1
|
Banerjee M, Panjikar PC, Das D, Iyer S, Bhosle AA, Chatterjee A. Grindstone chemistry: A “green” approach for the synthesis and derivatization of heterocycles. Tetrahedron 2022. [DOI: 10.1016/j.tet.2022.132753] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
|
2
|
Abstract
The advent of multicomponent reactions in the synthesis of heterocycles and their ever burgeoning applications in drug development, materials chemistry, and catalysis, have attracted a great deal of current scientific interest. In particular, the metal-free multicomponent synthesis of six membered N-heterocycles has undergone intensive research over the last two decades offering an environmentally benevolent means contrary to traditional metal catalysed reactions. To the best of our knowledge, there exists no exclusive review on the metal-free multicomponent synthesis of six membered N-heterocyles, and hence the present report highlights the progress on metal-free multicomponent reactions with their advantages and mechanistic insights to access monocyclic six-membered N-heterocycles including pyridine, pyrimidine, pyrazine, triazine and their hydrogenated derivatives. The literature is covered since 2000, and the contents offer not only striking methods for divergent synthesis of six-membered N-heterocycles but also put forward some new insights into the exploration of metal-free multicomponent chemistry.
Collapse
Affiliation(s)
- Preeti
- Department of Chemistry, Institute of Science, Banaras Hindu University, Varanasi-221005, India.
| | - Krishna Nand Singh
- Department of Chemistry, Institute of Science, Banaras Hindu University, Varanasi-221005, India.
| |
Collapse
|
3
|
Maury SK, Kumari S, Kushwaha AK, Kamal A, Singh HK, Kumar D, Singh S. Grinding induced catalyst free, multicomponent synthesis of Indoloindole pyrimidine. Tetrahedron Lett 2020. [DOI: 10.1016/j.tetlet.2020.152383] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
|
4
|
Suresh S, Das S, Waidha K, Maity R, Basu B, Rajendran S. Multi‐Component Approach for Synthesis of Quinolinyl‐1,4‐dihydropyridines, Evaluation of Cytotoxicity against MCF7 and Molecular Docking Studies. ChemistrySelect 2020. [DOI: 10.1002/slct.202002612] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Selvendran Suresh
- Chemistry Division School of Advanced Sciences Vellore Institute of Technology Chennai Campus Chennai 600127 Tamilnadu India
| | - Souvik Das
- Department of Neuroendocrinology and Experimental Hematology Chittaranjan National Cancer Institute Kolkata 700 026 West Bengal India
| | - Kamran Waidha
- Amity Institute of Biotechnology Amity University Uttar Pradesh Sector-125 Noida India
| | - Ritwik Maity
- Center for Research in Nanoscience and Nanotechnology University of Calcutta Kolkata 700106 India
- Current affiliation Department of Biochemistry and Molecular and Cellular Biology University of Zaragoza-50009 Spain
| | - Biswarup Basu
- Department of Neuroendocrinology and Experimental Hematology Chittaranjan National Cancer Institute Kolkata 700 026 West Bengal India
| | - Saravanakumar Rajendran
- Chemistry Division School of Advanced Sciences Vellore Institute of Technology Chennai Campus Chennai 600127 Tamilnadu India
| |
Collapse
|
5
|
Abstract
Pyrroles are the most prevalent heterocyclic compounds, which are present as the basic cores in
many natural products, such as vitamin B12, bile pigments like bilirubin and biliverdin, the porphyrins of
heme, chlorophyll, chlorins, bacteriochlorins, and porphyrinogens. The biological activities of compounds
having pyrrole analogs include antimicrobial (antibacterial, antifungal), anti-cancer (anti-cytotoxic, antimitotic),
anti-tumor, anti-hyperlipidemic, anti-depressant, anti-inflammatory, antihyperglycemic, antiproliferative,
anti-HIV and anti-viral activities. Accordingly, significant attention has been paid to develop competent
methods for the synthesis of pyrroles with improved yields in short times. This review gives an overview of
different methods for the synthesis of pyrrole using easily available precursors using the following routes.
Synthesis of monosubstituted pyrrole using 2,5-dimethoxyfuran
Synthesis of pyrrole using dialkylacetylene dicarboxylate
Synthesis of pyrroles using β-ketoester
Synthesis of pyrrole using 1,2-dicarbonyl compounds
Synthesis of pyrroles using 1,3-dicarbonyl compounds
Synthesis of pyrroles using 1,3-dicarbonyl, amine, nitro and aldehyde group
Synthesis of pyrroles using 1,4-dicarbonyl compound and amines
Synthesis of pyrrole using enones
Synthesis of pyrroles using moieties having acetylene group
Collapse
Affiliation(s)
- Sarosh Iqbal
- Department of Applied Chemistry, Government College University, Faisalabad-38000, Faisalabad, Pakistan
| | - Hina Rasheed
- Department of Applied Chemistry, Government College University, Faisalabad-38000, Faisalabad, Pakistan
| | - Rabiya Javed Awan
- Department of Applied Chemistry, Government College University, Faisalabad-38000, Faisalabad, Pakistan
| | - Ramsha Javed Awan
- Department of Applied Chemistry, Government College University, Faisalabad-38000, Faisalabad, Pakistan
| | - Asma Mukhtar
- Department of Chemistry and Chemical Engineering, Syed Babar Ali School of Science and Engineering Lahore University of Management Sciences, Lahore-54792, Lahore, Pakistan
| | - Mark G. Moloney
- Department of Chemistry, Chemistry Research Laboratory, The University of Oxford, 12 Mansfield Road, Oxford OX1 3TA, United Kingdom
| |
Collapse
|
6
|
Anary-Abbasinejada M, Nezhad-Shshrokhabadi F, Mohammadi M. A green method for the synthesis of pyrrole derivatives using arylglyoxals, 1,3-diketones and enaminoketones in water or water-ethanol mixture as solvent. Mol Divers 2019; 24:1205-1222. [PMID: 31485891 DOI: 10.1007/s11030-019-09984-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2019] [Accepted: 07/31/2019] [Indexed: 11/30/2022]
Abstract
Three-component reaction between arylglyoxals, 1,3-dicetones and enaminoketones leads to new polyfunctionalized tetraone derivatives which may be easily converted to polyfunctionalized pyrroles. Reactions were conducted in water or water-ethanol mixture as green solvents, and all products were isolated by simple washing of the resulting solids with diethyl ether.
Collapse
|
7
|
Xie Z, Song Y, Xu L, Guo Y, Zhang M, Li L, Chen K, Liu X. Rapid Synthesis of N-Tosylhydrazones under Solvent-Free Conditions and Their Potential Application Against Human Triple-Negative Breast Cancer. ChemistryOpen 2018; 7:977-983. [PMID: 30524923 PMCID: PMC6276103 DOI: 10.1002/open.201800206] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2018] [Indexed: 11/08/2022] Open
Abstract
Some N-tosylhydrazone derivatives were effectively synthesized under solvent-free conditions by using a grinding method at room temperature. The short reaction time, clean and mild process with simple workup and easy purification of the target compounds were salient features of the present protocol, which enables straightforward access to N-tosylhydrazones. Among the tosylhydrazone derivatives evaluated, compound 3 l exhibits excellent apoptosis-promoting and anticancer potential against triple-negative breast cancer (TNBC) cell lines. This research shows that our synthesized compound 3 l may be a desirable and effective therapeutic drug against TNBC.
Collapse
Affiliation(s)
- Zengyang Xie
- College of Basic Medicine Jining Medical University Jining 272067 China
| | - Yuying Song
- College of Basic Medicine Jining Medical University Jining 272067 China
| | - Lujia Xu
- College of Basic Medicine Jining Medical University Jining 272067 China
| | - Yukun Guo
- College of Basic Medicine Jining Medical University Jining 272067 China
| | - Min Zhang
- College of Basic Medicine Jining Medical University Jining 272067 China
| | - Limei Li
- College of Basic Medicine Jining Medical University Jining 272067 China
| | - Kai Chen
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics, and Gene Regulation, Sun Yat-Sen Memorial Hospital Sun Yat-Sen University Guangzhou 510275 China.,Breast Tumor Center, Sun Yat-sen Memorial Hospital Sun Yat-Sen University Guangzhou 510275 China
| | - Xue Liu
- College of Basic Medicine Jining Medical University Jining 272067 China
| |
Collapse
|
8
|
Yang J, Zhou P, Hu B, Zhao S, Zhang Q, Xu L, Yang R, Yu F. TBAI/K 2 S 2 O 8 ‐Promoted Multicomponent Domino Reaction of Aryl Methyl Ketones, Enaminones, and Indoles: A Facile Access to Multisubstituted 3‐Indolyl‐pyrroles. ChemistrySelect 2018; 3:11938-42. [DOI: 10.1002/slct.201803317] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
|
9
|
Azad I, Hassan F, `Saquib M, Ahmad N, Rahman Khan A, G.Al-Sehemi A, Nasibullah M. A Critical Review on Advances in the Multicomponent Synthesis of Pyrroles. ACTA ACUST UNITED AC 2018. [DOI: 10.13005/ojc/340401] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Nitrogen containing heterocyclic compounds are biologically significant molecules. This is especially true for pyrrole a five membered nitrogen containing aromatic molecule, which is present as a key structural motif in a large number of drugs and lead molecules. This review aims to provide an overview of the multi-component reaction (MCR) based methodologies used for the synthesis of pyrrole and its derivatives, focusing particularly on eco-friendly methods that avoid the use of hazardous reagents, solvents and catalysts are deemed especially relevant to the disciplines of medicinal chemistry and drug discovery.
Collapse
Affiliation(s)
- Iqbal Azad
- Department of Chemistry, Integral University, Lucknow-226026, India
| | - Firoj Hassan
- Department of Chemistry, Integral University, Lucknow-226026, India
| | - Mohammad `Saquib
- Department of Chemistry, Faculty of Science, King Khalid University P.O. Box 9004, Abha 61413, Saudi Arabia
| | - Naseem Ahmad
- Department of Chemistry, Integral University, Lucknow-226026, India
| | | | - Abdillah G.Al-Sehemi
- Department of Chemistry, Faculty of Science, King Khalid University P.O. Box 9004, Abha 61413, Saudi Arabia
| | - Malik Nasibullah
- Department of Chemistry, Integral University, Lucknow-226026, India
| |
Collapse
|
10
|
Ambethkar S, Kalaiselvi M, Ramamoorthy J, Padmini V. I 2-Catalyzed Oxidative Cross-Coupling Reaction of Methyl Ketones and 2-(2-Aminophenyl) Benzimidazole: Facile Access to Benzimidazo[1,2- c]quinazoline. ACS Omega 2018; 3:5021-5028. [PMID: 31458715 PMCID: PMC6641929 DOI: 10.1021/acsomega.8b00067] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/24/2018] [Accepted: 03/23/2018] [Indexed: 05/25/2023]
Abstract
A general and efficient iodine-catalyzed metal-free oxidative cross-coupling reaction of methyl ketones with 2-(1H-benzo[d]imidazol-2-yl)aniline has been established. This is a new synthetic strategy for the synthesis of benzimidazo[1,2-c]quinazoline derivatives involving C(sp3)-H oxidation, condensation, and cyclization processes.
Collapse
|
11
|
Manasa KL, Sastry KNV, Tangella Y, Babu BN. Tandem Synthesis of 3,4-Disubstituted Pyrroles from Aldehydes, 1,3-Diketones and TosMIC Under Metal-Free Conditions. ChemistrySelect 2018. [DOI: 10.1002/slct.201800110] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Kesari Lakshmi Manasa
- Department of Medicinal Chemistry; National Institute of Pharmaceutical Education and Research (NIPER); Hyderabad- 500 037 India
- Centre for Semiochemicals; CSIR-Indian Institute of Chemical Technology; Hyderabad- 500 007 India
| | - Kasinathuni Naga Visweswara Sastry
- Department of Medicinal Chemistry; National Institute of Pharmaceutical Education and Research (NIPER); Hyderabad- 500 037 India
- Centre for Semiochemicals; CSIR-Indian Institute of Chemical Technology; Hyderabad- 500 007 India
| | - Yellaiah Tangella
- Centre for Semiochemicals; CSIR-Indian Institute of Chemical Technology; Hyderabad- 500 007 India
| | - Bathini Nagendra Babu
- Department of Medicinal Chemistry; National Institute of Pharmaceutical Education and Research (NIPER); Hyderabad- 500 037 India
- Centre for Semiochemicals; CSIR-Indian Institute of Chemical Technology; Hyderabad- 500 007 India
| |
Collapse
|
12
|
Andrade VP, Mittersteiner M, Lobo MM, Frizzo CP, Bonacorso HG, Martins MA, Zanatta N. A comparative study using conventional methods, ionic liquids, microwave irradiation and combinations thereof for the synthesis of 5-trifluoroacetyl-1,2,3,4-tetrahydropyridines. Tetrahedron Lett 2018; 59:891-4. [DOI: 10.1016/j.tetlet.2018.01.059] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
|
13
|
Chang X, Zhang X, Chen Z. FeCl3or MeSO3H-promoted multicomponent reactions for facile synthesis of structurally diverse furan analogues. Org Biomol Chem 2018; 16:4279-4287. [PMID: 29796558 DOI: 10.1039/c8ob00942b] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
The atom-economical characteristics, mild conditions, simple operation and broad substrate scope demonstrated the synthetic value of this protocol.
Collapse
Affiliation(s)
- Xiangqing Chang
- Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals
- Zhejiang University of Technology; College of Pharmaceutical Sciences
- Zhejiang University of Technology
- Hangzhou
- China
| | - Xiongfei Zhang
- Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals
- Zhejiang University of Technology; College of Pharmaceutical Sciences
- Zhejiang University of Technology
- Hangzhou
- China
| | - Zhiwei Chen
- Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals
- Zhejiang University of Technology; College of Pharmaceutical Sciences
- Zhejiang University of Technology
- Hangzhou
- China
| |
Collapse
|
14
|
Khan S, Kumar A, Gupta R, Ahmed QN. The Ritter Reaction of 2-Oxoaldehydes at Room Temperature: Divergent Behaviour towards Acid Strength. ChemistrySelect 2017. [DOI: 10.1002/slct.201701862] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Shahnawaz Khan
- Medicinal Chemistry Division; Indian Institute of Integrative Medicine (IIIM); Jammu India
- Academey of Scientific and Innovative Research, 2-Rafi Marg; New Delhi India, Fax: (+91-1912569333
| | - Atul Kumar
- Medicinal Chemistry Division; Indian Institute of Integrative Medicine (IIIM); Jammu India
- Academey of Scientific and Innovative Research, 2-Rafi Marg; New Delhi India, Fax: (+91-1912569333
| | - Raman Gupta
- Department of Chemistry; G. G. M. Science College Jammu India
| | - Qazi N. Ahmed
- Medicinal Chemistry Division; Indian Institute of Integrative Medicine (IIIM); Jammu India
- Academey of Scientific and Innovative Research, 2-Rafi Marg; New Delhi India, Fax: (+91-1912569333
| |
Collapse
|
15
|
Lohar T, Mane A, Kamat S, Kumbhar A, Salunkhe R. Trifluoroethanol and liquid-assisted grinding method: a green catalytic access for multicomponent synthesis. Res Chem Intermed 2018; 44:1919-33. [DOI: 10.1007/s11164-017-3206-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
|
16
|
Affiliation(s)
- Yu Liu
- MOE Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology, Department of Chemistry, Tsinghua University, Beijing 100084, China
| | - Xiangli Yi
- MOE Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology, Department of Chemistry, Tsinghua University, Beijing 100084, China
| | - Xuewei Luo
- MOE Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology, Department of Chemistry, Tsinghua University, Beijing 100084, China
| | - Chanjuan Xi
- MOE Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology, Department of Chemistry, Tsinghua University, Beijing 100084, China
- State
Key Laboratory of Elemento-Organic Chemistry, Nankai University, Tianjin 300071, China
| |
Collapse
|
17
|
Saroha M, Khanna G, Khurana JM. Synthesis of Novel 5-Substituted 6-Phenylpyrrolo[2, 3-d
]pyrimidine Derivatives via One-pot Three-Component Reactions Under Catalyst-Free Condition. ChemistrySelect 2017. [DOI: 10.1002/slct.201701234] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Mohit Saroha
- Department of chemistry; University of Delhi; Delhi- 110007
| | - Garima Khanna
- Department of chemistry; University of Delhi; Delhi- 110007
| | | |
Collapse
|
18
|
Ambethkar S, Kalaiselvi M, Padmini V, Bhuvanesh N. Synthesis of 3-Substituted Quinazolinones via C-N and C-C bond Cleavage of Enaminone. ChemistrySelect 2017. [DOI: 10.1002/slct.201700457] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- Sethurajan Ambethkar
- Department of Organic Chemistry, School of Chemistry; Madurai Kamaraj University; Madurai- 625021,Tamilnadu India
| | - Mariappan Kalaiselvi
- Department of Organic Chemistry, School of Chemistry; Madurai Kamaraj University; Madurai- 625021,Tamilnadu India
| | - Vediappen Padmini
- Department of Organic Chemistry, School of Chemistry; Madurai Kamaraj University; Madurai- 625021,Tamilnadu India
| | - Nattamai Bhuvanesh
- Department of Chemistry; Texas A&M University; College Station USA, TX 77842
| |
Collapse
|
19
|
Yang X, Chen Z, Zhong W. Synthesis of Chromeno[3,4‐
b
]pyrrol‐4(3
H
)‐ones through the Domino Cyclization of 3‐Aminocoumarins with Arylglyoxal Monohydrates. European J Org Chem 2017. [DOI: 10.1002/ejoc.201700054] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Xiaofeng Yang
- Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals College of Pharmaceutical Sciences Zhejiang University of Technology Chao Wang Road 18th 310014 Hangzhou China
| | - Zhiwei Chen
- Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals College of Pharmaceutical Sciences Zhejiang University of Technology Chao Wang Road 18th 310014 Hangzhou China
| | - Weihui Zhong
- Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals College of Pharmaceutical Sciences Zhejiang University of Technology Chao Wang Road 18th 310014 Hangzhou China
| |
Collapse
|
20
|
Ambethkar S, Vellimalai M, Padmini V, Bhuvanesh N. Iodine-mediated C–N and C–S bond formation: regioselective synthesis of benzo[4,5]imidazo[2,1-b]thiazoles. NEW J CHEM 2017. [DOI: 10.1039/c6nj02102f] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
The regioselective synthesis of benzo[4,5]imidazo[2,1-b]thiazole derivatives via amination (C–N) and intramolecular cyclization (C–S) reactions in the presence of molecular iodine has been reported. This method is base and metal free and features inexpensive catalysts, with a simple procedure and a short reaction time.
Collapse
Affiliation(s)
- Sethurajan Ambethkar
- Department of Organic Chemistry
- School of Chemistry
- Madurai Kamaraj University
- Madurai 625021
- India
| | - Muthalu Vellimalai
- Department of Organic Chemistry
- School of Chemistry
- Madurai Kamaraj University
- Madurai 625021
- India
| | - Vediappen Padmini
- Department of Organic Chemistry
- School of Chemistry
- Madurai Kamaraj University
- Madurai 625021
- India
| | - Nattamai Bhuvanesh
- X-ray Diffraction Laboratory
- Department of Chemistry
- Texas A & M University
- College Station
- USA
| |
Collapse
|
21
|
Zhang Y, Sun J, Shen GL, Yan CG. Selective synthesis of tetrahydroimidazo[1,2-a]pyridine and pyrrolidine derivatives via a one-pot two-step reaction. Org Biomol Chem 2017; 15:8072-8077. [DOI: 10.1039/c7ob01860f] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
In the presence of triethylamine, the addition reaction of substituted α-amino acid alkyl esters with dialkyl but-2-ynedioate afforded active β-enamino esters, which in turn reacted with aromatic aldehydes and malononitrile to give tetrahydroimidazo[1,2-a]pyridine derivatives in moderate yields.
Collapse
Affiliation(s)
- Yu Zhang
- College of Chemistry & Chemical Engineering
- Yangzhou University
- Yangzhou 225002
- China
| | - Jing Sun
- College of Chemistry & Chemical Engineering
- Yangzhou University
- Yangzhou 225002
- China
| | - Guo-Liang Shen
- College of Chemistry & Chemical Engineering
- Yangzhou University
- Yangzhou 225002
- China
| | - Chao-Guo Yan
- College of Chemistry & Chemical Engineering
- Yangzhou University
- Yangzhou 225002
- China
| |
Collapse
|