Research 4057 Basel Switzerland
| | - Konstantin Karaghiosoff
- Department Chemie Ludwig-Maximilians-Universität München Butenandtstrasse 5–13, Haus F 81377 München Germany
| | - Hendrik Zipse
- Department Chemie Ludwig-Maximilians-Universität München Butenandtstrasse 5–13, Haus F 81377 München Germany
| | - Paul Knochel
- Department Chemie Ludwig-Maximilians-Universität München Butenandtstrasse 5–13, Haus F 81377 München Germany
| |
Collapse
|
22
|
Jeong E, Heo J, Jin S, Kim D, Chang S. KO tBu-Catalyzed 1,2-Silaboration of N-Heteroarenes to Access 2-Silylheterocycles: A Cooperative Model for the Regioselectivity. ACS Catal 2022. [DOI: 10.1021/acscatal.2c01126] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Eunchan Jeong
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Korea
- Center for Catalytic Hydrocarbon Functionalization, Institute for Basic Science (IBS), Daejeon 34141, Korea
| | - Joon Heo
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Korea
- Center for Catalytic Hydrocarbon Functionalization, Institute for Basic Science (IBS), Daejeon 34141, Korea
| | - Seongho Jin
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Korea
- Center for Catalytic Hydrocarbon Functionalization, Institute for Basic Science (IBS), Daejeon 34141, Korea
| | - Dongwook Kim
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Korea
- Center for Catalytic Hydrocarbon Functionalization, Institute for Basic Science (IBS), Daejeon 34141, Korea
| | - Sukbok Chang
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Korea
- Center for Catalytic Hydrocarbon Functionalization, Institute for Basic Science (IBS), Daejeon 34141, Korea
| |
Collapse
|
23
|
Zheng S, Wang D, Huang M, Yu P. Rapid Generation of Tetrahydropyridines and Tetrahydroquinolines by Dearomative Cyanation/Grignard Addition. Chem Asian J 2022; 17:e202200077. [PMID: 35322570 DOI: 10.1002/asia.202200077] [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: 01/26/2022] [Revised: 03/15/2022] [Indexed: 11/06/2022]
Abstract
A rapid, practical and scalable method for the reductant and tansition-metal-free synthesis of a variety of novel 2,4-disubstituted tetrahydropyridines and tetrahydroquinolines is disclosed. The method is based upon dearomative functionalization of pyridines or quinolines to generate amino nitrile intermediates as masked iminium ions, which then reacted rapidly with various Grignard reagents in complete stereocontrol.
Collapse
Affiliation(s)
- Shixin Zheng
- Tianjin University of Science and Technology, Department of Chemistry, Tianjin, CHINA
| | - Dong Wang
- Xinjiang University, College of Chemistry, No. 777, Hua Rui Street, Shui Mo Gou District, 830046, Urumqi, CHINA
| | - Mindong Huang
- Tianjin University of Science and Technology, Department of Chemistry, Tianjin, CHINA
| | - Peng Yu
- Tianjin University of Science and Technology, Department of Chemistry, Tianjin, CHINA
| |
Collapse
|
24
|
Liu Z, He JH, Zhang M, Shi ZJ, Tang H, Zhou XY, Tian JJ, Wang XC. Borane-Catalyzed C3-Alkylation of Pyridines with Imines, Aldehydes, or Ketones as Electrophiles. J Am Chem Soc 2022; 144:4810-4818. [PMID: 35258282 DOI: 10.1021/jacs.2c00962] [Citation(s) in RCA: 26] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
Achieving C3-selective pyridine functionalization is a longstanding challenge in organic chemistry. The existing methods, including electrophilic aromatic substitution and C-H activation, often require harsh reaction conditions and excess pyridine and generate multiple regioisomers. Herein, we report a method for borane-catalyzed tandem reactions that result in exclusively C3-selective alkylation of pyridines. These tandem reactions consist of pyridine hydroboration, nucleophilic addition of the resulting dihydropyridine to an imine, an aldehyde, or a ketone, and subsequent oxidative aromatization. Because the pyridine is the limiting reactant and the reaction conditions are mild, this method constitutes a practical tool for late-stage functionalization of structurally complex pharmaceuticals bearing a pyridine moiety.
Collapse
Affiliation(s)
- Zhong Liu
- State Key Laboratory and Institute of Elemento-Organic Chemistry, Haihe Laboratory of Sustainable Chemical Transformations, Frontiers Science Center for New Organic Matter, College of Chemistry, Nankai University, Tianjin 300071, China
| | - Jia-Hao He
- State Key Laboratory and Institute of Elemento-Organic Chemistry, Haihe Laboratory of Sustainable Chemical Transformations, Frontiers Science Center for New Organic Matter, College of Chemistry, Nankai University, Tianjin 300071, China
| | - Ming Zhang
- State Key Laboratory and Institute of Elemento-Organic Chemistry, Haihe Laboratory of Sustainable Chemical Transformations, Frontiers Science Center for New Organic Matter, College of Chemistry, Nankai University, Tianjin 300071, China
| | - Zhu-Jun Shi
- State Key Laboratory and Institute of Elemento-Organic Chemistry, Haihe Laboratory of Sustainable Chemical Transformations, Frontiers Science Center for New Organic Matter, College of Chemistry, Nankai University, Tianjin 300071, China
| | - Han Tang
- State Key Laboratory and Institute of Elemento-Organic Chemistry, Haihe Laboratory of Sustainable Chemical Transformations, Frontiers Science Center for New Organic Matter, College of Chemistry, Nankai University, Tianjin 300071, China
| | - Xin-Yue Zhou
- State Key Laboratory and Institute of Elemento-Organic Chemistry, Haihe Laboratory of Sustainable Chemical Transformations, Frontiers Science Center for New Organic Matter, College of Chemistry, Nankai University, Tianjin 300071, China
| | - Jun-Jie Tian
- State Key Laboratory and Institute of Elemento-Organic Chemistry, Haihe Laboratory of Sustainable Chemical Transformations, Frontiers Science Center for New Organic Matter, College of Chemistry, Nankai University, Tianjin 300071, China
| | - Xiao-Chen Wang
- State Key Laboratory and Institute of Elemento-Organic Chemistry, Haihe Laboratory of Sustainable Chemical Transformations, Frontiers Science Center for New Organic Matter, College of Chemistry, Nankai University, Tianjin 300071, China
| |
Collapse
|
25
|
Abstract
Electrophilic nitropyridines react with sulfonyl-stabilized carbanions to give products of C-H alkylation via vicarious nucleophilic substitution. The process consists of formation of the Meisenheimer-type adduct followed by base-induced β-elimination of the sulfinic acid (e.g., PhSO2H). Mechanistic studies reveal that in the latter step alkyl substituent and adjacent nitro group tend to planarize for effective stabilization of benzyl anion, and thus, adduct of hindered isopropyl carbanion remains stable toward elimination for steric reasons.
Collapse
Affiliation(s)
- Damian Antoniak
- Faculty of Chemistry, University of Warsaw, Pasteura 1, 02-093 Warsaw, Poland
| | - Michał Barbasiewicz
- Faculty of Chemistry, University of Warsaw, Pasteura 1, 02-093 Warsaw, Poland
| |
Collapse
|
26
|
Dhayalan V, Dandela R, Devi KB, Dhanusuraman R. Synthesis and Applications of Asymmetric Catalysis Using Chiral Ligands Containing Quinoline Motifs. SYNOPEN 2022. [DOI: 10.1055/a-1743-4534] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022] Open
Abstract
In the past decade, asymmetric synthesis of chiral ligands containing quinoline motifs, a family of natural products displaying a broad range of structural diversity and their metal complexes have become the most significant methodology for the generation of enantiomerically pure compounds of biological and pharmaceutical interest. This review provides comprehensive insight on the plethora of nitrogen-based chiral ligands containing quinoline motifs and organocatalysts used in asymmetric synthesis. However, it is circumscribed to the synthesis of quinoline-based chiral ligands and metal complexes, and their applications in asymmetric synthesis as a homogeneous and heterogeneous catalyst.
Collapse
Affiliation(s)
- Vasudevan Dhayalan
- Department of Chemistry, National Institute of Technology Puducherry, Karaikal, India
| | - Rambabu Dandela
- Dept. of Industrial and Engineering Chemistry, Institute of Chemical Technology- IOC Bhubaneswar, Bhubaneswar, India
| | - K. Bavya Devi
- Department of Chemistry, Thassim Beevi Adbul Kader College for Women, Kilakarai, India
| | | |
Collapse
|
27
|
He L, Zhu Y, Xu Y. Copper‐Catalyzed Ligand‐Free Remote C−H Bond Amidation of 8‐Amidoquinolines with
N
‐Fluorobenzenesulfonimide. ChemistrySelect 2021. [DOI: 10.1002/slct.202102981] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Li He
- School of Chemistry and Chemical Engineering Harbin Institute of Technology Harbin 150001 China
| | - Yihang Zhu
- School of Chemistry and Chemical Engineering Harbin Institute of Technology Harbin 150001 China
| | - Yongjun Xu
- School of Chemistry and Chemical Engineering Harbin Institute of Technology Harbin 150001 China
| |
Collapse
|
28
|
Choi J, Laudadio G, Godineau E, Baran PS. Practical and Regioselective Synthesis of C-4-Alkylated Pyridines. J Am Chem Soc 2021; 143:11927-11933. [PMID: 34318659 DOI: 10.1021/jacs.1c05278] [Citation(s) in RCA: 37] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
The direct position-selective C-4 alkylation of pyridines has been a long-standing challenge in heterocyclic chemistry, particularly from pyridine itself. Historically this has been addressed using prefunctionalized materials to avoid overalkylation and mixtures of regioisomers. This study reports the invention of a simple maleate-derived blocking group for pyridines that enables exquisite control for Minisci-type decarboxylative alkylation at C-4 that allows for inexpensive access to these valuable building blocks. The method is employed on a variety of different pyridines and carboxylic acid alkyl donors, is operationally simple and scalable, and is applied to access known structures in a rapid and inexpensive fashion. Finally, this work points to an interesting strategic departure for the use of Minisci chemistry at the earliest possible stage (native pyridine) rather than current dogma that almost exclusively employs Minisci chemistry as a late-stage functionalization technique.
Collapse
Affiliation(s)
- Jin Choi
- Department of Chemistry, Scripps Research, 10550 North Torrey Pines Road, La Jolla, California 92037, United States
| | - Gabriele Laudadio
- Department of Chemistry, Scripps Research, 10550 North Torrey Pines Road, La Jolla, California 92037, United States
| | - Edouard Godineau
- Process Research, Syngenta Crop Protection, Schaffhauserstrasse 101, CH-4332 Stein, Switzerland
| | - Phil S Baran
- Department of Chemistry, Scripps Research, 10550 North Torrey Pines Road, La Jolla, California 92037, United States
| |
Collapse
|
29
|
Heinz B, Djukanovic D, Filipponi P, Martin B, Karaghiosoff K, Knochel P. Regioselective difunctionalization of pyridines via 3,4-pyridynes. Chem Sci 2021; 12:6143-6147. [PMID: 33996011 PMCID: PMC8098683 DOI: 10.1039/d1sc01208h] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2021] [Accepted: 03/24/2021] [Indexed: 11/21/2022] Open
Abstract
A new regioselective 3,4-difunctionalization of 3-chloropyridines via 3,4-pyridyne intermediates is reported. Regioselective lithiation of 3-chloro-2-ethoxypyridine and a related 2-thio-derivative followed by treatment with aryl- and alkylmagnesium halides as well as magnesium thiolates at -78 °C produced 3,4-pyridynes during heating to 75 °C. Regioselective addition of the Grignard moiety in position 4 followed by an electrophilic quench in position 3 led to various 2,3,4-trisubstituted pyridines. This method was adapted into a continuous flow set-up. As an application, we have prepared a key intermediate for (±)-paroxetine.
Collapse
Affiliation(s)
- Benjamin Heinz
- Ludwig-Maximilians-Universität München, Department Chemie Butenandtstraße 5-13 81377 Munich Germany
| | - Dimitrije Djukanovic
- Ludwig-Maximilians-Universität München, Department Chemie Butenandtstraße 5-13 81377 Munich Germany
| | - Paolo Filipponi
- Novartis Pharma AG, Chemical Development Fabrikstraße 4002 Basel Switzerland
| | - Benjamin Martin
- Novartis Pharma AG, Chemical Development Fabrikstraße 4002 Basel Switzerland
| | - Konstantin Karaghiosoff
- Ludwig-Maximilians-Universität München, Department Chemie Butenandtstraße 5-13 81377 Munich Germany
| | - Paul Knochel
- Ludwig-Maximilians-Universität München, Department Chemie Butenandtstraße 5-13 81377 Munich Germany
| |
Collapse
|
30
|
Shen J, Zhang Y, Yu Y, Wang M. Metal-free visible-light-induced photoredox-catalyzed intermolecular pyridylation/phosphinoylation of alkenes. Org Chem Front 2021. [DOI: 10.1039/d0qo01218a] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
A visible-light-induced and photoredox-catalyzed intermolecular pyridylation/phosphinoylation of alkenes using 4-cyanopyridine and diphenylphosphine oxide under mild metal-free conditions has been reported.
Collapse
Affiliation(s)
- Jiaxuan Shen
- Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals
- Key Laboratory of Green Chemical Media and Reactions
- Ministry of Education
- School of Chemistry and Chemical Engineering Henan Normal University
- Xinxiang
| | - Yipin Zhang
- Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals
- Key Laboratory of Green Chemical Media and Reactions
- Ministry of Education
- School of Chemistry and Chemical Engineering Henan Normal University
- Xinxiang
| | - Yanjiang Yu
- Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals
- Key Laboratory of Green Chemical Media and Reactions
- Ministry of Education
- School of Chemistry and Chemical Engineering Henan Normal University
- Xinxiang
| | - Manman Wang
- Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals
- Key Laboratory of Green Chemical Media and Reactions
- Ministry of Education
- School of Chemistry and Chemical Engineering Henan Normal University
- Xinxiang
| |
Collapse
|
31
|
Doraghi F, Kianmehr E, Foroumadi A. Metal-free regioselective C5-cyanoalkylation of the 8-aminoquinolineamides/sulfonamides via oxidative cross-dehydrogenative coupling with alkylnitriles. Org Chem Front 2021. [DOI: 10.1039/d1qo00570g] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
A practical, versatile and Metal-free regioselective C5-cyanoalkylation of the 8-aminoquinolineamides/sulfonamides with acetonitrile has been described.
Collapse
Affiliation(s)
- Fatemeh Doraghi
- School of Chemistry, College of Science, University of Tehran, Tehran 1417614411, Iran
| | - Ebrahim Kianmehr
- School of Chemistry, College of Science, University of Tehran, Tehran 1417614411, Iran
| | - Alireza Foroumadi
- Department of Medicinal Chemistry, Faculty of Pharmacy and Pharmaceutical Sciences Research Center, Tehran University of Medical Sciences, Tehran, Iran
| |
Collapse
|
32
|
Wang Y, Li R, Guan W, Li Y, Li X, Yin J, Zhang G, Zhang Q, Xiong T, Zhang Q. Organoborohydride-catalyzed Chichibabin-type C4-position alkylation of pyridines with alkenes assisted by organoboranes. Chem Sci 2020; 11:11554-11561. [PMID: 34094401 PMCID: PMC8162492 DOI: 10.1039/d0sc04808a] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023] Open
Abstract
The first NaBEt3H-catalyzed intermolecular Chichibabin-type alkylation of pyridine and its derivatives with alkenes as the latent nucleophiles is presented with the assistance of BEt3, and a series of branched C4-alkylation pyridines, even highly congested all-carbon quaternary center-containing triarylmethanes can be obtained in a regiospecific manner. Therefore, the conventional reliance on high cost and low availability transition metal catalysts, prior formation of N-activated pyridines, organometallic reagents, and extra oxidation operation for the construction of a C–C bond at the C4-position of the pyridines in previous methods are not required. The corresponding mechanism and the key roles of the organoborane were elaborated by the combination of H/D scrambling experiments, 11B NMR studies, intermediate trapping experiments and computational studies. This straightforward and mechanistically distinct organocatalytic technology not only opens a new door for the classical but still far less well-developed Chichibabin-type reaction, but also sets up a new platform for the development of novel C–C bond-forming methods. The first NaBEt3H-catalyzed intermolecular Chichibabin-type alkylation of pyridines with alkenes as the latent nucleophiles is presented in the presence of BEt3, and a series of branched C4-alkylated pyridines were obtained in a regiospecific manner.![]()
Collapse
Affiliation(s)
- Ying Wang
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, Department of Chemistry, Northeast Normal University Changchun 130024 China
| | - Runhan Li
- Institute of Functional Material Chemistry, Department of Chemistry, Northeast Normal University Changchun 130024 China
| | - Wei Guan
- Institute of Functional Material Chemistry, Department of Chemistry, Northeast Normal University Changchun 130024 China
| | - Yanfei Li
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, Department of Chemistry, Northeast Normal University Changchun 130024 China
| | - Xiaohong Li
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, Department of Chemistry, Northeast Normal University Changchun 130024 China
| | - Jianjun Yin
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, Department of Chemistry, Northeast Normal University Changchun 130024 China
| | - Ge Zhang
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, Department of Chemistry, Northeast Normal University Changchun 130024 China
| | - Qian Zhang
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, Department of Chemistry, Northeast Normal University Changchun 130024 China
| | - Tao Xiong
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, Department of Chemistry, Northeast Normal University Changchun 130024 China
| | - Qian Zhang
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, Department of Chemistry, Northeast Normal University Changchun 130024 China .,State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences 345 Lingling Lu Shanghai 200032 China
| |
Collapse
|
33
|
Jo W, Baek SY, Hwang C, Heo J, Baik MH, Cho SH. ZnMe2-Mediated, Direct Alkylation of Electron-Deficient N-Heteroarenes with 1,1-Diborylalkanes: Scope and Mechanism. J Am Chem Soc 2020; 142:13235-13245. [DOI: 10.1021/jacs.0c06827] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Woohyun Jo
- Department of Chemistry, Pohang University of Science and Technology (POSTECH), Pohang, 37673, Republic of Korea
| | - Seung-yeol Baek
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, 34141, Republic of Korea
- Center for Catalytic Hydrocarbon Functionalizations, Institute for Basic Science (IBS), Daejeon, 34141, Republic of Korea
| | - Chiwon Hwang
- Department of Chemistry, Pohang University of Science and Technology (POSTECH), Pohang, 37673, Republic of Korea
| | - Joon Heo
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, 34141, Republic of Korea
- Center for Catalytic Hydrocarbon Functionalizations, Institute for Basic Science (IBS), Daejeon, 34141, Republic of Korea
| | - Mu-Hyun Baik
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, 34141, Republic of Korea
- Center for Catalytic Hydrocarbon Functionalizations, Institute for Basic Science (IBS), Daejeon, 34141, Republic of Korea
| | - Seung Hwan Cho
- Department of Chemistry, Pohang University of Science and Technology (POSTECH), Pohang, 37673, Republic of Korea
| |
Collapse
|
34
|
Wang D, Jiang Y, Dong L, Li G, Sun B, Désaubry L, Yu P. One-Pot Selective Saturation and Functionalization of Heteroaromatics Leading to Dihydropyridines and Dihydroquinolines. J Org Chem 2020; 85:5027-5037. [PMID: 32154711 DOI: 10.1021/acs.joc.0c00314] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
A one-pot regioselective two C-C-bond-forming dearomatization of pyridines and quinolines is disclosed. Two 3,4-betaines are identified for the first time as very useful organic synthons in heterocyclic chemistry. Furthermore, the chemical reactivity of the prepared trifluoromethyl ketones, a new type of push-pull enones, has been explored to develop straightforward methods for their functionalization. This protocol represents a breakthrough in the dearomatization of heteroaromatics as both the selective saturation and functionalization of heteroaromatics are achieved in high efficiency by the attachment of two substituents, including the valuable trifluoromethyl ketone group.
Collapse
Affiliation(s)
- Dong Wang
- College of Biotechnology, Tianjin University of Science and Technology, Tianjin 300457, China
| | - Yuanyang Jiang
- College of Biotechnology, Tianjin University of Science and Technology, Tianjin 300457, China
| | - Linru Dong
- College of Biotechnology, Tianjin University of Science and Technology, Tianjin 300457, China
| | - Gaoyu Li
- College of Biotechnology, Tianjin University of Science and Technology, Tianjin 300457, China
| | - Baoying Sun
- College of Biotechnology, Tianjin University of Science and Technology, Tianjin 300457, China
| | - Laurent Désaubry
- College of Biotechnology, Tianjin University of Science and Technology, Tianjin 300457, China.,Laboratory of Medicinal Chemistry and Cardio-Oncology, FRE2033, CNRS, Institut Le Bel, F-67081 Strasbourg, France
| | - Peng Yu
- College of Biotechnology, Tianjin University of Science and Technology, Tianjin 300457, China
| |
Collapse
|
35
|
Abstract
The nucleophilic addition of alkyl, benzyl, and allyl organozinc reagents to protected pyridinium riboses proceeds under mild conditions and with yields of >90% in several cases and complete regioselectivity for the 4-position.
Collapse
Affiliation(s)
- Farbod Salahi
- Department of Chemistry and Biochemistry, University of Notre Dame, 305E McCourtney Hall, Notre Dame, IN46556, USA
| | - Olaf Wiest
- Department of Chemistry and Biochemistry, University of Notre Dame, 305E McCourtney Hall, Notre Dame, IN46556, USA
| |
Collapse
|
36
|
Gao L, Wang G, Chen H, Cao J, Su X, Liu X, Yang M, Cheng X, Li S. Metal-free reductive coupling of aliphatic aldehydes/ketones with 4-cyanopyridines: expanded scope and mechanistic studies. Org Chem Front 2020. [DOI: 10.1039/d0qo00827c] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
A practical B2pin2 mediated reductive coupling of 4-cyanopyridine with aliphatic aldehydes/ketones has been established. This metal-free protocol provides a convenient route to construct a wide range of C4-pyridine-functionalized alcohols.
Collapse
Affiliation(s)
- Liuzhou Gao
- Key Laboratory of Mesoscopic Chemistry of Ministry of Education
- Institute of Theoretical and Computational Chemistry
- School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing
| | - Guoqiang Wang
- Key Laboratory of Mesoscopic Chemistry of Ministry of Education
- Institute of Theoretical and Computational Chemistry
- School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing
| | - Hui Chen
- Key Laboratory of Mesoscopic Chemistry of Ministry of Education
- Institute of Theoretical and Computational Chemistry
- School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing
| | - Jia Cao
- Key Laboratory of Mesoscopic Chemistry of Ministry of Education
- Institute of Theoretical and Computational Chemistry
- School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing
| | - Xiaoshi Su
- Key Laboratory of Mesoscopic Chemistry of Ministry of Education
- Institute of Theoretical and Computational Chemistry
- School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing
| | - Xueting Liu
- Key Laboratory of Mesoscopic Chemistry of Ministry of Education
- Institute of Theoretical and Computational Chemistry
- School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing
| | - Mo Yang
- Key Laboratory of Mesoscopic Chemistry of Ministry of Education
- Institute of Theoretical and Computational Chemistry
- School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing
| | - Xu Cheng
- Institute of Chemistry and Biomedical Sciences
- Jiangsu Key Laboratory of Advanced Organic Material
- School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing
| | - Shuhua Li
- Key Laboratory of Mesoscopic Chemistry of Ministry of Education
- Institute of Theoretical and Computational Chemistry
- School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing
| |
Collapse
|
37
|
Zhu L, Sheng X, Li Y, Lu D, Qiu R, Kambe N. Nickel-Catalyzed Remote C4–H Arylation of 8-Aminoquinolines. Org Lett 2019; 21:6785-6789. [DOI: 10.1021/acs.orglett.9b02403] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Affiliation(s)
- Longzhi Zhu
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, PR China
| | - Xinghao Sheng
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, PR China
| | - You Li
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, PR China
| | - Dong Lu
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, PR China
| | - Renhua Qiu
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, PR China
| | - Nobuaki Kambe
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, PR China
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, Suita, Osaka 565-0871, Japan
| |
Collapse
|
38
|
Sen C, Sahoo T, Singh H, Suresh E, Ghosh SC. Visible Light-Promoted Photocatalytic C-5 Carboxylation of 8-Aminoquinoline Amides and Sulfonamides via a Single Electron Transfer Pathway. J Org Chem 2019; 84:9869-9896. [PMID: 31307188 DOI: 10.1021/acs.joc.9b00942] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
An efficient photocatalytic method was developed for the remote C5-H bond carboxylation of 8-aminoquinoline amide and sulfonamide derivatives. This methodology uses in situ generated •CBr3 radical as a carboxylation agent with alcohol and is further extended to a variety of arenes and heteroarenes to synthesize the desired carboxylated product in moderate-to-good yields. The reaction proceeding through a single electron transfer pathway was established by a control experiment, and a butylated hydroxytoluene-trapped aryl radical cation intermediate in high-resolution mass spectrometry was identified.
Collapse
|
39
|
Ma B, Lu F, Yang H, Gu X, Li Z, Li R, Pei H, Luo D, Zhang H, Lei A. Visible Light Mediated External Oxidant Free Selective C5 Bromination of 8‐Aminoquinoline Amides under Ambient Conditions. ASIAN J ORG CHEM 2019. [DOI: 10.1002/ajoc.201900293] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Bin Ma
- National Research Center for Carbohydrate SynthesisJiangxiNormal University Nanchang 330022, Jiangxi P. R. China
| | - Fangling Lu
- National Research Center for Carbohydrate SynthesisJiangxiNormal University Nanchang 330022, Jiangxi P. R. China
| | - Hongmei Yang
- National Research Center for Carbohydrate SynthesisJiangxiNormal University Nanchang 330022, Jiangxi P. R. China
| | - Xin Gu
- National Research Center for Carbohydrate SynthesisJiangxiNormal University Nanchang 330022, Jiangxi P. R. China
| | - Zhen Li
- National Research Center for Carbohydrate SynthesisJiangxiNormal University Nanchang 330022, Jiangxi P. R. China
| | - Ru Li
- National Research Center for Carbohydrate SynthesisJiangxiNormal University Nanchang 330022, Jiangxi P. R. China
| | - Hongqiao Pei
- National Research Center for Carbohydrate SynthesisJiangxiNormal University Nanchang 330022, Jiangxi P. R. China
| | - Dan Luo
- National Research Center for Carbohydrate SynthesisJiangxiNormal University Nanchang 330022, Jiangxi P. R. China
| | - Heng Zhang
- College of Chemistry and Molecular Sciences, the Institute forAdvanced Studies (IAS)Wuhan University Wuhan, Hubei 430072 P. R. China
| | - Aiwen Lei
- National Research Center for Carbohydrate SynthesisJiangxiNormal University Nanchang 330022, Jiangxi P. R. China
- College of Chemistry and Molecular Sciences, the Institute forAdvanced Studies (IAS)Wuhan University Wuhan, Hubei 430072 P. R. China
| |
Collapse
|
40
|
Wang D, Wang Z, Liu Z, Huang M, Hu J, Yu P. Strategic C–C Bond-Forming Dearomatization of Pyridines and Quinolines. Org Lett 2019; 21:4459-4463. [DOI: 10.1021/acs.orglett.9b01247] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Affiliation(s)
- Dong Wang
- College of Biotechnology, Tianjin University of Science and Technology, Tianjin 300457, China
| | - Zhentao Wang
- College of Biotechnology, Tianjin University of Science and Technology, Tianjin 300457, China
| | - Zhenlin Liu
- College of Biotechnology, Tianjin University of Science and Technology, Tianjin 300457, China
| | - Mindong Huang
- College of Biotechnology, Tianjin University of Science and Technology, Tianjin 300457, China
| | - Jianyong Hu
- College of Biotechnology, Tianjin University of Science and Technology, Tianjin 300457, China
| | - Peng Yu
- College of Biotechnology, Tianjin University of Science and Technology, Tianjin 300457, China
| |
Collapse
|
41
|
Balkenhohl M, Jangra H, Lenz T, Ebeling M, Zipse H, Karaghiosoff K, Knochel P. Lewis‐Säure‐dirigierte regioselektive Metallierungen an Pyridazin. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201903839] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Moritz Balkenhohl
- Ludwig-Maximilians-Universität MünchenDepartment Chemie Butenandtstrasse 5–13, Haus F 81377 München Deutschland
| | - Harish Jangra
- Ludwig-Maximilians-Universität MünchenDepartment Chemie Butenandtstrasse 5–13, Haus F 81377 München Deutschland
| | - Tobias Lenz
- Ludwig-Maximilians-Universität MünchenDepartment Chemie Butenandtstrasse 5–13, Haus F 81377 München Deutschland
| | - Marian Ebeling
- Ludwig-Maximilians-Universität MünchenDepartment Chemie Butenandtstrasse 5–13, Haus F 81377 München Deutschland
| | - Hendrik Zipse
- Ludwig-Maximilians-Universität MünchenDepartment Chemie Butenandtstrasse 5–13, Haus F 81377 München Deutschland
| | - Konstantin Karaghiosoff
- Ludwig-Maximilians-Universität MünchenDepartment Chemie Butenandtstrasse 5–13, Haus F 81377 München Deutschland
| | - Paul Knochel
- Ludwig-Maximilians-Universität MünchenDepartment Chemie Butenandtstrasse 5–13, Haus F 81377 München Deutschland
| |
Collapse
|
42
|
Paul A, Seidel D. α-Functionalization of Cyclic Secondary Amines: Lewis Acid Promoted Addition of Organometallics to Transient Imines. J Am Chem Soc 2019; 141:8778-8782. [PMID: 31117670 DOI: 10.1021/jacs.9b04325] [Citation(s) in RCA: 87] [Impact Index Per Article: 17.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Cyclic imines, generated in situ from their corresponding N-lithiated amines and a ketone hydride acceptor, undergo reactions with a range of organometallic nucleophiles to generate α-functionalized amines in a single operation. Activation of the transient imines by Lewis acids that are compatible with the presence of lithium alkoxides was found to be crucial to accommodate a broad range of nucleophiles including lithium acetylides, Grignard reagents, and aryllithiums with attenuated reactivities.
Collapse
Affiliation(s)
- Anirudra Paul
- Center for Heterocyclic Compounds, Department of Chemistry , University of Florida , Gainesville , Florida 32611 , United States
| | - Daniel Seidel
- Center for Heterocyclic Compounds, Department of Chemistry , University of Florida , Gainesville , Florida 32611 , United States
| |
Collapse
|
43
|
Balkenhohl M, Jangra H, Lenz T, Ebeling M, Zipse H, Karaghiosoff K, Knochel P. Lewis Acid Directed Regioselective Metalations of Pyridazine. Angew Chem Int Ed Engl 2019; 58:9244-9247. [DOI: 10.1002/anie.201903839] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2019] [Indexed: 11/06/2022]
Affiliation(s)
- Moritz Balkenhohl
- Ludwig-Maximilians-Universität MünchenDepartment Chemie Butenandtstrasse 5–13, Haus F 81377 München Germany
| | - Harish Jangra
- Ludwig-Maximilians-Universität MünchenDepartment Chemie Butenandtstrasse 5–13, Haus F 81377 München Germany
| | - Tobias Lenz
- Ludwig-Maximilians-Universität MünchenDepartment Chemie Butenandtstrasse 5–13, Haus F 81377 München Germany
| | - Marian Ebeling
- Ludwig-Maximilians-Universität MünchenDepartment Chemie Butenandtstrasse 5–13, Haus F 81377 München Germany
| | - Hendrik Zipse
- Ludwig-Maximilians-Universität MünchenDepartment Chemie Butenandtstrasse 5–13, Haus F 81377 München Germany
| | - Konstantin Karaghiosoff
- Ludwig-Maximilians-Universität MünchenDepartment Chemie Butenandtstrasse 5–13, Haus F 81377 München Germany
| | - Paul Knochel
- Ludwig-Maximilians-Universität MünchenDepartment Chemie Butenandtstrasse 5–13, Haus F 81377 München Germany
| |
Collapse
|
44
|
Jeong E, Heo J, Park S, Chang S. Alkoxide‐Promoted Selective Hydroboration ofN‐Heteroarenes: Pivotal Roles of in situ Generated BH3in the Dearomatization Process. Chemistry 2019; 25:6320-6325. [DOI: 10.1002/chem.201901214] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2019] [Indexed: 12/27/2022]
Affiliation(s)
- Eunchan Jeong
- Department of ChemistryKorea Advanced Institute of, Science and Technology (KAIST) Daejeon 34141 Republic of Korea
- Center for Catalytic Hydrocarbon FunctionalizationsInstitute for Basic Science (IBS) Daejeon 34141 Republic of Korea
| | - Joon Heo
- Department of ChemistryKorea Advanced Institute of, Science and Technology (KAIST) Daejeon 34141 Republic of Korea
- Center for Catalytic Hydrocarbon FunctionalizationsInstitute for Basic Science (IBS) Daejeon 34141 Republic of Korea
| | - Sehoon Park
- Department of ChemistryKorea Advanced Institute of, Science and Technology (KAIST) Daejeon 34141 Republic of Korea
- Center for Catalytic Hydrocarbon FunctionalizationsInstitute for Basic Science (IBS) Daejeon 34141 Republic of Korea
| | - Sukbok Chang
- Department of ChemistryKorea Advanced Institute of, Science and Technology (KAIST) Daejeon 34141 Republic of Korea
- Center for Catalytic Hydrocarbon FunctionalizationsInstitute for Basic Science (IBS) Daejeon 34141 Republic of Korea
| |
Collapse
|
45
|
Jeong HJ, Chae S, Jeong K, Namgoong SK. The Diverse One-Pot Reactions of 2-Quinolylzincates: Homologation, Electrophilic Trapping, Hydroxylation, and Arylation Reactions. European J Org Chem 2018. [DOI: 10.1002/ejoc.201801192] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Hye Jin Jeong
- Department of Chemistry; Seoul Women's University; 01797 Seoul Korea
| | - Suyeon Chae
- Department of Chemistry; Seoul Women's University; 01797 Seoul Korea
| | - Keunhong Jeong
- Department of Chemistry; Korea Military Academy; 01805 Seoul Korea
| | | |
Collapse
|
46
|
Ghosh T, Maity P, Ranu BC. Cobalt-Catalyzed Remote C-4 Functionalization of 8-Aminoquinoline Amides with Ethers via C–H Activation under Visible-Light Irradiation. Access to α-Heteroarylated Ether Derivatives. Org Lett 2018; 20:1011-1014. [DOI: 10.1021/acs.orglett.7b03955] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Tubai Ghosh
- Department of Organic Chemistry, Indian Association for the Cultivation of Science, Jadavpur, Kolkata 700032, India
| | - Pintu Maity
- Department of Organic Chemistry, Indian Association for the Cultivation of Science, Jadavpur, Kolkata 700032, India
| | - Brindaban C. Ranu
- Department of Organic Chemistry, Indian Association for the Cultivation of Science, Jadavpur, Kolkata 700032, India
| |
Collapse
|
47
|
Zhao L, Li P, Xie X, Wang L. Selective remote C–H trifluoromethylation of aminoquinolines with CF3SO2Na under visible light irradiation in the absence of an external photocatalyst. Org Chem Front 2018. [DOI: 10.1039/c8qo00229k] [Citation(s) in RCA: 45] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
A selective remote C–H trifluoromethylation of aminoquinolines with sodium trifluoromethanesulfinate (CF3SO2Na) under visible-light irradiation without an external photocatalyst was developed.
Collapse
Affiliation(s)
- Lulu Zhao
- Department of Chemistry
- Huaibei Normal University
- Huaibei
- P. R. China
| | - Pinhua Li
- Department of Chemistry
- Huaibei Normal University
- Huaibei
- P. R. China
| | - Xiaoyu Xie
- Department of Chemistry
- Huaibei Normal University
- Huaibei
- P. R. China
| | - Lei Wang
- Department of Chemistry
- Huaibei Normal University
- Huaibei
- P. R. China
- State Key Laboratory of Organometallic Chemistry
| |
Collapse
|
48
|
Das J, Sarkar A, Ghosh P. Friedelane triterpenoids: transformations toward A-ring modifications including 2-homoderivatives. NEW J CHEM 2018. [DOI: 10.1039/c8nj00009c] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Common reaction strategies were employed on suitable substrates to achieve a series of C2,C3-; C3,C4- and C2,C3,C4-functionalized (including 2-homo-) friedelane triterpenoids with just one to four efficient steps.
Collapse
Affiliation(s)
- Jayanta Das
- Natural Products and Polymer Chemistry Laboratory
- Department of Chemistry
- North Bengal University
- Darjeeling-734013
- India
| | - Antara Sarkar
- Natural Products and Polymer Chemistry Laboratory
- Department of Chemistry
- North Bengal University
- Darjeeling-734013
- India
| | - Pranab Ghosh
- Natural Products and Polymer Chemistry Laboratory
- Department of Chemistry
- North Bengal University
- Darjeeling-734013
- India
| |
Collapse
|
49
|
Jumde RP, Lanza F, Pellegrini T, Harutyunyan SR. Highly enantioselective catalytic synthesis of chiral pyridines. Nat Commun 2017; 8:2058. [PMID: 29233959 PMCID: PMC5727103 DOI: 10.1038/s41467-017-01966-7] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2017] [Accepted: 10/30/2017] [Indexed: 11/20/2022] Open
Abstract
General methods to prepare chiral pyridine derivatives are greatly sought after due to their significance in medicinal chemistry. Here, we report highly enantioselective catalytic transformations of poorly reactive β-substituted alkenyl pyridines to access a wide range of alkylated chiral pyridines. The simple methodology involves reactivity enhancement via Lewis acid (LA) activation, the use of readily available and highly reactive Grignard reagents, and a copper-chiral diphosphine ligand catalyst. Apart from allowing the introduction of different linear, branched, cyclic, and functionalised alkyl chains at the β-position of alkenyl pyridines, the catalytic system also shows high functional group tolerance. Chiral pyridines are valuable building blocks in medicinal chemistry applications. Here, the authors report the copper-catalysed Lewis acid-assisted asymmetric alkylation of β-substituted alkenyl pyridines with Grignard reagents affording chiral pyridines with excellent enantioselectivity.
Collapse
Affiliation(s)
- Ravindra P Jumde
- Stratingh Institute for Chemistry, University of Groningen, Nijenborgh 4, 9747 AG, Groningen, The Netherlands
| | - Francesco Lanza
- Stratingh Institute for Chemistry, University of Groningen, Nijenborgh 4, 9747 AG, Groningen, The Netherlands
| | - Tilde Pellegrini
- Stratingh Institute for Chemistry, University of Groningen, Nijenborgh 4, 9747 AG, Groningen, The Netherlands
| | - Syuzanna R Harutyunyan
- Stratingh Institute for Chemistry, University of Groningen, Nijenborgh 4, 9747 AG, Groningen, The Netherlands.
| |
Collapse
|
50
|
Yu S, Sang HL, Ge S. Enantioselective Copper-Catalyzed Alkylation of Quinoline N-Oxides with Vinylarenes. Angew Chem Int Ed Engl 2017; 56:15896-15900. [PMID: 29044900 DOI: 10.1002/anie.201709411] [Citation(s) in RCA: 54] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2017] [Revised: 10/14/2017] [Indexed: 11/06/2022]
Abstract
An asymmetric copper-catalyzed alkylation of quinoline N-oxides with chiral Cu-alkyl species, generated by migratory insertion of a vinylarene into a chiral Cu-H complex, is reported. A variety of quinoline N-oxides and vinylarenes underwent this Cu-catalyzed enantioselective alkylation reaction, affording the corresponding chiral alkylated N-heteroarenes in high yield with high-to-excellent enantioselectivity. This enantioselective protocol represents the first general and practical approach to access a wide range of chiral alkylated quinolines.
Collapse
Affiliation(s)
- Songjie Yu
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore, 117543, Singapore
| | - Hui Leng Sang
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore, 117543, Singapore
| | - Shaozhong Ge
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore, 117543, Singapore
| |
Collapse
|