1
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Zhou H, Li Z, Chen J, Zhou S, Wang X, Zhang L, Chen J, Lv N. Synthesis of polysubstituted pyridazines via Cu-mediated C(sp 3)-C(sp 3) coupling/annulation of saturated ketones with acylhydrazones. Chem Commun (Camb) 2024. [PMID: 39145417 DOI: 10.1039/d4cc02760d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/16/2024]
Abstract
Pyridazine is a significant skeleton that widely exists in drugs and bioactive molecules. We herein describe expeditious approaches to access polysubstituted pyridazines from readily accessible unactivated ketones and acylhydrazones via Cu-promoted C(sp3)-C(sp3) coupling/cyclization sequences in a single-step fashion. Notably, the disparate 3,4,6-trisubstituted pyridazines and 3,5-disubstituted pyridazines could be obtained by tailoring the ketone's structure and reaction conditions. These transformations feature good functional group compatibility, excellent step-economy, and chemoselectivity. The potential synthetic utility of these conversions is illustrated by scale-up reactions and late-stage derivatizations of the as-prepared pyridazine products.
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Affiliation(s)
- Honggui Zhou
- College of Chemistry & Materials Engineering, Wenzhou University, Wenzhou 325035, China.
| | - Zhefeng Li
- College of Chemistry & Materials Engineering, Wenzhou University, Wenzhou 325035, China.
| | - Juehong Chen
- College of Chemistry & Materials Engineering, Wenzhou University, Wenzhou 325035, China.
| | - Si Zhou
- College of Chemistry & Materials Engineering, Wenzhou University, Wenzhou 325035, China.
| | - Xinyu Wang
- College of Chemistry & Materials Engineering, Wenzhou University, Wenzhou 325035, China.
| | - Linwei Zhang
- College of Chemistry & Materials Engineering, Wenzhou University, Wenzhou 325035, China.
| | - Jiuxi Chen
- College of Chemistry & Materials Engineering, Wenzhou University, Wenzhou 325035, China.
| | - Ningning Lv
- College of Chemistry & Materials Engineering, Wenzhou University, Wenzhou 325035, China.
- Key Lab of Biohealth Materials and Chemistry of Wenzhou, Wenzhou 325035, China
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2
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Wu Y, Zhang W, Ma S, Song C, Chang J. Copper-Catalyzed Synthesis of N-Fused Quinolines via C(sp 3)-H Activation-Radical Addition-Cyclization Cascade. J Org Chem 2023. [PMID: 38012068 DOI: 10.1021/acs.joc.3c01812] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2023]
Abstract
A novel copper-catalyzed cyclization reaction for the synthesis of pyrazolo[1,5-a]quinoline, triazolo[1,5-a]quinoline, and pyrrolo[1,2-a]quinoline derivatives is described. The process is initiated by di-tert-butyl peroxide-mediated C(sp3)-H activation to generate the α-functionalized radical, which supervenes a cascade radical addition/cyclization sequence to access the N-fused quinolines in good yields with broad functional group tolerance.
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Affiliation(s)
- Yangang Wu
- College of Chemistry, Zhengzhou University, Zhengzhou 450001, China
| | - Wen Zhang
- College of Chemistry, Zhengzhou University, Zhengzhou 450001, China
| | - Shiyu Ma
- College of Chemistry, Zhengzhou University, Zhengzhou 450001, China
| | - Chuanjun Song
- College of Chemistry, Zhengzhou University, Zhengzhou 450001, China
| | - Junbiao Chang
- College of Chemistry, Zhengzhou University, Zhengzhou 450001, China
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3
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Kumar A, Dhameliya TM, Sharma K, Patel KA, Hirani RV. Environmentally Benign Approaches towards the Synthesis of Quinolines. ChemistrySelect 2022. [DOI: 10.1002/slct.202201059] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Asim Kumar
- Amity Institute of Pharmacy Amity University Haryana, Panchgaon, Manesar 122 413 Haryana India
| | - Tejas M. Dhameliya
- Department of Pharmaceutical Chemistry and Quality Assurance L. M. College of Pharmacy, Navrangpura, Ahmedabad 380 009 Gujarat India
| | - Kirti Sharma
- Amity Institute of Pharmacy Amity University Haryana, Panchgaon, Manesar 122 413 Haryana India
| | - Krupa A. Patel
- Department of Pharmaceutical Chemistry and Quality Assurance L. M. College of Pharmacy, Navrangpura, Ahmedabad 380 009 Gujarat India
| | - Rajvi V. Hirani
- Department of Pharmaceutical Chemistry and Quality Assurance L. M. College of Pharmacy, Navrangpura, Ahmedabad 380 009 Gujarat India
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4
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Foley DJ, Waldmann H. Ketones as strategic building blocks for the synthesis of natural product-inspired compounds. Chem Soc Rev 2022; 51:4094-4120. [PMID: 35506561 DOI: 10.1039/d2cs00101b] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
Natural product-inspired compound collections serve as excellent sources for the identification of new bioactive compounds to treat disease. However, such compounds must necessarily be more structurally-enriched than traditional screening compounds, therefore inventive synthetic strategies and reliable methods are needed to prepare them. Amongst the various possible starting materials that could be considered for the synthesis of natural product-inspired compounds, ketones can be especially valuable due to the vast variety of complexity-building synthetic transformations that they can take part in, their high prevalence as commercial building blocks, and relative ease of synthesis. With a view towards developing a unified synthetic strategy for the preparation of next generation bioactive compound collections, this review considers whether ketones could serve as general precursors in this regard, and summarises the opulence of synthetic transformations available for the annulation of natural product ring-systems to ketone starting materials.
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Affiliation(s)
- Daniel J Foley
- School of Physical and Chemical Sciences, University of Canterbury, Christchurch, New Zealand. .,Max-Planck Institute of Molecular Physiology, Dortmund, Germany
| | - Herbert Waldmann
- Max-Planck Institute of Molecular Physiology, Dortmund, Germany.,Faculty of Chemistry and Chemical Biology, TU Dortmund University, Dortmund, Germany
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5
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Sonochemical synthesis of 2-substituted nicotinic acid ethyl ester derivatives: Their in vitro and in silico evaluation against SIRT1. J Mol Struct 2021. [DOI: 10.1016/j.molstruc.2021.131069] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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6
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Gujjarappa R, Vodnala N, Musib D, Malakar CC. Organocatalytic Decarboxylation and Dual C(sp
3
)−H Bond Functionalization Toward Facile Access to Divergent 2,6‐Diarylpyridines. ASIAN J ORG CHEM 2021. [DOI: 10.1002/ajoc.202100627] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Raghuram Gujjarappa
- Department of Chemistry National Institute of Technology Manipur Langol Imphal 795004 Manipur India
| | - Nagaraju Vodnala
- Department of Chemistry National Institute of Technology Manipur Langol Imphal 795004 Manipur India
- Department of Chemistry Indian Institute of Technology Delhi Multi-storey building, HauzKhas New Delhi 110016 India
| | - Dulal Musib
- Department of Chemistry National Institute of Technology Manipur Langol Imphal 795004 Manipur India
| | - Chandi C. Malakar
- Department of Chemistry National Institute of Technology Manipur Langol Imphal 795004 Manipur India
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7
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Yashwantrao G, Saha S. Sustainable strategies of C–N bond formation via Ullmann coupling employing earth abundant copper catalyst. Tetrahedron 2021. [DOI: 10.1016/j.tet.2021.132406] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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8
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Tamargo RJI, Rubio PYM, Mohandoss S, Shim JJ, Lee YR. Cyrene™ as a Neoteric Bio-Based Solvent for Catalyst-Free Microwave-Assisted Construction of Diverse Bipyridine Analogues for Heavy-Metal Sensing. CHEMSUSCHEM 2021; 14:2133-2140. [PMID: 33780600 DOI: 10.1002/cssc.202100379] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/22/2021] [Revised: 03/26/2021] [Indexed: 06/12/2023]
Abstract
An environment-friendly synthetic protocol was developed to access polyfunctionalized bipyridines from readily available amines, chromone-3-carboxaldehydes, and pyridinylacetonitriles under catalyst- and additive-free conditions using the bio-renewable neoteric solvent dihydrolevoglucosenone (Cyrene™). In this strategy, amines served as both a mild-base promoter and a substrate. In addition, water was the only by-product of this reaction. This multi-component protocol provided highly diverse 2,3-, 3,3-, and 3,4-bipyridines in good-to-excellent yields. Operational simplicity, short reaction time, excellent atom economy, and easily obtainable substrates are among the features of this microwave-assisted synthesis. Additionally, the compounds synthesized via this method have demonstrated the ability to detect heavy metals, specifically mercury(II), copper(II), and iron (III) ions.
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Affiliation(s)
- Ramuel John Inductivo Tamargo
- School of Chemical Engineering, Yeungnam University, Gyeongsan, 38541, South Korea
- Advanced Materials and Organic Synthesis Laboratory, Department of Chemical Engineering, University of the Philippines Diliman, Quezon City, 1101, Philippines
| | - Peter Yuosef M Rubio
- School of Chemical Engineering, Yeungnam University, Gyeongsan, 38541, South Korea
| | - Sonaimuthu Mohandoss
- School of Chemical Engineering, Yeungnam University, Gyeongsan, 38541, South Korea
| | - Jae-Jin Shim
- School of Chemical Engineering, Yeungnam University, Gyeongsan, 38541, South Korea
| | - Yong Rok Lee
- School of Chemical Engineering, Yeungnam University, Gyeongsan, 38541, South Korea
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9
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Xu X, Ai Y, Wang R, Liu L, Yang J, Li F. Ruthenium-catalyzed acceptorless dehydrogenative coupling of o-aminobenzyl alcohols with ketones to quinolines in the presence of carbonate salt. J Catal 2021. [DOI: 10.1016/j.jcat.2020.12.016] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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10
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Hu S, Feng H, Xi H, Meng Y, Li M, Huang L, Huang J. Copper-catalyzed deaminative alkynylation of secondary amines with alkynes: selectivity switch in the synthesis of diverse propargylamines. Org Chem Front 2021. [DOI: 10.1039/d1qo01240a] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
The copper-catalyzed selective deamination and alkynylation of the unsymmetrical secondary amines with terminal alkynes was reported with a broad substrate scope and excellent functional compatibility.
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Affiliation(s)
- Shengyun Hu
- College of Chemistry and Chemical Engineering, Shanghai University of Engineering Science, Shanghai 201620, China
- State Key Laboratory of New Drug and Pharmaceutical Process, Shanghai Institute of Pharmaceutical Industry, China State Institute of Pharmaceutical Industry, Shanghai 201203, China
| | - Huangdi Feng
- College of Chemistry and Chemical Engineering, Shanghai University of Engineering Science, Shanghai 201620, China
- Shanghai Key Laboratory of Chemical Biology, East China University of Science and Technology, Shanghai 200237, China
| | - Hui Xi
- Key Laboratory of Tobacco Flavor Basic Research of CNTC, Zhengzhou Tobacco Research Institute of CNTC, Zhengzhou 450001, China
| | - Yuchen Meng
- State Key Laboratory of New Drug and Pharmaceutical Process, Shanghai Institute of Pharmaceutical Industry, China State Institute of Pharmaceutical Industry, Shanghai 201203, China
| | - Ming Li
- State Key Laboratory of New Drug and Pharmaceutical Process, Shanghai Institute of Pharmaceutical Industry, China State Institute of Pharmaceutical Industry, Shanghai 201203, China
| | - Liliang Huang
- College of Chemistry and Chemical Engineering, Shanghai University of Engineering Science, Shanghai 201620, China
| | - Junhai Huang
- State Key Laboratory of New Drug and Pharmaceutical Process, Shanghai Institute of Pharmaceutical Industry, China State Institute of Pharmaceutical Industry, Shanghai 201203, China
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11
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Huang C, Li J, Wang J, Zheng Q, Li Z, Tu T. Hydrogen-bond-assisted transition-metal-free catalytic transformation of amides to esters. Sci China Chem 2020. [DOI: 10.1007/s11426-020-9883-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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12
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Vodnala N, Gujjarappa R, Satheesh V, Gupta R, Kaldhi D, Kabi AK, Malakar CC. Copper‐Catalyzed [2+2+1+1] Annulation for the Regioselective Synthesis of 2,6‐Diarylpyridines
via
C1‐Insertion and Subsequent Cyclization. ChemistrySelect 2020. [DOI: 10.1002/slct.202002968] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Nagaraju Vodnala
- Department of Chemistry National Institute of Technology Manipur Langol Imphal 795004 Manipur India
| | - Raghuram Gujjarappa
- Department of Chemistry National Institute of Technology Manipur Langol Imphal 795004 Manipur India
| | - Vanaparthi Satheesh
- Schulich Faculty of Chemistry Technion-Israel Institute of Technology Haifa 3200003 Israel
| | - Richa Gupta
- Department of Chemistry National University of Singapore Singapore 117543 Singapore
| | - Dhananjaya Kaldhi
- Department of Chemistry National Institute of Technology Manipur Langol Imphal 795004 Manipur India
| | - Arup K. Kabi
- Department of Chemistry National Institute of Technology Manipur Langol Imphal 795004 Manipur India
| | - Chandi C. Malakar
- Department of Chemistry National Institute of Technology Manipur Langol Imphal 795004 Manipur India
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13
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Weyesa A, Mulugeta E. Recent advances in the synthesis of biologically and pharmaceutically active quinoline and its analogues: a review. RSC Adv 2020; 10:20784-20793. [PMID: 35517753 PMCID: PMC9054321 DOI: 10.1039/d0ra03763j] [Citation(s) in RCA: 110] [Impact Index Per Article: 27.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2020] [Accepted: 05/11/2020] [Indexed: 02/05/2023] Open
Abstract
Recently, quinoline has become an essential heterocyclic compound due to its versatile applications in the fields of industrial and synthetic organic chemistry. It is a vital scaffold for leads in drug discovery and plays a major role in the field of medicinal chemistry. Nowadays there are plenty of articles reporting syntheses of the main scaffold and its functionalization for biological and pharmaceutical activities. So far, a wide range of synthesis protocols have been reported in the literature for the construction of this scaffold. For example, Gould-Jacob, Friedländer, Pfitzinger, Skraup, Doebner-von Miller and Conrad-Limpach are well-known classical synthesis protocols used up to now for the construction of the principal quinoline scaffold. Transition metal catalysed reactions, metal-free ionic liquid mediated reactions, ultrasound irradiation reactions and green reaction protocols are also useful for the construction and functionalization of this compound. The main part of this review focuses on and highlights the above-mentioned synthesis procedures and findings to tackle the drawbacks of the syntheses and side effects on the environment. Furthermore, various selected quinolines and derivatives with potential biological and pharmaceutical activities will be presented.
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Affiliation(s)
- Abdanne Weyesa
- Department of Applied Chemistry, School of Applied Natural Science, Adama Science and Technology University P. O. Box: 1888 Adama Ethiopia
| | - Endale Mulugeta
- Department of Applied Chemistry, School of Applied Natural Science, Adama Science and Technology University P. O. Box: 1888 Adama Ethiopia
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14
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Xuan DD. Recent Progress in the Synthesis of Quinolines. Curr Org Synth 2020; 16:671-708. [PMID: 31984888 DOI: 10.2174/1570179416666190719112423] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2018] [Revised: 04/18/2019] [Accepted: 04/18/2019] [Indexed: 02/07/2023]
Abstract
BACKGROUND Quinoline-containing compounds present in both natural and synthetic products are an important class of heterocyclic compounds. Many of the substituted quinolines have been used in various areas including medicine as drugs. Compounds with quinoline skeleton possess a wide range of bioactivities such as antimalarial, anti-bacterial, anthelmintic, anticonvulsant, antiviral, anti-inflammatory, and analgesic activity. Due to such a wide range of applicability, the synthesis of quinoline derivatives has attracted a lot of attention of chemists to develop effective methods. Many known methods have been expanded and improved. Furthermore, various new methods for quinoline synthesis have been established. This review will focus on considerable studies on the synthesis of quinolines date which back to 2014. OBJECTIVE In this review, we discussed recent achievements on the synthesis of quinoline compounds. Some classical methods have been modified and improved, while other new methods have been developed. A vast variety of catalysts were used for these transformations. In some studies, quinoline synthesis reaction mechanisms were also displayed. CONCLUSION Many methods for the synthesis of substituted quinoline rings have been developed recently. Over the past five years, the majority of those reported have been based on cycloisomerization and cyclization processes. Undoubtedly, more imaginative approaches to quinoline synthesis will appear in the literature in the near future. The application of known methods to natural product synthesis is probably the next challenge in the field.
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Affiliation(s)
- Duc Dau Xuan
- Department of Chemistry, Institute of Natural Science, Vinh University, Vinh City, Vietnam
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15
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Ligand-controlled phosphine-free Co(II)-catalysed cross-coupling of secondary and primary alcohols. Tetrahedron 2019. [DOI: 10.1016/j.tet.2019.130640] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
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16
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Fernandes AAG, Stivanin ML, Jurberg ID. RuCl
3
/ PPh
3
‐ Catalyzed Direct Conversion of Isoxazol‐5‐ones to 2,3‐Disubstituted Pyridines. ChemistrySelect 2019. [DOI: 10.1002/slct.201900761] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Alessandra A. G. Fernandes
- State University of Campinas, Institute of ChemistryDepartment of Organic Chemistry Rua Monteiro Lobato 270 13083-970 Campinas, SP Brazil
| | - Mateus L. Stivanin
- State University of Campinas, Institute of ChemistryDepartment of Organic Chemistry Rua Monteiro Lobato 270 13083-970 Campinas, SP Brazil
| | - Igor D. Jurberg
- State University of Campinas, Institute of ChemistryDepartment of Organic Chemistry Rua Monteiro Lobato 270 13083-970 Campinas, SP Brazil
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17
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Chen J, Ding Y, Gao Y, Zhou D, Hider R, Ma DY. Selectfluor-promoted Synthesis of 2,4- and 2,6-Diarylpyridines Through Annulation of Aromatic Ketones with an Ammonium Source in DMF. ChemistrySelect 2019. [DOI: 10.1002/slct.201900113] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Jing Chen
- School of Pharmaceutical Science; Zhejiang Chinese Medical University, Hangzhou; 310053 P R China
| | - Yuxin Ding
- School of Pharmaceutical Science; Zhejiang Chinese Medical University, Hangzhou; 310053 P R China
| | - Yejun Gao
- School of Pharmaceutical Science; Zhejiang Chinese Medical University, Hangzhou; 310053 P R China
| | - Dongheng Zhou
- School of Pharmaceutical Science; Zhejiang Chinese Medical University, Hangzhou; 310053 P R China
- Department of Biochemistry and Molecular Biology; School of Medicine; Zhejiang University; Hangzhou 310058 P R China
| | - Robert Hider
- Institute of Pharmaceutical Science; King's College London; Franklin-Wilkins Building; Stamford Street; London SE1 9NH UK
| | - Dr Yongmin Ma
- School of Pharmaceutical Science; Zhejiang Chinese Medical University, Hangzhou; 310053 P R China
- School of Pharmaceutical and Chemical Engineering; Taizhou University; Taizhou 318000 P R China
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18
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Joshi A, Semwal R, Suresh E, Adimurthy S. Pd-Catalyzed regioselective synthesis of 2,6-disubstituted pyridines through denitrogenation of pyridotriazoles and 3,8-diarylation of imidazo[1,2-a]pyridines. Chem Commun (Camb) 2019; 55:10888-10891. [DOI: 10.1039/c9cc05953a] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
Synthesis of 2,6-disubstituted pyridines from pyridotriazoles through palladium-catalyzed aerobic oxidative denitrogenative reactions has been described.
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Affiliation(s)
- Abhisek Joshi
- Academy of Scientific & Innovative Research
- CSIR-Central Salt & Marine Chemicals Research Institute
- Bhavnagar-364 002
- India
| | - Rashmi Semwal
- Academy of Scientific & Innovative Research
- CSIR-Central Salt & Marine Chemicals Research Institute
- Bhavnagar-364 002
- India
| | - Eringathodi Suresh
- Academy of Scientific & Innovative Research
- CSIR-Central Salt & Marine Chemicals Research Institute
- Bhavnagar-364 002
- India
| | - Subbarayappa Adimurthy
- Academy of Scientific & Innovative Research
- CSIR-Central Salt & Marine Chemicals Research Institute
- Bhavnagar-364 002
- India
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19
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Toyota M, Mikami S. Palladium Acetate-Catalyzed One-Pot Synthesis of Mono- and Disubstitued Pyridines. HETEROCYCLES 2019. [DOI: 10.3987/com-18-s(f)45] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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20
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Yaragorla S, Pareek A. Electrophilic Cyclization of 2-Aminophenylprop-1-yn-3-ols into 3-Iodo-6-(aryldiazenyl)quinolines by Using a One-Pot Azo-Coupling and Iodocyclization Sequence. European J Org Chem 2018. [DOI: 10.1002/ejoc.201800248] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Srinivasarao Yaragorla
- School of Chemistry; University of Hyderabad, P.O. Central University; Gurbaksh Building, W-16, 17 5000046 Gachibowli, Hyderabad Telangana State India
| | - Abhishek Pareek
- School of Chemistry; University of Hyderabad, P.O. Central University; Gurbaksh Building, W-16, 17 5000046 Gachibowli, Hyderabad Telangana State India
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21
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Chen W, Zhang Y, Li P, Wang L. tert-Butyl peroxybenzoate mediated formation of 3-alkylated quinolines from N-propargylamines via a cascade radical addition/cyclization reaction. Org Chem Front 2018. [DOI: 10.1039/c7qo01052d] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
A novel method for constructing 3-alkylated quinolines was developed via tert-butyl peroxybenzoate mediated cycloaddition between N-propargyl aromatic amines and ethers.
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Affiliation(s)
- Wei Chen
- Department of Chemistry
- Huaibei Normal University
- Huaibei
- P. R. China
| | - Yicheng Zhang
- Department of Chemistry
- Huaibei Normal University
- Huaibei
- P. R. China
- School of Environmental and Chemical Engineering
| | - Pinhua Li
- Department of Chemistry
- Huaibei Normal University
- Huaibei
- P. R. China
| | - Lei Wang
- Department of Chemistry
- Huaibei Normal University
- Huaibei
- P. R. China
- State Key Laboratory of Organometallic Chemistry
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22
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BF3
⋅OEt2
-Promoted Annulation for Substituted 2-Arylpyridines as Potent UV Filters and Antibacterial Agents. Adv Synth Catal 2017. [DOI: 10.1002/adsc.201701137] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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23
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Sharma R, Abdullaha M, Bharate SB. Oxidant-Controlled C-sp 2/sp 3-H Cross-Dehydrogenative Coupling of N-Heterocycles with Benzylamines. J Org Chem 2017; 82:9786-9793. [PMID: 28820259 DOI: 10.1021/acs.joc.7b00856] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
Oxidant controlled ionic liquid mediated cross-dehydrogenative coupling (CDC) of benzylamines with N-heterocycles having sp2 or sp3 carbon resulted in the formation of C-benzoylated or alkenylated products. Benzoylation of N-heterocycles occurs via (NH4)2S2O8 catalyzed benzoyl radical formation. An oxidative alkenylation of N-heterocycles having C-sp3 carbon (2-methylaza-arenes) occurs via deamination of benzylamine followed by C-sp3-H bond activation in high stereoselectivity. Both benzoylation and alkenylation protocols are metal-free, green, simple, efficient, and tolerate a wide variety of functional groups.
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Affiliation(s)
- Rohit Sharma
- Medicinal Chemistry Division, CSIR-Indian Institute of Integrative Medicine , Canal Road, Jammu-180001, India.,Academy of Scientific & Innovative Research, CSIR-Indian Institute of Integrative Medicine , Canal Road, Jammu-180001, India
| | - Mohd Abdullaha
- Medicinal Chemistry Division, CSIR-Indian Institute of Integrative Medicine , Canal Road, Jammu-180001, India.,Academy of Scientific & Innovative Research, CSIR-Indian Institute of Integrative Medicine , Canal Road, Jammu-180001, India
| | - Sandip B Bharate
- Medicinal Chemistry Division, CSIR-Indian Institute of Integrative Medicine , Canal Road, Jammu-180001, India.,Academy of Scientific & Innovative Research, CSIR-Indian Institute of Integrative Medicine , Canal Road, Jammu-180001, India
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24
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Yaragorla S, Pareek A, Dada R, Saini PL. Single-Step Synthesis of 3-Iodoquinolines from 2-Aminophenyl Ketones through a Regioselective (6-endo-dig) Electrophilic Cyclization. European J Org Chem 2017. [DOI: 10.1002/ejoc.201700668] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Srinivasarao Yaragorla
- School of Chemistry; University of Hyderabad; Gurbaksh Building, W-16, 17, P. O. Central University 5000046 Gachibowli, Hyderabad Telangana State India
- Department of Chemistry; Central University of Rajasthan; 305817 Bandersindri Rajasthan India
| | - Abhishek Pareek
- School of Chemistry; University of Hyderabad; Gurbaksh Building, W-16, 17, P. O. Central University 5000046 Gachibowli, Hyderabad Telangana State India
- Department of Chemistry; Central University of Rajasthan; 305817 Bandersindri Rajasthan India
| | - Ravikrishna Dada
- School of Chemistry; University of Hyderabad; Gurbaksh Building, W-16, 17, P. O. Central University 5000046 Gachibowli, Hyderabad Telangana State India
- Department of Chemistry; Central University of Rajasthan; 305817 Bandersindri Rajasthan India
| | - Pyare Lal Saini
- Department of Chemistry; Central University of Rajasthan; 305817 Bandersindri Rajasthan India
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25
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Affiliation(s)
- Qi Huang
- Laboratoire de Synthèse
Organique, CNRS UMR 7652 Ecole Polytechnique, Palaiseau 91128 Cedex, France
| | - Samir Z. Zard
- Laboratoire de Synthèse
Organique, CNRS UMR 7652 Ecole Polytechnique, Palaiseau 91128 Cedex, France
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26
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Xiang JC, Cheng Y, Wang ZX, Ma JT, Wang M, Tang BC, Wu YD, Wu AX. Oxidative Trimerization of Amino Acids: Selective Synthesis of 2,3,5-Trisubstituted Pyridines. Org Lett 2017; 19:2997-3000. [DOI: 10.1021/acs.orglett.7b01232] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Jia-Chen Xiang
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Hubei, Wuhan 430079, P. R. China
| | - Yan Cheng
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Hubei, Wuhan 430079, P. R. China
| | - Zi-Xuan Wang
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Hubei, Wuhan 430079, P. R. China
| | - Jin-Tian Ma
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Hubei, Wuhan 430079, P. R. China
| | - Miao Wang
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Hubei, Wuhan 430079, P. R. China
| | - Bo-Cheng Tang
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Hubei, Wuhan 430079, P. R. China
| | - Yan-Dong Wu
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Hubei, Wuhan 430079, P. R. China
| | - An-Xin Wu
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Hubei, Wuhan 430079, P. R. China
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27
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Cha H, Lee K, Chi DY. Synthesis of N -unsubstituted 1,2,3-triazoles via aerobic oxidative N -dealkylation using copper(II) acetate. Tetrahedron 2017. [DOI: 10.1016/j.tet.2017.03.068] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
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28
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Murugan A, Vidyacharan S, Ghosh R, Sharada DS. Metal-Free Regioselective Dual C-H Functionalization in a Cascade Fashion: Access to Isocryptolepine Alkaloid Analogues. ChemistrySelect 2017. [DOI: 10.1002/slct.201700263] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Affiliation(s)
- Arumugavel Murugan
- Department of Chemistry; Indian Institute of Technology Hyderabad; Kandi Sangareddy-502 285, Telangana INDIA
| | - Shinde Vidyacharan
- Department of Chemistry; Indian Institute of Technology Hyderabad; Kandi Sangareddy-502 285, Telangana INDIA
| | - Ruma Ghosh
- Department of Chemistry; Indian Institute of Technology Hyderabad; Kandi Sangareddy-502 285, Telangana INDIA
| | - Duddu S. Sharada
- Department of Chemistry; Indian Institute of Technology Hyderabad; Kandi Sangareddy-502 285, Telangana INDIA
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29
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Ghodse SM, Telvekar VN. Synthesis of 2-phenyl pyridine derivatives from aryl ketones and 1,3-diaminopropane using palladium acetate as a catalyst. Tetrahedron Lett 2017. [DOI: 10.1016/j.tetlet.2016.12.075] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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30
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Dai H, Li CX, Yu C, Wang Z, Yan H, Lu C. Copper(ii) catalyzed domino synthesis of quinoline derivatives from arylamines and alkynes. Org Chem Front 2017. [DOI: 10.1039/c7qo00333a] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
An open-flask copper(ii) catalyzed quinoline synthesis by anilines and electron-deficient alkynes at room temperature has been developed.
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Affiliation(s)
- Huimin Dai
- State Key Laboratory of Coordination Chemistry
- School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing
- China
| | - Chun-Xiao Li
- State Key Laboratory of Coordination Chemistry
- School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing
- China
| | - Chao Yu
- State Key Laboratory of Coordination Chemistry
- School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing
- China
| | - Zihao Wang
- State Key Laboratory of Coordination Chemistry
- School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing
- China
| | - Hong Yan
- State Key Laboratory of Coordination Chemistry
- School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing
- China
| | - Changsheng Lu
- State Key Laboratory of Coordination Chemistry
- School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing
- China
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31
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Yuan JW, Yang LR, Mao P, Qu LB. AgNO3-catalyzed direct C–H arylation of quinolines by oxidative decarboxylation of aromatic carboxylic acids. Org Chem Front 2017. [DOI: 10.1039/c6qo00533k] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
AgNO3-catalyzed direct C–H arylation of quinolines by oxidative decarboxylation of aromatic carboxylic acids to afford aryl quinoline derivatives in moderate yields was described.
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Affiliation(s)
- Jin-Wei Yuan
- School of Chemistry & Chemical Engineering
- Henan University of Technology
- Academician Workstation for Natural Medicinal Chemistry of Henan Province
- Zhengzhou 450001
- P.R. China
| | - Liang-Ru Yang
- School of Chemistry & Chemical Engineering
- Henan University of Technology
- Academician Workstation for Natural Medicinal Chemistry of Henan Province
- Zhengzhou 450001
- P.R. China
| | - Pu Mao
- School of Chemistry & Chemical Engineering
- Henan University of Technology
- Academician Workstation for Natural Medicinal Chemistry of Henan Province
- Zhengzhou 450001
- P.R. China
| | - Ling-Bo Qu
- School of Chemistry & Chemical Engineering
- Henan University of Technology
- Academician Workstation for Natural Medicinal Chemistry of Henan Province
- Zhengzhou 450001
- P.R. China
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32
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Rathore V, Sattar M, Kumar R, Kumar S. Synthesis of Unsymmetrical Diaryl Acetamides, Benzofurans, Benzophenones, and Xanthenes by Transition-Metal-Free Oxidative Cross-Coupling of sp3 and sp2 C–H Bonds. J Org Chem 2016; 81:9206-9218. [DOI: 10.1021/acs.joc.6b01771] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Vandana Rathore
- Department of Chemistry, Indian Institute of Science Education and Research (IISER), Bhopal, MP 462 066, India
| | - Moh. Sattar
- Department of Chemistry, Indian Institute of Science Education and Research (IISER), Bhopal, MP 462 066, India
| | - Raushan Kumar
- Department of Chemistry, Indian Institute of Science Education and Research (IISER), Bhopal, MP 462 066, India
| | - Sangit Kumar
- Department of Chemistry, Indian Institute of Science Education and Research (IISER), Bhopal, MP 462 066, India
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33
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Verma A, Kumar S. Selective Oxidative Decarbonylative Cleavage of Unstrained C(sp(3))-C(sp(2)) Bond: Synthesis of Substituted Benzoxazinones. Org Lett 2016; 18:4388-91. [PMID: 27549986 DOI: 10.1021/acs.orglett.6b02142] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
A transition metal (TM)-free practical synthesis of biologically relevant benzoxazinones has been established via a selective oxidative decarbonylative cleavage of an unstrained C(sp(3))-C(sp(2)) bond employing iodine, sodium bicarbonate, and (t)butyl hydroperoxide in DMSO at 95 °C. Control experiments and Density Functional Theory (DFT) calculations suggest that the reaction involves a [1,5]H shift and extrusion of CO gas as the key steps. The extrusion of CO has also been established using PMA-PdCl2.
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Affiliation(s)
- Ajay Verma
- Department of Chemistry, IISER Bhopal , Bhopal By-pass Road, Bhauri, Bhopal, Madhya Pradesh, 462066, India
| | - Sangit Kumar
- Department of Chemistry, IISER Bhopal , Bhopal By-pass Road, Bhauri, Bhopal, Madhya Pradesh, 462066, India
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34
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Recent Advances in Metal-Free Quinoline Synthesis. Molecules 2016; 21:molecules21080986. [PMID: 27483222 PMCID: PMC6273574 DOI: 10.3390/molecules21080986] [Citation(s) in RCA: 96] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2016] [Revised: 07/21/2016] [Accepted: 07/22/2016] [Indexed: 11/17/2022] Open
Abstract
The quinoline ring system is one of the most ubiquitous heterocycles in the fields of medicinal and industrial chemistry, forming the scaffold for compounds of great significance. These include anti-inflammatory and antitumor agents, the antimalarial drugs quinine and chloroquine, and organic light-emitting diodes. Quinolines were first synthesized in 1879, and since then a multitude of synthetic routes have been developed. Many of these methods, such as the Skraup, Doebner–Von Miller, and Friedlander quinoline syntheses, are well-known but suffer from inefficiency, harsh reaction conditions, and toxic reagents. This review focuses on recent transition metal-free processes toward these important heterocycles, including both novel routes and modifications to established methods. For example, variations on the Skraup method include microwave irradiation, ionic liquid media, and novel annulation partners, all of which have shown increased reaction efficiency and improved yield of the heteroring-unsubstituted quinoline products. Similarly, modifications to other synthetic routes have been implemented, with the quinoline products displaying a wide variety of substitution patterns.
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35
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Xi LY, Zhang RY, Shi L, Chen SY, Yu XQ. Iodine-mediated synthesis of 3-acylbenzothiadiazine 1,1-dioxides. Beilstein J Org Chem 2016; 12:1072-8. [PMID: 27340493 PMCID: PMC4902049 DOI: 10.3762/bjoc.12.101] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2016] [Accepted: 05/11/2016] [Indexed: 12/19/2022] Open
Abstract
An iodine-mediated synthesis of 3-acylbenzothiadizine 1,1-dioxides is described. A range of electronically diverse acetophenones reacted well with several 2-aminobenzenesulfonamides, affording 3-acylbenzothiadiazine 1,1-dioxides in good yields.
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Affiliation(s)
- Long-Yi Xi
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, PR China
| | - Ruo-Yi Zhang
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, PR China
| | - Lei Shi
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, PR China
| | - Shan-Yong Chen
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, PR China
| | - Xiao-Qi Yu
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, PR China
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36
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Huang YN, Li YL, Li J, Deng J. Beyond a Protecting Reagent: DMAP-Catalyzed Cyclization of Boc-Anhydride with 2-Alkenylanilines. J Org Chem 2016; 81:4645-53. [DOI: 10.1021/acs.joc.6b00519] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Ya-Nan Huang
- School of Pharmaceutical Science and Technology, Key Laboratory for Modern Drug Delivery & High-Efficiency, Tianjin University, Tianjin, 300072 P. R. China
| | - Yin-Long Li
- School of Pharmaceutical Science and Technology, Key Laboratory for Modern Drug Delivery & High-Efficiency, Tianjin University, Tianjin, 300072 P. R. China
| | - Jian Li
- School of Pharmaceutical Science and Technology, Key Laboratory for Modern Drug Delivery & High-Efficiency, Tianjin University, Tianjin, 300072 P. R. China
| | - Jun Deng
- School of Pharmaceutical Science and Technology, Key Laboratory for Modern Drug Delivery & High-Efficiency, Tianjin University, Tianjin, 300072 P. R. China
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37
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Luo K, Chen YZ, Chen LX, Wu L. Autoxidative C(sp2)–P Formation: Direct Phosphorylation of Heteroarenes under Oxygen, Metal-Free, and Solvent-Free Conditions. J Org Chem 2016; 81:4682-9. [DOI: 10.1021/acs.joc.6b00592] [Citation(s) in RCA: 43] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Affiliation(s)
- Kai Luo
- Jiangsu
Key Laboratory of Pesticide Science and Department of Chemistry, College
of Sciences, Nanjing Agricultural University, Nanjing 210095, P. R. China
- College
of Plant Protection, Nanjing Agricultural University, Nanjing 210095, P. R. China
| | - Yao-Zhong Chen
- Jiangsu
Key Laboratory of Pesticide Science and Department of Chemistry, College
of Sciences, Nanjing Agricultural University, Nanjing 210095, P. R. China
- College
of Plant Protection, Nanjing Agricultural University, Nanjing 210095, P. R. China
| | - Li-Xian Chen
- Jiangsu
Key Laboratory of Pesticide Science and Department of Chemistry, College
of Sciences, Nanjing Agricultural University, Nanjing 210095, P. R. China
| | - Lei Wu
- Jiangsu
Key Laboratory of Pesticide Science and Department of Chemistry, College
of Sciences, Nanjing Agricultural University, Nanjing 210095, P. R. China
- Beijing
National Laboratory for Molecular Sciences and Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, P. R. China
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38
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Liu F, Yu L, Lv S, Yao J, Liu J, Jia X. An Unexpected Construction of 2-Arylquinolines from N
-Cinnamylanilines through sp
3
CH Aerobic Oxidation Induced by a Catalytic Radical Cation Salt. Adv Synth Catal 2016. [DOI: 10.1002/adsc.201500574] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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39
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Wu X, Zhang J, Liu S, Gao Q, Wu A. An Efficient Synthesis of Polysubstituted Pyridines
via
CH Oxidation and CS Cleavage of Dimethyl Sulfoxide. Adv Synth Catal 2016. [DOI: 10.1002/adsc.201500683] [Citation(s) in RCA: 66] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Xia Wu
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, People's Republic of China, Fax: (+86)‐027‐6786‐7773; phone: (+86)‐027‐6786‐7773
| | - Jingjing Zhang
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, People's Republic of China, Fax: (+86)‐027‐6786‐7773; phone: (+86)‐027‐6786‐7773
| | - Shan Liu
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, People's Republic of China, Fax: (+86)‐027‐6786‐7773; phone: (+86)‐027‐6786‐7773
| | - Qinghe Gao
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, People's Republic of China, Fax: (+86)‐027‐6786‐7773; phone: (+86)‐027‐6786‐7773
| | - Anxin Wu
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, People's Republic of China, Fax: (+86)‐027‐6786‐7773; phone: (+86)‐027‐6786‐7773
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40
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Dhiman S, Saini HK, Nandwana NK, Kumar D, Kumar A. Copper-catalyzed synthesis of quinoline derivatives via tandem Knoevenagel condensation, amination and cyclization. RSC Adv 2016. [DOI: 10.1039/c6ra03798d] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
A novel regioselective synthesis of 2-aminoquinolines and 2-arylquinoline-3-carbonitriles is described via copper-mediated tandem reaction.
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Affiliation(s)
- Shiv Dhiman
- Department of Chemistry
- Birla Institute of Technology and Science
- Pilani
- India
| | - Hitesh Kumar Saini
- Department of Chemistry
- Birla Institute of Technology and Science
- Pilani
- India
| | | | - Dalip Kumar
- Department of Chemistry
- Birla Institute of Technology and Science
- Pilani
- India
| | - Anil Kumar
- Department of Chemistry
- Birla Institute of Technology and Science
- Pilani
- India
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41
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Sharma R, Patel N, Vishwakarma RA, Bharatam PV, Bharate SB. Metal-free oxidative cyclization of acetophenones with diamines: a facile access to phenylpyridines. Chem Commun (Camb) 2016; 52:1009-12. [DOI: 10.1039/c5cc08498a] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
An efficient metal-free access to 2- and 3-phenylpyridines via oxidative coupling of acetophenones with 1,3-diaminopropane has been described.
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Affiliation(s)
- Rohit Sharma
- Medicinal Chemistry Division
- CSIR – Indian Institute of Integrative Medicine
- Jammu-180001
- India
- Academy of Scientific & Innovative Research (AcSIR)
| | - Neha Patel
- Department of Pharmacoinformatics and Department of Medicinal Chemistry
- National Institute of Pharmaceutical Education and Research (NIPER)
- Punjab-160062
- India
| | - Ram A. Vishwakarma
- Medicinal Chemistry Division
- CSIR – Indian Institute of Integrative Medicine
- Jammu-180001
- India
- Academy of Scientific & Innovative Research (AcSIR)
| | - Prasad V. Bharatam
- Department of Pharmacoinformatics and Department of Medicinal Chemistry
- National Institute of Pharmaceutical Education and Research (NIPER)
- Punjab-160062
- India
| | - Sandip B. Bharate
- Medicinal Chemistry Division
- CSIR – Indian Institute of Integrative Medicine
- Jammu-180001
- India
- Academy of Scientific & Innovative Research (AcSIR)
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42
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Hu B, Li Y, Dong W, Xie X, Wan J, Zhang Z. Visible light-induced aerobic C–N bond activation: a photocatalytic strategy for the preparation of 2-arylpyridines and 2-arylquinolines. RSC Adv 2016. [DOI: 10.1039/c6ra07962h] [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] Open
Abstract
An efficient method for accessing arylpyridines and arylquinolines via visible light-induced aerobic C–N bond activation is described.
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Affiliation(s)
- Bei Hu
- School of Chemistry and Chemical Engineering
- Shanghai Jiao Tong University
- Shanghai 200240
- China
| | - Yuyuan Li
- College of Chemistry and Molecular Engineering and College of Environment and Safety Engineering
- Qingdao University of Science and Technology
- Qingdao 266042
- China
| | - Wuheng Dong
- School of Chemistry and Chemical Engineering
- Shanghai Jiao Tong University
- Shanghai 200240
- China
| | - Xiaomin Xie
- School of Chemistry and Chemical Engineering
- Shanghai Jiao Tong University
- Shanghai 200240
- China
| | - Jun Wan
- College of Chemistry and Molecular Engineering and College of Environment and Safety Engineering
- Qingdao University of Science and Technology
- Qingdao 266042
- China
| | - Zhaoguo Zhang
- School of Chemistry and Chemical Engineering
- Shanghai Jiao Tong University
- Shanghai 200240
- China
- Shanghai Institute of Organic Chemistry
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43
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Zheng M, Chen P, Wu W, Jiang H. Palladium-catalyzed Heck-type reaction of oximes with allylic alcohols: synthesis of pyridines and azafluorenones. Chem Commun (Camb) 2016; 52:84-7. [DOI: 10.1039/c5cc06958k] [Citation(s) in RCA: 62] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
An efficient palladium-catalyzed Heck-type reaction of oximes with allylic alcohol has been developed for the synthesis of pyridines and azafluorenones.
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Affiliation(s)
- Meifang Zheng
- School of Chemistry and Chemical Engineering
- South China University of Technology
- Guangzhou 510640
- China
| | - Pengquan Chen
- School of Chemistry and Chemical Engineering
- South China University of Technology
- Guangzhou 510640
- China
| | - Wanqing Wu
- School of Chemistry and Chemical Engineering
- South China University of Technology
- Guangzhou 510640
- China
| | - Huanfeng Jiang
- School of Chemistry and Chemical Engineering
- South China University of Technology
- Guangzhou 510640
- China
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44
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Thirupathi N, Puri S, Reddy TJ, Sridhar B, Reddy MS. Palladium(II)‐Catalyzed Sequential Aminopalladation and Oxidative Coupling with Acetylenes/Enones: Synthesis of Newly Substituted Quinolines from 2‐Aminophenyl Propargyl Alcohols. Adv Synth Catal 2015. [DOI: 10.1002/adsc.201500805] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- Nuligonda Thirupathi
- Medicinal & Process Chemistry Division, CSIR‐Central Drug Research Institute, Lucknow, 226031, India
| | - Surendra Puri
- Medicinal & Process Chemistry Division, CSIR‐Central Drug Research Institute, Lucknow, 226031, India
| | | | - Balasubramanian Sridhar
- Dr. B. Sridhar, X‐Ray Crystallography Division, CSIR‐IICT, Tarnaka, Hyderabad, 500007, India
| | - Maddi Sridhar Reddy
- Medicinal & Process Chemistry Division, CSIR‐Central Drug Research Institute, Lucknow, 226031, India
- Academy of Scientific and Innovative Research, New Delhi 110001, India
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45
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Xiang JC, Wang M, Cheng Y, Wu AX. Molecular Iodine-Mediated Chemoselective Synthesis of Multisubstituted Pyridines through Catabolism and Reconstruction Behavior of Natural Amino Acids. Org Lett 2015; 18:24-7. [DOI: 10.1021/acs.orglett.5b03037] [Citation(s) in RCA: 84] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Jia-Chen Xiang
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Hubei, Wuhan 430079, P. R. China
| | - Miao Wang
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Hubei, Wuhan 430079, P. R. China
| | - Yan Cheng
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Hubei, Wuhan 430079, P. R. China
| | - An-Xin Wu
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Hubei, Wuhan 430079, P. R. China
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46
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Wei WT, Cheng YJ, Hu Y, Chen YY, Zhang XJ, Zou Y, Yan M. Concise Synthesis of 4-ArylquinolinesviaIntramolecular Cyclization of Allylamines and Ketones. Adv Synth Catal 2015. [DOI: 10.1002/adsc.201500647] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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47
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Hardegger LA, Habegger J, Donohoe TJ. Modular Synthesis of Highly Substituted Pyridines via Enolate α-Alkenylation. Org Lett 2015; 17:3222-5. [DOI: 10.1021/acs.orglett.5b01312] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Leo A. Hardegger
- Department of Chemistry,
Chemistry Research Laboratory, University of Oxford, Mansfield
Road, Oxford, OX1 3TA, U.K
| | - Jacqueline Habegger
- Department of Chemistry,
Chemistry Research Laboratory, University of Oxford, Mansfield
Road, Oxford, OX1 3TA, U.K
| | - Timothy J. Donohoe
- Department of Chemistry,
Chemistry Research Laboratory, University of Oxford, Mansfield
Road, Oxford, OX1 3TA, U.K
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48
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Rehan M, Hazra G, Ghorai P. Synthesis of polysubstituted quinolines via transition-metal-free oxidative cycloisomerization of o-cinnamylanilines. Org Lett 2015; 17:1668-71. [PMID: 25768127 DOI: 10.1021/acs.orglett.5b00419] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
An efficient synthesis of 2-aryl 4-substituted quinolines from stable and readily available o-cinnamylanilines, prepared from anilines and cinnamylalcohols, has been developed. The reaction occurred via a regioselective 6-endo-trig intramolecular oxidative cyclization using KO(t)Bu as a mediator and DMSO as an oxidant at rt. The reaction showed a broad substrate scope with good to excellent yields.
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Affiliation(s)
- Mohammad Rehan
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal, Indore By-pass Road, Bhouri, Bhopal-462066, India
| | - Gurupada Hazra
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal, Indore By-pass Road, Bhouri, Bhopal-462066, India
| | - Prasanta Ghorai
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal, Indore By-pass Road, Bhouri, Bhopal-462066, India
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49
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Pan X, Liu Q, Chang L, Yuan G. Ammonium iodide-promoted cyclization of ketones with DMSO and ammonium acetate for synthesis of substituted pyridines. RSC Adv 2015. [DOI: 10.1039/c5ra07584j] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
A convenient and efficient method has been developed for the construction of substituted pyridines via ammonium iodide-promoted cyclization of ketones with DMSO and ammonium acetate, employing DMSO as the source of C4 or C6.
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Affiliation(s)
- Xiaojun Pan
- School of Chemistry and Chemical Engineering
- South China University of Technology
- Guangzhou
- China
| | - Qiao Liu
- School of Chemistry and Chemical Engineering
- South China University of Technology
- Guangzhou
- China
| | - Liming Chang
- School of Chemistry and Chemical Engineering
- South China University of Technology
- Guangzhou
- China
| | - Gaoqing Yuan
- School of Chemistry and Chemical Engineering
- South China University of Technology
- Guangzhou
- China
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50
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Yadav A, Verma A, Patel S, Kumar A, Rathore V, Meenakshi, Kumar S, Kumar S. KOtBu-mediated annulation of acetonitrile with aldehyde: synthesis of substituted dihydropyridin-2(1H)-ones, pyridin-2(1H)-ones, and thiopyridin-2(1H)-ones. Chem Commun (Camb) 2015; 51:11658-61. [DOI: 10.1039/c5cc02964c] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
KOtBu-mediated annulation of acetonitrile with aldehyde was observed in which cleavage of four C(sp3)–H bonds occurred, and total eight new bonds formed.
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Affiliation(s)
- Abhimanyu Yadav
- Department of Chemistry
- Indian Institute of Science Education and Research (IISER) Bhopal
- Bhopal
- India
| | - Ajay Verma
- Department of Chemistry
- Indian Institute of Science Education and Research (IISER) Bhopal
- Bhopal
- India
| | - Saket Patel
- Department of Chemistry
- Indian Institute of Science Education and Research (IISER) Bhopal
- Bhopal
- India
| | - Amit Kumar
- Department of Chemistry
- Indian Institute of Science Education and Research (IISER) Bhopal
- Bhopal
- India
| | - Vandana Rathore
- Department of Chemistry
- Indian Institute of Science Education and Research (IISER) Bhopal
- Bhopal
- India
| | - Meenakshi
- Department of Chemistry
- Indian Institute of Science Education and Research (IISER) Bhopal
- Bhopal
- India
| | - Shailesh Kumar
- Department of Chemistry
- Indian Institute of Science Education and Research (IISER) Bhopal
- Bhopal
- India
| | - Sangit Kumar
- Department of Chemistry
- Indian Institute of Science Education and Research (IISER) Bhopal
- Bhopal
- India
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