1
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Li L, Li Y, Yan C, Zhang J, Jiang Y. Nickel-Catalyzed Multicomponent Assembly of Alkynes toward α-CF 3-Alkenes. Org Lett 2024; 26:5566-5570. [PMID: 38904403 DOI: 10.1021/acs.orglett.4c01975] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/22/2024]
Abstract
We disclose an efficient nickel catalytic system for expediting the coupling of alkynes with fluoroalkyl hydrazones and boronic acids, thus facilitating the synthesis of stereospecific α-fluoroalkyl-alkene derivatives. 3H-Pyrazoles might be involved as key intermediates through a nitrogen-releasing process, enabling subsequent coupling with boronic acids to afford 1,2-difunctional alkenes in a highly efficient and step-economical fashion. This tandem platform demonstrates broad functional group tolerance, including complex natural products and drug-like molecules.
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Affiliation(s)
- Ling Li
- State Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals of Guizhou University, Guiyang 550025, China
| | - Yingmei Li
- State Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals of Guizhou University, Guiyang 550025, China
| | - Chongchong Yan
- State Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals of Guizhou University, Guiyang 550025, China
| | - Jian Zhang
- State Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals of Guizhou University, Guiyang 550025, China
| | - Yaojia Jiang
- State Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals of Guizhou University, Guiyang 550025, China
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2
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Chennamsetti H, Rathore KS, Chatterjee S, Mandal PK, Katukojvala S. Triple Nucleophilic Head-to-Tail Cascade Polycyclization of Diazodienals via Combination Catalysis: Direct Access to Cyclopentane Fused Aza-Polycycles with Six-Contiguous Stereocenters. JACS AU 2024; 4:2099-2107. [PMID: 38938806 PMCID: PMC11200238 DOI: 10.1021/jacsau.4c00134] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/14/2024] [Revised: 04/15/2024] [Accepted: 04/15/2024] [Indexed: 06/29/2024]
Abstract
Reported herein are the bench stable (2E,4E)-diazohexa-2,4-dienals (diazodienals) and their unprecedented polycyclization with aldimine and arylamines enabled by Rh(II)/Brønsted acid relay catalysis. This scalable and atom-economical reaction provides direct access to the biologically important azatricyclo[6.2.1.04,11]undecane fused polycycles having six-contiguous stereocenters. Mechanistic studies revealed that polycyclization proceeds through an unusual triple-nucleophilic cascade initiated by aldimine attack on remote Rh-carbenoid, 6π-electrocyclization of aza-trienyl azomethine ylide, stereoselective aza-Michael addition via iminium activation, and inverse electron-demand intramolecular aza Diels-Alder reaction. The π-π secondary interactions play a crucial role in the preorganization of reactive intermediates for the pericyclic reactions and, hence, the overall efficiency of the polycyclization.
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Affiliation(s)
| | | | | | | | - Sreenivas Katukojvala
- Department of Chemistry, Indian
Institute of Science Education & Research
Bhopal, Bhopal, Madhya Pradesh 462066, India
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3
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Escolano M, Gaviña D, Alzuet-Piña G, Díaz-Oltra S, Sánchez-Roselló M, Pozo CD. Recent Strategies in the Nucleophilic Dearomatization of Pyridines, Quinolines, and Isoquinolines. Chem Rev 2024; 124:1122-1246. [PMID: 38166390 PMCID: PMC10902862 DOI: 10.1021/acs.chemrev.3c00625] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2024]
Abstract
Dearomatization reactions have become fundamental chemical transformations in organic synthesis since they allow for the generation of three-dimensional complexity from two-dimensional precursors, bridging arene feedstocks with alicyclic structures. When those processes are applied to pyridines, quinolines, and isoquinolines, partially or fully saturated nitrogen heterocycles are formed, which are among the most significant structural components of pharmaceuticals and natural products. The inherent challenge of those transformations lies in the low reactivity of heteroaromatic substrates, which makes the dearomatization process thermodynamically unfavorable. Usually, connecting the dearomatization event to the irreversible formation of a strong C-C, C-H, or C-heteroatom bond compensates the energy required to disrupt the aromaticity. This aromaticity breakup normally results in a 1,2- or 1,4-functionalization of the heterocycle. Moreover, the combination of these dearomatization processes with subsequent transformations in tandem or stepwise protocols allows for multiple heterocycle functionalizations, giving access to complex molecular skeletons. The aim of this review, which covers the period from 2016 to 2022, is to update the state of the art of nucleophilic dearomatizations of pyridines, quinolines, and isoquinolines, showing the extraordinary ability of the dearomative methodology in organic synthesis and indicating their limitations and future trends.
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Affiliation(s)
- Marcos Escolano
- Department of Organic Chemistry, Faculty of Pharmacy, University of Valencia, 46100 Burjassot, Valencia, Spain
| | - Daniel Gaviña
- Department of Organic Chemistry, Faculty of Pharmacy, University of Valencia, 46100 Burjassot, Valencia, Spain
| | - Gloria Alzuet-Piña
- Department of Inorganic Chemistry, Faculty of Pharmacy, University of Valencia, 46100 Burjassot, Valencia, Spain
| | - Santiago Díaz-Oltra
- Department of Organic Chemistry, Faculty of Pharmacy, University of Valencia, 46100 Burjassot, Valencia, Spain
| | - María Sánchez-Roselló
- Department of Organic Chemistry, Faculty of Pharmacy, University of Valencia, 46100 Burjassot, Valencia, Spain
| | - Carlos Del Pozo
- Department of Organic Chemistry, Faculty of Pharmacy, University of Valencia, 46100 Burjassot, Valencia, Spain
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4
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Baguli S, Sarkar S, Nath S, Mallick D, Mukherjee D. Divergent Synthesis of Chelating Aziridines and Cyclic(Alkyl)(Amino)Carbenes (CAACs) from Pyridyl-Tethered Robust Azomethine Ylides. Angew Chem Int Ed Engl 2023; 62:e202312858. [PMID: 37758683 DOI: 10.1002/anie.202312858] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2023] [Revised: 09/23/2023] [Accepted: 09/27/2023] [Indexed: 09/29/2023]
Abstract
Azomethine ylides are typically in situ generated synthons for making N-heterocycles through cycloaddition reactions. But an offbeat aspect about them is the isomeric nature of aldiminium-based azomethine ylides and (alkyl/aryl)(amino)carbenes, interconvertible by a formal 1,3-H+ transfer. Herein, two thermally robust azomethine ylides with a N-appended picolyl sidearm are isolated, which cyclize to py aziridines at 80 °C but unprecedentedly result N-pico CAAC-CuCl (CAAC=cyclic(alkyl)(amino)carbene) complexes when heated with CuCl at merely 60 °C. The pendant Npy , as revealed by computational analysis, plays a crucial role in this unusual 1,3-H+ shift using a deprotonation-protonation sequence, as well as in placing the CuCl at the carbenic site in tandem. The softer nature of Cu(I) is also critical. Chelating CAACs are rare and one with a N-tethered additional donor is priorly unknown. Both N-pico CAAC and py aziridine are bidentate chelators giving highly active cationic Rh(I) catalysts for hydrosilylating unactivated olefins by Et3 SiH. Notably, the py aziridine-Rh(I) is superior than the N-pico CAAC-Rh(I) catalyst.
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Affiliation(s)
- Sudip Baguli
- Department of Chemical Sciences, Indian Institute of Science Education and Research Kolkata Mohanpur, Nadia, 741246, India
| | - Subham Sarkar
- Department of Chemical Sciences, Indian Institute of Science Education and Research Kolkata Mohanpur, Nadia, 741246, India
- Department of Chemistry, Presidency University, 86/1 College Street, Kolkata, 700073, India
| | - Soumajit Nath
- Department of Chemical Sciences, Indian Institute of Science Education and Research Kolkata Mohanpur, Nadia, 741246, India
| | - Dibyendu Mallick
- Department of Chemistry, Presidency University, 86/1 College Street, Kolkata, 700073, India
| | - Debabrata Mukherjee
- Department of Chemical Sciences, Indian Institute of Science Education and Research Kolkata Mohanpur, Nadia, 741246, India
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5
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Luo Z, Wang C, Jiang H, Zeng W. Amine-Directed Regioselective Pyridyl Csp 2-H Aminovinylation. Org Lett 2023; 25:7020-7024. [PMID: 37712450 DOI: 10.1021/acs.orglett.3c02602] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/16/2023]
Abstract
A Rh-catalyzed amine-directed cross-coupling of 2-aminopyridines with 1-sulfonyl-triazoles has been developed. The method provides an efficient approach to access 5-aminovinylpyridines with wide functional group tolerance.
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Affiliation(s)
- Zhongfeng Luo
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510641, China
| | - Chengjie Wang
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510641, China
| | - Huanfeng Jiang
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510641, China
| | - Wei Zeng
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510641, China
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6
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Neumann K, Vujinovic A, Kamara S, Zwicky A, Baldauf S, Bode JW. Synthesis of multi-module low density lipoprotein receptor class A domains with acid labile cyanopyridiniumylides (CyPY) as aspartic acid masking groups. RSC Chem Biol 2023; 4:292-299. [PMID: 37034404 PMCID: PMC10074552 DOI: 10.1039/d2cb00234e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2022] [Accepted: 01/20/2023] [Indexed: 01/25/2023] Open
Abstract
Low-density lipoprotein receptor class A domains (LA modules) are common ligand-binding domains of transmembrane receptors of approximately 40 amino acids that are involved in several cellular processes including endocytosis of extracellular targets. Due to their wide-ranging function and distribution among different transmembrane receptors, LA modules are of high interest for therapeutic applications. However, the efficient chemical synthesis of LA modules and derivatives is hindered by complications, many arising from the high abundance of aspartic acid and consequent aspartimide formation. Here, we report a robust, efficient and general applicable chemical synthesis route for accessing such LA modules, demonstrated by the synthesis and folding of the LA3 and LA4 modules of the low-density lipoprotein receptor, as well as a heterodimeric LA3-LA4 constructed by chemical ligation. The synthesis of the aspartic acid-rich LA domain peptides is made possible by the use of cyanopyridiniumylides (CyPY) - reported here for the first time - as a masking group for carboxylic acids. We show that cyanopyridiniumylide masked aspartic acid monomers are readily available building blocks for solid phase peptide synthesis and successfully suppress aspartimide formation. Unlike previously reported ylide-based carboxylic acid protecting groups, CyPY protected aspartic acids are converted to the free carboxylic acid by acidic hydrolysis and are compatible with all common residues and protecting groups. The chemical synthesis of Cys- and Asp-rich LA modules enables new access to a class of difficult to provide, but promising protein domains.
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Affiliation(s)
- Kevin Neumann
- Laboratorium für Organische Chemie, Department of Chemistry and Applied Biosciences, ETH Zürich Zürich 8093 Switzerland
| | - Alex Vujinovic
- Laboratorium für Organische Chemie, Department of Chemistry and Applied Biosciences, ETH Zürich Zürich 8093 Switzerland
| | - Saidu Kamara
- Laboratorium für Organische Chemie, Department of Chemistry and Applied Biosciences, ETH Zürich Zürich 8093 Switzerland
| | - André Zwicky
- Laboratorium für Organische Chemie, Department of Chemistry and Applied Biosciences, ETH Zürich Zürich 8093 Switzerland
| | - Simon Baldauf
- Laboratorium für Organische Chemie, Department of Chemistry and Applied Biosciences, ETH Zürich Zürich 8093 Switzerland
| | - Jeffrey W Bode
- Laboratorium für Organische Chemie, Department of Chemistry and Applied Biosciences, ETH Zürich Zürich 8093 Switzerland
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7
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Wang ZH, You Y, Zhao JQ, Zhang YP, Yin JQ, Yuan WC. Recent Progress in Heterocycle Synthesis: Cyclization Reaction with Pyridinium and Quinolinium 1,4-Zwitterions. Molecules 2023; 28:molecules28073059. [PMID: 37049822 PMCID: PMC10095670 DOI: 10.3390/molecules28073059] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2023] [Revised: 03/21/2023] [Accepted: 03/27/2023] [Indexed: 04/14/2023] Open
Abstract
Heteroarene 1, n-zwitterions are powerful and versatile building blocks in the construction of heterocycles and have received increasing attention in recent years. In particular, pyridinium and quinolinium 1,4-zwitterions have been widely studied and used in a variety of cyclization reactions due to their air stability, ease of use, and high efficiency. Sulfur- and nitrogen-based pyridinium and quinolinium 1,4-zwitterions, types of emerging heteroatom-containing synthons, have attracted much attention from chemists. These 1,4-zwitterions, which contain multiple reaction sites, have been successfully used in the synthesis of three- to eight-membered cyclic compounds over the last decade. In this review, we present the exciting progress made in the field of cyclization reactions of sulfur- and nitrogen-based pyridinium and quinolinium 1,4-zwitterions. Moreover, the mechanistic insights, the transition states, some synthetic applications, and the challenges and opportunities are also discussed. We hope to provide an overview for synthetic chemists who are interested in the heterocycle synthesis from cyclization reaction with pyridinium and quinolinium 1,4-zwitterions pyridinium and quinolinium 1,4-zwitterions.
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Affiliation(s)
- Zhen-Hua Wang
- Innovation Research Center of Chiral Drugs, Institute for Advanced Study, Chengdu University, Chengdu 610106, China
| | - Yong You
- Innovation Research Center of Chiral Drugs, Institute for Advanced Study, Chengdu University, Chengdu 610106, China
| | - Jian-Qiang Zhao
- Innovation Research Center of Chiral Drugs, Institute for Advanced Study, Chengdu University, Chengdu 610106, China
| | - Yan-Ping Zhang
- Innovation Research Center of Chiral Drugs, Institute for Advanced Study, Chengdu University, Chengdu 610106, China
| | - Jun-Qing Yin
- Innovation Research Center of Chiral Drugs, Institute for Advanced Study, Chengdu University, Chengdu 610106, China
| | - Wei-Cheng Yuan
- Innovation Research Center of Chiral Drugs, Institute for Advanced Study, Chengdu University, Chengdu 610106, China
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8
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Azomethine Ylides-Versatile Synthons for Pyrrolidinyl-Heterocyclic Compounds. Molecules 2023; 28:molecules28020668. [PMID: 36677727 PMCID: PMC9866015 DOI: 10.3390/molecules28020668] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2022] [Revised: 01/03/2023] [Accepted: 01/04/2023] [Indexed: 01/11/2023] Open
Abstract
Azomethine ylides are nitrogen-based three-atom components commonly used in [3+2]-cycloaddition reactions with various unsaturated 2π-electron components. These reactions are highly regio- and stereoselective and have attracted the attention of organic chemists with respect to the construction of diverse heterocycles potentially bearing four new contiguous stereogenic centers. This review article complies the most important [3+2]-cycloaddition reactions of azomethine ylides with various olefinic, unsaturated 2π-electron components (acyclic, alicyclic, heterocyclic, and exocyclic ones) reported over the past two decades.
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9
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Nandi S, Jamatia R, Sarkar R, Sarkar FK, Alam S, Pal AK. One‐Pot Multicomponent Reaction: A Highly Versatile Strategy for the Construction of Valuable Nitrogen‐Containing Heterocycles. ChemistrySelect 2022. [DOI: 10.1002/slct.202201901] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Sibaji Nandi
- Department of Chemistry North-Eastern Hill University Shillong Meghalaya 793022 India
| | - Ramen Jamatia
- Department of Chemistry Rajiv Gandhi University, Rono Hills, Doimukh Arunachal Pradesh 791112 India
| | - Rajib Sarkar
- Department of Chemistry North-Eastern Hill University Shillong Meghalaya 793022 India
| | - Fillip Kumar Sarkar
- Department of Chemistry North-Eastern Hill University Shillong Meghalaya 793022 India
| | - Safiul Alam
- Department of Chemistry Aliah University, IIA/27, New Town Kolkata 700160 India
| | - Amarta Kumar Pal
- Department of Chemistry North-Eastern Hill University Shillong Meghalaya 793022 India
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10
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Ji J, Jiang L, Wang Z, Bin Z, You J, Yang Y. Copper-Catalyzed Oxidative C-H Annulation of Quinolines with Dichloroethane toward Benzoquinoliziniums Using an In Situ Activation Strategy. Org Lett 2022; 24:6256-6260. [PMID: 35993528 DOI: 10.1021/acs.orglett.2c02342] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Described herein is a copper-catalyzed oxidative C-H annulation of quinolines with 1,2-chloroethane (DCE), providing a concise synthetic approach to benzoquinoliziniums. In this protocol, DCE not only serves as a solvent and an in situ activation agent of quinoline C2-H but also works as vinyl equivalents to constitute the six-membered azonia ring. Furthermore, the resultant benzoquinolizinium library exhibits good properties of binding to DNA and low cytotoxicity.
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Affiliation(s)
- Jinwen Ji
- Key Laboratory of Green Chemistry and Technology of Ministry of Education, College of Chemistry, Sichuan University, 29 Wangjiang Road, Chengdu 610064, People's Republic of China
| | - Linfeng Jiang
- Key Laboratory of Green Chemistry and Technology of Ministry of Education, College of Chemistry, Sichuan University, 29 Wangjiang Road, Chengdu 610064, People's Republic of China
| | - Zhishuo Wang
- Key Laboratory of Green Chemistry and Technology of Ministry of Education, College of Chemistry, Sichuan University, 29 Wangjiang Road, Chengdu 610064, People's Republic of China
| | - Zhengyang Bin
- Key Laboratory of Green Chemistry and Technology of Ministry of Education, College of Chemistry, Sichuan University, 29 Wangjiang Road, Chengdu 610064, People's Republic of China
| | - Jingsong You
- Key Laboratory of Green Chemistry and Technology of Ministry of Education, College of Chemistry, Sichuan University, 29 Wangjiang Road, Chengdu 610064, People's Republic of China
| | - Yudong Yang
- Key Laboratory of Green Chemistry and Technology of Ministry of Education, College of Chemistry, Sichuan University, 29 Wangjiang Road, Chengdu 610064, People's Republic of China
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11
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Akter M, Rupa K, Anbarasan P. 1,2,3-Triazole and Its Analogues: New Surrogates for Diazo Compounds. Chem Rev 2022; 122:13108-13205. [DOI: 10.1021/acs.chemrev.1c00991] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Monalisa Akter
- Department of Chemistry, Indian Institute of Technology Madras, Chennai 600 036, India
| | - Kavuri Rupa
- Department of Chemistry, Indian Institute of Technology Madras, Chennai 600 036, India
| | - Pazhamalai Anbarasan
- Department of Chemistry, Indian Institute of Technology Madras, Chennai 600 036, India
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12
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Lee JY, Varshnaya RK, Yoo EJ. Synthesis of Chiral Diazocine Derivatives via a Copper-Catalyzed Dearomative [5+3] Cycloaddition. Org Lett 2022; 24:3731-3735. [PMID: 35549493 DOI: 10.1021/acs.orglett.2c01389] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Copper-catalyzed [5+3] cycloaddition of N-aromatic zwitterions and enol diazoacetates produced enantio-enriched diazocine derivatives. A sterically encumbered BOX ligand and NaBArF additive played significant roles in driving the overall catalytic process via the unfavorable dearomatization to construct the desired eight-membered heterocyclic compounds. The induced stereoselectivity was preserved after further modifications of the skeleton, which demonstrates the potential applications of the developed asymmetric catalysis.
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Affiliation(s)
- Ju Young Lee
- Department of Applied Chemistry, Kyung Hee University, Yongin 17104, Republic of Korea
| | - Rohit Kumar Varshnaya
- Department of Applied Chemistry, Kyung Hee University, Yongin 17104, Republic of Korea
| | - Eun Jeong Yoo
- Department of Applied Chemistry, Kyung Hee University, Yongin 17104, Republic of Korea
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13
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Zhang MM, Qu BL, Shi B, Xiao WJ, Lu LQ. High-order dipolar annulations with metal-containing reactive dipoles. Chem Soc Rev 2022; 51:4146-4174. [PMID: 35521739 DOI: 10.1039/d1cs00897h] [Citation(s) in RCA: 30] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Medium-sized heterocycles are widespread among a spectrum of structurally intriguing and biologically significant natural products and synthetic pharmaceuticals. Metal-catalyzed high-order dipolar annulations resembling reactions of metal-containing reactive dipoles with dipolarophiles constitute a highly efficient and flexible strategy for constructing medium-sized heterocycles. Mechanistically, these annulation reactions usually proceeding through stepwise pathways are different from the classic high-order pericyclic reactions that follow the Woodward-Hoffman rules. More significantly, asymmetric high-order dipolar annulations using chiral organometallic catalysts have been proven successful for constructing chiral medium-sized heterocycles with high enantio- and diastereoselectivity. This review highlights the impressive advances in this area and is focused on the reactivity, scope, mechanisms and applications of high-order dipolar annulation reactions.
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Affiliation(s)
- Mao-Mao Zhang
- CCNU-uOttawa Joint Research Centre, Key Laboratory of Pesticide and Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, 152 Luoyu Road, Wuhan 430079, China.
| | - Bao-Le Qu
- CCNU-uOttawa Joint Research Centre, Key Laboratory of Pesticide and Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, 152 Luoyu Road, Wuhan 430079, China.
| | - Bin Shi
- CCNU-uOttawa Joint Research Centre, Key Laboratory of Pesticide and Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, 152 Luoyu Road, Wuhan 430079, China.
| | - Wen-Jing Xiao
- CCNU-uOttawa Joint Research Centre, Key Laboratory of Pesticide and Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, 152 Luoyu Road, Wuhan 430079, China. .,State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, 345 Lingling Road, Shanghai 200032, China
| | - Liang-Qiu Lu
- CCNU-uOttawa Joint Research Centre, Key Laboratory of Pesticide and Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, 152 Luoyu Road, Wuhan 430079, China. .,State Key Laboratory for Oxo Synthesis and Selective Oxidation, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, China.,School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, China
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14
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Hill HM, Tucker ZD, Rodriguez KX, Wendt KA, Ashfeld BL. Generation of Functionalized Azepinone Derivatives via a (4 + 3)-Cycloaddition of Vinyl Ketenes and α-Imino Carbenes Derived from N-Sulfonyl-triazoles. J Org Chem 2022; 87:3825-3833. [PMID: 35188763 DOI: 10.1021/acs.joc.1c03002] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
An intermolecular RhII-catalyzed, formal (4 + 3)-cycloaddition between vinyl ketenes and N-sulfonyl-1,2,3-triazoles for the construction of azepinone products is described. Employing vinyl ketenes as a 1,4-dipolar surrogate, instead of the more commonly used dienyl moieties, allows for the intermolecular and selective formation of azepinone products over a potential (3 + 2)-cycloadduct under mild reaction conditions allows for the generation of azepinone products in up to 98% yield.
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Affiliation(s)
- Harrison M Hill
- Department of Chemistry and Biochemistry, University of Notre Dame, Notre Dame, Indiana 46556, United States
| | - Zachary D Tucker
- Department of Chemistry and Biochemistry, University of Notre Dame, Notre Dame, Indiana 46556, United States
| | - Kevin X Rodriguez
- Department of Chemistry and Biochemistry, University of Notre Dame, Notre Dame, Indiana 46556, United States
| | - Katelyn A Wendt
- Department of Chemistry and Biochemistry, University of Notre Dame, Notre Dame, Indiana 46556, United States
| | - Brandon L Ashfeld
- Department of Chemistry and Biochemistry, University of Notre Dame, Notre Dame, Indiana 46556, United States
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15
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Lee JY, Samala S, Kim J, Yoo EJ. Contractions of 1,4-Diazepines to Pyrroles Triggered by Valence Tautomerization: A One-Pot Approach and Mechanism. Org Lett 2021; 23:9006-9011. [PMID: 34752111 DOI: 10.1021/acs.orglett.1c03549] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Herein, we describe the valence tautomerizations of fused 1,4-diazepines, which are reconstructed to give pyrrole derivatives and HCN gas. Several factors that influence the equilibrium between each valence tautomer of an 8π-electron diazepine skeleton are demonstrated. On the basis of these mechanistic studies, a cascade strategy for the construction of diazepines followed by ring contraction is developed to afford aryl- or alkyl-substituted pyrrolo[1,2-a]quinolines that are otherwise challenging to fabricate. In addition, further transformations of the obtained products highlight the advantages of the developed methodology.
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Affiliation(s)
- Ju Young Lee
- Department of Applied Chemistry, Kyung Hee University, Yongin 17104, Korea
| | - Srinivas Samala
- Department of Chemistry, Kangwon National University, Chuncheon 24341, Korea
| | - Jiyoung Kim
- Department of Applied Chemistry, Kyung Hee University, Yongin 17104, Korea
| | - Eun Jeong Yoo
- Department of Applied Chemistry, Kyung Hee University, Yongin 17104, Korea
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16
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Luo H, Li Y, Du L, Xin X, Wang T, Han J, Tian Y, Li B. Divergent Synthesis of Highly Substituted Pyridines and Benzenes from Dienals, Alkynes, and Sulfonyl Azides. Org Lett 2021; 23:7883-7887. [PMID: 34590870 DOI: 10.1021/acs.orglett.1c02900] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Divergent synthesis is extremely important for the highly efficient preparation of structurally diverse target molecules. Herein, we describe a multicomponent cascade reaction, which allows access to highly substituted pyridines and benzenes by combining four individual steps in a one-pot manner from the same set of readily available starting materials. The azepine intermediates were first used as the precursors for 6π-electrocyclization to construct highly substituted pyridines and benzenes in a tunable manner.
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Affiliation(s)
- Han Luo
- School of Chemistry and Chemical Engineering, Chongqing University, 174 Shazheng Street, Chongqing, 400044, China
| | - You Li
- School of Chemistry and Chemical Engineering, Chongqing University, 174 Shazheng Street, Chongqing, 400044, China
| | - Luan Du
- School of Chemistry and Chemical Engineering, Chongqing University, 174 Shazheng Street, Chongqing, 400044, China
| | - Xiaolan Xin
- School of Chemistry and Chemical Engineering, Chongqing University, 174 Shazheng Street, Chongqing, 400044, China
| | - Tao Wang
- School of Chemistry and Chemical Engineering, Chongqing University, 174 Shazheng Street, Chongqing, 400044, China
| | - Jingpeng Han
- School of Chemistry and Chemical Engineering, Chongqing University, 174 Shazheng Street, Chongqing, 400044, China
| | - Yi Tian
- School of Chemistry and Chemical Engineering, Chongqing University, 174 Shazheng Street, Chongqing, 400044, China
| | - Baosheng Li
- School of Chemistry and Chemical Engineering, Chongqing University, 174 Shazheng Street, Chongqing, 400044, China
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17
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Duan S, Xiang Q, Deng C, Jie Y, Luo H, Xu ZF. Synthesis of phthalan derivatives via a formal intramolecular 1,3-insertion of rhodium(II) azavinyl carbenes into O Si bond. Tetrahedron Lett 2021. [DOI: 10.1016/j.tetlet.2021.153329] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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18
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Yuan H, Hong K, Liu X, Qian Y, Xu X, Hu W. Enantioselective assembly of 3,3-disubstituted succinimides via three-component reaction of vinyl diazosuccinimides with alcohols and imines. Chem Commun (Camb) 2021; 57:8043-8046. [PMID: 34291251 DOI: 10.1039/d1cc02876f] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
An enantioselective three-component reaction of vinyl diazosuccinimdes with alcohols and imines has been realized by a cooperative catalysis of Rh2(OAc)4 and a chiral phosphoric acid, leading to chiral 3,3-disubstituted succinimides in good to high yields with high to excellent enantioselectivity. The generated product with an alkenyl species could be converted to the chiral tricyclic structure under mild conditions.
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Affiliation(s)
- Haoxuan Yuan
- Guangdong Key Laboratory of Chiral Molecule and Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, Guangdong 510006, China.
| | - Kemiao Hong
- Guangdong Key Laboratory of Chiral Molecule and Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, Guangdong 510006, China.
| | - Xiangrong Liu
- Guangdong Key Laboratory of Chiral Molecule and Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, Guangdong 510006, China.
| | - Yu Qian
- Guangdong Key Laboratory of Chiral Molecule and Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, Guangdong 510006, China.
| | - Xinfang Xu
- Guangdong Key Laboratory of Chiral Molecule and Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, Guangdong 510006, China.
| | - Wenhao Hu
- Guangdong Key Laboratory of Chiral Molecule and Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, Guangdong 510006, China.
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19
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Kim J, Yoo EJ. Catalytic Ring Expansion of Activated Heteroarenes Enabled by Regioselective Dearomatization. Org Lett 2021; 23:4256-4260. [PMID: 34029104 DOI: 10.1021/acs.orglett.1c01173] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Catalytic ring expansion of activated heteroarenes through 1,4-dearomative addition of diazoacetates was established for the construction of various fused azepines by an elaborate control of the reaction kinetics at each step. The use of a silver catalyst was essential to drive the overall reaction for generating the desired seven-membered azepines. Because of the excellent substrate scope and selectivity, the developed methodology presents an innovative approach for the synthesis of multifused azepines, which are biologically relevant molecules.
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Affiliation(s)
- Jiyoung Kim
- Department of Applied Chemistry, Kyung Hee University, Yongin 17104, Republic of Korea
| | - Eun Jeong Yoo
- Department of Applied Chemistry, Kyung Hee University, Yongin 17104, Republic of Korea
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20
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Kim DK, Son J, Jung I, Heo N, Han SH, Kim D, Lee PH. Sequential
N
‐Arylation and Intramolecular Imine Addition Reaction of Indoloazomethine Ylides with Arynes for the Synthesis of Thiadiazepine Derivatives. Adv Synth Catal 2021. [DOI: 10.1002/adsc.202001310] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Dae Kyum Kim
- Department of Chemistry Kangwon National University Chuncheon 24341 Republic of Korea
| | - Jeong‐Yu Son
- Department of Chemistry Kangwon National University Chuncheon 24341 Republic of Korea
| | - Ilyong Jung
- Department of Chemistry Kangwon National University Chuncheon 24341 Republic of Korea
| | - Namrim Heo
- Department of Chemistry Kangwon National University Chuncheon 24341 Republic of Korea
| | - Sang Hoon Han
- Department of Chemistry Kangwon National University Chuncheon 24341 Republic of Korea
| | - Dongwook Kim
- Department of Chemistry Korea Advanced Institute of Science and Technology (KAIST) Daejeon 3441 Republic of Korea
- Center for Catalytic Hydrocarbon Functionalizations Institute for Basic Science (IBS) Daejeon 34141 Republic of Korea
| | - Phil Ho Lee
- The Korean Academy of Science and Technology Seongnam 13630 Republic of Korea
- Department of Chemistry Kangwon National University Chuncheon 24341 Republic of Korea
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21
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Zhang C, Hong K, Pei C, Zhou S, Hu W, Hashmi ASK, Xu X. Gold(I)-catalyzed intramolecular cyclization/intermolecular cycloaddition cascade as a fast track to polycarbocycles and mechanistic insights. Nat Commun 2021; 12:1182. [PMID: 33608521 PMCID: PMC7896061 DOI: 10.1038/s41467-021-21335-9] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2020] [Accepted: 01/15/2021] [Indexed: 12/28/2022] Open
Abstract
Metal carbene is an active synthetic intermediate, which has shown versatile applications in synthetic chemistry. Although a variety of catalytic methods have been disclosed for the generation of carbene species from different precursors, there is an increasing demand for the development of efficient and practical approaches for the in-situ formation of metal carbene intermediates with structural diversity and unrevealed reactivity. Herein we report a gold-catalyzed cascade protocol for the assembly of polycarbocyclic frameworks in high yields under mild reaction conditions. Mechanistic studies indicate that the unique β-aryl gold-carbene species, generated via gold-promoted 6-endo-dig diazo-yne cyclization, is the key intermediate in this reaction, followed by a [4 + 2]-cycloaddition with external alkenes. In comparison to the well-documented metal carbene cycloadditions, this carbene intermediate serves as a 4-C synthon in a cycloaddition reaction. A variety of elusive π-conjugated polycyclic hydrocarbons (CPHs) with multiple substituents are readily accessible from the initially generated products by a mild oxidation procedure.
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Affiliation(s)
- Cheng Zhang
- Guangdong Provincial Key Laboratory of Chiral Molecule and Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, 510006, China
- Organisch-Chemisches Institut, Heidelberg University, 69120, Heidelberg, Germany
| | - Kemiao Hong
- Guangdong Provincial Key Laboratory of Chiral Molecule and Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, 510006, China
| | - Chao Pei
- Guangdong Provincial Key Laboratory of Chiral Molecule and Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, 510006, China
| | - Su Zhou
- Guangdong Provincial Key Laboratory of Chiral Molecule and Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, 510006, China
| | - Wenhao Hu
- Guangdong Provincial Key Laboratory of Chiral Molecule and Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, 510006, China
| | - A Stephen K Hashmi
- Organisch-Chemisches Institut, Heidelberg University, 69120, Heidelberg, Germany.
| | - Xinfang Xu
- Guangdong Provincial Key Laboratory of Chiral Molecule and Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, 510006, China.
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22
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Mirzaei A, Turczel G, Nagyházi M, Farkas V, Balla Á, Dang Vu H, Tuba R. Cyclative MCRs of Azines and Azinium Salts. European J Org Chem 2021. [DOI: 10.1002/ejoc.202001048] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Affiliation(s)
- Anvar Mirzaei
- Research Centre for Natural Sciences Institute of Materials and Environmental Chemistry Magyar tudósok körútja 2, P.O. Box 286 1519 Budapest Hungary
- Department of Chemistry Faculty of Science Islamic Azad University Sanandaj Branch Iran
| | - Gábor Turczel
- Research Centre for Natural Sciences Institute of Materials and Environmental Chemistry Magyar tudósok körútja 2, P.O. Box 286 1519 Budapest Hungary
| | - Márton Nagyházi
- Research Centre for Natural Sciences Institute of Materials and Environmental Chemistry Magyar tudósok körútja 2, P.O. Box 286 1519 Budapest Hungary
| | - Vajk Farkas
- Research Centre for Natural Sciences Institute of Materials and Environmental Chemistry Magyar tudósok körútja 2, P.O. Box 286 1519 Budapest Hungary
| | - Áron Balla
- Research Centre for Natural Sciences Institute of Materials and Environmental Chemistry Magyar tudósok körútja 2, P.O. Box 286 1519 Budapest Hungary
| | - Hai Dang Vu
- Research Centre for Natural Sciences Institute of Materials and Environmental Chemistry Magyar tudósok körútja 2, P.O. Box 286 1519 Budapest Hungary
| | - Robert Tuba
- Research Centre for Natural Sciences Institute of Materials and Environmental Chemistry Magyar tudósok körútja 2, P.O. Box 286 1519 Budapest Hungary
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23
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Khan I, Ibrar A, Zaib S. Alkynoates as Versatile and Powerful Chemical Tools for the Rapid Assembly of Diverse Heterocycles under Transition-Metal Catalysis: Recent Developments and Challenges. Top Curr Chem (Cham) 2021; 379:3. [PMID: 33398642 DOI: 10.1007/s41061-020-00316-4] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2020] [Accepted: 11/16/2020] [Indexed: 12/15/2022]
Abstract
Heterocycles, heteroaromatics and spirocyclic entities are ubiquitous components of a wide plethora of synthetic drugs, biologically active natural products, marketed pharmaceuticals and agrochemical targets. Recognizing their high proportion in drugs and rich pharmacological potential, these invaluable structural motifs have garnered significant interest, thus enabling the development of efficient catalytic methodologies providing access to architecturally complex and diverse molecules with high atom-economy and low cost. These chemical processes not only allow the formation of diverse heterocycles but also utilize a range of flexible and easily accessible building units in a single operation to discover diversity-oriented synthetic approaches. Alkynoates are significantly important, diverse and powerful building blocks in organic chemistry due to their unique and inherent properties such as the electronic bias on carbon-carbon triple bonds posed by electron-withdrawing groups or the metallic coordination site provided by carbonyl groups. The present review highlights the comprehensive picture of the utility of alkynoates (2007-2019) for the synthesis of various heterocycles (> 50 types) using transition-metal catalysts (Ru, Rh, Pd, Ir, Ag, Au, Pt, Cu, Mn, Fe) in various forms. The valuable function of versatile alkynoates (bearing multifunctional groups) as simple and useful starting materials is explored, thus cyclizing with an array of coupling partners to deliver a broad range of oxygen-, nitrogen-, sulfur-containing heterocycles alongside fused-, and spiro-heterocyclic compounds. In addition, these examples will also focus the scope and reaction limitations, as well as mechanistic investigations into the synthesis of these heterocycles. The biological significance will also be discussed, citing relevant examples of drug molecules highlighting each class of heterocycles. This review summarizes the recent developments in the synthetic methods for the synthesis of various heterocycles using alkynoates as readily available starting materials under transition-metal catalysis.
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Affiliation(s)
- Imtiaz Khan
- Department of Chemistry, School of Natural Sciences, The University of Manchester, Oxford Road, Manchester, M13 9PL, UK.
- Manchester Institute of Biotechnology, The University of Manchester, 131 Princess Street, Manchester, M1 7DN, UK.
| | - Aliya Ibrar
- Department of Chemistry, Faculty of Natural Sciences, The University of Haripur, Haripur, KPK-22620, Pakistan
| | - Sumera Zaib
- Department of Biochemistry, Faculty of Life Sciences, University of Central Punjab, Lahore, 54590, Pakistan
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24
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Zhang G, Yu A, Lei Y, Meng X, Zhang L. Synthesis of novel pyridinium 1,5-zwitterions and their reactivity with isatin-based α-(trifluoromethyl)imines: a sulfur-controlled domino reaction. Org Chem Front 2021. [DOI: 10.1039/d1qo00312g] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A new stable pyridinium 1,5-zwitterion, generated from azadiene and 4-dimethylaminopyridine, was isolated. The reaction of pyridinium 1,5-zwitterion and isatin-derived α-(trifluoromethyl)imine was regulated by temperature.
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Affiliation(s)
- Gaoting Zhang
- Tianjin Key Laboratory of Organic Solar Cells and Photochemical Conversion
- School of Chemistry & Chemical Engineering
- Tianjin University of Technology
- Tianjin 300384
- P. R. China
| | - Aimin Yu
- Tianjin Key Laboratory of Organic Solar Cells and Photochemical Conversion
- School of Chemistry & Chemical Engineering
- Tianjin University of Technology
- Tianjin 300384
- P. R. China
| | - Yingjie Lei
- Tianjin Key Laboratory of Organic Solar Cells and Photochemical Conversion
- School of Chemistry & Chemical Engineering
- Tianjin University of Technology
- Tianjin 300384
- P. R. China
| | - Xiangtai Meng
- Tianjin Key Laboratory of Organic Solar Cells and Photochemical Conversion
- School of Chemistry & Chemical Engineering
- Tianjin University of Technology
- Tianjin 300384
- P. R. China
| | - Lei Zhang
- Tianjin Engineering Technology Center of Chemical Wastewater Source Reduction and Recycling
- School of Science Tianjin Chengjian University
- Tianjin 300384
- P.R. China
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25
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Koronatov AN, Afanaseva KK, Sakharov PA, Rostovskii NV, Khlebnikov AF, Novikov MS. Rh(ii)-Catalyzed denitrogenative 1-sulfonyl-1,2,3-triazole-1-alkyl-1,2,3-triazole cross-coupling as a route to 3-sulfonamido-1H-pyrroles and 1,2,3-triazol-3-ium ylides. Org Chem Front 2021. [DOI: 10.1039/d0qo01571g] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
The reaction of 1-alkyl-1H-1,2,3-triazoles with rhodium(ii) azavinyl carbenes, generated from 1-sulfonyl-1H-1,2,3-triazoles, was utilized to prepare 3-sulfonamido-1H-pyrroles and 1,2,3-triazol-3-ium ylides in good yields.
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Affiliation(s)
| | | | - Pavel A. Sakharov
- St Petersburg State University
- Institute of Chemistry
- St Petersburg
- Russia
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26
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Wang Z, Jiang L, Ji J, Zhou F, Lan J, You J. Construction of Cationic Azahelicenes: Regioselective Three‐Component Annulation Using In Situ Activation Strategy. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202010051] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Zhishuo Wang
- Key Laboratory of Green Chemistry and Technology of Ministry of Education College of Chemistry Sichuan University 29 Wangjiang Road Chengdu 610064 People's Republic of China
| | - Linfeng Jiang
- Key Laboratory of Green Chemistry and Technology of Ministry of Education College of Chemistry Sichuan University 29 Wangjiang Road Chengdu 610064 People's Republic of China
| | - Jinwen Ji
- Key Laboratory of Green Chemistry and Technology of Ministry of Education College of Chemistry Sichuan University 29 Wangjiang Road Chengdu 610064 People's Republic of China
| | - Fulin Zhou
- Key Laboratory of Green Chemistry and Technology of Ministry of Education College of Chemistry Sichuan University 29 Wangjiang Road Chengdu 610064 People's Republic of China
| | - Jingbo Lan
- Key Laboratory of Green Chemistry and Technology of Ministry of Education College of Chemistry Sichuan University 29 Wangjiang Road Chengdu 610064 People's Republic of China
| | - Jingsong You
- Key Laboratory of Green Chemistry and Technology of Ministry of Education College of Chemistry Sichuan University 29 Wangjiang Road Chengdu 610064 People's Republic of China
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27
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Liu J, Xu G, Tang S, Chen Q, Sun J. Site-Selective Functionalization of 7-Azaindoles via Carbene Transfer and Isolation of N-Aromatic Zwitterions. Org Lett 2020; 22:9376-9380. [DOI: 10.1021/acs.orglett.0c03653] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Junheng Liu
- Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology, School of Petrochemical Engineering, Changzhou University, Changzhou 213164, China
| | - Guangyang Xu
- Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology, School of Petrochemical Engineering, Changzhou University, Changzhou 213164, China
| | - Shengbiao Tang
- Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology, School of Petrochemical Engineering, Changzhou University, Changzhou 213164, China
| | - Qun Chen
- Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology, School of Petrochemical Engineering, Changzhou University, Changzhou 213164, China
| | - Jiangtao Sun
- Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology, School of Petrochemical Engineering, Changzhou University, Changzhou 213164, China
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28
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Xu G, Shao Y, Tang S, Chen Q, Sun J. Dearomative Migratory Rearrangement of 2-Oxypyridines Enabled by α-Imino Rhodium Carbene. Org Lett 2020; 22:9303-9307. [DOI: 10.1021/acs.orglett.0c03533] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Guangyang Xu
- Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology, School of Petrochemical Engineering, Changzhou University, Changzhou 213164, China
| | - Ying Shao
- Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology, School of Petrochemical Engineering, Changzhou University, Changzhou 213164, China
| | - Shengbiao Tang
- Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology, School of Petrochemical Engineering, Changzhou University, Changzhou 213164, China
| | - Qun Chen
- Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology, School of Petrochemical Engineering, Changzhou University, Changzhou 213164, China
| | - Jiangtao Sun
- Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology, School of Petrochemical Engineering, Changzhou University, Changzhou 213164, China
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29
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Guarnieri-Ibáñez A, de Aguirre A, Besnard C, Poblador-Bahamonde AI, Lacour J. Regiodivergent synthesis of pyrazino-indolines vs. triazocines via α-imino carbenes addition to imidazolidines. Chem Sci 2020; 12:1479-1485. [PMID: 34163911 PMCID: PMC8179195 DOI: 10.1039/d0sc05725h] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023] Open
Abstract
Hexahydropyrazinoindoles were prepared in a single step from N-sulfonyl triazoles and imidazolidines. Under dirhodium catalysis, α-imino carbenes were generated and formed nitrogen ylide intermediates that, after subsequent aminal opening, afforded the pyrazinoindoles predominantly via formal [1,2]-Stevens and tandem Friedel–Crafts cyclizations. Of mechanistic importance, a regiodivergent reactivity was engineered through the use of a specific unsymmetrically substituted imidazolidine that promoted the exclusive formation of 8-membered ring 1,3,6-triazocines. Based on DFT calculations, an original Curtin–Hammett-like situation was demonstrated for the mechanism. Further derivatizations led to functionalized tetrahydropyrazinoindoles in high yields. Hexahydropyrazinoindoles are prepared in a single step from N-sulfonyl triazoles and imidazolidines. Of mechanistic importance, a regiodivergent reactivity can be engineered towards the exclusive formation of 8-membered ring 1,3,6-triazocines.![]()
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Affiliation(s)
- Alejandro Guarnieri-Ibáñez
- Department of Organic Chemistry, University of Geneva Quai Ernest Ansermet 30, 1211 Geneva 4 Switzerland
| | - Adiran de Aguirre
- Department of Organic Chemistry, University of Geneva Quai Ernest Ansermet 30, 1211 Geneva 4 Switzerland
| | - Céline Besnard
- Laboratory of Crystallography, University of Geneva Quai Ernest Ansermet 24, 1211 Geneva 4 Switzerland
| | | | - Jérôme Lacour
- Department of Organic Chemistry, University of Geneva Quai Ernest Ansermet 30, 1211 Geneva 4 Switzerland
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30
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Ouyang W, Rao J, Li Y, Liu X, Huo Y, Chen Q, Li X. Recent Achievements in the Rhodium‐Catalyzed Concise Construction of Medium N‐Heterocycles, Azepines and Azocines. Adv Synth Catal 2020. [DOI: 10.1002/adsc.202001040] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Affiliation(s)
- Wensen Ouyang
- School of Chemical Engineering and Light Industry Guangdong University of Technology No. 100 Waihuan Xi Road Guangzhou Higher Education Mega Center Guangzhou 510006 People's Republic of China
| | - Jianhang Rao
- School of Chemical Engineering and Light Industry Guangdong University of Technology No. 100 Waihuan Xi Road Guangzhou Higher Education Mega Center Guangzhou 510006 People's Republic of China
| | - Yibiao Li
- School of Biotechnology and Health Science Wuyi University Jiangmen 529020 People's Republic of China
| | - Xiaohang Liu
- BASF Advanced Chemicals Co., Ltd. No. 300, Jiangxinsha Road 200137 Shanghai People's Republic of China
| | - Yanping Huo
- School of Chemical Engineering and Light Industry Guangdong University of Technology No. 100 Waihuan Xi Road Guangzhou Higher Education Mega Center Guangzhou 510006 People's Republic of China
| | - Qian Chen
- School of Chemical Engineering and Light Industry Guangdong University of Technology No. 100 Waihuan Xi Road Guangzhou Higher Education Mega Center Guangzhou 510006 People's Republic of China
| | - Xianwei Li
- School of Chemical Engineering and Light Industry Guangdong University of Technology No. 100 Waihuan Xi Road Guangzhou Higher Education Mega Center Guangzhou 510006 People's Republic of China
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31
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Wang Z, Jiang L, Ji J, Zhou F, Lan J, You J. Construction of Cationic Azahelicenes: Regioselective Three‐Component Annulation Using In Situ Activation Strategy. Angew Chem Int Ed Engl 2020; 59:23532-23536. [DOI: 10.1002/anie.202010051] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2020] [Revised: 08/30/2020] [Indexed: 01/02/2023]
Affiliation(s)
- Zhishuo Wang
- Key Laboratory of Green Chemistry and Technology of Ministry of Education College of Chemistry Sichuan University 29 Wangjiang Road Chengdu 610064 People's Republic of China
| | - Linfeng Jiang
- Key Laboratory of Green Chemistry and Technology of Ministry of Education College of Chemistry Sichuan University 29 Wangjiang Road Chengdu 610064 People's Republic of China
| | - Jinwen Ji
- Key Laboratory of Green Chemistry and Technology of Ministry of Education College of Chemistry Sichuan University 29 Wangjiang Road Chengdu 610064 People's Republic of China
| | - Fulin Zhou
- Key Laboratory of Green Chemistry and Technology of Ministry of Education College of Chemistry Sichuan University 29 Wangjiang Road Chengdu 610064 People's Republic of China
| | - Jingbo Lan
- Key Laboratory of Green Chemistry and Technology of Ministry of Education College of Chemistry Sichuan University 29 Wangjiang Road Chengdu 610064 People's Republic of China
| | - Jingsong You
- Key Laboratory of Green Chemistry and Technology of Ministry of Education College of Chemistry Sichuan University 29 Wangjiang Road Chengdu 610064 People's Republic of China
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32
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Trost BM, Zuo Z, Schultz JE. Transition-Metal-Catalyzed Cycloaddition Reactions to Access Seven-Membered Rings. Chemistry 2020; 26:15354-15377. [PMID: 32705722 DOI: 10.1002/chem.202002713] [Citation(s) in RCA: 46] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2020] [Revised: 07/12/2020] [Indexed: 02/06/2023]
Abstract
The efficient and selective synthesis of functionalized seven-membered rings remains an important pursuit within synthetic organic chemistry, as this motif appears in numerous drug-like molecules and natural products. Use of cycloaddition reactions remains an attractive approach for their construction within the perspective of atom and step economy. Additionally, the ability to combine multiple components in a single reaction has the potential to allow for efficient combinatorial strategies of diversity-oriented synthesis. The inherent entropic penalty associated with achieving these transformations has impressively been overcome with development of catalysis, whereby the reaction components can be pre-organized through activation by transition-metal-catalysis. The fine-tuning of metal/ligand combinations as well as reaction conditions allows for achieving chemo-, regio-, diastereo- and enantioselectivity in these transformations. Herein, we discuss recent advances in transition-metal-catalyzed construction of seven-membered rings via combination of 2-4 components mediated by a variety of metals. An emphasis is placed on the mechanistic aspects of these transformations to both illustrate the state of the science and to highlight the unique application of novel processes of transition-metals in these transformations.
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Affiliation(s)
- Barry M Trost
- Department of Chemistry, Stanford University, Stanford, California, 94305-5080, USA
| | - Zhijun Zuo
- Department of Chemistry, Stanford University, Stanford, California, 94305-5080, USA
| | - Johnathan E Schultz
- Chemical Process Development, Bristol Myers Squibb, New Brunswick, NJ, 08901, USA
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33
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Sharma UK, Ranjan P, Van der Eycken EV, You SL. Sequential and direct multicomponent reaction (MCR)-based dearomatization strategies. Chem Soc Rev 2020; 49:8721-8748. [PMID: 33079105 DOI: 10.1039/d0cs00128g] [Citation(s) in RCA: 72] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Dearomatization strategies in a multicomponent fashion often result in complex heterocyclic frameworks, which have attracted the attention of chemists due to their natural product-like structures. The combination of these two processes can easily achieve extended molecular complexity and diversity from simple starting materials with high atom economy. Thus, this field has attracted extensive interest owing to its potential significance in both asymmetric catalysis and convenient build-up of libraries of molecules with novel three-dimensional scaffolds, which may find application in medicinal chemistry. Accordingly, a systematic review on this topic will provide the synthetic organic community with a conceptual overview and comprehensive understanding of the different multicomponent reaction (MCR) cascades involving dearomatization as the characteristic step. In addition, this review will help researchers to look at this promising area from a different perspective with respect to drug discovery, new MCR-based disconnections and often hidden opportunities.
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Affiliation(s)
- Upendra K Sharma
- Laboratory for Organic & Microwave-Assisted Chemistry (LOMAC), Department of Chemistry, University of Leuven (KU Leuven), Celestijnenlaan 200F, B-3001, Leuven, Belgium.
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34
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Saleh N, Bosmani A, Besnard C, Bürgi T, Jacquemin D, Lacour J. Access to Chiral Rigid Hemicyanine Fluorophores from Tröger Bases and α-Imino Carbenes. Org Lett 2020; 22:7599-7603. [DOI: 10.1021/acs.orglett.0c02726] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Nidal Saleh
- Department of Organic Chemistry, University of Geneva, Quai Ernest Ansermet 30, CH-1211 Genève 4, Switzerland
| | - Alessandro Bosmani
- Department of Organic Chemistry, University of Geneva, Quai Ernest Ansermet 30, CH-1211 Genève 4, Switzerland
| | - Céline Besnard
- Laboratory of Crystallography, University of Geneva, Quai Ernest Ansermet 24, CH-1211 Genève 4, Switzerland
| | - Thomas Bürgi
- Department of Physical Chemistry, University of Geneva, Quai Ernest Ansermet 30, CH-1211 Genève 4, Switzerland
| | - Denis Jacquemin
- Laboratoire CEISAM UMR 6230, CNRS, Université de Nantes, 44000 Nantes, France
| | - Jérôme Lacour
- Department of Organic Chemistry, University of Geneva, Quai Ernest Ansermet 30, CH-1211 Genève 4, Switzerland
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35
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Cheng B, Zhang X, Li H, He Y, Li Y, Sun H, Wang T, Zhai H. Synthesis of Pyridothiazepines via a 1,5‐Dipolar Cycloaddition Reaction between Pyridinium 1,4‐Zwitterionic Thiolates and Activated Allenes. Adv Synth Catal 2020. [DOI: 10.1002/adsc.202000655] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- Bin Cheng
- State Key Laboratory of Applied Organic Chemistry College of Chemistry and Chemical Engineering Lanzhou University Lanzhou 730000 People's Republic of China
- Institute of Marine Biomedicine/Hoffmann Institute of Advanced Materials Shenzhen Polytechnic Shenzhen 518055 People's Republic of China
| | - Xinping Zhang
- State Key Laboratory of Applied Organic Chemistry College of Chemistry and Chemical Engineering Lanzhou University Lanzhou 730000 People's Republic of China
- Institute of Marine Biomedicine/Hoffmann Institute of Advanced Materials Shenzhen Polytechnic Shenzhen 518055 People's Republic of China
| | - Hui Li
- State Key Laboratory of Applied Organic Chemistry College of Chemistry and Chemical Engineering Lanzhou University Lanzhou 730000 People's Republic of China
- Institute of Marine Biomedicine/Hoffmann Institute of Advanced Materials Shenzhen Polytechnic Shenzhen 518055 People's Republic of China
| | - Yixuan He
- State Key Laboratory of Applied Organic Chemistry College of Chemistry and Chemical Engineering Lanzhou University Lanzhou 730000 People's Republic of China
- Institute of Marine Biomedicine/Hoffmann Institute of Advanced Materials Shenzhen Polytechnic Shenzhen 518055 People's Republic of China
| | - Yun Li
- State Key Laboratory of Applied Organic Chemistry College of Chemistry and Chemical Engineering Lanzhou University Lanzhou 730000 People's Republic of China
| | - Haiyan Sun
- Institute of Marine Biomedicine/Hoffmann Institute of Advanced Materials Shenzhen Polytechnic Shenzhen 518055 People's Republic of China
| | - Taimin Wang
- Institute of Marine Biomedicine/Hoffmann Institute of Advanced Materials Shenzhen Polytechnic Shenzhen 518055 People's Republic of China
| | - Hongbin Zhai
- Institute of Marine Biomedicine/Hoffmann Institute of Advanced Materials Shenzhen Polytechnic Shenzhen 518055 People's Republic of China
- State Key Laboratory of Chemical Oncogenomics Shenzhen Engineering Laboratory of Nano Drug Slow-Release Peking University Shenzhen Graduate School Shenzhen 518055 People's Republic of China
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36
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De N, Ko D, Baek SY, Oh C, Kim J, Baik MH, Yoo EJ. Cu(I)-Catalyzed Enantioselective [5 + 1] Cycloaddition of N-Aromatic Compounds and Alkynes via Chelating-Assisted 1,2-Dearomative Addition. ACS Catal 2020. [DOI: 10.1021/acscatal.0c03014] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Nirupam De
- Department of Applied Chemistry, Kyung Hee University, Yongin 17104, Republic of Korea
| | - Donguk Ko
- Department of Applied Chemistry, Kyung Hee University, Yongin 17104, Republic of Korea
| | - Seung-yeol Baek
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST) and Center for Catalytic Hydrocarbon Functionalizations Institute for Basic Science (IBS), Daejeon 34141, Korea
| | - Changjin Oh
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST) and Center for Catalytic Hydrocarbon Functionalizations Institute for Basic Science (IBS), Daejeon 34141, Korea
| | - Jiyoung Kim
- Department of Applied Chemistry, Kyung Hee University, Yongin 17104, Republic of Korea
| | - Mu-Hyun Baik
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST) and Center for Catalytic Hydrocarbon Functionalizations Institute for Basic Science (IBS), Daejeon 34141, Korea
| | - Eun Jeong Yoo
- Department of Applied Chemistry, Kyung Hee University, Yongin 17104, Republic of Korea
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37
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Heo N, Jung I, Kim DK, Han SH, Lee K, Lee PH. Sequential 1,3-N- to C- and 1,3-C- to C-Migration of Sulfonyl Groups through the Synthesis of 1,4-Diazepines from the Aza-[5 + 2] Cycloaddition of Indoloazomethine Ylides. Org Lett 2020; 22:6562-6567. [DOI: 10.1021/acs.orglett.0c02333] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Affiliation(s)
- Namrim Heo
- Department of Chemistry, Kangwon National University, Chuncheon 24341, Republic of Korea
| | - Ilyong Jung
- Department of Chemistry, Kangwon National University, Chuncheon 24341, Republic of Korea
| | - Dae Kyum Kim
- Department of Chemistry, Kangwon National University, Chuncheon 24341, Republic of Korea
| | - Sang Hoon Han
- Department of Chemistry, Kangwon National University, Chuncheon 24341, Republic of Korea
| | - Kooyeon Lee
- Department of Bio-Health Technology, Kangwon National University, Chuncheon 24341, Republic of Korea
| | - Phil Ho Lee
- The Korean Academy of Science and Technology, Seongnam 13630, Republic of Korea
- Department of Chemistry, Kangwon National University, Chuncheon 24341, Republic of Korea
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38
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Dong S, Fu X, Xu X. [3+2]‐Cycloaddition of Catalytically Generated Pyridinium Ylide: A General Access to Indolizine Derivatives. ASIAN J ORG CHEM 2020. [DOI: 10.1002/ajoc.202000276] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Shanliang Dong
- College of ChemistryChemical Engineering and Materials ScienceSoochow University Suzhou 215123 China
| | - Xiang Fu
- Guangdong Provincial Key Laboratory of Chiral Molecule and Drug DiscoverySchool of Pharmaceutical SciencesSun Yat-sen University Guangzhou 510006 China
| | - Xinfang Xu
- College of ChemistryChemical Engineering and Materials ScienceSoochow University Suzhou 215123 China
- Guangdong Provincial Key Laboratory of Chiral Molecule and Drug DiscoverySchool of Pharmaceutical SciencesSun Yat-sen University Guangzhou 510006 China
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39
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Smedley CJ, Li G, Barrow AS, Gialelis TL, Giel MC, Ottonello A, Cheng Y, Kitamura S, Wolan DW, Sharpless KB, Moses JE. Diversity Oriented Clicking (DOC): Divergent Synthesis of SuFExable Pharmacophores from 2-Substituted-Alkynyl-1-Sulfonyl Fluoride (SASF) Hubs. Angew Chem Int Ed Engl 2020; 59:12460-12469. [PMID: 32301265 PMCID: PMC7572632 DOI: 10.1002/anie.202003219] [Citation(s) in RCA: 70] [Impact Index Per Article: 17.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2020] [Indexed: 01/08/2023]
Abstract
Diversity Oriented Clicking (DOC) is a unified click-approach for the modular synthesis of lead-like structures through application of the wide family of click transformations. DOC evolved from the concept of achieving "diversity with ease", by combining classic C-C π-bond click chemistry with recent developments in connective SuFEx-technologies. We showcase 2-Substituted-Alkynyl-1-Sulfonyl Fluorides (SASFs) as a new class of connective hub in concert with a diverse selection of click-cycloaddition processes. Through the selective DOC of SASFs with a range of dipoles and cyclic dienes, we report a diverse click-library of 173 unique functional molecules in minimal synthetic steps. The SuFExable library comprises 10 discrete heterocyclic core structures derived from 1,3- and 1,5-dipoles; while reaction with cyclic dienes yields several three-dimensional bicyclic Diels-Alder adducts. Growing the library to 278 discrete compounds through late-stage modification was made possible through SuFEx click derivatization of the pendant sulfonyl fluoride group in 96 well-plates-demonstrating the versatility of the DOC approach for the rapid synthesis of diverse functional structures. Screening for function against MRSA (USA300) revealed several lead hits with improved activity over methicillin.
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Affiliation(s)
- Christopher J Smedley
- La Trobe Institute for Molecular Science, La Trobe University, Melbourne, VIC, 3086, Australia
| | - Gencheng Li
- Department of Chemistry, The Scripps Research Institute, La Jolla, CA, 92037, USA
| | - Andrew S Barrow
- La Trobe Institute for Molecular Science, La Trobe University, Melbourne, VIC, 3086, Australia
| | - Timothy L Gialelis
- La Trobe Institute for Molecular Science, La Trobe University, Melbourne, VIC, 3086, Australia
| | - Marie-Claire Giel
- La Trobe Institute for Molecular Science, La Trobe University, Melbourne, VIC, 3086, Australia
| | - Alessandra Ottonello
- La Trobe Institute for Molecular Science, La Trobe University, Melbourne, VIC, 3086, Australia
| | - Yunfei Cheng
- Department of Chemistry, The Scripps Research Institute, La Jolla, CA, 92037, USA
| | - Seiya Kitamura
- Department of Molecular Medicine, The Scripps Research Institute, La Jolla, CA, 92037, USA
| | - Dennis W Wolan
- Department of Molecular Medicine, The Scripps Research Institute, La Jolla, CA, 92037, USA
| | - K Barry Sharpless
- Department of Chemistry, The Scripps Research Institute, La Jolla, CA, 92037, USA
| | - John E Moses
- La Trobe Institute for Molecular Science, La Trobe University, Melbourne, VIC, 3086, Australia.,Cancer Center, Cold Spring Harbor Laboratory, 1 Bungtown Rd, Cold Spring Harbor, NY, 11724, USA
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40
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Diversity Oriented Clicking (DOC): Divergent Synthesis of SuFExable Pharmacophores from 2‐Substituted‐Alkynyl‐1‐Sulfonyl Fluoride (SASF) Hubs. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202003219] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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41
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Li Z, Li S, Kan T, Wang X, Xin X, Hou Y, Gong P. Silver(I)‐ and Base‐Mediated formal [4+3] Cycloaddition of
in Situ
generated 1,2‐Diaza‐1,3‐dienes with
C,N
‐Cyclic Azomethine Imines: An Efficient Protocol for the Synthesis of Tetrazepine Derivatives. Adv Synth Catal 2020. [DOI: 10.1002/adsc.202000398] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Zefei Li
- School of Pharmaceutical EngineeringShenyang Pharmaceutical University 103 Wenhua Road, Shenhe District Shenyang 110016 People's Republic of China
| | - Shuaikang Li
- School of Pharmaceutical EngineeringShenyang Pharmaceutical University 103 Wenhua Road, Shenhe District Shenyang 110016 People's Republic of China
| | - Tianjiao Kan
- School of Pharmaceutical EngineeringShenyang Pharmaceutical University 103 Wenhua Road, Shenhe District Shenyang 110016 People's Republic of China
| | - Xinyue Wang
- School of Pharmaceutical EngineeringShenyang Pharmaceutical University 103 Wenhua Road, Shenhe District Shenyang 110016 People's Republic of China
| | - Xin Xin
- School of Pharmaceutical EngineeringShenyang Pharmaceutical University 103 Wenhua Road, Shenhe District Shenyang 110016 People's Republic of China
| | - Yunlei Hou
- School of Pharmaceutical EngineeringShenyang Pharmaceutical University 103 Wenhua Road, Shenhe District Shenyang 110016 People's Republic of China
| | - Ping Gong
- School of Pharmaceutical EngineeringShenyang Pharmaceutical University 103 Wenhua Road, Shenhe District Shenyang 110016 People's Republic of China
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42
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Keesari NR, Mudavath S, M. V. KR, Sridhar B, Subba Reddy BV. Microwave accelerated azomethine ylide cycloaddition with Baylis–Hillman adducts. SYNTHETIC COMMUN 2020. [DOI: 10.1080/00397911.2020.1725975] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Affiliation(s)
- Nagarjuna Reddy Keesari
- Fluoro and Agrochemicals, CSIR – Indian Institute of Chemical Technology, Hyderabad, India
- Academy of Scientific and Innovative Research (AcSIR), New Delhi, India
| | - Somanath Mudavath
- Fluoro and Agrochemicals, CSIR – Indian Institute of Chemical Technology, Hyderabad, India
| | - Krishna Rao M. V.
- Fluoro and Agrochemicals, CSIR – Indian Institute of Chemical Technology, Hyderabad, India
- Academy of Scientific and Innovative Research (AcSIR), New Delhi, India
| | - Balasubramanian Sridhar
- Laboratory of X-Ray Crystallography, CSIR – Indian Institute of Chemical Technology, Hyderabad, India
| | - B. V. Subba Reddy
- Fluoro and Agrochemicals, CSIR – Indian Institute of Chemical Technology, Hyderabad, India
- Academy of Scientific and Innovative Research (AcSIR), New Delhi, India
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43
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Kahar N, Jadhav P, Reddy RVR, Dawande S. A rhodium(ii) catalysed domino synthesis of azepino fused diindoles from isatin tethered N-sulfonyl-1,2,3-triazoles and indoles. Chem Commun (Camb) 2020; 56:1207-1210. [PMID: 31895362 DOI: 10.1039/c9cc08377d] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
An efficient and convenient protocol for the synthesis of a novel class of azepino fused diindoles from isatin tethered N-sulfonyl-1,2,3-triazoles and indoles has been disclosed. The reaction proceeds via denitrogenative aza-vinyl rhodium carbene formation to give a carbonyl ylide, which with indole results in 1,3-dipolar cycloaddition followed by sequential semipinacol rearrangement/ring expansion/oxidation to produce azepino fused diindoles. The reaction shows a broad substrate scope giving up to 81% yield. Furthermore, reversible catalytic hydrogenation and photophysical studies were carried out to demonstrate the application of these molecules.
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Affiliation(s)
- Nilesh Kahar
- Department of Chemistry, Institute of Chemical Technology, Mumbai, Maharashtra 400019, India.
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44
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Lee J, Ko D, Park H, Yoo EJ. Direct cyclopropanation of activated N-heteroarenes via site- and stereoselective dearomative reactions. Chem Sci 2020; 11:1672-1676. [PMID: 32206287 PMCID: PMC7069384 DOI: 10.1039/c9sc06369b] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2019] [Accepted: 12/30/2019] [Indexed: 12/23/2022] Open
Abstract
A divergent cyclopropanation reaction has been accomplished via the dearomative addition of sulfur ylides to activated N-heteroarenes.
A divergent cyclopropanation reaction has been accomplished via the dearomative addition of sulfur ylides to activated N-heteroarenes. A series of biologically significant molecular skeletons was obtained by the direct cyclopropanation of quinolinium zwitterions. Furthermore, a straightforward synthetic route to optically enriched cyclopropane-fused heterocycles was developed using sulfur ylides as chiral nucleophiles in the 1,4-dearomative reaction.
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Affiliation(s)
- Jiyoun Lee
- Department of Applied Chemistry , Kyung Hee University , Yongin , 17104 , Republic of Korea .
| | - Donguk Ko
- Department of Applied Chemistry , Kyung Hee University , Yongin , 17104 , Republic of Korea .
| | - Hyunju Park
- Department of Applied Chemistry , Kyung Hee University , Yongin , 17104 , Republic of Korea .
| | - Eun Jeong Yoo
- Department of Applied Chemistry , Kyung Hee University , Yongin , 17104 , Republic of Korea .
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45
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Chen J, Yin Z, Huang Y. Phosphine-Catalyzed Divergent [4+3] Domino Annulations of CF3-Containing Imines with MBH Carbonates: Construction of Perfluoroalkylated Benzazepines. Org Lett 2019; 21:7060-7064. [DOI: 10.1021/acs.orglett.9b02626] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Junlong Chen
- State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, China
| | - Zhongmo Yin
- State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, China
| | - You Huang
- State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, China
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46
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Lee JY, Kim J, Lee JH, Hwang H, Yoo EJ. Higher‐Order Cycloaddition of N‐Aromatic Zwitterions and Ketenes to Access Diazepine Derivatives. ASIAN J ORG CHEM 2019. [DOI: 10.1002/ajoc.201900353] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Affiliation(s)
- Ju Young Lee
- Department of Applied ChemistryKyung Hee University Youngin 17104 Korea
| | - Jiyoung Kim
- Department of Applied ChemistryKyung Hee University Youngin 17104 Korea
| | - Ji Hye Lee
- Department of ChemistryKangwon National University Chuncheon 24341 Korea
| | - Hyonseok Hwang
- Department of ChemistryKangwon National University Chuncheon 24341 Korea
| | - Eun Jeong Yoo
- Department of Applied ChemistryKyung Hee University Youngin 17104 Korea
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47
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Cui HL, Liu S, Jiang L. Catalyst-Free Synthesis of Novel Dimeric Tetrahydroisoquinoline Derivatives through [2+2+2] Annulation. European J Org Chem 2019. [DOI: 10.1002/ejoc.201900873] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Hai-Lei Cui
- Laboratory of Asymmetric Synthesis; Chongqing University of Arts and Sciences; 319 Honghe Ave. Yongchuan Chongqing 402160 China
| | - Si Liu
- Laboratory of Asymmetric Synthesis; Chongqing University of Arts and Sciences; 319 Honghe Ave. Yongchuan Chongqing 402160 China
| | - Lu Jiang
- Laboratory of Asymmetric Synthesis; Chongqing University of Arts and Sciences; 319 Honghe Ave. Yongchuan Chongqing 402160 China
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48
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He M, Chen N, Wang J, Peng S. Rhodium-Catalyzed Regiodivergent [3 + 2] and [5 + 2] Cycloadditions of Quinolinium Ylides with Alkynes. Org Lett 2019; 21:5167-5171. [DOI: 10.1021/acs.orglett.9b01765] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Min He
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen 529020, P. R. China
| | - Nuan Chen
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen 529020, P. R. China
| | - Jian Wang
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen 529020, P. R. China
- School of Pharmaceutical Sciences, Key Laboratory of Bioorganic Phosphorous Chemistry & Chemical Biology (Ministry of Education), Tsinghua University, Beijing 100084, P. R. China
| | - Shiyong Peng
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen 529020, P. R. China
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49
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Ko D, Baek SY, Shim JY, Lee JY, Baik MH, Yoo EJ. Catalytic Cascade Reaction To Access Cyclopentane-Fused Heterocycles: Expansion of Pd-TMM Cycloaddition. Org Lett 2019; 21:3998-4002. [PMID: 31090429 DOI: 10.1021/acs.orglett.9b01178] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A palladium-catalyzed reaction of N-aromatic zwitterion and trimethylenemethane that gives fused N-heterocycles via dearomative [3 + 2] cycloaddition and intramolecular cyclization is developed, and a cyclopentane-fused cyclic product is generated. Combining computational and experimental studies, the site-selective dearomatization and the mechanism of this novel reaction are investigated in detail, and the value of pyridinium zwitterion as a reactant is demonstrated.
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Affiliation(s)
- Donguk Ko
- Department of Applied Chemistry and Global Center for Pharmaceutical Ingredient Materials , Kyung Hee University , Yongin 17104 , Korea
| | - Seung-Yeol Baek
- Department of Chemistry , Korea Advanced Institute of Science and Technology (KAIST) and Center for Catalytic Hydrocarbon Functionalizations, Institute for Basic Science (IBS) , Daejeon 34141 , Korea
| | - Jae Yul Shim
- Department of Applied Chemistry and Global Center for Pharmaceutical Ingredient Materials , Kyung Hee University , Yongin 17104 , Korea
| | - Ju Young Lee
- Department of Applied Chemistry and Global Center for Pharmaceutical Ingredient Materials , Kyung Hee University , Yongin 17104 , Korea
| | - Mu-Hyun Baik
- Department of Chemistry , Korea Advanced Institute of Science and Technology (KAIST) and Center for Catalytic Hydrocarbon Functionalizations, Institute for Basic Science (IBS) , Daejeon 34141 , Korea
| | - Eun Jeong Yoo
- Department of Applied Chemistry and Global Center for Pharmaceutical Ingredient Materials , Kyung Hee University , Yongin 17104 , Korea
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50
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Rajasekar S, Anbarasan P. One-Pot Transannulation of N-Sulfonyl-1,2,3-triazoles to Dihydro-β-carbolines and Dihydroisoquinolines via Rhodium-Catalyzed C–H Insertion-cum-Base-Mediated Aza-Michael Reaction. J Org Chem 2019; 84:7747-7761. [DOI: 10.1021/acs.joc.9b00644] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Shanmugam Rajasekar
- Department of Chemistry, Indian Institute of Technology Madras, Chennai 600036, India
| | - Pazhamalai Anbarasan
- Department of Chemistry, Indian Institute of Technology Madras, Chennai 600036, India
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