1
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Zhu Z, Wu Q, Song X, Ni Q. Thermodynamic Controlled Regioselective C1-Functionalization of Indolizines with 3-Hydroxyisoindolinones via Brønsted Acid Catalyzed aza-Friedel-Crafts Reaction. J Org Chem 2024; 89:2794-2799. [PMID: 38294192 DOI: 10.1021/acs.joc.3c02522] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2024]
Abstract
A Brønsted acid catalyzed aza-Friedel-Crafts reaction of indolizines with 3-hydroxyisoindolinones has been established, which constructs isoindolinone derivatives bearing a tetrasubstituted stereocenter in good to high yields and enantioselectivities. Notably, this strategy provides a new access to C1-functionalization of indolizines with excellent regioselectivities. Moreover, this intriguing C1-regioselective transformation was induced under thermodynamic control.
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Affiliation(s)
- Zhiming Zhu
- Key Laboratory of Functionalized Molecular Solids, Ministry of Education, Anhui Key Laboratory of Molecule-Based Materials (State Key Laboratory Cultivation Base), College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241002, Anhui, P. R. China
| | - Qianling Wu
- Key Laboratory of Functionalized Molecular Solids, Ministry of Education, Anhui Key Laboratory of Molecule-Based Materials (State Key Laboratory Cultivation Base), College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241002, Anhui, P. R. China
| | - Xiaoxiao Song
- Key Laboratory of Functionalized Molecular Solids, Ministry of Education, Anhui Key Laboratory of Molecule-Based Materials (State Key Laboratory Cultivation Base), College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241002, Anhui, P. R. China
| | - Qijian Ni
- Key Laboratory of Functionalized Molecular Solids, Ministry of Education, Anhui Key Laboratory of Molecule-Based Materials (State Key Laboratory Cultivation Base), College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241002, Anhui, P. R. China
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2
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Shende SU, Al-Shar'i NA, Saini SM, Mohanlall V, Gleiser RM, Deb PK, Morsy MA, Venugopala KN, Chandrashekharappa S. Synthesis, characterization and larvicidal studies of ethyl 3-benzoyl-7-(piperidin-1-yl)indolizine-1-carboxylate analogues against Anopheles arabiensis and cheminformatics approaches. J Biomol Struct Dyn 2024:1-13. [PMID: 38315452 DOI: 10.1080/07391102.2024.2311881] [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: 08/09/2023] [Accepted: 01/23/2024] [Indexed: 02/07/2024]
Abstract
According to WHO, in 2021, there was an estimation of 247 million malaria cases from 84 malaria-endemic countries. Globally an estimated count of 2 billion malaria cases and 11.7 million deaths due to malaria were recorded in the past two decades. Further, the emergence of drug-resistant mosquitos threatens mankind. Therefore, the development of newer larvicidal agents is the need of the hour. This research identifies a new series of variably substituted indolizines for their effectiveness in controlling Anopheles arabiensis larvae through larvicidal activity. The series of Ethyl 3-benzoyl-7-(piperidin-1-yl)indolizine-1-carboxylate analogues (4a-j) were synthesized by reacting 4-(piperidin-1-yl)pyridine, phenacyl bromides with ethyl propiolate via 1, 3-dipolar cycloaddition and the green metrics of the process are reported. All the newly synthesized compounds were characterized by spectroscopic techniques such as 1H NMR,13C NMR, FT-IR, and HRMS. The larvicidal effectiveness of the newly synthesized compounds was assessed against Anopheles arabiensis. Among the compounds studied, namely 4c, 4d, 4e, and 4f, displayed the most notable larval mortality rates within the series, reaching 73%, 81%, 76%, and 71% respectively, in contrast with the negative control acetone. In comparison, the standard Temephos exhibited a mortality rate of 99% at the same concentration. Furthermore, computational approaches including molecular docking and molecular dynamics simulations identified the potential targets of the series compounds as the larval Acetylcholinesterase (AChE) enzyme and the Sterol Carrier Protein-2 (SCP-2) protein. However, it is essential for these computational predictions to undergo experimental validation.Communicated by Ramaswamy H. Sarma.
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Affiliation(s)
- Sondarya Uttam Shende
- Department of Medicinal Chemistry, National Institute of Pharmaceutical Education and Research Raebareli (NIPER-R), Lucknow, UP, India
| | - Nizar A Al-Shar'i
- Department of Medicinal Chemistry and Pharmacognosy, Faculty of Pharmacy, Jordan University of Science and Technology, Irbid, Jordan
| | - Surbhi Mahender Saini
- Department of Medicinal Chemistry, National Institute of Pharmaceutical Education and Research Raebareli (NIPER-R), Lucknow, UP, India
| | - Viresh Mohanlall
- Department of Biotechnology and Food Science, Faculty of Applied Sciences, Durban University of Technology, Durban, South Africa
| | - Raquel M Gleiser
- CREAN-IMBIV (UNC-CONICET), Av. Valparaiso s.n., and FCEFyN, Av. V. Sarsfield 299, Universidad Nacional de Cordoba, Cordoba, Argentina
| | - Pran Kishore Deb
- Department of Pharmaceutical Sciences and Technology, Birla Institute of Technology (BIT), Mesra, Ranchi, Jharkhand, India
| | - Mohamed A Morsy
- Department of Pharmaceutical Sciences, College of Clinical Pharmacy, King Faisal University, Al-Ahsa, Saudi Arabia
- Department of Pharmacology, Faculty of Medicine, Minia University, El-Minia, Egypt
| | - Katharigatta N Venugopala
- Department of Biotechnology and Food Science, Faculty of Applied Sciences, Durban University of Technology, Durban, South Africa
- Department of Pharmaceutical Sciences, College of Clinical Pharmacy, King Faisal University, Al-Ahsa, Saudi Arabia
| | - Sandeep Chandrashekharappa
- Department of Medicinal Chemistry, National Institute of Pharmaceutical Education and Research Raebareli (NIPER-R), Lucknow, UP, India
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3
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Nguyen TVQ. Direct C7-H Arylation of Pyrazolo[1,5-a]azines with Aryl Chlorides. Chemistry 2023; 29:e202301485. [PMID: 37183726 DOI: 10.1002/chem.202301485] [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: 05/11/2023] [Revised: 05/12/2023] [Accepted: 05/15/2023] [Indexed: 05/16/2023]
Abstract
C7-Arylated pyrazolo[1,5-a]azines are important structural motifs with profound applications in drug and material research. Here, we report a general and straighforward synthesis of these bi(hetero)aryls via palladium-catalyzed direct C-H arylation, employing low-cost and abundant (hetero)aryl chlorides as the aryl source. The catalytic system is robust and covers a wide substrate scope regarding heteroarenes as well as (hetero)aryl chlorides, with possible extension to the C-H arylation of [1,2,4]triazolo[1,5-a]pyrimidines. This study also presents a rare example of using (hetero)aryl chlorides for the direct C-H arylation of six-membered heteroarenes.
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Affiliation(s)
- Thanh V Q Nguyen
- Medicinal Chemistry, Research and Early Development, Respiratory and Immunology, BioPharmaceuticals R&D, AstraZeneca, Gothenburg, Sweden
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4
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Antón-Cánovas T, Achelle S, Paz Fernández-Liencres M, Navarro A, Alonso F, Rodríguez-López J. Acidochromism of amino-substituted indolizine chromophores: towards white light emission. J Mol Liq 2023. [DOI: 10.1016/j.molliq.2023.121758] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/04/2023]
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5
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Antón‐Cánovas T, Alonso F. The Eschenmoser's Salt as a Formylation Agent for the Synthesis of Indolizinecarbaldehydes and Their Use for Colorimetric Nitrite Detection. Angew Chem Int Ed Engl 2023; 62:e202215916. [PMID: 36448641 PMCID: PMC10108028 DOI: 10.1002/anie.202215916] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2022] [Revised: 11/29/2022] [Accepted: 11/30/2022] [Indexed: 12/02/2022]
Abstract
C-H bond formylation is the most immediate way to incorporate the versatile formyl group into (hetero)aromatics. However, the type of reagents and severe conditions involved in the classical formylation methods often curtail their application, especially in the presence of other functional groups. Herein, we present the Eschenmoser's salt, a commercially available (dimethylamino)methylating chemical, as a useful reagent for the C-H formylation of indolizines and other compounds. The method is straightforward and mild, furnishing indolizinecarbaldehydes in modest-to-good yields with exclusive and remote regioselectivity. Furthermore, these compounds can be easily transformed into push-pull dyes and are highly selective in the colorimetric detection of nitrite, a substance extensively employed as preservative in the food industry, the concentration of which is crucial to control to prevent harmful effects in living organisms. The assay is simple, allowing the naked-eye detection of nitrite in solution or on a cotton swab for a wide range of concentrations.
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Affiliation(s)
- Teresa Antón‐Cánovas
- Instituto de Síntesis Orgánica and Departamento de Química OrgánicaFacultad de CienciasUniversidad de AlicanteApdo. 9903080AlicanteSpain
| | - Francisco Alonso
- Instituto de Síntesis Orgánica and Departamento de Química OrgánicaFacultad de CienciasUniversidad de AlicanteApdo. 9903080AlicanteSpain
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6
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Song X, Fan Y, Zhu Z, Ni Q. Chiral Phosphoric Acid-Catalyzed Asymmetric Arylation of Indolizines: Atroposelective Access to Axially Chiral 3-Arylindolizines. Org Lett 2022; 24:2315-2320. [PMID: 35297627 DOI: 10.1021/acs.orglett.2c00461] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
We report herein a highly straightforward strategy for the synthesis of a new axially chiral 3-arylindolizine scaffold via organocatalytic asymmetric arylation reactions of indolizines and p-quinone esters. Using the chiral phosphoric acid catalyst, a series of axially chiral 3-arylindolizines were accessed in good to excellent yields and atropo-enantioselectivities. This approach features a broad substrate scope, mild reaction conditions, good scalability, and facile derivatization. Moreover, preliminary investigations based on nonlinear effects and a thermal racemization study demonstrated the intrinsic pathway for the formation of axial chirality and its potential utility.
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Affiliation(s)
- Xiaoxiao Song
- Key Laboratory of Functionalized Molecular Solids, Ministry of Education, Anhui Key Laboratory of Molecule-Based Materials (State Key Laboratory Cultivation Base), College of Chemistry and Materials Science, Anhui Normal University, Wuhu, Anhui 241002, P. R. China
| | - Yanjun Fan
- Key Laboratory of Functionalized Molecular Solids, Ministry of Education, Anhui Key Laboratory of Molecule-Based Materials (State Key Laboratory Cultivation Base), College of Chemistry and Materials Science, Anhui Normal University, Wuhu, Anhui 241002, P. R. China
| | - Zhiming Zhu
- Key Laboratory of Functionalized Molecular Solids, Ministry of Education, Anhui Key Laboratory of Molecule-Based Materials (State Key Laboratory Cultivation Base), College of Chemistry and Materials Science, Anhui Normal University, Wuhu, Anhui 241002, P. R. China
| | - Qijian Ni
- Key Laboratory of Functionalized Molecular Solids, Ministry of Education, Anhui Key Laboratory of Molecule-Based Materials (State Key Laboratory Cultivation Base), College of Chemistry and Materials Science, Anhui Normal University, Wuhu, Anhui 241002, P. R. China
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7
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Wang K, Zhang J, Hu R, Liu C, Bartholome TA, Ge H, Li B. Transition-Metal-Catalyzed C–C Bond-Forming Reactions via C–H Activation for the Development of Fluorescent Materials with Practical Value. ACS Catal 2022. [DOI: 10.1021/acscatal.1c05722] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Kangmin Wang
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, School of Pharmaceutical Sciences, Chongqing University, Chongqing 401331, P. R. China
| | - Jingxian Zhang
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, School of Pharmaceutical Sciences, Chongqing University, Chongqing 401331, P. R. China
| | - Ruike Hu
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, School of Pharmaceutical Sciences, Chongqing University, Chongqing 401331, P. R. China
| | - Chong Liu
- Department of Chemistry and Biochemistry, Texas Tech University, Lubbock, Texas 79409-1061, United States
| | - Tyler A. Bartholome
- Department of Chemistry and Biochemistry, Texas Tech University, Lubbock, Texas 79409-1061, United States
| | - Haibo Ge
- Department of Chemistry and Biochemistry, Texas Tech University, Lubbock, Texas 79409-1061, United States
| | - Bijin Li
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, School of Pharmaceutical Sciences, Chongqing University, Chongqing 401331, P. R. China
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8
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Kim T, Kim J. Color-Tunable Indolizine-Based Fluorophores and Fluorescent pH Sensor. Molecules 2021; 27:12. [PMID: 35011241 PMCID: PMC8746752 DOI: 10.3390/molecules27010012] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2021] [Revised: 12/17/2021] [Accepted: 12/20/2021] [Indexed: 12/03/2022] Open
Abstract
A new fluorescent indolizine-based scaffold was developed using a straightforward synthetic scheme starting from a pyrrole ring. In this fluorescent system, an N,N-dimethylamino group in the aryl ring at the C-3 position of indolizine acted as an electron donor and played a crucial role in inducing a red shift in the emission wavelength based on the ICT process. Moreover, various electron-withdrawing groups, such as acetyl and aldehyde, were introduced at the C-7 position of indolizine, to tune and promote the red shift of the emission wavelength, resulting in a color range from blue to orange (462-580 nm). Furthermore, the ICT effect in indolizine fluorophores allowed the design and development of new fluorescent pH sensors of great potential in the field of fluorescence bioimaging and sensors.
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Affiliation(s)
- Taegwan Kim
- Department of Chemistry, Soongsil University, Seoul 06978, Korea;
| | - Jonghoon Kim
- Department of Chemistry, Soongsil University, Seoul 06978, Korea;
- Integrative Institute of Basic Science, Soongsil University, Seoul 06978, Korea
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9
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Saroha M, Sindhu J, Kumar S, Bhasin KK, Khurana JM, Varma RS, Tomar D. Transition Metal‐Free Sulfenylation of C−H Bonds for C−S Bond Formation in Recent Years: Mechanistic Approach and Promising Future. ChemistrySelect 2021. [DOI: 10.1002/slct.202102042] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Affiliation(s)
- Mohit Saroha
- Department of Chemistry University of Delhi Delhi 110007 India
| | - Jayant Sindhu
- Department of Chemistry, COBS&H, CCSHAU Hisar Haryana 125004 India
| | - Sudhir Kumar
- Department of Chemistry, COBS&H, CCSHAU Hisar Haryana 125004 India
| | - Kuldip K. Bhasin
- Department of Chemistry & Centre of Advanced Studies in Chemistry Panjab University Chandigarh 160014 India
| | | | - Rajender S. Varma
- Regional Centre of Advanced Technologies and Materials Palacký University in Olomouc Šlechtitelů 27 783 71 Olomouc Czech Republic
| | - Deepak Tomar
- Department of Chemistry R. K. P. G. College Shamli Uttar Pradesh 247776 India
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10
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Rakshit A, Dhara HN, Alam T, Dahiya A, Patel BK. Cu(II)-Promoted Cascade Synthesis of Fused Imidazo-Pyridine-Carbonitriles. J Org Chem 2021; 86:17504-17510. [PMID: 34723521 DOI: 10.1021/acs.joc.1c02198] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
A Cu(II)-promoted synthesis of an aza-fused N-heterocycle having a benz-imidazopyridine scaffold is developed via an addition-cyclization reaction followed by an Ullmann-type C-N coupling between o-iodoanilines and γ-ketodinitriles. This protocol features a broad substrate scope, giving products in 32-84% yields. The compounds show excellent photoluminescence properties having two absorption maxima in the region between 270-280 and 338-350 nm and emission maxima in the range of 502-533 nm. The HOMO-LUMO energy gap of 3.49-3.57 eV was determined using Gaussian 09 at the B3LYP/6-31G (d, p) basis set level. We also demonstrated a few postsynthetic modifications.
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Affiliation(s)
- Amitava Rakshit
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati, Assam 781039, India
| | - Hirendra Nath Dhara
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati, Assam 781039, India
| | - Tipu Alam
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati, Assam 781039, India
| | - Anjali Dahiya
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati, Assam 781039, India
| | - Bhisma K Patel
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati, Assam 781039, India
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11
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Lu J, Wang M, Xu R, Sun H, Zheng X, Zhong G, Zeng X. Iridium Catalysed Asymmetric Allylic Substitution Reaction of Indolizine Derivatives. ASIAN J ORG CHEM 2021. [DOI: 10.1002/ajoc.202100171] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Affiliation(s)
- Jiamin Lu
- College of Materials Chemistry and Chemical Engineering Hangzhou Normal University No. 2318 Yuhangtang Road Hangzhou 311121 P. R. China
| | - Meifang Wang
- College of Materials Chemistry and Chemical Engineering Hangzhou Normal University No. 2318 Yuhangtang Road Hangzhou 311121 P. R. China
| | - Ruigang Xu
- College of Materials Chemistry and Chemical Engineering Hangzhou Normal University No. 2318 Yuhangtang Road Hangzhou 311121 P. R. China
| | - Haizhou Sun
- College of Materials Chemistry and Chemical Engineering Hangzhou Normal University No. 2318 Yuhangtang Road Hangzhou 311121 P. R. China
| | - Xuan Zheng
- College of Materials Chemistry and Chemical Engineering Hangzhou Normal University No. 2318 Yuhangtang Road Hangzhou 311121 P. R. China
| | - Guofu Zhong
- College of Materials Chemistry and Chemical Engineering Hangzhou Normal University No. 2318 Yuhangtang Road Hangzhou 311121 P. R. China
| | - Xiaofei Zeng
- College of Materials Chemistry and Chemical Engineering Hangzhou Normal University No. 2318 Yuhangtang Road Hangzhou 311121 P. R. China
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12
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13
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Chiu W, Chen J, Liu S, Barve IJ, Huang W, Sun C. One‐pot Synthesis of Isoquinoline‐Fused Isoquinolines via Intramolecular Hydroamination/Aza‐Claisen Type Rearrangement Cascade. Adv Synth Catal 2021. [DOI: 10.1002/adsc.202001576] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Affiliation(s)
- Wei‐Jung Chiu
- Department of Applied Chemistry National Chiao-Tung University 1001 Ta-Hsueh Road Hsinchu 300-10 Taiwan
| | - Jin‐Yu Chen
- Department of Applied Chemistry National Chiao-Tung University 1001 Ta-Hsueh Road Hsinchu 300-10 Taiwan
| | - Shih‐I Liu
- Department of Applied Chemistry National Chiao-Tung University 1001 Ta-Hsueh Road Hsinchu 300-10 Taiwan
| | - Indrajeet J. Barve
- Department of Applied Chemistry National Chiao-Tung University 1001 Ta-Hsueh Road Hsinchu 300-10 Taiwan
- Department of Chemistry MES Abasaheb Garware College Pune India
| | - Wan‐Wen Huang
- Department of Applied Chemistry National Chiao-Tung University 1001 Ta-Hsueh Road Hsinchu 300-10 Taiwan
| | - Chung‐Ming Sun
- Department of Applied Chemistry National Chiao-Tung University 1001 Ta-Hsueh Road Hsinchu 300-10 Taiwan
- Department of Medicinal and Applied Chemistry Kaohsiung Medical University 100, Shih-Chuan 1st Road Kaohsiung 807-08 Taiwan
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14
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Jin S, Wang L, Han H, Liu X, Bu Z, Wang Q. Assembly of functionalized π-extended indolizine polycycles through dearomative [3+2] cycloaddition/oxidative decarbonylation. Chem Commun (Camb) 2021; 57:359-362. [PMID: 33319883 DOI: 10.1039/d0cc07116a] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Reported herein is an unexpected construction of functionalized π-extended indolizine polycycles through a one-pot two-step cascade process comprising the base-promoted dearomative [3+2] cycloaddition of quinilinium salts and 3-alkenyl oxindoles, followed by a DDQ-mediated oxidative decarbonylation. Moreover, we could achieve the substrate-controlled diverse synthesis of structurally strained cyclopropane spirooxindole by using pyridinium salts as starting materials.
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Affiliation(s)
- Shaojing Jin
- Institute of Functional Organic Molecular Engineering, College of Chemistry and Chemical Engineering, Henan University, Kaifeng 475004, China.
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15
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Chen HR, Hu ZY, Qin HL, Tang H. A novel three-component reaction for constructing indolizine-containing aliphatic sulfonyl fluorides. Org Chem Front 2021. [DOI: 10.1039/d0qo01430c] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
A copper-catalyzed three-component reaction for transforming quinolines, isoquinolines and pyridines to a class of indolizine-containing alkyl sulfonyl fluorides was developed.
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Affiliation(s)
- Hong-Ru Chen
- School of Chemistry
- Chemical Engineering and Life Science; and State Key Laboratory of Advanced Technology for Materials Synthesis and Processing
- Wuhan University of Technology
- Wuhan 430070
- China
| | - Zhen-Yu Hu
- School of Chemistry
- Chemical Engineering and Life Science; and State Key Laboratory of Advanced Technology for Materials Synthesis and Processing
- Wuhan University of Technology
- Wuhan 430070
- China
| | - Hua-Li Qin
- School of Chemistry
- Chemical Engineering and Life Science; and State Key Laboratory of Advanced Technology for Materials Synthesis and Processing
- Wuhan University of Technology
- Wuhan 430070
- China
| | - Haolin Tang
- School of Chemistry
- Chemical Engineering and Life Science; and State Key Laboratory of Advanced Technology for Materials Synthesis and Processing
- Wuhan University of Technology
- Wuhan 430070
- China
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16
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Jadala C, Ganga Reddy V, Hari Krishna N, Shankaraiah N, Kamal A. Base-mediated 1,3-dipolar cycloaddition of pyridinium bromides with bromoallyl sulfones: a facile access to indolizine scaffolds. Org Biomol Chem 2020; 18:8694-8701. [PMID: 33084715 DOI: 10.1039/d0ob01696a] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
An expedient and transition-metal-free synthetic strategy has been developed for the construction of substituted indolizines from a unique combination of pyridinium salts and 2-bromoallyl sulfones. This approach does not compromise with the diverse substitutions on both the pyridinium salts and 2-bromoallyl sulfones. Wide substrate scope, operational simplicity, milder reaction conditions and good to moderate yields are the merits associated with the current approach. Moreover, this method provides two products which are amenable for the generation of a library of key indolizine building blocks.
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Affiliation(s)
- Chetna Jadala
- Department of Medicinal Chemistry, National Institute of Pharmaceutical Education and Research (NIPER), Hyderabad 500 037, India.
| | - Velma Ganga Reddy
- Medicinal Chemistry & Pharmacology, CSIR-Indian Institute of Chemical Technology, Hyderabad 500 007, India and Centre for Advanced Materials & Industrial Chemistry (CAMIC), School of Science, RMIT University, GPO Box 2476, Melbourne 3001, Australia
| | - Namballa Hari Krishna
- Department of Medicinal Chemistry, National Institute of Pharmaceutical Education and Research (NIPER), Hyderabad 500 037, India. and Medicinal Chemistry & Pharmacology, CSIR-Indian Institute of Chemical Technology, Hyderabad 500 007, India and Department of Chemistry, Hunter College, City University of New York, 695 Park Avenue, NY 10065, USA
| | - Nagula Shankaraiah
- Department of Medicinal Chemistry, National Institute of Pharmaceutical Education and Research (NIPER), Hyderabad 500 037, India.
| | - Ahmed Kamal
- Department of Medicinal Chemistry, National Institute of Pharmaceutical Education and Research (NIPER), Hyderabad 500 037, India. and Medicinal Chemistry & Pharmacology, CSIR-Indian Institute of Chemical Technology, Hyderabad 500 007, India and School of Pharmaceutical Education and Research (SPER), Jamia Hamdard, New Delhi, 110062, India
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17
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Vieira MM, Dalberto BT, Coelho FL, Schneider PH. Ultrasound-promoted regioselective synthesis of chalcogeno-indolizines by a stepwise 1,3-dipolar cycloaddition. ULTRASONICS SONOCHEMISTRY 2020; 68:105228. [PMID: 32604055 DOI: 10.1016/j.ultsonch.2020.105228] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/05/2020] [Revised: 05/20/2020] [Accepted: 06/11/2020] [Indexed: 06/11/2023]
Abstract
A series of new organochalcogen derivatives of indolizines was synthesized in moderate to excellent yields from pyridinium salts and chalcogeno-alkynes. The reaction can be carried out under thermal conditions or by sonochemical processes in short reaction times. The stepwise cycloaddition reaction forming chalcogeno-indolizines is regioselective and extends to a broad range of functional groups. Furthermore, novel chalcogeno-alkynes are reported and the first derivatives of teluro-indolizine are described. The influence of selenium functionalization on the photophysical properties of indolizines is also described, in which the compounds showed absorption in the UV-Vis region around 360 nm and emission in the blue-to-green region. Relatively low fluorescence quantum yield (ϕfl) values were calculated, in agreement with the chalcogen effect on other heterocycles.
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Affiliation(s)
- Marcelo M Vieira
- Federal University of Rio Grande do Sul (UFRGS), Chemistry Institute, Av. Bento Gonçalves 9500. CEP 91501-970, PO Box 15003, Porto Alegre, RS, Brazil
| | - Bianca T Dalberto
- Federal University of Rio Grande do Sul (UFRGS), Chemistry Institute, Av. Bento Gonçalves 9500. CEP 91501-970, PO Box 15003, Porto Alegre, RS, Brazil
| | - Felipe L Coelho
- Federal University of Rio Grande do Sul (UFRGS), Chemistry Institute, Av. Bento Gonçalves 9500. CEP 91501-970, PO Box 15003, Porto Alegre, RS, Brazil
| | - Paulo H Schneider
- Federal University of Rio Grande do Sul (UFRGS), Chemistry Institute, Av. Bento Gonçalves 9500. CEP 91501-970, PO Box 15003, Porto Alegre, RS, Brazil.
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18
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Li B, Ali AI, Ge H. Recent Advances in Using Transition-Metal-Catalyzed C–H Functionalization to Build Fluorescent Materials. Chem 2020. [DOI: 10.1016/j.chempr.2020.08.017] [Citation(s) in RCA: 50] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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19
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Copper-catalyzed formation of indolizine derivatives via one-pot reactions of chalcones, benzyl bromides and pyridines. Tetrahedron 2020. [DOI: 10.1016/j.tet.2020.131347] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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20
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Shyamlal BRK, Mathur M, Yadav DK, Chaudhary S. Microwave-assisted modified synthesis of C 8-analogues of naturally occurring methylxanthines: Synthesis, biological evaluation and their practical applications. Fitoterapia 2020; 143:104533. [PMID: 32145313 DOI: 10.1016/j.fitote.2020.104533] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2020] [Revised: 02/26/2020] [Accepted: 03/01/2020] [Indexed: 01/17/2023]
Abstract
An efficient, microwave-assisted, oxidant-interceded, transition-metal-free, cross-dehydrogenative Csp2-Csp3 coupling of C8-Caffeine 2/Theobromine 3/theophylline 4 with substituted aliphatic alcohols 11a-lvia CH bond activation for the preparation of series of substituted C8-(hydroxymethyl) Caffeine 12a-l/theobromine 13a-c/theophylline 14a-b has been developed using microwave irradiation upto 98% yield. The reaction proceeds smoothly in the presence of tert-butyl hydroperoxide (TBHP) under solvolysis condition at 120 °C for 20 min to corresponding substituted C8-(hydroxymethyl)-methylxanthine derivatives in good to excellent yields. The good substrate scope, control experiments, gram-scale synthesis, and practical synthetic transformations further highlights the practicality of this methodology. These C8-(hydroxymethyl) Caffeine 12a-l, 13a-c and 14a-b have been found to show promising in vitro antioxidant as well as antiplatelet activities.
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Affiliation(s)
- Bharti Rajesh Kumar Shyamlal
- Laboratory of Organic & Medicinal Chemistry, Department of Chemistry, Malaviya National Institute of Technology, Jawaharlal Nehru Marg, Jaipur 302017, India
| | - Manas Mathur
- School of Agriculture, Suresh Gyan Vihar University, Mahal Road, Jagatpura, Jaipur 302017, India
| | - Dharmendra K Yadav
- Gachon Institute of Pharmaceutical Sciences, Department of Pharmacy, College of Pharmacy, Gachon University of Medicine and Science, Incheon 21936, South Korea
| | - Sandeep Chaudhary
- Laboratory of Organic & Medicinal Chemistry, Department of Chemistry, Malaviya National Institute of Technology, Jawaharlal Nehru Marg, Jaipur 302017, India.
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21
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Yang WW, Chen LL, Chen P, Ye YF, Wang YB, Zhang X. Solvent-controlled divergent annulation of ynones and (iso)quinoline N-oxides: of 3-((iso)quinolin-1-yl)-4H-chromen-4-ones and 13H-isoquinolino[2,1-a]quinolin-13-ones. Chem Commun (Camb) 2020; 56:1183-1186. [PMID: 31894780 DOI: 10.1039/c9cc08713c] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
An effective annulation of ynones and (iso)quinoline N-oxides was developed to deliver various functionalized 3-((iso)quinolin-1-yl)-4H-chromen-4-ones and 13H-isoquinolino[2,1-a]quinolin-13-ones in moderate to excellent yields, respectively. This protocol exhibits high regioselectivity and broad substrate scope under transition-metal-free conditions. Moreover, the key reaction intermediate was successfully isolated and determined unambiguously by single crystal X-ray crystallography.
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Affiliation(s)
- Wan-Wan Yang
- Institute of Functional Organic Molecular Engineering, College of Chemistry and Chemical Engineering, Henan University, Kaifeng, 475004, China.
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22
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Jadhav PP, Kahar NM, Dawande SG. Ruthenium(II) Catalysed Highly Regioselective C-3 Alkenylation of Indolizines and Pyrrolo[1,2-a
]quinolines. European J Org Chem 2019. [DOI: 10.1002/ejoc.201901471] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Pankaj Pandit Jadhav
- Department of Chemistry; Institute of Chemical Technology; Nathalal Parekh Marg 400019 Matunga (East) Mumbai Maharashtra India
| | - Nilesh Machhindra Kahar
- Department of Chemistry; Institute of Chemical Technology; Nathalal Parekh Marg 400019 Matunga (East) Mumbai Maharashtra India
| | - Sudam Ganpat Dawande
- Department of Chemistry; Institute of Chemical Technology; Nathalal Parekh Marg 400019 Matunga (East) Mumbai Maharashtra India
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23
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24
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Luo N, Li M, Wang T, Li Y, Wang C. Highly Efficient Synthesis of 1‐Nitroindolizine Derivatives via the DBU/Acetic Acid System. ChemistrySelect 2019. [DOI: 10.1002/slct.201902621] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Naili Luo
- School of Chemistry and Chemical EngineeringYangzhou University 180 Siwangting Street Yangzhou 225002 P. R. China
| | - Mingshuang Li
- School of Chemistry and Chemical EngineeringYangzhou University 180 Siwangting Street Yangzhou 225002 P. R. China
| | - Ting Wang
- School of Chemistry and Chemical EngineeringYangzhou University 180 Siwangting Street Yangzhou 225002 P. R. China
| | - Yanxiang Li
- School of PharmacyTaizhou Polytechnic College Taizhou 225300 P. R. China
| | - Cunde Wang
- School of Chemistry and Chemical EngineeringYangzhou University 180 Siwangting Street Yangzhou 225002 P. R. China
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25
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Li X, Zhou G, Du X, Wang T, Zhang Z. Catalyst- and Additive-Free Cascade Reaction of Isoquinoline N-Oxides with Alkynones: An Approach to Benzoazepino[2,1-a]isoquinoline Derivatives. Org Lett 2019; 21:5630-5633. [PMID: 31287323 DOI: 10.1021/acs.orglett.9b01966] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Xuetong Li
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shaanxi Normal University, No. 620 West Chang’an Avenue, Xi’an 710119, China
| | - Guanghua Zhou
- Department of Chemistry, Nanchang Normal University, No. 889 Ruixiang Road, Nanchang 330032, China
| | - Xinru Du
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shaanxi Normal University, No. 620 West Chang’an Avenue, Xi’an 710119, China
| | - Tao Wang
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shaanxi Normal University, No. 620 West Chang’an Avenue, Xi’an 710119, China
| | - Zunting Zhang
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shaanxi Normal University, No. 620 West Chang’an Avenue, Xi’an 710119, China
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26
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Rakshit A, Sau P, Ghosh S, Patel BK. One‐Pot Sequential Synthesis of Fused Isoquinolines via Intramolecular Cyclization/Annulation and their Photophysical Investigation. Adv Synth Catal 2019. [DOI: 10.1002/adsc.201900543] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Amitava Rakshit
- Department of ChemistryIndian Institute of Technology Guwahati Guwahati- 781039, Assam India
| | - Prasenjit Sau
- Department of ChemistryIndian Institute of Technology Guwahati Guwahati- 781039, Assam India
| | - Subhendu Ghosh
- Department of ChemistryIndian Institute of Technology Guwahati Guwahati- 781039, Assam India
| | - Bhisma K. Patel
- Department of ChemistryIndian Institute of Technology Guwahati Guwahati- 781039, Assam India
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27
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Bertallo CRDS, Arroio TR, Toledo MFZJ, Sadler SA, Vessecchi R, Steel PG, Clososki GC. C‐H Activation/Metalation Approaches for the Synthesis of Indolizine Derivatives. European J Org Chem 2019. [DOI: 10.1002/ejoc.201900608] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Camila R. d. S. Bertallo
- Núcleo de Pesquisas em Produtos Naturais e Sintéticos Faculdade de Ciências Farmacêuticas de Ribeirão Preto Universidade de São Paulo Av. do Café S/N 14040‐903 Ribeirão Preto ‐ SP Brazil
| | - Thais R. Arroio
- Núcleo de Pesquisas em Produtos Naturais e Sintéticos Faculdade de Ciências Farmacêuticas de Ribeirão Preto Universidade de São Paulo Av. do Café S/N 14040‐903 Ribeirão Preto ‐ SP Brazil
| | - Mônica F. Z. J. Toledo
- Núcleo de Pesquisas em Produtos Naturais e Sintéticos Faculdade de Ciências Farmacêuticas de Ribeirão Preto Universidade de São Paulo Av. do Café S/N 14040‐903 Ribeirão Preto ‐ SP Brazil
| | - Scott A. Sadler
- Department of Chemistry Durham University South Road DH1 3LE Durham UK
| | - Ricardo Vessecchi
- Departamento de Química Faculdade de Filosofia Universidade de São Paulo Av. Bandeirantes 3900 14040‐901 Ribeirão Preto ‐ SP Brazil
| | - Patrick G. Steel
- Department of Chemistry Durham University South Road DH1 3LE Durham UK
| | - Giuliano C. Clososki
- Núcleo de Pesquisas em Produtos Naturais e Sintéticos Faculdade de Ciências Farmacêuticas de Ribeirão Preto Universidade de São Paulo Av. do Café S/N 14040‐903 Ribeirão Preto ‐ SP Brazil
- Departamento de Química Faculdade de Filosofia Universidade de São Paulo Av. Bandeirantes 3900 14040‐901 Ribeirão Preto ‐ SP Brazil
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28
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Abdulla HO, Amin AA, Raviola C, Opatz T, Protti S, Fagnoni M. Smooth Metal-Free Photoinduced Preparation of Valuable 8-Arylxanthines. European J Org Chem 2019. [DOI: 10.1002/ejoc.201900638] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Affiliation(s)
- Havall Othman Abdulla
- PhotoGreen Lab; Department of Chemistry; University of Pavia; Viale Taramelli 12 27100 Pavia Italy
- Chemistry Department; College of Science; Salahaddin University; Erbil Iraq
| | - Ahmed A. Amin
- Chemistry Department; College of Education; Salahaddin University; Erbil Iraq
| | - Carlotta Raviola
- PhotoGreen Lab; Department of Chemistry; University of Pavia; Viale Taramelli 12 27100 Pavia Italy
| | - Till Opatz
- Institute of Organic Chemistry; College of Education; Johannes Gutenberg University of Mainz; 55128 Mainz Germany
| | - Stefano Protti
- PhotoGreen Lab; Department of Chemistry; University of Pavia; Viale Taramelli 12 27100 Pavia Italy
| | - Maurizio Fagnoni
- PhotoGreen Lab; Department of Chemistry; University of Pavia; Viale Taramelli 12 27100 Pavia Italy
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29
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He D, Zhuang Z, Wang X, Li J, Li J, Wu W, Zhao Z, Jiang H, Tang BZ. Assembly of 1 H-isoindole derivatives by selective carbon-nitrogen triple bond activation: access to aggregation-induced emission fluorophores for lipid droplet imaging. Chem Sci 2019; 10:7076-7081. [PMID: 31588275 PMCID: PMC6677114 DOI: 10.1039/c9sc01035a] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2019] [Accepted: 06/07/2019] [Indexed: 12/14/2022] Open
Abstract
A method of selectively activating carbon–nitrogen triple bonds has been developed to access 1H-isoindole AIE fluorophores for lipid droplet imaging.
A novel strategy has been established to assemble a series of single (Z)- or (E)-1H-isoindole derivatives through selectively and sequentially activating carbon–nitrogen triple bonds in a multicomponent system containing various nucleophilic and electrophilic sites. The reaction provides efficient access to structurally unique fluorophores with aggregation-induced emission characteristics. These new fluorophores show fluorescence wavelengths and efficiencies that can be modulated and have excellent potential to specifically light up lipid droplets (LDs) in living cells with bright fluorescence, low cytotoxicity and better photostability than commercially available LD-specific dyes.
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Affiliation(s)
- Dandan He
- Key Laboratory of Functional Molecular Engineering of Guang Dong Province , School of Chemistry and Chemical Engineering , South China University of Technology , Guangzhou 510641 , P. R. China . ;
| | - Zeyan Zhuang
- State Key Laboratory of Luminescent Materials and Devices , Center for Aggregation-Induced Emission , South China University of Technology , Guangzhou 510640 , China .
| | - Xu Wang
- Key Laboratory of Functional Molecular Engineering of Guang Dong Province , School of Chemistry and Chemical Engineering , South China University of Technology , Guangzhou 510641 , P. R. China . ;
| | - Jiawei Li
- Key Laboratory of Functional Molecular Engineering of Guang Dong Province , School of Chemistry and Chemical Engineering , South China University of Technology , Guangzhou 510641 , P. R. China . ;
| | - Jianxiao Li
- Key Laboratory of Functional Molecular Engineering of Guang Dong Province , School of Chemistry and Chemical Engineering , South China University of Technology , Guangzhou 510641 , P. R. China . ;
| | - Wanqing Wu
- Key Laboratory of Functional Molecular Engineering of Guang Dong Province , School of Chemistry and Chemical Engineering , South China University of Technology , Guangzhou 510641 , P. R. China . ; .,State Key Laboratory of Luminescent Materials and Devices , Center for Aggregation-Induced Emission , South China University of Technology , Guangzhou 510640 , China .
| | - Zujin Zhao
- State Key Laboratory of Luminescent Materials and Devices , Center for Aggregation-Induced Emission , South China University of Technology , Guangzhou 510640 , China .
| | - Huanfeng Jiang
- Key Laboratory of Functional Molecular Engineering of Guang Dong Province , School of Chemistry and Chemical Engineering , South China University of Technology , Guangzhou 510641 , P. R. China . ;
| | - Ben Zhong Tang
- State Key Laboratory of Luminescent Materials and Devices , Center for Aggregation-Induced Emission , South China University of Technology , Guangzhou 510640 , China . .,Department of Chemistry , Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and Reconstruction , The Hong Kong University of Science & Technology , Kowloon , Hong Kong , China
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30
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Mao S, Shi X, Soulé J, Doucet H. Pd/C as Heterogeneous Catalyst for the Direct Arylation of (Poly)fluorobenzenes. Chemistry 2019; 25:9504-9513. [DOI: 10.1002/chem.201900921] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2019] [Indexed: 01/25/2023]
Affiliation(s)
- Shuxin Mao
- Univ RennesCNRS, ISCR-UMR 6226 35000 Rennes France
| | - Xinzhe Shi
- Univ RennesCNRS, ISCR-UMR 6226 35000 Rennes France
| | | | - Henri Doucet
- Univ RennesCNRS, ISCR-UMR 6226 35000 Rennes France
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31
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Ramesh V, Devi NS, Velusamy M, Shanmugam S. Catalyst free Synthesis of Highly Functionalized Indolizines from
In Situ
Generated Pyridinium Ylides
via
One‐Pot Multicomponent Reaction. ChemistrySelect 2019. [DOI: 10.1002/slct.201900665] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Affiliation(s)
- Vediyappan Ramesh
- Department of Organic ChemistrySchool of ChemistryMadurai Kamaraj University Madurai - 625 021 India
| | | | - Marappan Velusamy
- Department of ChemistryNorth Eastern Hill University Shillong – 793022 India
| | - Sivakumar Shanmugam
- Department of Organic ChemistrySchool of ChemistryMadurai Kamaraj University Madurai - 625 021 India
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32
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Chen Z, Liang P, Ma X, Luo H, Xu G, Liu T, Wen X, Zheng J, Ye H. Catalyst-Free Annulation of 2-Pyridylacetates and Ynals with Molecular Oxygen: An Access to 3-Acylated Indolizines. J Org Chem 2019; 84:1630-1639. [PMID: 30608171 DOI: 10.1021/acs.joc.8b02883] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
A catalyst and additive-free annulation of 2-pyridylacetates and ynals under molecular oxygen was the first developed, affording 3-acylated indolizines in good to excellent yields. Molecular oxygen was used as the source of the carbonyl oxygen atom in indolizines. This approach was compatible with a wide range of functional groups, and especially it has been successfully extended to unsaturated double bonds and triple bonds, which were difficult to prepare by previous methods in a single step.
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Affiliation(s)
- Zhengwang Chen
- Key Laboratory of Organo-pharmaceutical Chemistry of Jiangxi Province , Gannan Normal University , Ganzhou , 341000 , China.,Hubei Key Laboratory of Processing and Application of Catalytic Materials , Huanggang Normal University , Huanggang , 438000 , China
| | - Pei Liang
- Key Laboratory of Organo-pharmaceutical Chemistry of Jiangxi Province , Gannan Normal University , Ganzhou , 341000 , China
| | - Xiaoyue Ma
- Key Laboratory of Organo-pharmaceutical Chemistry of Jiangxi Province , Gannan Normal University , Ganzhou , 341000 , China
| | - Haiqing Luo
- Key Laboratory of Organo-pharmaceutical Chemistry of Jiangxi Province , Gannan Normal University , Ganzhou , 341000 , China
| | - Guohai Xu
- Key Laboratory of Organo-pharmaceutical Chemistry of Jiangxi Province , Gannan Normal University , Ganzhou , 341000 , China
| | - Tanggao Liu
- Key Laboratory of Organo-pharmaceutical Chemistry of Jiangxi Province , Gannan Normal University , Ganzhou , 341000 , China
| | - Xiaowei Wen
- Key Laboratory of Organo-pharmaceutical Chemistry of Jiangxi Province , Gannan Normal University , Ganzhou , 341000 , China
| | - Jing Zheng
- Key Laboratory of Organo-pharmaceutical Chemistry of Jiangxi Province , Gannan Normal University , Ganzhou , 341000 , China
| | - Hui Ye
- Hubei Key Laboratory of Processing and Application of Catalytic Materials , Huanggang Normal University , Huanggang , 438000 , China
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33
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Zhang Y, Zhang S, Xu G, Li M, Tang C, Fan W. Cu-Catalyzed carbamoylation versus amination of quinoline N-oxide with formamides. Org Biomol Chem 2019; 17:309-314. [DOI: 10.1039/c8ob02844c] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
Carbamoylation and amination of quinoline with formamides was developed via copper-catalyzed C–C and C–N bond formations.
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Affiliation(s)
- Yan Zhang
- School of Pharmaceutical Science
- Jiangnan University
- Wuxi 214122
- P. R. China
| | - Shiwei Zhang
- School of Pharmaceutical Science
- Jiangnan University
- Wuxi 214122
- P. R. China
| | - Guangxing Xu
- School of Pharmaceutical Science
- Jiangnan University
- Wuxi 214122
- P. R. China
| | - Min Li
- School of Pharmaceutical Science
- Jiangnan University
- Wuxi 214122
- P. R. China
| | - Chunlei Tang
- School of Pharmaceutical Science
- Jiangnan University
- Wuxi 214122
- P. R. China
| | - Weizheng Fan
- School of Pharmaceutical Science
- Jiangnan University
- Wuxi 214122
- P. R. China
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34
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Xiao K, Zhu C, Lin M, Song C, Chang J. Base-Promoted Cycloisomerization for the Synthesis of Indolizines and Related Heterocycles. ChemistrySelect 2018. [DOI: 10.1002/slct.201802620] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Ke Xiao
- College of Chemistry and Molecular Engineering; Zhengzhou University; Zhengzhou 450001 China
| | - Congjun Zhu
- College of Chemistry and Molecular Engineering; Zhengzhou University; Zhengzhou 450001 China
| | - Maohua Lin
- College of Chemistry and Molecular Engineering; Zhengzhou University; Zhengzhou 450001 China
| | - Chuanjun Song
- College of Chemistry and Molecular Engineering; Zhengzhou University; Zhengzhou 450001 China
| | - Junbiao Chang
- College of Chemistry and Molecular Engineering; Zhengzhou University; Zhengzhou 450001 China
- Collaborative Innovation Center of New Drug Research and Safety Evaluation Henan Province; Zhengzhou 450001 China
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35
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Behera A, Sau P, Sahoo AK, Patel BK. Cyano-Sacrificial (Arylthio)arylamination of Quinoline and Isoquinoline N-Oxides Using N-(2-(Arylthio)aryl)cyanamides. J Org Chem 2018; 83:11218-11231. [PMID: 30102040 DOI: 10.1021/acs.joc.8b01797] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A copper(I)-catalyzed regioselective arylthio-arylamination of quinoline and isoquinoline N-oxides has been achieved at the expense of a cyano (CN) group from N-(2-(arylthio)aryl)cyanamides. This reductive amination proceeds in one pot at 80 °C in the absence of any additives. This is a unique demonstration of aryl cyanamides serving as arylaminating agents on quinoline/isoquinoline N-oxides with concurrent autoreduction of N-oxide.
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Affiliation(s)
- Ahalya Behera
- Department of Chemistry , Indian Institute of Technology Guwahati , Guwahati - 781039 , India
| | - Prasenjit Sau
- Department of Chemistry , Indian Institute of Technology Guwahati , Guwahati - 781039 , India
| | - Ashish Kumar Sahoo
- Department of Chemistry , Indian Institute of Technology Guwahati , Guwahati - 781039 , India
| | - Bhisma K Patel
- Department of Chemistry , Indian Institute of Technology Guwahati , Guwahati - 781039 , India
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36
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Janardhanan JC, Mishra RK, Das G, Sini S, Jayamurthy P, Suresh CH, Praveen VK, Manoj N, Babu BP. Functionalizable 1H
-Indazoles by Palladium Catalyzed Aza-Nenitzescu Reaction: Pharmacophores to Donor-Acceptor Type Multi-Luminescent Fluorophores. ASIAN J ORG CHEM 2018. [DOI: 10.1002/ajoc.201800413] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Jith C. Janardhanan
- Department of Applied Chemistry; Cochin University of Science and Technology (CUSAT); Cochin 682022 India
| | - Rakesh K. Mishra
- Chemical Science and Technology Division; CSIR-National Institute for Interdisciplinary Science and Technology (CSIR-NIIST); Thiruvanathapuram 695019 India
- Department of Sciences and Humanities; National Institute of Technology, Uttarakhand (NITUK); Srinagar (Garhwal) 246174 India
| | - Gourab Das
- Chemical Science and Technology Division; CSIR-National Institute for Interdisciplinary Science and Technology (CSIR-NIIST); Thiruvanathapuram 695019 India
- Academy of Scientific and Innovative Research (AcSIR); CSIR-NIIST Campus; Thiruvanathapuram 695019 India
| | - Suresh Sini
- Agroprocessing and Technology Division; CSIR-NIIST; Thiruvanathapuram 695019 India
| | - Purushothaman Jayamurthy
- Academy of Scientific and Innovative Research (AcSIR); CSIR-NIIST Campus; Thiruvanathapuram 695019 India
- Agroprocessing and Technology Division; CSIR-NIIST; Thiruvanathapuram 695019 India
| | - Cherumuttathu H. Suresh
- Chemical Science and Technology Division; CSIR-National Institute for Interdisciplinary Science and Technology (CSIR-NIIST); Thiruvanathapuram 695019 India
- Academy of Scientific and Innovative Research (AcSIR); CSIR-NIIST Campus; Thiruvanathapuram 695019 India
| | - Vakayil K. Praveen
- Chemical Science and Technology Division; CSIR-National Institute for Interdisciplinary Science and Technology (CSIR-NIIST); Thiruvanathapuram 695019 India
- Academy of Scientific and Innovative Research (AcSIR); CSIR-NIIST Campus; Thiruvanathapuram 695019 India
| | - Narayanapillai Manoj
- Department of Applied Chemistry; Cochin University of Science and Technology (CUSAT); Cochin 682022 India
| | - Beneesh P. Babu
- Department of Chemistry; National Institute of Technology, Karnataka (NITK); Surathkal 575025 India
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37
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Yin C, Zhong K, Li W, Yang X, Sun R, Zhang C, Zheng X, Yuan M, Li R, Lan Y, Fu H, Chen H. C6
-Selective Direct Arylation of 2-Phenylpyridine via
an Activated N
-methylpyridinium Salt: A Combined Experimental and Theoretical Study. Adv Synth Catal 2018. [DOI: 10.1002/adsc.201800666] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Changzhen Yin
- Key Laboratory of Green Chemistry & Technology, Ministry of Education College of Chemistry; Sichuan University; Chengdu 610064 People's Republic of China
| | - Kangbao Zhong
- School of Chemistry and Chemical Engineering; Chongqing University; Chongqing 400030 People's Republic of China
| | - Wenjing Li
- Key Laboratory of Green Chemistry & Technology, Ministry of Education College of Chemistry; Sichuan University; Chengdu 610064 People's Republic of China
| | - Xiao Yang
- Key Laboratory of Green Chemistry & Technology, Ministry of Education College of Chemistry; Sichuan University; Chengdu 610064 People's Republic of China
| | - Rui Sun
- Key Laboratory of Green Chemistry & Technology, Ministry of Education College of Chemistry; Sichuan University; Chengdu 610064 People's Republic of China
| | - Chunchun Zhang
- Analytical and Testing Center; Sichuan University; Chengdu 610064 People's Republic of China
| | - Xueli Zheng
- Key Laboratory of Green Chemistry & Technology, Ministry of Education College of Chemistry; Sichuan University; Chengdu 610064 People's Republic of China
| | - Maolin Yuan
- Key Laboratory of Green Chemistry & Technology, Ministry of Education College of Chemistry; Sichuan University; Chengdu 610064 People's Republic of China
| | - Ruixiang Li
- Key Laboratory of Green Chemistry & Technology, Ministry of Education College of Chemistry; Sichuan University; Chengdu 610064 People's Republic of China
| | - Yu Lan
- School of Chemistry and Chemical Engineering; Chongqing University; Chongqing 400030 People's Republic of China
| | - Haiyan Fu
- Key Laboratory of Green Chemistry & Technology, Ministry of Education College of Chemistry; Sichuan University; Chengdu 610064 People's Republic of China
| | - Hua Chen
- Key Laboratory of Green Chemistry & Technology, Ministry of Education College of Chemistry; Sichuan University; Chengdu 610064 People's Republic of China
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38
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Ghosh B, Biswas A, Chakraborty S, Samanta R. Rh III -Catalyzed Direct C8-Arylation of Quinoline N-Oxides using Diazonaphthalen-2(1H)-ones: A Practical Approach towards 8-aza BINOL. Chem Asian J 2018; 13:2388-2392. [PMID: 29665279 DOI: 10.1002/asia.201800462] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2018] [Revised: 04/16/2018] [Indexed: 01/18/2023]
Abstract
An efficient RhIII -catalyzed redox-neutral method for the direct C8-arylation of quinoline N-oxides using diazonaphthalen-2(1H)-one as coupling partner has been demonstrated. The developed method is simple, scalable and straightforward with a wide range of substrate scope. The applicative potential was extended with a late-stage functionalization and straightforward synthesis of 8-azaBINOL derivative. A plausible reaction pathway was proposed after carrying out preliminary control studies.
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Affiliation(s)
- Bidhan Ghosh
- Department of Chemistry, Indian Institute of Technology Kharagpur, Kharagpur, 721302, India
| | - Aniruddha Biswas
- Department of Chemistry, Indian Institute of Technology Kharagpur, Kharagpur, 721302, India
| | - Soumen Chakraborty
- Department of Chemistry, Indian Institute of Technology Kharagpur, Kharagpur, 721302, India
| | - Rajarshi Samanta
- Department of Chemistry, Indian Institute of Technology Kharagpur, Kharagpur, 721302, India
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39
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Peng S, Zhao Y, Fu C, Pu X, Zhou L, Huang Y, Lu Z. Acquiring High-Performance Deep-Blue OLED Emitters through an Unexpected Blueshift Color-Tuning Effect Induced by Electron-Donating -OMe Substituents. Chemistry 2018; 24:8056-8060. [PMID: 29655182 DOI: 10.1002/chem.201800974] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2018] [Revised: 04/05/2018] [Indexed: 11/11/2022]
Abstract
A series of blue-emissive 7-(diphenylamino)-4-phenoxycoumarin derivatives bearing -CF3 , -OMe, or -N(Me)2 substituents on the phenoxy subunit were synthesized. Although both the -CF3 and -N(Me)2 modifications were found to trigger redshifted fluorescence, the -OMe substitution was demonstrated to exert an unexpected blueshift color-tuning effect toward the deep-blue region. The reason is that the moderate electron-donating -OMe group can endow coumarins with unaltered HOMO but elevated LUMO energy levels. Moreover, the -OMe substitution was found to be beneficial to the thermal stability of these coumarins. Therefore, the trimethoxy-substituted objective compound can act as a high-performance deep-blue organic light-emitting diode (OLED) emitter, and OLED based on it emits deep-blue light with CIE coordinates of (0.148, 0.084), maximum luminance of 7800 cd m-2 , and maximum external quantum efficiency of 5.1 %. These results not only shed light on the molecular design strategy for high-performance deep-blue OLED emitters through color-tuning, but also show the perspective of coumarin derivatives as deep-blue OLED emitters.
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Affiliation(s)
- Song Peng
- Key Laboratory of Green Chemistry and Technology (Ministry of, Education), College of Chemistry, Sichuan University, Chengdu, 610064, P.R. China
| | - Yihuan Zhao
- Key Laboratory of Green Chemistry and Technology (Ministry of, Education), College of Chemistry, Sichuan University, Chengdu, 610064, P.R. China
| | - Caixia Fu
- Key Laboratory of Green Chemistry and Technology (Ministry of, Education), College of Chemistry, Sichuan University, Chengdu, 610064, P.R. China
| | - Xuemei Pu
- Key Laboratory of Green Chemistry and Technology (Ministry of, Education), College of Chemistry, Sichuan University, Chengdu, 610064, P.R. China
| | - Liang Zhou
- State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, P.R. China
| | - Yan Huang
- Key Laboratory of Green Chemistry and Technology (Ministry of, Education), College of Chemistry, Sichuan University, Chengdu, 610064, P.R. China
| | - Zhiyun Lu
- Key Laboratory of Green Chemistry and Technology (Ministry of, Education), College of Chemistry, Sichuan University, Chengdu, 610064, P.R. China
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40
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Shi X, Mao S, Soulé JF, Doucet H. Reactivity of 1,2,3- and 1,2,4-Trifluorobenzenes in Palladium-Catalyzed Direct Arylation. J Org Chem 2018. [DOI: 10.1021/acs.joc.8b00412] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Xinzhe Shi
- Univ Rennes, CNRS, ISCR-UMR 6226, F-35000 Rennes, France
| | - Shuxin Mao
- Univ Rennes, CNRS, ISCR-UMR 6226, F-35000 Rennes, France
| | | | - Henri Doucet
- Univ Rennes, CNRS, ISCR-UMR 6226, F-35000 Rennes, France
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41
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Jin T, Tang Z, Hu J, Yuan H, Chen Y, Li C, Jia X, Li J. Iron-Catalyzed Aerobic Oxidation and Annulation Reaction of Pyridine and α-Substituted Allenoate toward Functionalized Indolizine. Org Lett 2018; 20:413-416. [DOI: 10.1021/acs.orglett.7b03696] [Citation(s) in RCA: 44] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Tao Jin
- Department
of Chemistry, Shanghai University, 99 Shangda Road, Shanghai 200444, P. R. China
| | - Zhongzhong Tang
- Department
of Chemistry, Shanghai University, 99 Shangda Road, Shanghai 200444, P. R. China
| | - Jie Hu
- Department
of Chemistry, Shanghai University, 99 Shangda Road, Shanghai 200444, P. R. China
| | - Hongdong Yuan
- Department
of Chemistry, Shanghai University, 99 Shangda Road, Shanghai 200444, P. R. China
| | - Yaoyao Chen
- Department
of Chemistry, Shanghai University, 99 Shangda Road, Shanghai 200444, P. R. China
| | - Chunju Li
- Department
of Chemistry, Shanghai University, 99 Shangda Road, Shanghai 200444, P. R. China
| | - Xueshun Jia
- Department
of Chemistry, Shanghai University, 99 Shangda Road, Shanghai 200444, P. R. China
- State
Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, P. R. China
| | - Jian Li
- Department
of Chemistry, Shanghai University, 99 Shangda Road, Shanghai 200444, P. R. China
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42
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Sadowski B, Rode MF, Gryko DT. Direct Arylation of Dipyrrolonaphthyridinediones Leads to Red-Emitting Dyes with Conformational Freedom. Chemistry 2017; 24:855-864. [DOI: 10.1002/chem.201702306] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2017] [Indexed: 01/01/2023]
Affiliation(s)
- Bartłomiej Sadowski
- Institute of Organic Chemistry; Polish Academy of Sciences; Kasprzaka 44/52 01-224 Warsaw Poland
| | - Michał F. Rode
- Institute of Physics; Polish Academy of Sciences; Aleja Lotnikow 32/46 02-668 Warsaw Poland
| | - Daniel T. Gryko
- Institute of Organic Chemistry; Polish Academy of Sciences; Kasprzaka 44/52 01-224 Warsaw Poland
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43
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Biswas A, Karmakar U, Nandi S, Samanta R. Copper-Catalyzed Direct, Regioselective Arylamination of N-Oxides: Studies To Access Conjugated π-Systems. J Org Chem 2017; 82:8933-8942. [DOI: 10.1021/acs.joc.7b01343] [Citation(s) in RCA: 43] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Aniruddha Biswas
- Department of Chemistry, Indian Institute of Technology Kharagpur, Kharagpur 721302, India
| | - Ujjwal Karmakar
- Department of Chemistry, Indian Institute of Technology Kharagpur, Kharagpur 721302, India
| | - Shiny Nandi
- Department of Chemistry, Indian Institute of Technology Kharagpur, Kharagpur 721302, India
| | - Rajarshi Samanta
- Department of Chemistry, Indian Institute of Technology Kharagpur, Kharagpur 721302, India
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44
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Kumpulainen ETT, Högnäsbacka A. Modular Approach to Tricyclic Heterocycles through Copper Catalysis and Functionalization by Palladium-Catalyzed C-H Arylation. European J Org Chem 2017. [DOI: 10.1002/ejoc.201700356] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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45
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Lee JY, Shim JY, Kim HK, Ko D, Baik MH, Yoo EJ. 3,5-Diarylimidazo[1,2-a]pyridines as Color-Tunable Fluorophores. J Org Chem 2017; 82:4352-4361. [PMID: 28350465 DOI: 10.1021/acs.joc.7b00358] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A new protocol for the synthesis of color-tunable fluorescent 3,5-diarylimidazo[1,2-a]pyridines has been achieved via palladium-catalyzed C-H amination of pyridinium zwitterions. Based on experimental results and computational analysis, we extracted a high correlation of photophysical properties with the theoretical concept and predicted emission wavelengths of 3,5-diarylimidazo[1,2-a]pyridines. The emission wavelengths of imidazo[1,2-a]pyridines increase as a function of the electron-withdrawing nature of the substituent on the C5-aryl group of imidazo[1,2-a]pyridine as a result of inductive effects on the LUMO levels. Varying the substituent on the C3-aryl group imidazo[1,2-a]pyridine changes the HOMO levels. Combining these two sites, the HOMO and LUMO levels can be tuned fairly decoupled from each other. This conceptual trend is demonstrated across a series where the C3 and C5 positions were functionalized independently and then utilizes a combination strategy where both sites are used to prepare fluorophores with a large window of emission wavelengths. In view of the biological properties of imidazo[1,2-a]pyridines, the developed method provides an efficient approach for understanding and preparing strongly fluorescent bioprobes.
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Affiliation(s)
- Ju Young Lee
- Department of Chemistry, Kangwon National University , 1 Kangwondaehak-gil, Chuncheon 24341, South Korea
| | - Jae Yul Shim
- Department of Chemistry, Kangwon National University , 1 Kangwondaehak-gil, Chuncheon 24341, South Korea
| | - Hong Ki Kim
- Center for Catalytic Hydrocarbon Functionalizations, Institute for Basic Science (IBS) , Daejeon 34141, South Korea.,Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST) , Daejeon 34141, South Korea
| | - Donguk Ko
- Department of Chemistry, Kangwon National University , 1 Kangwondaehak-gil, Chuncheon 24341, South Korea
| | - Mu-Hyun Baik
- Center for Catalytic Hydrocarbon Functionalizations, Institute for Basic Science (IBS) , Daejeon 34141, South Korea.,Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST) , Daejeon 34141, South Korea
| | - Eun Jeong Yoo
- Department of Chemistry, Kangwon National University , 1 Kangwondaehak-gil, Chuncheon 24341, South Korea
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46
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Rzhevskii SA, Rybakov VB, Khrustalev VN, Babaev EV. Reactions of 5-Indolizyl Lithium Compounds with Some Bielectrophiles. MOLECULES (BASEL, SWITZERLAND) 2017; 22:molecules22040661. [PMID: 28425958 PMCID: PMC6154666 DOI: 10.3390/molecules22040661] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/03/2017] [Revised: 04/09/2017] [Accepted: 04/17/2017] [Indexed: 11/16/2022]
Abstract
Indolizyl-5-lithium anions react with succinic and phtalic anhidrides giving 1,4-keto acids, with oxallyl chloride giving 1,2-diketone, and with ethyl pyruvate giving 1,2-hydroxyacid. However, with α-halocarbonyl compounds, they react in different ways, forming the products of selective bromination at C-5 (with α-bromo ketones and esters of α-bromo acids) and 5-chloroacetyl indolizines.
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Affiliation(s)
- Sergey A Rzhevskii
- Life Sciences Center, Moscow Institute of Physics and Technology, Institutskii per. 9/7, Dolgoprudniy, Moscow Region 141701, Russia.
- Chemistry Department, Moscow State University, Moscow 119991, Russia.
| | - Victor B Rybakov
- Chemistry Department, Moscow State University, Moscow 119991, Russia.
| | - Victor N Khrustalev
- Peoples' Friendship University of Russia (RUDN University), Miklukho-Maklaya str. 6, Moscow 117198, Russia.
| | - Eugene V Babaev
- Life Sciences Center, Moscow Institute of Physics and Technology, Institutskii per. 9/7, Dolgoprudniy, Moscow Region 141701, Russia.
- Chemistry Department, Moscow State University, Moscow 119991, Russia.
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47
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Lepitre T, Le Biannic R, Othman M, Lawson AM, Daïch A. Metal-Free Cascade Approach toward Polysubstituted Indolizines from Chromone-Based Michael Acceptors. Org Lett 2017; 19:1978-1981. [PMID: 28394140 DOI: 10.1021/acs.orglett.7b00309] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
An efficient cascade transformation toward indolizine-based molecules has been developed. This process leads to the rapid construction of two C-N bonds and one C-C bond without the need of any metal catalysis. The approach involves easily accessible chromone-based Michael acceptors and propargylamine derivatives as starting materials. This cascade constitutes a novel and very competitive alternative to the well reported strategies using pyridine or pyrrole derivatives for accessing the indolizine ring with substituents at uncommon C-positions.
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Affiliation(s)
- Thomas Lepitre
- UNILEHAVRE, FR 3038 CNRS, URCOM, Normandie Université , Le Havre, 76600, France.,EA 3221, INC3M CNRS-FR 3038, UFR des Sciences et Techniques, Université du Havre , BP: 1123, 25 rue Philipe Lebon, F-76063 Le Havre Cedex, France
| | - Raphael Le Biannic
- UNILEHAVRE, FR 3038 CNRS, URCOM, Normandie Université , Le Havre, 76600, France.,EA 3221, INC3M CNRS-FR 3038, UFR des Sciences et Techniques, Université du Havre , BP: 1123, 25 rue Philipe Lebon, F-76063 Le Havre Cedex, France
| | - Mohamed Othman
- UNILEHAVRE, FR 3038 CNRS, URCOM, Normandie Université , Le Havre, 76600, France.,EA 3221, INC3M CNRS-FR 3038, UFR des Sciences et Techniques, Université du Havre , BP: 1123, 25 rue Philipe Lebon, F-76063 Le Havre Cedex, France
| | - Ata Martin Lawson
- UNILEHAVRE, FR 3038 CNRS, URCOM, Normandie Université , Le Havre, 76600, France.,EA 3221, INC3M CNRS-FR 3038, UFR des Sciences et Techniques, Université du Havre , BP: 1123, 25 rue Philipe Lebon, F-76063 Le Havre Cedex, France
| | - Adam Daïch
- UNILEHAVRE, FR 3038 CNRS, URCOM, Normandie Université , Le Havre, 76600, France.,EA 3221, INC3M CNRS-FR 3038, UFR des Sciences et Techniques, Université du Havre , BP: 1123, 25 rue Philipe Lebon, F-76063 Le Havre Cedex, France
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48
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Facile one-pot tandem synthesis of perfluoroalkylated indolizines under metal-free mild conditions. Tetrahedron 2017. [DOI: 10.1016/j.tet.2017.01.005] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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49
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Nakayama A, Nishio S, Otani A, Mera A, Osawa A, Tanino K, Namba K. Substituent Effect at the C4-Position of 1,3a,6a-Triazapentalene. Chem Pharm Bull (Tokyo) 2017; 64:830-7. [PMID: 27373639 DOI: 10.1248/cpb.c16-00196] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Various 2,4-disubstituted-1,3a,6a-triazapentalenes possessing methyl and phenyl groups at the C4-position were synthesized. Fluorescence observation of the synthetic 4-methyl- and 4-phenyl-1,3a,6a-triazapentalenes revealed that the introduction of a substituent at the C4-position allowed a long-wavelength shift of the fluorescence maximum. Furthermore, the phenyl group at the C4-position was found to induce a substantial increase in the extinction coefficient value.
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50
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Hfaiedh A, Ben Ammar H, Soulé JF, Doucet H. Palladium-catalyzed regioselective C–H bond arylations at the C3 position of ortho-substituted fluorobenzenes. Org Biomol Chem 2017; 15:7447-7455. [DOI: 10.1039/c7ob01689a] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We report herein the palladium-catalyzed C–H bond arylation of fluorobenzene derivatives at the ortho-position to the fluorine atom. Bromo, chloro or methoxy substituents at the fluorobenzenyl ortho-position can be used to increase the reactivity of the C–H bond at the C3 position.
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Affiliation(s)
- Anoir Hfaiedh
- UMR 6226 CNRS-Université de Rennes 1 “Organométalliques
- Matériaux et Catalyse”
- 35042 Rennes
- France
- Université de Tunis El Manar
| | - Hamed Ben Ammar
- Laboratoire de Synthèse Organique Asymétrique et Catalyse Homogène (UR 11ES56)
- Université de Monastir
- Faculté des Sciences de Monastir
- Monastir 5000
- Tunisia
| | - Jean-François Soulé
- UMR 6226 CNRS-Université de Rennes 1 “Organométalliques
- Matériaux et Catalyse”
- 35042 Rennes
- France
| | - Henri Doucet
- UMR 6226 CNRS-Université de Rennes 1 “Organométalliques
- Matériaux et Catalyse”
- 35042 Rennes
- France
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