1
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Muskan, Verma AK. o-Alkynylaryl 2-Cyanoacrylates: A Synthon for the Construction of Diverse Isoquinolones/Napthyridinones. Org Lett 2024; 26:1238-1242. [PMID: 38323799 DOI: 10.1021/acs.orglett.4c00053] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2024]
Abstract
o-Alkynylaryl 2-cyanoacrylates have been disclosed as a new synthon for the regioselective synthesis of isoquinolones and naphthyridinones under mild reaction conditions. The attractive feature of this investigation includes carbon-carbon double bond cleavage under metal-free conditions by an intramolecular SN2 reaction. Incorporating two distinct C-I bonds in the resulting products provides facile opportunity for structural elaboration. The viability of the present protocol was unveiled by postfunctionalization with drug analogues and gram-scale synthesis.
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Affiliation(s)
- Muskan
- Department of Chemistry, University of Delhi, Delhi-110007, India
| | - Akhilesh K Verma
- Department of Chemistry, University of Delhi, Delhi-110007, India
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2
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Thakur D, Aggarwal T, Muskan, Sushmita, Verma AK. Unveiling the Three-Component Phosphonylation on Alkynylaldehydes: Toolbox toward Fluorescent Molecules. J Org Chem 2023; 88:2474-2486. [PMID: 36715609 DOI: 10.1021/acs.joc.2c02915] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
A regioselective tandem approach for annulated napthyridines/isoquinolines embedded with the phosphine oxide group under mild reaction conditions has been achieved in good to excellent yields. The designed strategy involves the triflate-induced formation of new C sp3-P and C sp2-N bond formation in one pot. This protocol was also well tolerated for the construction of densely functionalized organo-phosphorylated chromenes in good yields. Further, phosphino-derived sulfamethazine and sulfamethoxazole drugs were also successfully synthesized in good yields. The mechanistic studies revealed that the ionic pathway and the formation of regioselective 6-endo dig cyclized products were confirmed through X-ray crystallographic studies. Interestingly, photophysical studies of selectivity selected compounds revealed their stimulating fluorescence properties.
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Affiliation(s)
- Deepika Thakur
- Department of Chemistry, University of Delhi, Delhi110007, India
| | - Trapti Aggarwal
- Department of Chemistry, University of Delhi, Delhi110007, India
| | - Muskan
- Department of Chemistry, University of Delhi, Delhi110007, India
| | - Sushmita
- Department of Chemistry, Netaji Subhas University of Technology, Dwarka Sec-3, Delhi110078, India
| | - Akhilesh K Verma
- Department of Chemistry, University of Delhi, Delhi110007, India
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3
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Borah P, Borah G, Nath AC, Latif W, Banik BK. Facile Multicomponent Mannich Reaction towards Biologically Active Compounds. ChemistrySelect 2023. [DOI: 10.1002/slct.202203758] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Affiliation(s)
- Preetismita Borah
- CSIO Analytical facility CAF)(a) CSIR-Central Scientific Instruments Organisation, Sector 30C Chandigarh India
| | - Gongutri Borah
- Department of Chemistry University of Science and Technology Meghalaya India
| | - Arabinda C. Nath
- Department of Chemistry University of Science and Technology Meghalaya India
| | - Wajid Latif
- Research Development & College of Natural Sciences and Human Studies Prince Mohammad Bin Fahd University Al Khobar, Kingdom of Saudi Arabia
| | - Bimal Krishna Banik
- Research Development & College of Natural Sciences and Human Studies Prince Mohammad Bin Fahd University Al Khobar, Kingdom of Saudi Arabia
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4
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Nandi S, Jamatia R, Sarkar R, Sarkar FK, Alam S, Pal AK. One‐Pot Multicomponent Reaction: A Highly Versatile Strategy for the Construction of Valuable Nitrogen‐Containing Heterocycles. ChemistrySelect 2022. [DOI: 10.1002/slct.202201901] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Sibaji Nandi
- Department of Chemistry North-Eastern Hill University Shillong Meghalaya 793022 India
| | - Ramen Jamatia
- Department of Chemistry Rajiv Gandhi University, Rono Hills, Doimukh Arunachal Pradesh 791112 India
| | - Rajib Sarkar
- Department of Chemistry North-Eastern Hill University Shillong Meghalaya 793022 India
| | - Fillip Kumar Sarkar
- Department of Chemistry North-Eastern Hill University Shillong Meghalaya 793022 India
| | - Safiul Alam
- Department of Chemistry Aliah University, IIA/27, New Town Kolkata 700160 India
| | - Amarta Kumar Pal
- Department of Chemistry North-Eastern Hill University Shillong Meghalaya 793022 India
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5
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Gazdag T, Mayer PJ, Kalapos PP, Holczbauer T, El Bakouri O, London G. Unsymmetrical Thienopentalenes: Synthesis, Optoelectronic Properties, and (Anti)aromaticity Analysis. ACS OMEGA 2022; 7:8336-8349. [PMID: 35309486 PMCID: PMC8928497 DOI: 10.1021/acsomega.1c05618] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/08/2021] [Accepted: 02/22/2022] [Indexed: 06/14/2023]
Abstract
The synthesis and properties of a series of unsymmetrical thienopentalenes are explored, including both monoareno and diareno derivatives. For the synthesis of monoareno pentalenes, a carbopalladation cascade reaction between alkynes and gem-dibromoolefins was applied. Diareno pentalene derivatives were accessed via gold-catalyzed cyclization of diynes. Thiophene was fused to pentalene in two different geometries via its 2,3 and 3,4 bonds. 2,3-Fusion resulted in increased antiaromaticity of the pentalene unit compared to the 3,4-fusion both in the monoareno and diareno framework. Monothienopentalenes that contained the destabilizing 2,3-fusion could not be isolated. For diareno derivatives, the aromatic character of the different aryl groups fused to the pentalene was not independent. Destabilizing fusion on one side resulted in alleviated aromaticity on the other side and vice versa. The synthesized molecules were characterized experimentally by 1H NMR and UV-vis spectroscopies, cyclic voltammetry, and X-ray crystallography, and their aromatic character was assessed using magnetic (NICS and ACID) and electronic indices (MCI and FLU).
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Affiliation(s)
- Tamás Gazdag
- MTA
TTK Lendület Functional Organic Materials Research Group, Institute
of Organic Chemistry, Research Centre for
Natural Sciences, Magyar tudósok krt. 2., Budapest 1117, Hungary
- Hevesy
György PhD School of Chemistry, Eötvös
Loránd University, Pázmány Péter sétány 1/a, Budapest 1117, Hungary
| | - Péter J. Mayer
- MTA
TTK Lendület Functional Organic Materials Research Group, Institute
of Organic Chemistry, Research Centre for
Natural Sciences, Magyar tudósok krt. 2., Budapest 1117, Hungary
- Institute
of Chemistry, University of Szeged, Rerrich tér 1, Szeged 6720, Hungary
| | - Péter Pál Kalapos
- MTA
TTK Lendület Functional Organic Materials Research Group, Institute
of Organic Chemistry, Research Centre for
Natural Sciences, Magyar tudósok krt. 2., Budapest 1117, Hungary
| | - Tamás Holczbauer
- Centre
for Structural Science and Institute of Organic Chemistry, Research Centre for Natural Sciences, Magyar tudósok körútja
2 Budapest 1117, Hungary
| | - Ouissam El Bakouri
- Institut
de Química Computacional i Catàlisi (IQCC) and Departament
de Química, Universitat de Girona, C/Maria Aurèlia Capmany 6, Girona 17003, Catalonia, Spain
| | - Gábor London
- MTA
TTK Lendület Functional Organic Materials Research Group, Institute
of Organic Chemistry, Research Centre for
Natural Sciences, Magyar tudósok krt. 2., Budapest 1117, Hungary
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6
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Singh R, Sharma VP, Yadav P, Sonker P, Singh RM, Tewari AK. Sodium sulphide promoted synthesis of fused quinoline at room temperature. Org Biomol Chem 2021; 19:8108-8112. [PMID: 34498656 DOI: 10.1039/d1ob01085a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A novel, simple and eco-friendly strategy for the synthesis of thiopyrano[4,3-b]quinolin-1-ones and pyrrolo[3,4-b]quinolin-1-ones from 2-alkynylquinoline-3-carbonitriles and sodium sulphide (Na2S·9H2O) under catalyst-free conditions at room temperature has been described. In this reaction, a readily available inorganic salt (Na2S·9H2O) serves as the sulphur source and leads to the generation of diverse functionalized thiopyrano[4,3-b]quinolin-1-ones and pyrrolo[3,4-b]quinolin-1-ones in moderate to excellent yields through sulfuration, annulation, and aerial oxidation.
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Affiliation(s)
- Rashmi Singh
- Department of Chemistry, Institute of Science, Banaras Hindu University, Varanasi-221005, Uttar Pradesh, India.
| | - Vishal Prasad Sharma
- Department of Chemistry, Institute of Science, Banaras Hindu University, Varanasi-221005, Uttar Pradesh, India.
| | - Priyanka Yadav
- Department of Chemistry, Institute of Science, Banaras Hindu University, Varanasi-221005, Uttar Pradesh, India.
| | - Priyanka Sonker
- Department of Chemistry, Institute of Science, Banaras Hindu University, Varanasi-221005, Uttar Pradesh, India.
| | - Radhey Mohan Singh
- Department of Chemistry, Institute of Science, Banaras Hindu University, Varanasi-221005, Uttar Pradesh, India.
| | - Ashish Kumar Tewari
- Department of Chemistry, Institute of Science, Banaras Hindu University, Varanasi-221005, Uttar Pradesh, India.
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7
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Lavanya M, Lin C, Mao J, Thirumalai D, Aabaka SR, Yang X, Mao J, Huang Z, Zhao J. Synthesis and Anticancer Properties of Functionalized 1,6-Naphthyridines. Top Curr Chem (Cham) 2021; 379:13. [PMID: 33624162 DOI: 10.1007/s41061-020-00314-6] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2020] [Accepted: 11/12/2020] [Indexed: 12/29/2022]
Abstract
The burgeoning interest in synthesis and biological applications of 1,6-naphthyridines reflects the importance of 1,6-naphthyridines in the synthetic as well as medicinal chemistry fields. Specially, 1,6-naphthyridines are pharmacologically active, with variety of applications such as anticancer, anti-human immunodeficiency virus (HIV), anti-microbial, analgesic, anti-inflammatory and anti-oxidant activities. Although collective recent synthetic developments have paved a path to a wide range of functionalized 1,6-naphthyridines, a complete correlation of synthesis with biological activity remains elusive. The current review focuses on recent synthetic developments from the last decade and a thorough study of the anticancer activity of 1,6-naphthyridines on different cancer cell lines. Anticancer activity has been correlated to 1,6-naphthyridines using the literature on the structure-activity relationship (SAR) along with molecular modeling studies. Exceptionally, at the end of this review, the utility of 1,6-naphthyridines displaying activities other than anticancer has also been included as a glimmering extension.
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Affiliation(s)
- Mallu Lavanya
- State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Southwest Petroleum University, Chengdu, 610500, Xindu, People's Republic of China.,School of Chemistry and Chemical Engineering, Southwest Petroleum University, Chengdu, 610500, People's Republic of China
| | - Chong Lin
- State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Southwest Petroleum University, Chengdu, 610500, Xindu, People's Republic of China.
| | - Jincheng Mao
- State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Southwest Petroleum University, Chengdu, 610500, Xindu, People's Republic of China.
| | | | - Sreenath Reddy Aabaka
- State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Southwest Petroleum University, Chengdu, 610500, Xindu, People's Republic of China
| | - Xiaojiang Yang
- State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Southwest Petroleum University, Chengdu, 610500, Xindu, People's Republic of China
| | - Jinhua Mao
- State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Southwest Petroleum University, Chengdu, 610500, Xindu, People's Republic of China
| | - Zhiyu Huang
- School of Chemistry and Chemical Engineering, Southwest Petroleum University, Chengdu, 610500, People's Republic of China
| | - Jinzhou Zhao
- State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Southwest Petroleum University, Chengdu, 610500, Xindu, People's Republic of China
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8
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Gholami-Koupaei Z, Shiri M, Kaffash S, Yasaei Z. Palladium Catalyzed Domino Sonogashira Coupling of 2-Chloro-3-(Chloromethyl)Quinolines with Terminal Acetylenes Followed by Dimerization. Polycycl Aromat Compd 2019. [DOI: 10.1080/10406638.2019.1695216] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Affiliation(s)
- Zahra Gholami-Koupaei
- Department of Chemistry, Faculty of Physics and Chemistry, Alzahra University, Tehran, Iran
| | - Morteza Shiri
- Department of Chemistry, Faculty of Physics and Chemistry, Alzahra University, Tehran, Iran
| | - Simin Kaffash
- Department of Chemistry, Faculty of Physics and Chemistry, Alzahra University, Tehran, Iran
| | - Zahra Yasaei
- Department of Chemistry, Faculty of Physics and Chemistry, Alzahra University, Tehran, Iran
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9
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Kumar S, Saunthwal RK, Saini KM, Verma AK. Dual function of carbon tetrachloride: synthesis of chlorinated heterocycles. Chem Commun (Camb) 2019; 55:10721-10724. [PMID: 31429428 DOI: 10.1039/c9cc04746h] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An efficient tandem approach to invent highly chlorinated and structurally diversified dihydropyridine fused heterocycles from easily accessible ortho-alkynylaldehydes and primary amines under metal-free conditions via four sequential bond formations is described. The proposed tandem route proceeds via a carbon tetrachloride-mediated 6-endo-dig ring closure followed by nucleophilic attack of the trichloromethyl anion.
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Affiliation(s)
- Shiv Kumar
- Synthetic Organic Chemistry Research Laboratory, Department of Chemistry, University of Delhi, Delhi-110007, India.
| | - Rakesh K Saunthwal
- Synthetic Organic Chemistry Research Laboratory, Department of Chemistry, University of Delhi, Delhi-110007, India.
| | - Kapil M Saini
- Synthetic Organic Chemistry Research Laboratory, Department of Chemistry, University of Delhi, Delhi-110007, India.
| | - Akhilesh K Verma
- Synthetic Organic Chemistry Research Laboratory, Department of Chemistry, University of Delhi, Delhi-110007, India.
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10
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Kumar R, Chandra A, Mir BA, Shukla G. Cu(I)-Catalyzed Oxygen and Nitrogen Nucleophiles Triggered Regioselective Synthesis of Furo/Pyrrolo-Annulated Quinolines. J Org Chem 2019; 84:10710-10723. [PMID: 31389233 DOI: 10.1021/acs.joc.9b00662] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Cu(I)-catalyzed intramolecular annulation of o-ethynylquinoline-3-carbaldehydes leads to the synthesis of alkoxy/imidazole-substituted 1,3-dihydrofuro[3,4-b]quinolines via C-O and C-N bond formation. The scope of the reaction was further extended to o-ethynylquinoline-3-carbonitriles for the synthesis of alkoxy-substituted 3H-pyrrolo[3,4-b]quinolines using alcohols as nucleophiles. These reactions are regioselectively favoring the 5-exo-dig cyclizations in all the annulation processes.
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Affiliation(s)
- Ritush Kumar
- Department of Chemistry , Indian Institute of Technology Guwahati , Guwahati 781039 , India
| | - Atish Chandra
- Centre of Biomedical Research , SGPGI Campus, Raibarely Road , Lucknow , Uttar Pradesh 226014 , India
| | - Bilal Ahmad Mir
- Department of Chemistry , Indian Institute of Technology Guwahati , Guwahati 781039 , India
| | - Gaurav Shukla
- Department of Chemistry , Indian Institute of Technology Guwahati , Guwahati 781039 , India
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11
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Wang HY, Tian SK. Carbon Tetrachloride-Mediated Cyclization of (2-Alkynyl)arylaldimines for the Synthesis of Polychlorinated Nitrogen Heterocycles. Org Lett 2019; 21:5675-5678. [PMID: 31290329 DOI: 10.1021/acs.orglett.9b02010] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
An unprecedented use of carbon tetrachloride to mediate the 6-endo-dig cyclization of (2-alkynyl)arylaldimines, generated in situ from (2-alkynyl)arylaldehydes and primary amines, has been developed via formal insertion of C═N and C≡C bonds into a C-Cl bond under catalyst-free conditions, providing convenient access to a range of structurally diverse polychlorinated 1,2-dihydroisoquinolines and heteroarene-fused nitrogen heterocycles.
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Affiliation(s)
- Hai-Yang Wang
- Hefei National Laboratory for Physical Sciences at the Microscale, Center for Excellence in Molecular Synthesis, and Department of Chemistry , University of Science and Technology of China , Hefei , Anhui 230026 , China
| | - Shi-Kai Tian
- Hefei National Laboratory for Physical Sciences at the Microscale, Center for Excellence in Molecular Synthesis, and Department of Chemistry , University of Science and Technology of China , Hefei , Anhui 230026 , China.,Key Laboratory of Synthetic Chemistry of Natural Substances , Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences , Shanghai 200032 , China
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12
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Brahmachari G, Nurjamal K. Ultrasound-assisted and trisodium citrate dihydrate-catalyzed green protocol for efficient and one-pot synthesis of substituted chromeno[3′,4′:5,6]pyrano[2,3-d]pyrimidines at ambient conditions. Tetrahedron Lett 2019. [DOI: 10.1016/j.tetlet.2019.06.028] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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13
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Brahmachari G, Begam S. Ceric Ammonium Nitrate (CAN): An Efficient and Eco‐Friendly Catalyst for One‐Pot Synthesis of Diversely Functionalized Biscoumarins in Aqueous Medium under Ambient Conditions. ChemistrySelect 2019. [DOI: 10.1002/slct.201900961] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Goutam Brahmachari
- Laboratory of Natural Products & Organic SynthesisDepartment of ChemistryVisva-Bharati (a Central University), Santiniketan- 731 235 West Bengal India
| | - Sanchari Begam
- Laboratory of Natural Products & Organic SynthesisDepartment of ChemistryVisva-Bharati (a Central University), Santiniketan- 731 235 West Bengal India
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14
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Bharath Kumar Reddy P, Ravi K, Mahesh K, Leelavathi P. Intramolecular Heck reaction: A facile sequential one-pot synthesis of 1,2,3,4-tetrahydrobenzo[b][1,6]naphthyridines. Tetrahedron Lett 2018. [DOI: 10.1016/j.tetlet.2018.09.068] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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15
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Roy TK, Parhi B, Ghorai P. Cinchonamine Squaramide Catalyzed Asymmetric aza-Michael Reaction: Dihydroisoquinolines and Tetrahydropyridines. Angew Chem Int Ed Engl 2018; 57:9397-9401. [DOI: 10.1002/anie.201805020] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2018] [Indexed: 12/26/2022]
Affiliation(s)
- Tarun Kumar Roy
- Department of Chemistry; Indian Institute of Science Education and Research (IISER) Bhopal; Bhopal By-pass Road Bhauri Bhopal- 462066 India
| | - Biswajit Parhi
- Department of Chemistry; Indian Institute of Science Education and Research (IISER) Bhopal; Bhopal By-pass Road Bhauri Bhopal- 462066 India
| | - Prasanta Ghorai
- Department of Chemistry; Indian Institute of Science Education and Research (IISER) Bhopal; Bhopal By-pass Road Bhauri Bhopal- 462066 India
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16
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Roy TK, Parhi B, Ghorai P. Cinchonamine Squaramide Catalyzed Asymmetric aza-Michael Reaction: Dihydroisoquinolines and Tetrahydropyridines. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201805020] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Tarun Kumar Roy
- Department of Chemistry; Indian Institute of Science Education and Research (IISER) Bhopal; Bhopal By-pass Road Bhauri Bhopal- 462066 India
| | - Biswajit Parhi
- Department of Chemistry; Indian Institute of Science Education and Research (IISER) Bhopal; Bhopal By-pass Road Bhauri Bhopal- 462066 India
| | - Prasanta Ghorai
- Department of Chemistry; Indian Institute of Science Education and Research (IISER) Bhopal; Bhopal By-pass Road Bhauri Bhopal- 462066 India
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17
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Umeda R, Ishida T, Nakagawa Y, Inoue M, Yajima T, Nishiyama Y. Synthesis of 1,2-Dihydroisoquinolines via Rhenium-catalyzed Tandem Cyclization and Nucleophilic Addition of 2-(1-Alkynyl)arylaldimines. CHEM LETT 2018. [DOI: 10.1246/cl.180200] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- Rui Umeda
- Faculty of Chemistry, Materials and Bioengineering, Kansai University, Suita, Osaka 564-8680, Japan
| | - Tetsuya Ishida
- Faculty of Chemistry, Materials and Bioengineering, Kansai University, Suita, Osaka 564-8680, Japan
| | - Yota Nakagawa
- Faculty of Chemistry, Materials and Bioengineering, Kansai University, Suita, Osaka 564-8680, Japan
| | - Mitsuru Inoue
- Faculty of Chemistry, Materials and Bioengineering, Kansai University, Suita, Osaka 564-8680, Japan
| | - Tatsuo Yajima
- Faculty of Chemistry, Materials and Bioengineering, Kansai University, Suita, Osaka 564-8680, Japan
| | - Yutaka Nishiyama
- Faculty of Chemistry, Materials and Bioengineering, Kansai University, Suita, Osaka 564-8680, Japan
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18
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Brahmachari G, Begam S, Nurjamal K. Sulfamic Acid‐Catalyzed One‐Pot Synthesis of a New Series of Biologically Relevant Indole‐Uracil Molecular Hybrids in Water at Room Temperature. ChemistrySelect 2018. [DOI: 10.1002/slct.201800488] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Goutam Brahmachari
- Laboratory of Natural Products & Organic Synthesis, Department of ChemistryVisva-Bharati (A Central University) Santiniketan- 731 235, West Bengal India
| | - Sanchari Begam
- Laboratory of Natural Products & Organic Synthesis, Department of ChemistryVisva-Bharati (A Central University) Santiniketan- 731 235, West Bengal India
| | - Khondekar Nurjamal
- Laboratory of Natural Products & Organic Synthesis, Department of ChemistryVisva-Bharati (A Central University) Santiniketan- 731 235, West Bengal India
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19
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Tharra P, Baire B. Regioselective Cyclization of (Indol-3-yl)pentyn-3-ols as an Approach to (Tetrahydro)carbazoles. Org Lett 2018; 20:1118-1121. [DOI: 10.1021/acs.orglett.8b00042] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Affiliation(s)
- Prabhakararao Tharra
- Department of Chemistry, Indian Institute of Technology Madras, Chennai, Tamilnadu, India-600036
| | - Beeraiah Baire
- Department of Chemistry, Indian Institute of Technology Madras, Chennai, Tamilnadu, India-600036
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20
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Kumar S, Saunthwal RK, Aggarwal T, Kotla SKR, Verma AK. Palladium meets copper: one-pot tandem synthesis of pyrido fused heterocycles via Sonogashira conjoined electrophilic cyclization. Org Biomol Chem 2018; 14:9063-9071. [PMID: 27714281 DOI: 10.1039/c6ob01539e] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
An efficient step-economical tandem approach for the direct synthesis of pyrido fused indole, quinoline, benzofuran and benzothiophene derivatives using a bimetallic Pd/Cu catalytic system has been described. The three component reaction of o-halo aldehydes, alkynes and tert-butylamine leads to the synthesis of biologically active polyheterocycles. The present strategy involves the dual role of tert-butylamine and copper(i) in Sonogashira coupling followed by electrophilic cyclization through imine formation. The chemistry has been validated by X-ray crystallographic studies.
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Affiliation(s)
- Sonu Kumar
- Synthetic Organic Chemistry Research Laboratory, Department of Chemistry, University of Delhi, Delhi - 110007, India.
| | - Rakesh K Saunthwal
- Synthetic Organic Chemistry Research Laboratory, Department of Chemistry, University of Delhi, Delhi - 110007, India.
| | - Trapti Aggarwal
- Synthetic Organic Chemistry Research Laboratory, Department of Chemistry, University of Delhi, Delhi - 110007, India.
| | - Siva K Reddy Kotla
- Synthetic Organic Chemistry Research Laboratory, Department of Chemistry, University of Delhi, Delhi - 110007, India.
| | - Akhilesh K Verma
- Synthetic Organic Chemistry Research Laboratory, Department of Chemistry, University of Delhi, Delhi - 110007, India.
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21
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Kumar R, Asthana M, Singh RM. Pd-Catalyzed One-Pot Stepwise Synthesis of Benzo[b][1,6]naphthyridines from 2-Chloroquinoline-3-carbonitriles Using Sulfur and Amines As Nucleophiles. J Org Chem 2017; 82:11531-11542. [PMID: 28980473 DOI: 10.1021/acs.joc.7b02147] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
A palladium-catalyzed one-pot stepwise coupling-annulation reaction of 2-chloroqunoline-3-carbonitriles enabled the direct synthesis of sulfur-substituted benzo[b][1,6]naphthyridines via multiple bond formation. The reaction provided an unusual mode for cyclization as sodium sulfide, a soft nucleophile, preferred to attack on the carbon of the nitrile group rather than on the C-C triple bond. The developed chemistry was extended with the secondary amines as nucleophiles to afford nitrogen-substituted benzo[b][1,6]naphythyridines while primary amines afforded hydroamination products . The hydromination products were transformed to benzo[b][1,6]naphthyridones via a base-mediated cyclization reaction. The developed protocol features inexpensive and easily synthesizable starting materials, easy operations, and a high efficiency and tolerance to a broad range of substrates.
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Affiliation(s)
- Ritush Kumar
- Department of Chemistry, Indian Institute of Technology Guwahati , Assam-781039, India.,Department of Chemistry, Institute of Science, Centre of Advanced Study, Banaras Hindu University , Varanasi-221005, India
| | - Mrityunjaya Asthana
- Department of Chemistry, Indian Institute of Technology Guwahati , Assam-781039, India
| | - Radhey M Singh
- Department of Chemistry, Institute of Science, Centre of Advanced Study, Banaras Hindu University , Varanasi-221005, India
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22
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Balalaie S, Mirzaie S, Nikbakht A, Hamdan F, Rominger F, Navari R, Bijanzadeh HR. Indium-Catalyzed Intramolecular Hydroamidation of Alkynes: An Exo-Dig Cyclization for the Synthesis of Pyranoquinolines through Post-Transformational Reaction. Org Lett 2017; 19:6124-6127. [PMID: 29087201 DOI: 10.1021/acs.orglett.7b02603] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
An efficient approach for the synthesis of pyranoquinolines through the indium-catalyzed activation of alkynes is reported. Intramolecular hydroamidation of alkynes can proceed through alkyne activation by indium(III) and then 6-exo-dig cyclization, leading to a fused pyran ring with high selectivity, high atom economy, and good to excellent yields. The cyclization was accomplished through the oxygen, not the nitrogen, of the amide functional group.
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Affiliation(s)
- Saeed Balalaie
- Peptide Chemistry Research Center, K. N. Toosi University of Technology , P.O. Box 15875-4416, Tehran, Iran.,Medical Biology Research Center, Kermanshah University of Medical Sciences , Kermanshah, Iran
| | - Sattar Mirzaie
- Peptide Chemistry Research Center, K. N. Toosi University of Technology , P.O. Box 15875-4416, Tehran, Iran
| | - Ali Nikbakht
- Peptide Chemistry Research Center, K. N. Toosi University of Technology , P.O. Box 15875-4416, Tehran, Iran
| | - Fatima Hamdan
- Peptide Chemistry Research Center, K. N. Toosi University of Technology , P.O. Box 15875-4416, Tehran, Iran
| | - Frank Rominger
- Organisch-Chemisches Institut der Universitaet Heidelberg , Im Neuenheimer Feld 270, D-69120 Heidelberg, Germany
| | - Razieh Navari
- Peptide Chemistry Research Center, K. N. Toosi University of Technology , P.O. Box 15875-4416, Tehran, Iran
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23
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Zribi L, Zribi F, Marco-Contelles J, Chabchoub F, Ismaili L. Facile one-pot synthesis of new [1,2,4]triazolo[1,5-a]pyridine derivatives by ultrasonic irradiation. SYNTHETIC COMMUN 2017. [DOI: 10.1080/00397911.2017.1357078] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Lazhar Zribi
- Laboratory of Applied Chemistry, Heterocycles, Lipids and Polymers, Faculty of Sciences of Sfax, University of Sfax, Sfax, Tunisia
| | - Fathi Zribi
- Laboratory of Applied Chemistry, Heterocycles, Lipids and Polymers, Faculty of Sciences of Sfax, University of Sfax, Sfax, Tunisia
| | | | - Fakher Chabchoub
- Laboratory of Applied Chemistry, Heterocycles, Lipids and Polymers, Faculty of Sciences of Sfax, University of Sfax, Sfax, Tunisia
| | - Lhassane Ismaili
- Laboratoire de Chimie Organique et Thérapeutique, Neurosciences Intégratives et Cliniques, University of Bourgogne Franche-Comté, Besançon, France
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24
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Brahmachari G, Nayek N. Catalyst-Free One-Pot Three-Component Synthesis of Diversely Substituted 5-Aryl-2-oxo-/thioxo-2,3-dihydro-1 H-benzo[6,7]chromeno[2,3- d]pyrimidine-4,6,11(5 H)-triones Under Ambient Conditions. ACS OMEGA 2017; 2:5025-5035. [PMID: 31457779 PMCID: PMC6641957 DOI: 10.1021/acsomega.7b00791] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/15/2017] [Accepted: 08/14/2017] [Indexed: 06/10/2023]
Abstract
A simple, catalyst-free, straightforward, and highly efficient one-pot synthesis of pharmaceutically interesting diverse kind of a new series of functionalized 5-aryl-2-oxo-/thioxo-2,3-dihydro-1H-benzo[6,7]chromeno[2,3-d]pyrimidine-4,6,11(5H)-triones 4 (4-1-4-37) and substituted 5,5'-(1,4-phenylene)bis(2-oxo-/thioxo-2,3-dihydro-1H-benzo[6,7]chromeno[2,3-d]pyrimidine-4,6,11(5H)-trione) derivatives 4' (4'-1-4'-3) has been developed based on a three-component reaction between barbituric acid/N,N-dimethylbarbituric acid/2-thiobarbituric acid (1), aromatic aldehydes (2), and 2-hydroxy-1,4-naphthoquinone (3) in aqueous ethanol at room temperature (25-30 °C). The salient features of this protocol are mild reaction conditions, use of no catalyst, no need of column chromatographic purification, excellent yields, high atom economy, eco-friendliness, easy isolation of products, and reusability of reaction media.
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25
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Kumar P, Aggarwal T, Verma AK. Chemoselective Azidation of o-Alkynylaldehydes over [3 + 2] Cycloaddition and Subsequent Staudinger Reaction: Access to Benzonaphthyridines/Naphthyridines. J Org Chem 2017; 82:6388-6397. [DOI: 10.1021/acs.joc.7b01016] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Pradeep Kumar
- Synthetic Organic Chemistry
Research Laboratory, Department of Chemistry, University of Delhi, Delhi 110007, India
| | - Trapti Aggarwal
- Synthetic Organic Chemistry
Research Laboratory, Department of Chemistry, University of Delhi, Delhi 110007, India
| | - Akhilesh K. Verma
- Synthetic Organic Chemistry
Research Laboratory, Department of Chemistry, University of Delhi, Delhi 110007, India
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26
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Brahmachari G, Nurjamal K. Facile and Chemically Sustainable Catalyst-Free Synthesis of Diverse 2-Aryl-4-Alkyl/Aryl-Pyrano[3,2-c]chromen-5(4H)-Ones by One-Pot Multicomponent Reactions at Room Temperature. ChemistrySelect 2017. [DOI: 10.1002/slct.201700687] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Affiliation(s)
- Goutam Brahmachari
- Laboratory of Natural Products & Organic Synthesis; Department of Chemistry; Visva-Bharati (a Central University); Santiniketan-731 235, West Bengal India
| | - Khondekar Nurjamal
- Laboratory of Natural Products & Organic Synthesis; Department of Chemistry; Visva-Bharati (a Central University); Santiniketan-731 235, West Bengal India
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27
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Brahmachari G, Begam S, Nurjamal K. Bismuth Nitrate Catalyzed One-Pot Multicomponent Synthesis of a Novel Series of Diversely Substituted 1,8-Dioxodecahydroacridines at Room Temperature#. ChemistrySelect 2017. [DOI: 10.1002/slct.201700265] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Goutam Brahmachari
- Laboratory of Natural Products & Organic Synthesis; Department of Chemistry, Visva-Bharati (a Central University); Santiniketan- 731 235, West Bengal India
| | - Sanchari Begam
- Laboratory of Natural Products & Organic Synthesis; Department of Chemistry, Visva-Bharati (a Central University); Santiniketan- 731 235, West Bengal India
| | - Khondekar Nurjamal
- Laboratory of Natural Products & Organic Synthesis; Department of Chemistry, Visva-Bharati (a Central University); Santiniketan- 731 235, West Bengal India
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28
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Banerjee B. Recent developments on ultrasound-assisted one-pot multicomponent synthesis of biologically relevant heterocycles. ULTRASONICS SONOCHEMISTRY 2017; 35:15-35. [PMID: 27771265 DOI: 10.1016/j.ultsonch.2016.10.010] [Citation(s) in RCA: 139] [Impact Index Per Article: 19.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/24/2016] [Revised: 09/24/2016] [Accepted: 10/13/2016] [Indexed: 05/04/2023]
Abstract
Heterocycles are the backbone of organic compounds. Specially, N- &O-containing heterocycles represent privileged structural subunits well distributed in naturally occurring compounds with immense biological activities. Multicomponent reactions (MCRs) are becoming valuable tool for synthesizing structurally diverse molecular entities. On the other hand, the last decade has seen a tremendous outburst in modifying chemical processes to make them sustainable for the betterment of our environment. The application of ultrasound in organic synthesis is fulfilling some of the goals of 'green and sustainable chemistry' as it has some advantages over the traditional thermal methods in terms of reaction rates, yields, purity of the products, product selectivity, etc. Therefore the synthesis of biologically relevant heterocycles using one-pot multi-component technique coupled with the application of ultrasound is one of the thrusting areas in the 21st Century among the organic chemists. The present review deals with the "up to date" developments on ultrasound assisted one-pot multi-component synthesis of biologically relevant heterocycles reported so far.
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Affiliation(s)
- Bubun Banerjee
- Department of Chemistry, Indus International University, V.P.O. Bathu, Distt. Una, Himachal Pradesh 174301, India.
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29
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Cao Z, Zhu H, Meng X, Guan J, Zhang Q, Tian L, Sun X, Chen G, You J. Metal-Free Reaction ofortho-Carbonylated Alkynyl-Substituted Arylaldehydes with Common Amines: Selective Access to Functionalized Isoindolinone and Indenamine Derivatives. Chemistry 2016; 22:16979-16985. [DOI: 10.1002/chem.201603045] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2016] [Indexed: 12/17/2022]
Affiliation(s)
- Ziping Cao
- School of Chemistry and Chemical Engineering; Qufu Normal University; Shandong Key Laboratory of Life-Organic Analysis; Key Laboratory of Pharmaceutical Intermediates and Analysis of Natural Medicine, Qufu; 273165 Shandong P. R. China
| | - Hongbo Zhu
- School of Chemistry and Chemical Engineering; Qufu Normal University; Shandong Key Laboratory of Life-Organic Analysis; Key Laboratory of Pharmaceutical Intermediates and Analysis of Natural Medicine, Qufu; 273165 Shandong P. R. China
| | - Xin Meng
- School of Chemistry and Chemical Engineering; Qufu Normal University; Shandong Key Laboratory of Life-Organic Analysis; Key Laboratory of Pharmaceutical Intermediates and Analysis of Natural Medicine, Qufu; 273165 Shandong P. R. China
| | - Jun Guan
- School of Chemistry and Chemical Engineering; Qufu Normal University; Shandong Key Laboratory of Life-Organic Analysis; Key Laboratory of Pharmaceutical Intermediates and Analysis of Natural Medicine, Qufu; 273165 Shandong P. R. China
| | - Qiang Zhang
- School of Chemistry and Chemical Engineering; Qufu Normal University; Shandong Key Laboratory of Life-Organic Analysis; Key Laboratory of Pharmaceutical Intermediates and Analysis of Natural Medicine, Qufu; 273165 Shandong P. R. China
| | - Laijin Tian
- School of Chemistry and Chemical Engineering; Qufu Normal University; Shandong Key Laboratory of Life-Organic Analysis; Key Laboratory of Pharmaceutical Intermediates and Analysis of Natural Medicine, Qufu; 273165 Shandong P. R. China
| | - Xuejun Sun
- School of Chemistry and Chemical Engineering; Qufu Normal University; Shandong Key Laboratory of Life-Organic Analysis; Key Laboratory of Pharmaceutical Intermediates and Analysis of Natural Medicine, Qufu; 273165 Shandong P. R. China
| | - Guang Chen
- School of Chemistry and Chemical Engineering; Qufu Normal University; Shandong Key Laboratory of Life-Organic Analysis; Key Laboratory of Pharmaceutical Intermediates and Analysis of Natural Medicine, Qufu; 273165 Shandong P. R. China
| | - Jinmao You
- School of Chemistry and Chemical Engineering; Qufu Normal University; Shandong Key Laboratory of Life-Organic Analysis; Key Laboratory of Pharmaceutical Intermediates and Analysis of Natural Medicine, Qufu; 273165 Shandong P. R. China
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30
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Pal S, Choudhary D, Jainth M, Kumar S, Tiwari RK, Verma AK. Regio- and Stereoselective Domino Synthesis of Oxazolo Fused Pyridoindoles and Benzofurooxazolo Pyridines from ortho-Alkynylarylaldehydes. J Org Chem 2016; 81:9356-9371. [DOI: 10.1021/acs.joc.6b02062] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Shilpi Pal
- Synthetic
Organic Chemistry Research Laboratory, Department of Chemistry, University of Delhi, Delhi 110007, India
| | - Deepak Choudhary
- Synthetic
Organic Chemistry Research Laboratory, Department of Chemistry, University of Delhi, Delhi 110007, India
| | - Mohit Jainth
- Synthetic
Organic Chemistry Research Laboratory, Department of Chemistry, University of Delhi, Delhi 110007, India
| | - Sonu Kumar
- Synthetic
Organic Chemistry Research Laboratory, Department of Chemistry, University of Delhi, Delhi 110007, India
| | - Rakesh K. Tiwari
- Chapman University School of Pharmacy, Harry and Diane Rinker Health Science Campus, 9401
Jeronimo Road, Irvine, California 92618, United States
| | - Akhilesh K. Verma
- Synthetic
Organic Chemistry Research Laboratory, Department of Chemistry, University of Delhi, Delhi 110007, India
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31
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Dore A, Asproni B, Scampuddu A, Gessi S, Murineddu G, Cichero E, Fossa P, Merighi S, Bencivenni S, Pinna GA. Synthesis, molecular modeling and SAR study of novel pyrazolo[5,1-f][1,6]naphthyridines as CB 2 receptor antagonists/inverse agonists. Bioorg Med Chem 2016; 24:5291-5301. [PMID: 27624523 DOI: 10.1016/j.bmc.2016.08.055] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2016] [Revised: 08/05/2016] [Accepted: 08/27/2016] [Indexed: 01/03/2023]
Abstract
Pyrazolo[5,1-f][1,6]naphthyridine-carboxamide derivatives were synthesized and evaluated for the affinity at CB1 and CB2 receptors. Based on the AgOTf and proline-cocatalyzed multicomponent methodology, the ethyl 5-(p-tolyl)pyrazolo[5,1-f][1,6]naphthyridine-2-carboxylate (12) and ethyl 5-(2,4-dichlorophenyl)pyrazolo[5,1-f][1,6]naphthyridine-2-carboxylate (13) intermediates were synthesized from the appropriate o-alkynylaldehydes, p-toluenesulfonyl hydrazide and ethyl pyruvate. Most of the novel compounds feature a p-tolyl (8a-i) or a 2,4-dichlorophenyl (8j) motif at the C5-position of the tricyclic pyrazolo[5,1-f][1,6]naphthyridine scaffold. Structural variation on the carboxamide moiety at the C2-position includes basic monocyclic, terpenoid and adamantine-based amines. Among these derivatives, compound 8h (N-adamant-1-yl-5-(p-tolyl)pyrazolo[5,1-f][1,6]naphthyridine-2-carboxamide) exhibited the highest CB2 receptor affinity (Ki=33nM) and a high degree of selectivity (KiCB1/KiCB2=173:1), whereas a similar trend in the near nM range was seen for the bornyl analogue (compound 8f, Ki=53nM) and the myrtanyl derivative 8j (Ki=67nM). Effects of 8h, 8f and 8j on forskolin-stimulated cAMP levels were determined, showing antagonist/inverse agonist properties for such compounds. Docking studies conducted for these derivatives and the reference antagonist/inverse agonist compound 4 (SR144528) disclosed the specific pattern of interactions probably related to the pyrazolo[5,1-f][1,6]naphthyridine scaffold as CB2 inverse agonists.
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Affiliation(s)
- Antonio Dore
- Dipartimento di Chimica e Farmacia, Università degli Studi di Sassari, Via F. Muroni 23/a, 07100 Sassari, Italy
| | - Battistina Asproni
- Dipartimento di Chimica e Farmacia, Università degli Studi di Sassari, Via F. Muroni 23/a, 07100 Sassari, Italy.
| | - Alessia Scampuddu
- Dipartimento di Chimica e Farmacia, Università degli Studi di Sassari, Via F. Muroni 23/a, 07100 Sassari, Italy
| | - Stefania Gessi
- Dipartimento di Scienze Mediche, Sezione di Farmacologia, Università di Ferrara, Via Fossato di Mortara, 17-19, 44121 Ferrara, Italy.
| | - Gabriele Murineddu
- Dipartimento di Chimica e Farmacia, Università degli Studi di Sassari, Via F. Muroni 23/a, 07100 Sassari, Italy
| | - Elena Cichero
- Dipartimento di Farmacia, Università di Genova, Viale Benedetto XV n. 3, 16132 Genova, Italy
| | - Paola Fossa
- Dipartimento di Farmacia, Università di Genova, Viale Benedetto XV n. 3, 16132 Genova, Italy
| | - Stefania Merighi
- Dipartimento di Scienze Mediche, Sezione di Farmacologia, Università di Ferrara, Via Fossato di Mortara, 17-19, 44121 Ferrara, Italy
| | - Serena Bencivenni
- Dipartimento di Scienze Mediche, Sezione di Farmacologia, Università di Ferrara, Via Fossato di Mortara, 17-19, 44121 Ferrara, Italy
| | - Gérard A Pinna
- Dipartimento di Chimica e Farmacia, Università degli Studi di Sassari, Via F. Muroni 23/a, 07100 Sassari, Italy
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32
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Zhao Y, Luo M, Li Y, Liu X, Tang Z, Deng K, Zhao G. Efficient Synthesis of Isoquinolines by AgNO3-Catalyzed Sequential Imination-Annulation of 2-Alkynyl Aldehydes with Ammonium Bicarbonate. CHINESE J CHEM 2016. [DOI: 10.1002/cjoc.201600277] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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33
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Dhiman S, Mishra UK, Ramasastry SSV. One-Pot Trimetallic Relay Catalysis: A Unified Approach for the Synthesis of β-Carbolines and Other [c]-Fused Pyridines. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201600840] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Affiliation(s)
- Seema Dhiman
- Department of Chemical Sciences; Indian Institute of Science Education and Research (IISER) Mohali; Knowledge City, Sector 81, S. A. S. Nagar, Manuali PO Punjab 140306 India
| | - Uttam K. Mishra
- Department of Chemical Sciences; Indian Institute of Science Education and Research (IISER) Mohali; Knowledge City, Sector 81, S. A. S. Nagar, Manuali PO Punjab 140306 India
| | - S. S. V. Ramasastry
- Department of Chemical Sciences; Indian Institute of Science Education and Research (IISER) Mohali; Knowledge City, Sector 81, S. A. S. Nagar, Manuali PO Punjab 140306 India
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34
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Dhiman S, Mishra UK, Ramasastry SSV. One-Pot Trimetallic Relay Catalysis: A Unified Approach for the Synthesis of β-Carbolines and Other [c]-Fused Pyridines. Angew Chem Int Ed Engl 2016; 55:7737-41. [DOI: 10.1002/anie.201600840] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2016] [Indexed: 12/15/2022]
Affiliation(s)
- Seema Dhiman
- Department of Chemical Sciences; Indian Institute of Science Education and Research (IISER) Mohali; Knowledge City, Sector 81, S. A. S. Nagar, Manuali PO Punjab 140306 India
| | - Uttam K. Mishra
- Department of Chemical Sciences; Indian Institute of Science Education and Research (IISER) Mohali; Knowledge City, Sector 81, S. A. S. Nagar, Manuali PO Punjab 140306 India
| | - S. S. V. Ramasastry
- Department of Chemical Sciences; Indian Institute of Science Education and Research (IISER) Mohali; Knowledge City, Sector 81, S. A. S. Nagar, Manuali PO Punjab 140306 India
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35
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Brahmachari G, Banerjee B. Facile and Chemically Sustainable One-Pot Synthesis of a Wide Array of FusedO- andN-Heterocycles Catalyzed by Trisodium Citrate Dihydrate under Ambient Conditions. ASIAN J ORG CHEM 2016. [DOI: 10.1002/ajoc.201500465] [Citation(s) in RCA: 60] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- Goutam Brahmachari
- Laboratory of Natural Products & Organic Synthesis; Department of Chemistry; Visva-Bharati (a Central University); Santiniketan 731235 West Bengal India
| | - Bubun Banerjee
- Laboratory of Natural Products & Organic Synthesis; Department of Chemistry; Visva-Bharati (a Central University); Santiniketan 731235 West Bengal India
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36
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Özer MS, Menges N, Keskin S, Şahin E, Balci M. Synthesis of Pyrrole-Fused C,N-Cyclic Azomethine Imines and Pyrazolopyrrolopyrazines: Analysis of Their Aromaticity Using Nucleus-Independent Chemical Shifts Values. Org Lett 2016; 18:408-11. [DOI: 10.1021/acs.orglett.5b03434] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Merve Sinem Özer
- Department
of Chemistry, Middle East Technical University, 06800 Ankara, Turkey
| | - Nurettin Menges
- Department
of Chemistry, Middle East Technical University, 06800 Ankara, Turkey
- Faculty
of Pharmacy, Yüzüncü Yil University, 65100 Van, Turkey
| | - Selbi Keskin
- Department
of Chemistry, Middle East Technical University, 06800 Ankara, Turkey
- Department
of Chemistry, Giresun University, 28100 Giresun, Turkey
| | - Ertan Şahin
- Department
of Chemistry, Atatürk University, 25240 Erzurum, Turkey
| | - Metin Balci
- Department
of Chemistry, Middle East Technical University, 06800 Ankara, Turkey
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37
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Chaudhari TY, Urvashi U, Ginotra SK, Yadav P, Kumar G, Tandon V. Regioselective synthesis of functionalized dihydroisoquinolines from o-alkynylarylaldimines via the Reformatsky reaction. Org Biomol Chem 2016; 14:9896-9906. [DOI: 10.1039/c6ob01790h] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A novel approach for the synthesis of functionalized 1,2-dihydroisoquinolines from o-alkynylarylaldimines via the Reformatsky reaction without the aid of an external Lewis acid has been described.
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Affiliation(s)
| | - Urvashi Urvashi
- Department of Chemistry
- University of Delhi
- New Delhi-110007
- India
| | | | - Pooja Yadav
- Department of Chemistry
- University of Delhi
- New Delhi-110007
- India
| | - Gulshan Kumar
- Department of Chemistry
- University of Delhi
- New Delhi-110007
- India
| | - Vibha Tandon
- Special Centre for Molecular Medicine
- Jawahar Lal Nehru University
- New Delhi-110067
- India
- Department of Chemistry
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38
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Kumar S, Cruz-Hernández C, Pal S, Saunthwal RK, Patel M, Tiwari RK, Juaristi E, Verma AK. Tandem Approach to Benzothieno- and Benzofuropyridines from o-Alkynyl Aldehydes via Silver-Catalyzed 6-endo-dig Ring Closure. J Org Chem 2015; 80:10548-60. [DOI: 10.1021/acs.joc.5b01647] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Sonu Kumar
- Synthetic
Organic Chemistry Research Laboratory, Department of Chemistry, University of Delhi, Delhi 110007, India
| | - Carlos Cruz-Hernández
- Departamento
de Química, Centro de Investigación y de Estudios Avanzados, Apdo. Postal 14-740, México City 07000, Mexico
| | - Shilpi Pal
- Synthetic
Organic Chemistry Research Laboratory, Department of Chemistry, University of Delhi, Delhi 110007, India
| | - Rakesh K. Saunthwal
- Synthetic
Organic Chemistry Research Laboratory, Department of Chemistry, University of Delhi, Delhi 110007, India
| | - Monika Patel
- Synthetic
Organic Chemistry Research Laboratory, Department of Chemistry, University of Delhi, Delhi 110007, India
| | - Rakesh K. Tiwari
- Chapman
University School of Pharmacy, Harry and Diane Rinker Health Science Campus, 9401 Jeronimo Road, Irvine, California 92618, United States
| | - Eusebio Juaristi
- Departamento
de Química, Centro de Investigación y de Estudios Avanzados, Apdo. Postal 14-740, México City 07000, Mexico
| | - Akhilesh K. Verma
- Synthetic
Organic Chemistry Research Laboratory, Department of Chemistry, University of Delhi, Delhi 110007, India
- School
of Physical Sciences, Jawaharlal Nehru University, New Delhi 110067, India
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Urvashi, Rastogi GK, Ginotra SK, Agarwal A, Tandon V. An expedient approach to 1,2-dihydroisoquinoline derivatives via cobalt catalysed 6-endo dig cyclization followed by Mannich condensation of o-alkynylarylaldimines. Org Biomol Chem 2015; 13:1000-7. [PMID: 25485624 DOI: 10.1039/c4ob02036g] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A highly effective 6-endo dig cyclisation of o-alkynylaldimines to 1,2-dihydroisoquinolines has been described via direct and nitro Mannich condensation using inexpensive and readily available cobalt chloride as catalyst. This strategy provides an effective procedure for the synthesis of substituted 1,2-dihydroisoquinolines derivatives in moderate to high yields. An addition of pronucleophiles, such as nitromethane, acetone and α-hydroxyacetone, to o-alkynylarylaldimines has been achieved via isoquinolinium intermediate.
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Affiliation(s)
- Urvashi
- Chemical Biology Research Laboratory, Department of Chemistry, University of Delhi, Delhi-110007, India
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Rhodium(III)-catalyzed double C–H activation: a straightforward approach to fused imidazo[1,2-a]pyridines from internal alkynes. Tetrahedron Lett 2015. [DOI: 10.1016/j.tetlet.2015.06.010] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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41
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Li Z, Kumar A, Sharma SK, Parmar VS, Van der Eycken EV. Catalyst-controlled exo/endo selectivity in a post-Ugi intramolecular hydroarylation: synthesis of pyrrolopyridinones, pyrroloazepinones, and benzothienopyridines. Tetrahedron 2015. [DOI: 10.1016/j.tet.2015.03.103] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Saunthwal RK, Patel M, Kumar S, Verma AK. Cu(II)-catalyzed tandem synthesis of 2-imino[1,3]benzothiazines from 2-aminoaryl acrylates via thioamidation and concomitant chemoselective thia-Michael addition. Tetrahedron Lett 2015. [DOI: 10.1016/j.tetlet.2014.12.058] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Densely functionalized 1,2-dihydrobenzo[b][1,6]naphthyridines: one-pot synthesis via sequential Ugi and Heck reactions. Tetrahedron 2014. [DOI: 10.1016/j.tet.2014.08.046] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Xiao J, Chen Y, Zhu S, Wang L, Xu L, Wei H. Diversified Construction of Chromeno[3,4-c]pyridin-5-one and Benzo[c]chromen-6-one Derivatives by Domino Reaction of 4-Alkynyl-2-oxo-2H-chromene-3-carbaldehydes. Adv Synth Catal 2014. [DOI: 10.1002/adsc.201301171] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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45
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Thirupathi N, Kumar YK, Kant R, Reddy MS. Selective 5-exo-digCyclization ofin SituSynthesizedN-Boc-2-aminophenyl Ethoxyethynyl Carbenols: Synthesis of Multifunctional Indoles and Their Derivatives. Adv Synth Catal 2014. [DOI: 10.1002/adsc.201301002] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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46
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Jha RR, Aggarwal T, Verma AK. Stereoselective tandem synthesis of oxazolo-fused pyrroloquinolines from o-alkynylaldehydes via Ag(I)-catalyzed regioselective 5-exo-dig ring closure. Tetrahedron Lett 2014. [DOI: 10.1016/j.tetlet.2014.02.103] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Abbiati G, Rossi E. Silver and gold-catalyzed multicomponent reactions. Beilstein J Org Chem 2014; 10:481-513. [PMID: 24605168 PMCID: PMC3943762 DOI: 10.3762/bjoc.10.46] [Citation(s) in RCA: 103] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2013] [Accepted: 01/17/2014] [Indexed: 12/22/2022] Open
Abstract
Silver and gold salts and complexes mainly act as soft and carbophilic Lewis acids even if their use as σ-activators has been rarely reported. Recently, transformations involving Au(I)/Au(III)-redox catalytic systems have been reported in the literature. In this review we highlight all these aspects of silver and gold-mediated processes and their application in multicomponent reactions.
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Affiliation(s)
- Giorgio Abbiati
- Dipartimento di Scienze Farmaceutiche, Sezione di Chimica Generale e Organica "A. Marchesini", Università degli Studi di Milano, Via Venezian, 21 - 20133 Milano, Italy
| | - Elisabetta Rossi
- Dipartimento di Scienze Farmaceutiche, Sezione di Chimica Generale e Organica "A. Marchesini", Università degli Studi di Milano, Via Venezian, 21 - 20133 Milano, Italy
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Jha RR, Saunthwal RK, Verma AK. Stereoselective tandem synthesis of thiazolo fused naphthyridines and thienopyridines from o-alkynylaldehydes via Au(iii)-catalyzed regioselective 6-endo-dig ring closure. Org Biomol Chem 2014; 12:552-6. [DOI: 10.1039/c3ob42035c] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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50
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Jha RR, Danodia AK, Kumar S, Verma AK. Au(III)-catalyzed regio- and stereoselective tandem synthesis of oxazolo fused naphthyridines and isoquinolines from o-alkynylaldehydes. Tetrahedron Lett 2014. [DOI: 10.1016/j.tetlet.2013.11.072] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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