1
|
Enamines and their variants as intermediates for synthesis of aza-heterocycles with applications in MCRs. Tetrahedron 2022. [DOI: 10.1016/j.tet.2021.132545] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
|
2
|
Hussein EM, El Guesmi N, Ahmed SA. Exploiting a multicomponent domino reaction strategy for the tailoring of versatile environmentally sensitive fluorophore-based nicotinonitriles incorporating pyrene and fluorene moieties. RSC Adv 2019; 9:40118-40130. [PMID: 35541404 PMCID: PMC9076224 DOI: 10.1039/c9ra09379f] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2019] [Accepted: 11/21/2019] [Indexed: 01/02/2023] Open
Abstract
A simplistic and highly effective protocol for the synthesis of a new class of poly-functionalized innovative nicotinonitriles incorporating pyrene and/or fluorene moieties has been developed through the domino four-component condensation reaction of 1-(pyren-1-yl)ethanone/1-(9H-fluoren-2-yl)ethanone, numerous aromatic aldehydes, and 3-oxo-3-(pyren-1-yl)propanenitrile/3-(9H-fluoren-2-yl)-3-oxopropanenitrile and ammonium acetate in acetic acid as a reaction medium. The advantages of this approach are the short reaction time, excellent yield, and the easy experimental workup that affords substrate diversity and operative competence under metal-free reaction conditions for the formation of C–C and C–N bonds. The substituent effects on the photophysical property-based absorption and the emission of the synthesized compounds in dichloromethane have been well-investigated. Strong absorption quenching of around 100 nm was observed when substitution of the benzene ring at the C4-position of the pyridine moiety occurred with an electron-donating (–N(CH3)2) group. All of the newly synthesized nicotinonitrile derivatives showed strong blue-green fluorescence emission with maxima in the range between 420–630 nm. These highly pronounced emission spectra will help this family of compounds to find application in many areas and the field of materials science. A simplistic and highly effective protocol for the synthesis of a new class of poly-functionalized innovative nicotinonitriles incorporating pyrene and/or fluorene moieties has been developed through the domino four-component condensation reaction.![]()
Collapse
Affiliation(s)
- Essam M Hussein
- Chemistry Department, Faculty of Applied Science, Umm Al-Qura University 21955 Makkah Saudi Arabia .,Department of Chemistry, Faculty of Science, Assiut University 71516 Assiut Egypt
| | - Nizar El Guesmi
- Chemistry Department, Faculty of Applied Science, Umm Al-Qura University 21955 Makkah Saudi Arabia .,Département de Chimie, Faculté des Sciences de Monastir, Avenue de L'Environnement 5019 Monastir Tunisia
| | - Saleh A Ahmed
- Chemistry Department, Faculty of Applied Science, Umm Al-Qura University 21955 Makkah Saudi Arabia .,Department of Chemistry, Faculty of Science, Assiut University 71516 Assiut Egypt
| |
Collapse
|
3
|
New Push-Pull Fluorophores on the Basis of 6-Alkoxy-2,2'-Bipyridines: Rational Synthetic Approach and Photophysical Properties. Chem Heterocycl Compd (N Y) 2019. [DOI: 10.1007/s10593-019-02495-5] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
|
4
|
A one-pot four-component domino protocol for the synthesis of indole and coumarin containing pyridine-3-carbonitrile derivatives. MONATSHEFTE FUR CHEMIE 2019. [DOI: 10.1007/s00706-019-2365-5] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
|
5
|
Muthu M, Vishnu Priya R, Almansour AI, Suresh Kumar R, Kumar RR. Synthesis of indole-cycloalkyl[ b]pyridine hybrids via a four-component six-step tandem process. Beilstein J Org Chem 2018; 14:2907-2915. [PMID: 30546474 PMCID: PMC6278771 DOI: 10.3762/bjoc.14.269] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2018] [Accepted: 11/09/2018] [Indexed: 01/01/2023] Open
Abstract
The one-pot four-component reaction of 3-(1H-indol-3-yl)-3-oxopropanenitriles, aromatic aldehydes, cycloalkanones and ammonium acetate occurred via a six-step tandem Knoevenagel condensation–nucleophilic addition to carbonyl–Michael addition–N-cyclization–elimination–air oxidation sequence to afford structurally intriguing indole–cycloalkyl[b]pyridine-3-carbonitrile hybrid heterocycles in excellent yields.
Collapse
Affiliation(s)
- Muthumani Muthu
- Department of Organic Chemistry, School of Chemistry, Madurai Kamaraj University, Madurai 625 021, Tamil Nadu, India
| | | | - Abdulrahman I Almansour
- Department of Chemistry, College of Science, King Saud University, Riyadh 11451, Saudi Arabia
| | - Raju Suresh Kumar
- Department of Chemistry, College of Science, King Saud University, Riyadh 11451, Saudi Arabia
| | - Raju Ranjith Kumar
- Department of Organic Chemistry, School of Chemistry, Madurai Kamaraj University, Madurai 625 021, Tamil Nadu, India
| |
Collapse
|
6
|
Bayat M, Amiri Z. Catalyst-free Synthesis of Tetrahydroacenaphtho[1,2- b
]indolone Derivatives via
One-pot Four-component Reaction. J Heterocycl Chem 2018. [DOI: 10.1002/jhet.3167] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Mohammad Bayat
- Department of Chemistry, Faculty of Science; Imam Khomeini International University; Qazvin Iran
| | - Zeinab Amiri
- Department of Chemistry, Faculty of Science; Imam Khomeini International University; Qazvin Iran
| |
Collapse
|
7
|
Synthesis of New (E)-2-(1 H-Indole-3-ylcarbonyl)-3-heteroaryl-acrylonitriles via Microwave-Assisted Knoevenagel Condensation. J CHEM-NY 2017. [DOI: 10.1155/2017/8418930] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Given the broad spectrum of biological uses of heteroaryl-acrylonitrile derivatives, it is necessary to find simple methods to synthesize and diversify this family of compounds. We report a stereoselective synthesis of a series of new (E)-2-(1H-indole-3-ylcarbonyl)-3-heteroaryl-acrylonitriles (3a–3i) obtained from 3-(cyanoacetyl)indole and heteroaryl-aldehydes under microwave-assisted Knoevenagel reaction at 300 W of potency and 100°C. The desired derivatives (3a–3i) were obtained with variable yields (30–94%) and time reactions (8–90 min). All the heteroaryl-acrylonitriles were characterized by physicoanalytical techniques such IR, 1H, 13C NMR, and electrospray mass spectrometry.
Collapse
|
8
|
SnCl2·2H2O as a precatalyst in MCR: synthesis of pyridine derivatives via a 4-component reaction in water. Tetrahedron Lett 2015. [DOI: 10.1016/j.tetlet.2015.06.008] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
|
9
|
Kianmehr E, Faghih N, Khan KM. Palladium-Catalyzed Regioselective Benzylation–Annulation of Pyridine N-Oxides with Toluene Derivatives via Multiple C–H Bond Activations: Benzylation versus Arylation. Org Lett 2015; 17:414-7. [DOI: 10.1021/ol503238a] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- Ebrahim Kianmehr
- School
of Chemistry, College of Science, University of Tehran, Tehran 1417614411, Iran
| | - Nasser Faghih
- School
of Chemistry, College of Science, University of Tehran, Tehran 1417614411, Iran
| | - Khalid Mohammed Khan
- H.
E. J. Research Institute of Chemistry, International Center for Chemical
and Biological Sciences, University of Karachi, Karachi 75270, Pakistan
| |
Collapse
|
10
|
Kankala S, Pagadala R, Maddila S, Vasam CS, Jonnalagadda SB. Silver(i)–N-heterocyclic carbene catalyzed multicomponent reactions: a facile synthesis of multisubstituted pyridines. RSC Adv 2015. [DOI: 10.1039/c5ra16582b] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
A room temperature four component reaction between aromatic aldehydes, CH2(CN)2and NH4OAc with ketones mediated by Ag(i)–NHC pre-catalysts to produce multisubstituted pyridines in a short reaction time in eco-friendly ethanol was described.
Collapse
Affiliation(s)
- Shravankumar Kankala
- School of Chemistry & Physics
- University of Kwazulu-Natal
- Westville Campus
- Durban-4000
- South Africa
| | - Ramakanth Pagadala
- School of Chemistry & Physics
- University of Kwazulu-Natal
- Westville Campus
- Durban-4000
- South Africa
| | - Suresh Maddila
- School of Chemistry & Physics
- University of Kwazulu-Natal
- Westville Campus
- Durban-4000
- South Africa
| | - Chandra Sekhar Vasam
- Department of Chemistry
- Satavahana University
- Karimnagar
- India
- Department of Pharmaceutical Chemistry
| | | |
Collapse
|
11
|
Allais C, Grassot JM, Rodriguez J, Constantieux T. Metal-Free Multicomponent Syntheses of Pyridines. Chem Rev 2014; 114:10829-68. [DOI: 10.1021/cr500099b] [Citation(s) in RCA: 363] [Impact Index Per Article: 36.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Christophe Allais
- Aix Marseille Université, Centrale Marseille, CNRS, iSm2 UMR 7313, 13397 MARSEILLE, France
| | - Jean-Marie Grassot
- Aix Marseille Université, Centrale Marseille, CNRS, iSm2 UMR 7313, 13397 MARSEILLE, France
| | - Jean Rodriguez
- Aix Marseille Université, Centrale Marseille, CNRS, iSm2 UMR 7313, 13397 MARSEILLE, France
| | - Thierry Constantieux
- Aix Marseille Université, Centrale Marseille, CNRS, iSm2 UMR 7313, 13397 MARSEILLE, France
| |
Collapse
|
12
|
Zhang JJ, Feng X, Liu XC, Huang ZB, Shi DQ. An efficient three-component synthesis of highly functionalized tetrahydroacenaphtho[1,2- $$b$$ b ]indolone derivatives catalyzed by L-proline. Mol Divers 2014; 18:727-36. [DOI: 10.1007/s11030-014-9544-4] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2014] [Accepted: 08/12/2014] [Indexed: 01/09/2023]
|
13
|
Microwave assisted InCl3 mediated regioselective synthesis of highly functionalized indolylpyran under solvent-free condition and its chemical transformation to indolyltriazolylpyran hybrids. Tetrahedron Lett 2014. [DOI: 10.1016/j.tetlet.2014.04.104] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
|
14
|
Fadda AA, El-Mekabaty A, Mousa IA, Elattar KM. Chemistry of 3-(1H-Indol-3-yl)-3-oxopropanenitrile. SYNTHETIC COMMUN 2014. [DOI: 10.1080/00397911.2013.861915] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
|
15
|
Fatma S, Singh D, Ankit P, Mishra P, Singh M, Singh J. An eco-compatible multicomponent strategy for the synthesis of new 2-amino-6-(1H-indol-3-yl)-4-arylpyridine-3,5-dicarbonitriles in aqueous micellar medium promoted by thiamine-hydrochloride. Tetrahedron Lett 2014. [DOI: 10.1016/j.tetlet.2014.02.050] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
|
16
|
Lakshmi NV, Kiruthika SE, Perumal P. Multicomponent assembly of 2-amino-4-substituted 4H-chromenes using cyclic Michael donors. CAN J CHEM 2013. [DOI: 10.1139/cjc-2012-0552] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
An efficient one-pot synthesis has been disclosed to access a series of 2-amino-4-substituted 4H-chromenes from salicylaldehyde, malononitrile, and a few cyclic nucleophiles using indium trichloride as a catalyst. This methodology affords high yields of products in a shorter reaction time.
Collapse
Affiliation(s)
- Neelakandan Vidhya Lakshmi
- Organic Chemistry Division, CSIR-Central Leather Research Institute, Adyar, Chennai, 600020 Tamilnadu, India
| | - Selvarangam E. Kiruthika
- Organic Chemistry Division, CSIR-Central Leather Research Institute, Adyar, Chennai, 600020 Tamilnadu, India
| | - P.T. Perumal
- Organic Chemistry Division, CSIR-Central Leather Research Institute, Adyar, Chennai, 600020 Tamilnadu, India
| |
Collapse
|
17
|
Wang HY, Shi DQ. Efficient synthesis of functionalized dihydro-1H-indol-4(5H)-ones via one-pot three-component reaction under catalyst-free conditions. ACS COMBINATORIAL SCIENCE 2013; 15:261-6. [PMID: 23597107 DOI: 10.1021/co4000198] [Citation(s) in RCA: 70] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A facile and efficient one-pot procedure for the preparation of functionalized dihydro-1H-indol-4(5H)-ones by a catalyst-free, three-component reaction of 1,3-dicarbonyl compounds, arylglyoxal monohydrate and enaminones under mild conditions in excellent yield is reported. This synthesis was confirmed to follow the group-assisted-purification (GAP) chemistry process, which can avoid traditional purifications, chromatography, and recrystallization.
Collapse
Affiliation(s)
- Hui-Yan Wang
- Key Laboratory of Organic Synthesis
of Jiangsu Province, College of Chemistry, Chemical Engineering and
Materials Science, Soochow University,
Suzhou 215123, P.R. China
- Department of Chemical Engineering, Huaihai Institute of Technology, Lianyungang 222005, P.R. China
| | - Da-Qing Shi
- Key Laboratory of Organic Synthesis
of Jiangsu Province, College of Chemistry, Chemical Engineering and
Materials Science, Soochow University,
Suzhou 215123, P.R. China
| |
Collapse
|
18
|
|
19
|
A new and facile access to the 2-(indol-3-yl)-3-nitriloquinolines based on Friedländer annulations. Tetrahedron 2012. [DOI: 10.1016/j.tet.2012.05.006] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
20
|
Affiliation(s)
- Morteza Shiri
- Department of Chemistry, Faculty of Science, Alzahra University, Vanak, Tehran, Iran.
| |
Collapse
|
21
|
Liu JY, Zhang H, Feng BM, Jiang B, Wang SL, Tu SJ. A multicomponent synthetic strategy for two-carbon-tethered 1,3-oxathiole–indole pairs. Org Biomol Chem 2012; 10:5036-8. [DOI: 10.1039/c2ob25817j] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Affiliation(s)
- Jia-Yan Liu
- School of Chemistry and Chemical Engineering, and Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials, Jiangsu Normal University, Xuzhou, 211116, P.R. China
| | | | | | | | | | | |
Collapse
|
22
|
Ram Reddy T, Rajeshwar Reddy G, Srinivasula Reddy L, Jammula S, Lingappa Y, Kapavarapu R, Meda CLT, Parsa KVL, Pal M. Montmorillonite K-10 mediated green synthesis of cyano pyridines: Their evaluation as potential inhibitors of PDE4. Eur J Med Chem 2011; 48:265-74. [PMID: 22217868 DOI: 10.1016/j.ejmech.2011.12.024] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2011] [Revised: 12/12/2011] [Accepted: 12/15/2011] [Indexed: 12/20/2022]
Abstract
An efficient and green synthesis of functionalized cyano pyridines has been achieved via montmorillonite K-10 mediated multi-component reaction in a chemo- and regioselective manner. The four-component reaction of β-keto ester, arylaldehyde, malononitrile and an alcohol provided a variety of pyridine derivatives and montmorillonite K-10 was found to be a reusable catalyst. The potential of this operationally simple methodology has been demonstrated in further structure elaboration of a compound synthesized via C-C bond forming reactions under Suzuki, Sonogashira and Heck conditions. Some of the cyano pyridines synthesized showed PDE4B inhibitory properties in vitro and good interactions with PDE4B protein in silico suggesting cyano pyridine scaffold as a potential template for the discovery of novel PDE4 inhibitors.
Collapse
Affiliation(s)
- T Ram Reddy
- Custom Pharmaceutical Services, Dr. Reddy's Laboratories Limited, Bollaram Road Miyapur, Hyderabad 500 049, India
| | | | | | | | | | | | | | | | | |
Collapse
|
23
|
Lu GP, Cai C. Synthesis of a Series of Highly Substituted Cyclohexanols via Michael Addition in an Aqueous Medium. JOURNAL OF CHEMICAL RESEARCH 2011. [DOI: 10.3184/174751911x12977065405044] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
The Michael addition of active methylene compounds or nitromethane to chalcones in an aqueous medium and catalysed by tetrabutyl ammonium hydroxide (TBAOH) to afford highly substituted cyclohexanols is described. The protocol provides an efficient route for the synthesis of highly substituted cyclohexanols, with short reaction time, and a range of different substrates in the absence of toxic organic solvents.
Collapse
Affiliation(s)
- Guo-ping Lu
- College of Chemical Engineering, Nanjing University of Science & Technology, Nanjing 210094, P. R. China
| | - Chun Cai
- College of Chemical Engineering, Nanjing University of Science & Technology, Nanjing 210094, P. R. China
| |
Collapse
|
24
|
Synthesis and anti-inflammatory activity of 3-indolyl pyridine derivatives through one-pot multi component reaction. J CHEM SCI 2010. [DOI: 10.1007/s12039-010-0070-3] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
|
25
|
Geng LJ, Feng GL, Yu JG. Synthesis of 2-(1H-indol-3-yl)Pyridine Derivatives Through Multicomponent Reaction. JOURNAL OF CHEMICAL RESEARCH 2010. [DOI: 10.3184/030823410x12863016030919] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
A straightforward and practical approach is established for the synthesis of 2-(1 H-indol-3-yl)pyridine derivatives achieved through the one-pot three-component reaction of chalcone, 3-(2-cyanoacetyl)-1 H-indole and ammonium acetate. This method offers several advantages such as short reaction time, high yields, and simple procedure.
Collapse
Affiliation(s)
- Li-Jun Geng
- Department of Chemistry, School of Science, Tianjin University, Weijin Road, Tianjin 300072, P. R. China
- School of Science, Hebei University of Science and Technology, Yuhua East Road, Shijiazhuang 050018, P. R. China
| | - Guo-Liang Feng
- School of Science, Hebei University of Science and Technology, Yuhua East Road, Shijiazhuang 050018, P. R. China
| | - Jiu-Gao Yu
- Department of Chemistry, School of Science, Tianjin University, Weijin Road, Tianjin 300072, P. R. China
| |
Collapse
|
26
|
Damodiran M, Perumal PT. Synthesis of substituted 1,3-oxazines using sulfamic acid as an efficient and eco-friendly catalyst. J Heterocycl Chem 2010. [DOI: 10.1002/jhet.489] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
|
27
|
Lakshmi NV, Thirumurugan P, Noorulla KM, Perumal PT. InCl3 mediated one-pot multicomponent synthesis, anti-microbial, antioxidant and anticancer evaluation of 3-pyranyl indole derivatives. Bioorg Med Chem Lett 2010; 20:5054-61. [PMID: 20675130 DOI: 10.1016/j.bmcl.2010.07.039] [Citation(s) in RCA: 48] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2010] [Revised: 07/08/2010] [Accepted: 07/09/2010] [Indexed: 10/19/2022]
Abstract
A simple and convenient method for the one-pot three-component synthesis of 3-pyranyl indoles has been accomplished by tandem Knoevenagel-Michael reaction of 3-cyanoacetyl indole, various aromatic aldehydes and malononitrile catalyzed by InCl(3) in ethanol under reflux conditions. The newly synthesized 3-pyranyl indoles were evaluated for anti-microbial, antioxidant, and anticancer activities. Some of the compounds showed good anticancer activity against MCF-7 breast cancer cell lines on comparison with of standard drug.
Collapse
|
28
|
One-pot multicomponent synthesis and anti-microbial evaluation of 2′-(indol-3-yl)-2-oxospiro(indoline-3,4′-pyran) derivatives. Bioorg Med Chem Lett 2010; 20:4252-8. [DOI: 10.1016/j.bmcl.2010.05.025] [Citation(s) in RCA: 97] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2010] [Revised: 04/21/2010] [Accepted: 05/11/2010] [Indexed: 11/22/2022]
|
29
|
Thirumurugan P, Nandakumar A, Vidhya Lakshmi N, Phani Kumar BVN, Perumal PT. Synthesis and NMR spectral assignments of indol-3-yl pyridines through one-pot multi-component reaction. MAGNETIC RESONANCE IN CHEMISTRY : MRC 2010; 48:554-561. [PMID: 20535775 DOI: 10.1002/mrc.2616] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
Asimple protocol for the efficient preparation of 6-(ferrocene-1-yl)-2-(indol-3-yl)pyridine and 2-(1H-indol-3-yl)-6-(2-thienyl)pyridine derivatives has been achieved through multi-component reaction, and these compounds were thoroughly characterised by 2D NMR spectral techniques.
Collapse
Affiliation(s)
- Prakasam Thirumurugan
- Organic Chemistry Division, Central Leather Research Institute, Adyar, Chennai 600 020, India
| | | | | | | | | |
Collapse
|
30
|
Bhaskar G, Saikumar C, Perumal P. Indium(III) bromide-catalyzed hydroarylation of alkynes with indoles. Tetrahedron Lett 2010. [DOI: 10.1016/j.tetlet.2010.04.036] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
|
31
|
Xin X, Wang Y, Kumar S, Liu X, Lin Y, Dong D. Efficient one-pot synthesis of substituted pyridines through multicomponent reaction. Org Biomol Chem 2010; 8:3078-82. [DOI: 10.1039/c001117g] [Citation(s) in RCA: 53] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
32
|
Thirumurugan P, Nandakumar A, Muralidharan D, Perumal PT. Simple and Convenient Approach to the Kr€ohnke Pyridine Type Synthesis of Functionalized Indol-3-yl Pyridine Derivatives Using 3-Cyanoacetyl Indole. ACTA ACUST UNITED AC 2009; 12:161-7. [DOI: 10.1021/cc9001394] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Prakasam Thirumurugan
- Organic Chemistry Division, Central Leather Research Institute, Adyar, Chennai, 600020 Tamilnadu, India
| | - A. Nandakumar
- Organic Chemistry Division, Central Leather Research Institute, Adyar, Chennai, 600020 Tamilnadu, India
| | - D. Muralidharan
- Organic Chemistry Division, Central Leather Research Institute, Adyar, Chennai, 600020 Tamilnadu, India
| | - Paramasivan T. Perumal
- Organic Chemistry Division, Central Leather Research Institute, Adyar, Chennai, 600020 Tamilnadu, India
| |
Collapse
|