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Quintavalla A, Carboni D, Brusa A, Lombardo M. Selective Hydrofunctionalization of N-Allenyl Derivatives with Heteronucleophiles Catalyzed by Brønsted Acids. J Org Chem 2024; 89:2320-2342. [PMID: 38298114 DOI: 10.1021/acs.joc.3c02322] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2024]
Abstract
In this study, we present a novel and environmentally sustainable protocol for the γ-hydrofunctionalization of N-allenyl compounds using various heteronucleophiles catalyzed solely by simple Brønsted acids. The method displays remarkable attributes, highlighting its sustainability, efficiency, regio- and stereoselectivity, as well as its versatile applicability to diverse heteroatom-containing enamides. Notably, our approach eliminates the need for metal catalysts and toxic solvents, representing a significant advancement in greener chemistry practices. We demonstrate the broad scope of our protocol by successfully scaling up reactions to gram-scale syntheses, underscoring its robustness for potential industrial implementation. The resulting γ-heterosubstituted enamides offer new possibilities for further synthetic transformations, yielding highly functionalized compounds with diverse applications. Mechanistic investigations reveal the pivotal role of CSA as a catalyst, enabling alcohol addition via a covalent activation mode.
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Affiliation(s)
- Arianna Quintavalla
- Department of Chemistry "G. Ciamician", Alma Mater Studiorum-University of Bologna, Via P. Gobetti 85, 40129 Bologna, Italy
- Center for Chemical Catalysis-C3, Alma Mater Studiorum-University of Bologna, Via P. Gobetti 85, 40129 Bologna, Italy
| | - Davide Carboni
- Department of Chemistry "G. Ciamician", Alma Mater Studiorum-University of Bologna, Via P. Gobetti 85, 40129 Bologna, Italy
- Center for Chemical Catalysis-C3, Alma Mater Studiorum-University of Bologna, Via P. Gobetti 85, 40129 Bologna, Italy
| | - Alessandro Brusa
- Department of Chemistry "G. Ciamician", Alma Mater Studiorum-University of Bologna, Via P. Gobetti 85, 40129 Bologna, Italy
| | - Marco Lombardo
- Department of Chemistry "G. Ciamician", Alma Mater Studiorum-University of Bologna, Via P. Gobetti 85, 40129 Bologna, Italy
- Center for Chemical Catalysis-C3, Alma Mater Studiorum-University of Bologna, Via P. Gobetti 85, 40129 Bologna, Italy
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2
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Palomba M, Dias IFC, Cocchioni M, Marini F, Santi C, Bagnoli L. Vinylation of N-Heteroarenes through Addition/Elimination Reactions of Vinyl Selenones. Molecules 2023; 28:6026. [PMID: 37630278 PMCID: PMC10459632 DOI: 10.3390/molecules28166026] [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: 06/09/2023] [Revised: 07/31/2023] [Accepted: 08/09/2023] [Indexed: 08/27/2023] Open
Abstract
A new protocol for the synthesis of N-vinyl azoles using vinyl selenones and azoles in the presence of potassium hydroxide was developed. This reaction proceeded under mild and transition metal-free conditions through an addition/elimination cascade process. Both aromatic and aliphatic vinyl selenones and various mono-, bi- and tri-cyclic azoles can be tolerated and give terminal N-vinyl azoles in moderate to high yields. A plausible mechanism is also proposed.
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Affiliation(s)
| | | | | | | | | | - Luana Bagnoli
- Group of Catalysis, Synthesis and Organic Green Chemistry, Department of Pharmaceutical Sciences, University of Perugia, Via del Liceo, 1, 06123 Perugia, Italy
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3
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Nie Z, Lv H, Yang T, Su M, Luo W, Liu Q, Guo C. Synthesis of Non‐Terminal Alkenyl Ethers, Alkenyl Sulfides, and N‐Vinylazoles from Arylaldehydes or Diarylketones, DMSO and O, S, N‐Nucleophiles. Adv Synth Catal 2022. [DOI: 10.1002/adsc.202200020] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Zhiwen Nie
- College of Chemistry and Chemical Engineering Hunan University Changsha 410082 People's Republic of China
| | - Huifang Lv
- College of Chemistry and Chemical Engineering Hunan University Changsha 410082 People's Republic of China
| | - Tonglin Yang
- College of Chemistry and Chemical Engineering Hunan University Changsha 410082 People's Republic of China
| | - Miaodong Su
- College of Chemistry and Chemical Engineering Hunan University Changsha 410082 People's Republic of China
| | - Weiping Luo
- College of Chemistry and Chemical Engineering Hunan University Changsha 410082 People's Republic of China
| | - Qiang Liu
- College of Chemistry and Chemical Engineering Hunan University Changsha 410082 People's Republic of China
| | - Cancheng Guo
- College of Chemistry and Chemical Engineering Hunan University Changsha 410082 People's Republic of China
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4
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Zhao Y, Jin L, Guo J, Stephan DW. Catalytic hydroaminations of alkynes: A facile protocol to vinyl- carbazole derivatives via a frustrated Lewis pair mechanism. Chem Commun (Camb) 2022; 58:3039-3042. [DOI: 10.1039/d1cc07171h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
N-vinylcarbazoles are important skeletons for photoluminescent materials. Herein, a metal-free, B(C6F5)3 mediated carbazolation reaction of alkynes is reported. This provides 24 variants of N-vinylcarbazole derivatives. These N-vinylcarbazole products were obtained...
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5
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Csenki JT, Mészáros Á, Gonda Z, Novák Z. Stereoselective Direct N-Trifluoropropenylation of Heterocycles with a Hypervalent Iodonium Reagent. Chemistry 2021; 27:15638-15643. [PMID: 34549840 PMCID: PMC9293340 DOI: 10.1002/chem.202102840] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2021] [Indexed: 12/16/2022]
Abstract
The availability and synthesis of fluorinated enamine derivatives such as N-(3,3,3-trifluoropropenyl)heterocycles are challenging, especially through direct functionalization of the heterocyclic scaffold. Herein, a stereoselective N-trifluoropropenylation method based on the use of a bench-stable trifluoropropenyl iodonium salt is described. This reagent enables the straightforward trifluoropropenylation of various N-heterocycles under mild reaction conditions, providing trifluoromethyl enamine type moieties with high stereoselectivity and efficiency.
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Affiliation(s)
- János T Csenki
- ELTE "Lendület" Catalysis and Organic Synthesis Research Group, Institute of Chemistry, Eötvös Loránd University, Pázmány Péter stny. 1/A, 1117, Budapest, Hungary
| | - Ádám Mészáros
- ELTE "Lendület" Catalysis and Organic Synthesis Research Group, Institute of Chemistry, Eötvös Loránd University, Pázmány Péter stny. 1/A, 1117, Budapest, Hungary
| | - Zsombor Gonda
- ELTE "Lendület" Catalysis and Organic Synthesis Research Group, Institute of Chemistry, Eötvös Loránd University, Pázmány Péter stny. 1/A, 1117, Budapest, Hungary
| | - Zoltán Novák
- ELTE "Lendület" Catalysis and Organic Synthesis Research Group, Institute of Chemistry, Eötvös Loránd University, Pázmány Péter stny. 1/A, 1117, Budapest, Hungary
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6
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Affiliation(s)
- Shiv Kumar
- Synthetic Organic Chemistry Research Laboratory Department of Chemistry University of Delhi 110007 Delhi India
| | - Monika Patel
- Ramjas College Department of Chemistry University of Delhi 110007 Delhi India
| | - Akhilesh K. Verma
- Synthetic Organic Chemistry Research Laboratory Department of Chemistry University of Delhi 110007 Delhi India
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7
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Nie Z, Lv H, Li H, Su M, Yang T, Luo W, Liu Q, Guo C. Synthesis of Terminal
N
‐Vinylazoles from Aromatic Aldehydes, DMSO, and Azoles Based DMSO as Terminal Carbon Synthon. Adv Synth Catal 2021. [DOI: 10.1002/adsc.202100663] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Zhiwen Nie
- College of Chemistry and Chemical Engineering Hunan University Changsha 410082 People's Republic of China
| | - Huifang Lv
- College of Chemistry and Chemical Engineering Hunan University Changsha 410082 People's Republic of China
| | - Hui Li
- College of Chemistry and Chemical Engineering Hunan University Changsha 410082 People's Republic of China
| | - Miaodong Su
- College of Chemistry and Chemical Engineering Hunan University Changsha 410082 People's Republic of China
| | - Tonglin Yang
- College of Chemistry and Chemical Engineering Hunan University Changsha 410082 People's Republic of China
| | - Weiping Luo
- College of Chemistry and Chemical Engineering Hunan University Changsha 410082 People's Republic of China
| | - Qiang Liu
- College of Chemistry and Chemical Engineering Hunan University Changsha 410082 People's Republic of China
| | - Cancheng Guo
- College of Chemistry and Chemical Engineering Hunan University Changsha 410082 People's Republic of China
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8
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Wang Y, Zhao Z, Lv S, Ding L, Wang XN, Chang J. Nonmetal-catalyzed hydroamination of ynamides with amines. Org Chem Front 2021. [DOI: 10.1039/d1qo01052b] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
A TfOH-catalyzed hydroamination of ynamides with primary and secondary amines under mild reaction conditions is described for the efficient synthesis of N-arylimines and ethene-1,1-diamines.
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Affiliation(s)
- Yanru Wang
- Collaborative Innovation Center of New Drug Research and Safety Evaluation, Henan Province, Key Laboratory of Advanced Drug Preparation Technologies, Ministry of Education, School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou 450001, P. R. China
| | - Zhen Zhao
- Collaborative Innovation Center of New Drug Research and Safety Evaluation, Henan Province, Key Laboratory of Advanced Drug Preparation Technologies, Ministry of Education, School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou 450001, P. R. China
| | - Songkui Lv
- Collaborative Innovation Center of New Drug Research and Safety Evaluation, Henan Province, Key Laboratory of Advanced Drug Preparation Technologies, Ministry of Education, School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou 450001, P. R. China
| | - Lixia Ding
- Collaborative Innovation Center of New Drug Research and Safety Evaluation, Henan Province, Key Laboratory of Advanced Drug Preparation Technologies, Ministry of Education, School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou 450001, P. R. China
| | - Xiao-Na Wang
- Collaborative Innovation Center of New Drug Research and Safety Evaluation, Henan Province, Key Laboratory of Advanced Drug Preparation Technologies, Ministry of Education, School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou 450001, P. R. China
| | - Junbiao Chang
- Collaborative Innovation Center of New Drug Research and Safety Evaluation, Henan Province, Key Laboratory of Advanced Drug Preparation Technologies, Ministry of Education, School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou 450001, P. R. China
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9
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Jiang B, Jia J, Sun Y, Wang Y, Zeng J, Bu X, Shi L, Sun X, Yang X. γ-Carboline synthesis enabled by Rh(iii)-catalysed regioselective C-H annulation. Chem Commun (Camb) 2020; 56:13389-13392. [PMID: 33034593 DOI: 10.1039/d0cc04740f] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
A redox-neutral Rh(iii)-catalyzed C-H annulation of indolyl oximes was developed. Relying on the use of various alkynyl silanes as the terminal alkyne surrogates, the reaction exhibited a reverse regioselectivity, thus giving an exclusive and easy way for the synthesis of a wide range of substituent free γ-carbolines at C3 position with high efficiency. Deuterium-labelling experiments and kinetic analysis have preliminarily shed light on the working mode of this catalytic system.
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Affiliation(s)
- Bo Jiang
- Institute of Catalysis for Energy and Environment, College of Chemistry and Chemical Engineering, Shenyang Normal University, Shenyang 110034, P. R. China.
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10
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Affiliation(s)
- Sripati Jana
- RWTH Aachen University, Institute of Organic Chemistry, Landoltweg 1, D-52074 Aachen, Germany
| | - Feifei He
- RWTH Aachen University, Institute of Organic Chemistry, Landoltweg 1, D-52074 Aachen, Germany
| | - Rene M. Koenigs
- RWTH Aachen University, Institute of Organic Chemistry, Landoltweg 1, D-52074 Aachen, Germany
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11
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Sushmita, Aggarwal T, Saini KM, Verma AK. Olefin-Oriented Selective Synthesis of Linear and Branched N-Alkylated Heterocycles by Hydroamination. European J Org Chem 2020. [DOI: 10.1002/ejoc.202000373] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Affiliation(s)
- Sushmita
- Department of Chemistry; University of Delhi; 110007 Delhi India
| | - Trapti Aggarwal
- Department of Chemistry; University of Delhi; 110007 Delhi India
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12
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P. R, P. R. N, Omanakuttan VK, Babu SA, Sasikumar P, Praveen VK, Hopf H, John J. Superbase-Mediated Indirect Friedländer Reaction: A Transition Metal-Free Oxidative Annulation toward Functionalized Quinolines. European J Org Chem 2020. [DOI: 10.1002/ejoc.202000365] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Rahul P.
- Chemical Sciences and Technology Division; CSIR-National Institute for Interdisciplinary Science and Technology (CSIR-NIIST); 695019 Thiruvananthapuram India
- Academy of Scientific and Innovative Research (AcSIR); 201002 Ghaziabad India
| | - Nitha P. R.
- Chemical Sciences and Technology Division; CSIR-National Institute for Interdisciplinary Science and Technology (CSIR-NIIST); 695019 Thiruvananthapuram India
- Academy of Scientific and Innovative Research (AcSIR); 201002 Ghaziabad India
| | - Vishnu K. Omanakuttan
- Chemical Sciences and Technology Division; CSIR-National Institute for Interdisciplinary Science and Technology (CSIR-NIIST); 695019 Thiruvananthapuram India
- Academy of Scientific and Innovative Research (AcSIR); 201002 Ghaziabad India
| | - Sheba Ann Babu
- Chemical Sciences and Technology Division; CSIR-National Institute for Interdisciplinary Science and Technology (CSIR-NIIST); 695019 Thiruvananthapuram India
- Academy of Scientific and Innovative Research (AcSIR); 201002 Ghaziabad India
| | - P. Sasikumar
- Chemical Sciences and Technology Division; CSIR-National Institute for Interdisciplinary Science and Technology (CSIR-NIIST); 695019 Thiruvananthapuram India
| | - Vakayil K. Praveen
- Chemical Sciences and Technology Division; CSIR-National Institute for Interdisciplinary Science and Technology (CSIR-NIIST); 695019 Thiruvananthapuram India
- Academy of Scientific and Innovative Research (AcSIR); 201002 Ghaziabad India
| | - Henning Hopf
- Institut für Organische Chemie; Technische Universität Braunschweig; Hagenring 30 38106 Braunschweig Germany
| | - Jubi John
- Chemical Sciences and Technology Division; CSIR-National Institute for Interdisciplinary Science and Technology (CSIR-NIIST); 695019 Thiruvananthapuram India
- Academy of Scientific and Innovative Research (AcSIR); 201002 Ghaziabad India
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13
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Tan HB, Wang YF, Xu J, Hu CS. One-pot, multi-component synthesis of ethyl (E)-1-(3-ethoxy-3-oxoprop-1-en-1-yl)-2-aryl-2,5-dihydro-1H-benzo[b][1,4]diazepine-3-carboxylate derivatives. Tetrahedron Lett 2020. [DOI: 10.1016/j.tetlet.2020.151604] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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14
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Verma S, Kumar M, Verma AK. Aza-Henry Reaction: Synthesis of Nitronaphthylamines from 2-(Alkynyl)benzonitriles. Org Lett 2020; 22:130-134. [PMID: 31825635 DOI: 10.1021/acs.orglett.9b04045] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
A transition-metal-free approach for construction of nitronaphthylamines has been developed for the first time through aza-henry, chemoselective, and regioselective annulation of 2-alkynylbenzonitriles with nitromethane. In addition, the strategy provides an elegant, operationally simple and atom-economical route for the synthesis of nitroamino substituted heterocyclic scaffolds, featuring a range of sensitive functional groups. The reaction could also devise acetonitrile and acetophenone as nucleophile. The protocol has been successfully implemented for late-stage modification of bioactive molecules.
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Affiliation(s)
- Shalini Verma
- Department of Chemistry , University of Delhi , Delhi 110007 , India
| | - Manoj Kumar
- Department of Chemistry , University of Delhi , Delhi 110007 , India
| | - Akhilesh K Verma
- Department of Chemistry , University of Delhi , Delhi 110007 , India
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15
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Velezheva VS, Babii OL, Khodak AA, Alekseeva EA, Nelyubina YV, Godovikov IA, Peregudov AS, Majorov KB, Nikonenko BV. Novel base-initiated cascade reactions of hemiindigos to produce dipolar γ-carbolines and indole-fused pentacycles. RSC Adv 2019; 9:41402-41408. [PMID: 35541627 PMCID: PMC9076487 DOI: 10.1039/c9ra07807j] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2019] [Accepted: 12/04/2019] [Indexed: 12/03/2022] Open
Abstract
Novel continuous-flow cascade reactions are developed for producing 1,4-diaryl-disubstituted dipolar γ-carbolines 2 that contain a carboxylate group and their two pentacyclic precursors 6, 7 from hemiindigos 1. The nucleophilic and pro-electrophilic chemistry described is new to the hemiindigos 1, and it led to the discovery of antimycobacterial scaffold characteristic of rimino-type pentacycles 6, 7 and potent drug clofazimine. The new scaffold like clofazimine appears to be useful in developing lead agents active against drug-resistant/dormant TB. Based on hemiindigos we developed novel reactions for producing γ-carbolines and their precursors that appeared to be active against MTB.![]()
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Affiliation(s)
- V S Velezheva
- A. N. Nesmeyanov Institute of Organoelement Compounds of Russian Academy of Sciences Vavilova St. 28 119991 GSP-1, Moscow Russia
| | - O L Babii
- A. N. Nesmeyanov Institute of Organoelement Compounds of Russian Academy of Sciences Vavilova St. 28 119991 GSP-1, Moscow Russia
| | - A A Khodak
- A. N. Nesmeyanov Institute of Organoelement Compounds of Russian Academy of Sciences Vavilova St. 28 119991 GSP-1, Moscow Russia
| | - E A Alekseeva
- A. N. Nesmeyanov Institute of Organoelement Compounds of Russian Academy of Sciences Vavilova St. 28 119991 GSP-1, Moscow Russia
| | - Yu V Nelyubina
- A. N. Nesmeyanov Institute of Organoelement Compounds of Russian Academy of Sciences Vavilova St. 28 119991 GSP-1, Moscow Russia
| | - I A Godovikov
- A. N. Nesmeyanov Institute of Organoelement Compounds of Russian Academy of Sciences Vavilova St. 28 119991 GSP-1, Moscow Russia
| | - A S Peregudov
- A. N. Nesmeyanov Institute of Organoelement Compounds of Russian Academy of Sciences Vavilova St. 28 119991 GSP-1, Moscow Russia
| | - K B Majorov
- Laboratory for Immunogenetics, Central Institute for Tuberculosis Moscow Russia
| | - B V Nikonenko
- Laboratory for Immunogenetics, Central Institute for Tuberculosis Moscow Russia
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