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Brožová ZR, Dušek J, Palša N, Maixnerová J, Kamaraj R, Smutná L, Matouš P, Braeuning A, Pávek P, Kuneš J, Gathergood N, Špulák M, Pour M, Carazo A. 2-Substituted quinazolines: Partial agonistic and antagonistic ligands of the constitutive androstane receptor (CAR). Eur J Med Chem 2023; 259:115631. [PMID: 37473690 DOI: 10.1016/j.ejmech.2023.115631] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2023] [Revised: 07/05/2023] [Accepted: 07/07/2023] [Indexed: 07/22/2023]
Abstract
Following the discovery of 2-(3-methoxyphenyl)-3,4-dihydroquinazoline-4-one and 2-(3-methoxyphenyl)quinazoline-4-thione as potent, but non-specific activators of the human Constitutive Androstane Receptor (CAR, NR1I3), a series of quinazolinones substituted at the C2 phenyl ring was prepared to examine their ability to selectively modulate human CAR activity. Employing cellular and in vitro TR-FRET assays with wild-type CAR or its variant 3 (CAR3) ligand binding domains (LBD), several novel partial human CAR agonists and antagonists were identified. 2-(3-Methylphenyl) quinazolinone derivatives 7d and 8d acted as partial agonists with the recombinant CAR LBD, the former in nanomolar units (EC50 = 0.055 μM and 10.6 μM, respectively). Moreover, 7d did not activate PXR, and did not show any signs of cytotoxicity. On the other hand, 2-(4-bromophenyl)quinazoline-4-thione 7l possessed significant CAR antagonistic activity, although the compound displayed no agonistic or inverse agonistic activities. A compound possessing purely antagonistic effect was thus identified for the first time. These and related compounds may serve as a remedy in xenobiotic intoxication or, conversely, in suppression of undesirable hepatic CAR activation.
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Affiliation(s)
- Zuzana Rania Brožová
- Department of Organic and Bioorganic Chemistry, Faculty of Pharmacy in Hradec Králové, Charles University, Heyrovského 1203, 500 05, Hradec Králové, Czech Republic
| | - Jan Dušek
- Department of Pharmacology and Toxicology, Faculty of Pharmacy in Hradec Králové, Charles University, Heyrovského 1203, 500 05, Hradec Králové, Czech Republic; Department of Physiology, Faculty of Medicine in Hradec Králové, Charles University, Šimkova 870, 500 03, Hradec Králové, Czech Republic
| | - Norbert Palša
- Department of Organic and Bioorganic Chemistry, Faculty of Pharmacy in Hradec Králové, Charles University, Heyrovského 1203, 500 05, Hradec Králové, Czech Republic
| | - Jana Maixnerová
- Department of Pharmacology and Toxicology, Faculty of Pharmacy in Hradec Králové, Charles University, Heyrovského 1203, 500 05, Hradec Králové, Czech Republic
| | - Rajamanikkam Kamaraj
- Department of Pharmacology and Toxicology, Faculty of Pharmacy in Hradec Králové, Charles University, Heyrovského 1203, 500 05, Hradec Králové, Czech Republic
| | - Lucie Smutná
- Department of Pharmacology and Toxicology, Faculty of Pharmacy in Hradec Králové, Charles University, Heyrovského 1203, 500 05, Hradec Králové, Czech Republic
| | - Petr Matouš
- Department of Organic and Bioorganic Chemistry, Faculty of Pharmacy in Hradec Králové, Charles University, Heyrovského 1203, 500 05, Hradec Králové, Czech Republic
| | - Albert Braeuning
- Department of Food Safety, German Federal Institute for Risk Assessment, Max-Dohrn-Str. 8-10, 10589, Berlin, Germany
| | - Petr Pávek
- Department of Pharmacology and Toxicology, Faculty of Pharmacy in Hradec Králové, Charles University, Heyrovského 1203, 500 05, Hradec Králové, Czech Republic
| | - Jiří Kuneš
- Department of Organic and Bioorganic Chemistry, Faculty of Pharmacy in Hradec Králové, Charles University, Heyrovského 1203, 500 05, Hradec Králové, Czech Republic
| | - Nicholas Gathergood
- School of Chemistry, University of Lincoln, Joseph Banks Laboratories, Green Lane, Lincoln, Lincolnshire, LN6 7DL, United Kingdom
| | - Marcel Špulák
- Department of Organic and Bioorganic Chemistry, Faculty of Pharmacy in Hradec Králové, Charles University, Heyrovského 1203, 500 05, Hradec Králové, Czech Republic
| | - Milan Pour
- Department of Organic and Bioorganic Chemistry, Faculty of Pharmacy in Hradec Králové, Charles University, Heyrovského 1203, 500 05, Hradec Králové, Czech Republic.
| | - Alejandro Carazo
- Department of Pharmacology and Toxicology, Faculty of Pharmacy in Hradec Králové, Charles University, Heyrovského 1203, 500 05, Hradec Králové, Czech Republic.
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Popatkar BB, Sasane NA, Meshram GA. [BMPTFB]-ionic liquid as an efficient catalyst for the rapid, and eco-friendly synthesis of benzimidazole, 2-substituted benzimidazole, and benzothiazole derivatives at room temperature. SYNTHETIC COMMUN 2022. [DOI: 10.1080/00397911.2022.2142915] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
| | - Nitin A. Sasane
- Department of Chemistry, University of Mumbai, Mumbai, India
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3
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Lim JR, Chua LS, Mustaffa AA. Ionic liquids as green solvent and their applications in bioactive compounds extraction from plants. Process Biochem 2022. [DOI: 10.1016/j.procbio.2022.10.024] [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: 11/28/2022]
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4
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Dhameliya TM, Nagar PR, Bhakhar KA, Jivani HR, Shah BJ, Patel KM, Patel VS, Soni AH, Joshi LP, Gajjar ND. Recent advancements in applications of ionic liquids in synthetic construction of heterocyclic scaffolds: A spotlight. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2021.118329] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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5
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Kumar M, Pandey SK, Chaudhary N, Mishra A, Gupta D. Highly efficient method for the synthesis of substituted benzimidazoles using sodium metabisulfite adsorbed on silica gel. RESULTS IN CHEMISTRY 2022. [DOI: 10.1016/j.rechem.2022.100403] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022] Open
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6
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Zhang R, Ma R, Fu Q, Chen J, Ma Y. I 2 /PhNO 2 Mediated Synthesis of Quinazolin-4(3 H)-ones by C(CO)—C Bond Oxidative Cleavage of Acetophenones and Amination with 2-Aminobenzamides. CHINESE J ORG CHEM 2022. [DOI: 10.6023/cjoc202109014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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7
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Dong Y, Zhang J, Yang J, Yan C, Wu Y. An efficient transition-metal-free route to quinazolin-4(3 H)-ones via 2-aminobenzamides and thiols. NEW J CHEM 2021. [DOI: 10.1039/d1nj03179a] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
An efficient approach to quinazolin-4(3H)-ones was developed by a one-pot intermolecular annulation reaction of o-amino benzamides and thiols.
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Affiliation(s)
- Yibo Dong
- Henan Key Laboratory of Chemical Biology and Organic Chemistry Key Laboratory of Applied Chemistry of Henan Universities, Zhengzhou University, Zhengzhou, 450052, P. R. China
| | - Jinli Zhang
- Henan Key Laboratory of Chemical Biology and Organic Chemistry Key Laboratory of Applied Chemistry of Henan Universities, Zhengzhou University, Zhengzhou, 450052, P. R. China
- College of Chemistry, Green Catalytic Center, Zhengzhou University, Zhengzhou 450001, P. R. China
| | - Jinchen Yang
- Henan Key Laboratory of Chemical Biology and Organic Chemistry Key Laboratory of Applied Chemistry of Henan Universities, Zhengzhou University, Zhengzhou, 450052, P. R. China
| | - Congcong Yan
- College of Chemistry, Green Catalytic Center, Zhengzhou University, Zhengzhou 450001, P. R. China
| | - Yangjie Wu
- Henan Key Laboratory of Chemical Biology and Organic Chemistry Key Laboratory of Applied Chemistry of Henan Universities, Zhengzhou University, Zhengzhou, 450052, P. R. China
- College of Chemistry, Green Catalytic Center, Zhengzhou University, Zhengzhou 450001, P. R. China
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8
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Sofi FA, Bharatam PV. Synthesis of Drugs and Biorelevant N-heterocycles Employing Recent Advances in C-N Bond Formation. CURR ORG CHEM 2020. [DOI: 10.2174/1385272824999200909114144] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
C-N bond formation is a particularly important step in the generation of many
biologically relevant heterocyclic molecules. Several methods have been reported for this
purpose over the past few decades. Well-known named reactions like Ullmann-Goldberg
coupling, Buchwald-Hartwig coupling and Chan-Lam coupling are associated with the C-N
bond formation reactions. Several reviews covering this topic have already been published.
However, no comprehensive review covering the synthesis of drugs/ lead compounds using
the C-N bond formation reactions was reported. In this review, we cover many modern
methods of the C-N bond formation reactions, with special emphasis on metal-free and
green chemistry methods. We also report specific strategies adopted for the synthesis of
drugs, which involve the C-N bond formation reactions. Examples include anti-cancer,
antidepressant, anti-inflammatory, anti-atherosclerotic, anti-histaminic, antibiotics, antibacterial, anti-rheumatic,
antiepileptic and anti-diabetic agents. Many recently developed lead compounds generated using the C-N bond
formation reactions are also covered in this review. Examples include MAP kinase inhibitors, TRKs inhibitors,
Polo-like Kinase inhibitors and MPS1 inhibitors.
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Affiliation(s)
- Firdoos Ahmad Sofi
- Department of Medicinal Chemistry, National Institute of Pharmaceutical Education and Research (NIPER), Sector 67, S.A.S Nagar 160 062, Punjab, India
| | - Prasad V. Bharatam
- Department of Medicinal Chemistry, National Institute of Pharmaceutical Education and Research (NIPER), Sector 67, S.A.S Nagar 160 062, Punjab, India
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9
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Nano indium oxide-catalyzed domino reaction for the synthesis of N-alkoxylated benzimidazoles. Tetrahedron Lett 2020. [DOI: 10.1016/j.tetlet.2020.152177] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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10
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Synthesis of benzimidazoles by two methods (C–H functionalization and condensation reaction) catalyzed by α-zirconium hydrogen phosphate-based nanocatalyst. JOURNAL OF THE IRANIAN CHEMICAL SOCIETY 2020. [DOI: 10.1007/s13738-020-01884-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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11
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Geng Z, Zhang HY, Yin G, Zhang Y, Zhao J. A one-pot synthesis of benzimidazoles via aerobic oxidative condensation of benzyl alcohols with o-phenylenediamines catalyzed by [MIMPs]+Cl-/NaNO2/TEMPO. JOURNAL OF CHEMICAL RESEARCH 2020. [DOI: 10.1177/1747519820912163] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
The ionic liquid 1-methyl-3-(3-sulfopropyl)imidazolium chloride ([MIMPs]+Cl-) in combination with 2,2,6,6-tetramethylpiperidine-1-oxyl (TEMPO) and sodium nitrite (NaNO2) as a catalytic system demonstrates high efficiency in the one-pot two-step aerobic oxidative condensation of benzyl alcohols with 1,2-phenylenediamines to give benzimidazoles. Various benzimidazoles are obtained in good to excellent yields by this strategy.
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Affiliation(s)
- Zhenzhen Geng
- School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin, P.R. China
| | - Hong-yu Zhang
- School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin, P.R. China
| | - Guohui Yin
- School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin, P.R. China
| | - Yuecheng Zhang
- School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin, P.R. China
- Hebei Provincial Key Lab of Green Chemical Technology and High Efficient Energy Saving, Hebei University of Technology, Tianjin, P.R. China
| | - Jiquan Zhao
- School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin, P.R. China
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12
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Kim K, Kim HY, Oh K. ortho-Naphthoquinone-catalyzed aerobic oxidation of amines to fused pyrimidin-4(3H)-ones: a convergent synthetic route to bouchardatine and sildenafil. RSC Adv 2020; 10:31101-31105. [PMID: 35520643 PMCID: PMC9056348 DOI: 10.1039/d0ra06820a] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2020] [Accepted: 08/14/2020] [Indexed: 12/21/2022] Open
Abstract
A facile access to fused pyrimidin-4(3H)-one derivatives has been established by using the metal-free ortho-naphthoquinone-catalyzed aerobic cross-coupling reactions of amines. The utilization of two readily available amines allowed a direct coupling strategy to quinazolinone natural product, bouchardatine, as well as sildenafil (Viagra™) in a highly convergent manner. Fused pyrimidin-4(3H)-one derivatives have been accessed by using the ortho-naphthoquinone-catalyzed aerobic cross-coupling reactions of amines.![]()
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Affiliation(s)
- Kyeongha Kim
- Center for Metareceptome Research
- Graduate School of Pharmaceutical Sciences
- Chung-Ang University
- Seoul 06974
- Republic of Korea
| | - Hun Young Kim
- Center for Metareceptome Research
- Graduate School of Pharmaceutical Sciences
- Chung-Ang University
- Seoul 06974
- Republic of Korea
| | - Kyungsoo Oh
- Center for Metareceptome Research
- Graduate School of Pharmaceutical Sciences
- Chung-Ang University
- Seoul 06974
- Republic of Korea
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13
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Shaikh A, Ravi O, Pushpa Ragini S, Sadhana N, Reddy Bathula S. Benzimidazoles and benzothiazoles from styrenes and N-vinylimidazole via palladium catalysed oxidative C C and C N bond cleavage. Tetrahedron Lett 2020. [DOI: 10.1016/j.tetlet.2019.151356] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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14
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Ghosh S, Jana CK. Metal free biomimetic deaminative direct C-C coupling of unprotected primary amines with active methylene compounds. Org Biomol Chem 2019; 17:10153-10157. [PMID: 31774427 DOI: 10.1039/c9ob02163a] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
An unprecedented direct C-C coupling reaction of unprotected primary amines with active methylene compounds is reported. The reaction involves a biomimetic deamination of amines which was achieved under conditions free of metallic reagents and strong oxidizing agents. A wide range of primary amines was reacted with different active methylene compounds to provide structurally diverse trisubstituted alkenes and dihydropyridines. A kinetic study revealed an activation barrier of 10.1 kcal mol-1 for the conversion of a key intermediate of the reaction.
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Affiliation(s)
- Santanu Ghosh
- Department of Chemistry, Indian Institute of Technology Guwahati, 780139, India.
| | - Chandan K Jana
- Department of Chemistry, Indian Institute of Technology Guwahati, 780139, India.
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15
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Ram S, Shaifali, Chauhan AS, Sheetal, Sharma AK, Das P. Polystyrene‐Supported Palladium (Pd@PS)‐Catalyzed Carbonylative Annulation of Aryl Iodides Using Oxalic Acid as a Sustainable CO Source for the Synthesis of 2‐Aryl Quinazolinones. Chemistry 2019; 25:14506-14511. [DOI: 10.1002/chem.201902776] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2019] [Indexed: 12/16/2022]
Affiliation(s)
- Shankar Ram
- Natural Product Chemistry & Process Development Division CSIR-Institute of Himalayan Bioresource Technology Palampur 176061 HP India
- Academy of Scientific & Innovative Research, CSIR-IHBT Palampur- 176061 H.P India
| | - Shaifali
- Natural Product Chemistry & Process Development Division CSIR-Institute of Himalayan Bioresource Technology Palampur 176061 HP India
- Academy of Scientific & Innovative Research, CSIR-IHBT Palampur- 176061 H.P India
| | - Arvind Singh Chauhan
- Natural Product Chemistry & Process Development Division CSIR-Institute of Himalayan Bioresource Technology Palampur 176061 HP India
- Academy of Scientific & Innovative Research, CSIR-IHBT Palampur- 176061 H.P India
| | - Sheetal
- Natural Product Chemistry & Process Development Division CSIR-Institute of Himalayan Bioresource Technology Palampur 176061 HP India
- Academy of Scientific & Innovative Research, CSIR-IHBT Palampur- 176061 H.P India
| | - Ajay Kumar Sharma
- Natural Product Chemistry & Process Development Division CSIR-Institute of Himalayan Bioresource Technology Palampur 176061 HP India
- Academy of Scientific & Innovative Research, CSIR-IHBT Palampur- 176061 H.P India
| | - Pralay Das
- Natural Product Chemistry & Process Development Division CSIR-Institute of Himalayan Bioresource Technology Palampur 176061 HP India
- Academy of Scientific & Innovative Research, CSIR-IHBT Palampur- 176061 H.P India
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16
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Xia Q, Shi Z, Yuan J, Bian Q, Xu Y, Liu B, Huang Y, Yang X, Xu H. Visible‐Light‐Enabled Selective Oxidation of Primary Alcohols through Hydrogen‐Atom Transfer and its Application in the Synthesis of Quinazolinones. ASIAN J ORG CHEM 2019. [DOI: 10.1002/ajoc.201900491] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Qiangqiang Xia
- Institute of Functional Organic Molecular EngineeringCollege of Chemistry and Chemical EngineeringHenan University Kaifeng 475004 China
| | - Zuodong Shi
- Institute of Functional Organic Molecular EngineeringCollege of Chemistry and Chemical EngineeringHenan University Kaifeng 475004 China
| | - Jiangpei Yuan
- Institute of Functional Organic Molecular EngineeringCollege of Chemistry and Chemical EngineeringHenan University Kaifeng 475004 China
| | - Qilong Bian
- Institute of Functional Organic Molecular EngineeringCollege of Chemistry and Chemical EngineeringHenan University Kaifeng 475004 China
| | - Yuanqing Xu
- Institute of Functional Organic Molecular EngineeringCollege of Chemistry and Chemical EngineeringHenan University Kaifeng 475004 China
| | - Baoying Liu
- Institute of Functional Organic Molecular EngineeringCollege of Chemistry and Chemical EngineeringHenan University Kaifeng 475004 China
| | - Yongwei Huang
- Institute of Functional Organic Molecular EngineeringCollege of Chemistry and Chemical EngineeringHenan University Kaifeng 475004 China
| | - Xiaobo Yang
- Institute of Catalysis for Energy and EnvironmentCollege ofChemistry and Chemical EngineeringShenyang Normal University Shenyang, Liaoning 110034 China
| | - Hao Xu
- Institute of Functional Organic Molecular EngineeringCollege of Chemistry and Chemical EngineeringHenan University Kaifeng 475004 China
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17
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Kaur N, Bhardwaj P, Devi M, Verma Y, Ahlawat N, Grewal P. Ionic Liquids for the Synthesis of Five-Membered N,N-, N,N,N- and N,N,N,NHeterocycles. CURR ORG CHEM 2019. [DOI: 10.2174/1385272823666190717101741] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Due to special properties of ILs (Ionic Liquids) like their wide liquid range, good solvating ability, negligible vapour pressure, non-inflammability, environment friendly medium, high thermal stability, easy recycling and rate promoters etc. they are used in organic synthesis. The investigation for the replacement of organic solvents in organic synthesis is a growing area of interest due to increasing environmental issues. Therefore, ionic liquids have attracted the attention of chemists and act as a catalyst and reaction medium in organic reaction with high activity. There is no doubt that ionic liquids have become a major subject of study for modern chemistry. In comparison to traditional processes the use of ionic liquids resulted in improved, complimentary or alternative selectivities in organic synthesis. The present manuscript reported the synthesis of multiple nitrogen containing five-membered heterocyclic compounds using ionic liquids. This review covered interesting discoveries in the past few years.
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Affiliation(s)
- Navjeet Kaur
- Department of Chemistry, Banasthali Vidyapith, Banasthali-304022 (Rajasthan), India
| | - Pranshu Bhardwaj
- Department of Chemistry, Banasthali Vidyapith, Banasthali-304022 (Rajasthan), India
| | - Meenu Devi
- Department of Chemistry, Banasthali Vidyapith, Banasthali-304022 (Rajasthan), India
| | - Yamini Verma
- Department of Chemistry, Banasthali Vidyapith, Banasthali-304022 (Rajasthan), India
| | - Neha Ahlawat
- Department of Chemistry, Banasthali Vidyapith, Banasthali-304022 (Rajasthan), India
| | - Pooja Grewal
- Department of Chemistry, Banasthali Vidyapith, Banasthali-304022 (Rajasthan), India
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19
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Zhan Z, Luo N, Ma H, He J, Lu G, Cui X, Huang G. One‐pot Synthesis of 1‐((methylthio)methyl)‐2‐phenyl‐1H‐benzo[d]imidazole from O‐phenylenediamine and Aldehyde by Elemental Sulfur. ChemistrySelect 2019. [DOI: 10.1002/slct.201901711] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Zhenzhen Zhan
- State Key Laboratory of Applied Organic Chemistry Key Laboratory of Nonferrous Metal ChemistryResources Utilization of Gansu Province Department of Chemistry Lanzhou University Lanzhou P. R. China
| | - Nan Luo
- State Key Laboratory of Applied Organic Chemistry Key Laboratory of Nonferrous Metal ChemistryResources Utilization of Gansu Province Department of Chemistry Lanzhou University Lanzhou P. R. China
| | - Haojie Ma
- College of Chemistry and Chemical EngineeringShaanxi Key laboratory of Chemical Reaction Engineering Yan'an University, Yan'an, Shaanxi Province 716000 P.R.China
| | - Jianping He
- State Key Laboratory of Applied Organic Chemistry Key Laboratory of Nonferrous Metal ChemistryResources Utilization of Gansu Province Department of Chemistry Lanzhou University Lanzhou P. R. China
| | - Guoqiang Lu
- State Key Laboratory of Applied Organic Chemistry Key Laboratory of Nonferrous Metal ChemistryResources Utilization of Gansu Province Department of Chemistry Lanzhou University Lanzhou P. R. China
| | - Xinfeng Cui
- State Key Laboratory of Applied Organic Chemistry Key Laboratory of Nonferrous Metal ChemistryResources Utilization of Gansu Province Department of Chemistry Lanzhou University Lanzhou P. R. China
| | - Guosheng Huang
- State Key Laboratory of Applied Organic Chemistry Key Laboratory of Nonferrous Metal ChemistryResources Utilization of Gansu Province Department of Chemistry Lanzhou University Lanzhou P. R. China
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20
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Li G, He R, Liu Q, Wang Z, Liu Y, Wang Q. Formation of Amidinyl Radicals via Visible-Light-Promoted Reduction of N-Phenyl Amidoxime Esters and Application to the Synthesis of 2-Substituted Benzimidazoles. J Org Chem 2019; 84:8646-8660. [PMID: 31198038 DOI: 10.1021/acs.joc.9b01158] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
We have developed a new method for the synthesis of 2-substituted benzimidazoles via amidinyl radicals generated by visible-light-promoted reduction of N-phenyl amidoxime esters in the presence of an iridium photocatalyst. This is the first report of the use of N-phenyl amidoxime esters as amidinyl radical precursors, and the first use of substituted benzene rings as amidinyl radical acceptors. This method widens the application range of substrates and overcomes the shortcomings of the traditional methods for the synthesis of 2-substituted benzimidazoles, which requires harsh reaction conditions, involves difficult-to-prepare substituted o-phenylenediamine substrates, and produces acidic waste.
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Affiliation(s)
- Gang Li
- State Key Laboratory of Elemento-Organic Chemistry, Research Institute of Elemento-Organic Chemistry, College of Chemistry, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin) , Nankai University , Tianjin 300071 , China
| | - Ru He
- State Key Laboratory of Elemento-Organic Chemistry, Research Institute of Elemento-Organic Chemistry, College of Chemistry, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin) , Nankai University , Tianjin 300071 , China
| | - Qiang Liu
- State Key Laboratory of Elemento-Organic Chemistry, Research Institute of Elemento-Organic Chemistry, College of Chemistry, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin) , Nankai University , Tianjin 300071 , China
| | - Ziwen Wang
- Tianjin Key Laboratory of Structure and Performance for Functional Molecules, MOE Key Laboratory of Inorganic-Organic Hybrid Functional Material Chemistry, College of Chemistry , Tianjin Normal University , Tianjin 300387 , China
| | - Yuxiu Liu
- State Key Laboratory of Elemento-Organic Chemistry, Research Institute of Elemento-Organic Chemistry, College of Chemistry, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin) , Nankai University , Tianjin 300071 , China
| | - Qingmin Wang
- State Key Laboratory of Elemento-Organic Chemistry, Research Institute of Elemento-Organic Chemistry, College of Chemistry, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin) , Nankai University , Tianjin 300071 , China
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21
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Kaur N. Ionic Liquids: A Versatile Medium for the Synthesis of Six-membered Two Nitrogen- Containing Heterocycles. CURR ORG CHEM 2019. [DOI: 10.2174/1385272823666190111152917] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Due to special properties of ILs (ionic liquids) like their wide liquid range, good solvating ability, negligible vapour pressure, non-inflammability, environmentfriendly medium, high thermal stability, easy recycling and rate promoters etc. they are used in organic synthesis. Therefore, ionic liquids have attracted the attention of chemists and act as a catalyst and reaction medium in organic reaction with high activity. There is no doubt that ionic liquids have become a major subject of study for modern chemistry. More publications in the field have been observed each year, although there is some evidence that this is beginning to plateau at approximately 3500 papers each year. They have been the subject of several major reviews and books, dealing with different applications and aspects of their behavior. Highly efficient methods are explored for the preparation of six-membered two nitrogen-containing heterocycles with the application of IL as a catalyst and reaction medium from 1893 to 2018.
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Affiliation(s)
- Navjeet Kaur
- Department of Chemistry, Banasthali Vidyapith, Banasthali-304022 (Rajasthan), India
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22
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Affiliation(s)
- Navjeet Kaur
- Department of Chemistry, Banasthali Vidyapith, Banasthali, Rajasthan, India
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23
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Gavin JT, Annor-Gyamfi JK, Bunce RA. Quinazolin-4(3 H)-ones and 5,6-Dihydropyrimidin-4(3 H)-ones from β-Aminoamides and Orthoesters. Molecules 2018; 23:molecules23112925. [PMID: 30423947 PMCID: PMC6278269 DOI: 10.3390/molecules23112925] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2018] [Accepted: 11/08/2018] [Indexed: 02/07/2023] Open
Abstract
Quinazolin-4(3H)-ones have been prepared in one step from 2-aminobenzamides and orthoesters in the presence of acetic acid. Simple 2-aminobenzamides were easily converted to the heterocycles by refluxing in absolute ethanol with 1.5 equivalents of the orthoester and 2 equivalents of acetic acid for 12–24 h. Ring-substituted and hindered 2-aminobenzamides as well as cases incorporating an additional basic nitrogen required pressure tube conditions with 3 equivalents each of the orthoester and acetic acid in ethanol at 110 °C for 12–72 h. The reaction was tolerant towards functionality on the benzamide and a range of structures was accessible. Workup involved removal of the solvent under vacuum and either recrystallization from ethanol or trituration with ether-pentane. Several 5,6-dihydropyrimidin-4(3H)-ones were also prepared from 3-amino-2,2-dimethylpropionamide. All products were characterized by melting point, FT-IR, 1H-NMR, 13C-NMR, and HRMS.
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Affiliation(s)
- Joshua T Gavin
- Department of Chemistry, Oklahoma State University, Stillwater, OK 74078-3071, USA.
| | - Joel K Annor-Gyamfi
- Department of Chemistry, Oklahoma State University, Stillwater, OK 74078-3071, USA.
| | - Richard A Bunce
- Department of Chemistry, Oklahoma State University, Stillwater, OK 74078-3071, USA.
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24
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Dandia A, Sharma R, Indora A, Parewa V. Kosmotropes Perturbation and Ambiphilic Dual Activation: Responsible Features for the Construction of C-N Bond towards the Synthesis of Quinazolin-4(3H
)-ones in Water. ChemistrySelect 2018. [DOI: 10.1002/slct.201801224] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Anshu Dandia
- Centre of Advanced Studies; Department of Chemistry; University of Rajasthan, Jaipur; India
| | - Ruchi Sharma
- Centre of Advanced Studies; Department of Chemistry; University of Rajasthan, Jaipur; India
| | - Aayushi Indora
- Centre of Advanced Studies; Department of Chemistry; University of Rajasthan, Jaipur; India
| | - Vijay Parewa
- Centre of Advanced Studies; Department of Chemistry; University of Rajasthan, Jaipur; India
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