1
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Zhou X, Qian F, Zhou W, Wang A, Hou T, Tian X, Ji S, He M, Qian J. Cooperation between the Cu + and Cu 2+ species in CuCoAl layered double hydroxide and the substrate promoting effect afford a really simple protocol for the efficient synthesis of quinazolines. Org Biomol Chem 2024; 22:4494-4501. [PMID: 38742377 DOI: 10.1039/d4ob00481g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/16/2024]
Abstract
In this study, a really simple and efficient catalytic protocol for the construction of quinazolines from alcohol and diamine has been developed based on CuCoAl layered double hydroxide (CuCoAl-LDH). The developed CuCoAl-LDH catalyst could accelerate the cascade reactions without any additives and tolerate various alcohols with satisfactory yields. Cooperation between the Cu+ and Cu2+ species in CuCoAl-LDH was observed in the cascade reaction, and they are believed to be responsible for the oxidation of alcohol and dehydrogenation of the intermediate, respectively. The promoting effect of the substrate diamine was observed in the oxidation of alcohol, which simplifies the reaction system by eliminating the requirement for a base additive. The catalytic system exhibited highly practical potential for the synthesis of quinazolines, as demonstrated through recyclability investigations and scale-up experiments. A possible catalytic mechanism has been proposed based on a series of control experiments and EPR analysis.
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Affiliation(s)
- Xue Zhou
- Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, Changzhou University, 213164 Changzhou, China
| | - Fei Qian
- Jiangsu Lingfei Chemical Co., LTD, Wuxi 214264, China
| | - Weiyou Zhou
- Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, Changzhou University, 213164 Changzhou, China
| | - Anwei Wang
- Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, Changzhou University, 213164 Changzhou, China
| | - Tao Hou
- Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, Changzhou University, 213164 Changzhou, China
| | - Xiaoting Tian
- Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, Changzhou University, 213164 Changzhou, China
| | - Shuliang Ji
- Jiangsu Yabang Dyestuff Co., LTD, 213163 Changzhou, China
| | - Mingyang He
- Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, Changzhou University, 213164 Changzhou, China
| | - Junfeng Qian
- Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, Changzhou University, 213164 Changzhou, China
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2
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Arumugam A, Senadi GC. Visible-light photocatalyzed C-N bond activation of tertiary amines: a three-component approach to synthesize quinazolines. Org Biomol Chem 2024; 22:1245-1253. [PMID: 38248577 DOI: 10.1039/d3ob02067c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2024]
Abstract
A metal-free three-component approach has been developed to prepare 2,4-disubstituted quinazolines from o-acylanilines, trialkylamines and ammonium chloride under visible-light using eosin Y as the photocatalyst. The notable features of this work include (i) the use of tertiary amines as an alkyl synthon and triethanolamine as a C2-OH synthon; (ii) good functional group tolerance with 52%-98% yields; (iii) proof of concept with o-amino benzaldehyde as a substrate to deliver 2-methyl quinazoline 3pa; and (iv) gram-scale synthesis of compounds 3ga, 3ja and 3ma. A reductive quenching mechanism was proposed based on the control studies and redox potential values.
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Affiliation(s)
- Ajithkumar Arumugam
- Department of Chemistry, College of Engineering and Technology, SRM Institute of Science and Technology, SRM Nagar, Kattankulathur - 603 203, Chengalpattu District, Tamil Nadu, India.
| | - Gopal Chandru Senadi
- Department of Chemistry, College of Engineering and Technology, SRM Institute of Science and Technology, SRM Nagar, Kattankulathur - 603 203, Chengalpattu District, Tamil Nadu, India.
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3
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Sundar S, Veerappan T, Pennamuthiriyan A, Rengan R. Arene Ruthenium(II)-Catalyzed Sustainable Synthesis of 2,4-Disubstituted Quinazolines via Acceptorless Dual Dehydrogenative Coupling of Alcohols. J Org Chem 2023. [PMID: 38029325 DOI: 10.1021/acs.joc.3c01808] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2023]
Abstract
We demonstrate an efficient and sustainable strategy for the direct synthesis of 2,4-disubstituted quinazolines by arene Ru(II)benzhydrazone complex via the eco-friendly sequential acceptorless dehydrogenative coupling of 2-aminobenzhydrol derivatives and benzyl alcohols for the first time. The new ruthenium(II) complex of the general formula [(η6-p-cymene)Ru(L1)Cl] (L1-acenaphthenequinone hydrazone) has been synthesized and characterized by analytical, spectroscopic, and single-crystal X-ray diffraction techniques. A broad spectrum of 2,4-disubstituted quinazolines have been successfully derived (25 examples) from 2-aminobenzhydrol derivatives with various benzyl alcohols using 1 mol % of catalyst loading in the presence of NH4OAc. The present protocol is highly selective and produces a maximum yield of 95% under mild reaction conditions. The different reaction intermediates detected through control experiments such as aldehyde, 2-aminobenzophenone, benzylidene(amino)phenylmethanone, and 1,2-dihydroquinazoline are isolated and authenticated by the NMR study. Gratifyingly, the coupling reaction is a simple and atom economic with the release of water and hydrogen gas as the only byproducts. A gram-scale synthesis of 2-(4-methoxyphenyl)-4-phenylquinazoline illustrates the synthetic utility of the present protocol.
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Affiliation(s)
- Saranya Sundar
- PG and Research Department of Chemistry, Seethalakshmi Ramaswami College, Affiliated to Bharathidasan University, Tiruchirappalli 620002, Tamilnadu, India
| | - Tamilthendral Veerappan
- Centre for Organometallic Chemistry, School of Chemistry, Bharathidasan University, Tiruchirappalli 620024, Tamilnadu, India
| | - Anandaraj Pennamuthiriyan
- Centre for Organometallic Chemistry, School of Chemistry, Bharathidasan University, Tiruchirappalli 620024, Tamilnadu, India
| | - Ramesh Rengan
- Centre for Organometallic Chemistry, School of Chemistry, Bharathidasan University, Tiruchirappalli 620024, Tamilnadu, India
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4
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Dutta N, Dutta B, Dutta A, Sarma B, Sarma D. Room temperature ligand-free Cu 2O-H 2O 2 catalyzed tandem oxidative synthesis of quinazoline-4(3 H)-one and quinazoline derivatives. Org Biomol Chem 2023; 21:748-753. [PMID: 36602007 DOI: 10.1039/d2ob02085h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
An efficient and simple copper catalytic system has been developed for the synthesis of medicinally important 2-substituted quinazoline-4(3H)-ones from 2-aminobenzonitrile and benzyl alcohol derivatives and additionally 2-substituted quinazolines from 2-aminobenzylamine and benzaldehyde derivatives. Mild oxidant H2O2 was utilized, providing excellent product yields. The molecular structure of one of the compounds was substantiated through SC-XRD. The versatility of the protocol was demonstrated through gram-scale syntheses.
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Affiliation(s)
- Nilakshi Dutta
- Department of Chemistry, Dibrugarh University, Dibrugarh-786004, Assam, India.
| | - Bidyutjyoti Dutta
- Department of Chemistry, Dibrugarh University, Dibrugarh-786004, Assam, India.
| | - Apurba Dutta
- Department of Chemistry, DHSK College, Dibrugarh-786001, Assam, India
| | - Bipul Sarma
- Department of Chemical Sciences, Tezpur University, Tezpur-784028, Assam, India
| | - Diganta Sarma
- Department of Chemistry, Dibrugarh University, Dibrugarh-786004, Assam, India.
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5
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Kouser M, Chowhan B, Sharma N, Gupta M. Transformation of Waste Toner Powder into Valuable Fe 2O 3 Nanoparticles for the Preparation of Recyclable Co(II)-NH 2-SiO 2@Fe 2O 3 and Its Applications in the Synthesis of Polyhydroquinoline and Quinazoline Derivatives. ACS OMEGA 2022; 7:47619-47633. [PMID: 36591190 PMCID: PMC9798778 DOI: 10.1021/acsomega.2c04512] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/18/2022] [Accepted: 11/23/2022] [Indexed: 06/17/2023]
Abstract
Ecological recycling of waste materials by converting them into valuable nanomaterials can be considered a great opportunity for management and fortification of the environment. This article deals with the environment-friendly synthesis of Fe2O3 nanoparticles (composed of α-Fe2O3 and γ-Fe2O3) using waste toner powder (WTP) via calcination. Fe2O3 nanoparticles were then coated with silica using TEOS, functionalized with silane (APTMS), and immobilized with Co(II) to get the desired biocompatible and cost-effective catalyst, i.e., Co(II)-NH2-SiO2@Fe2O3. The structural features in terms of evaluation of morphology, particle size, presence of functional groups, polycrystallinity, and metal content over the surface were determined by Fourier transform infrared spectroscopy (FTIR), powder X-ray diffraction (P-XRD), field emission gun-scanning electron microscopy (FEG-SEM), energy-dispersive X-ray analysis (EDX), high resolution-transmission electron microscopy (HR-TEM), X-ray photoelectron spectroscopy (XPS), thermogravimetric analysis (TGA), vibrating sample magnetometry (VSM), Brunauer-Emmett-Teller (BET) analysis, and inductively coupled plasma-atomic emission spectroscopy (ICP-AES) studies. XPS confirmed the (II) oxidation state of Co, and ICP-AES and EDX supported the loading of Co(II) over the surface of the support. P-XRD proved the polycrystalline nature of the Fe2O3 core and even after functionalization. In comparison to previously reported methods, Co(II)-NH2-SiO2@Fe2O3 provides an eco-friendly procedure for the synthesis of polyhydroquinoline and quinazoline derivatives with several advantages such as a short reaction time and high yield. Polyhydroquinoline and quinazoline derivatives are important scaffolds in pharmacologically active compounds. Moreover, the developed nanocatalyst was recyclable, and HR-TEM and P-XRD confirmed the agglomeration in the recycled catalyst resulted in a decrease in yield after the fifth run. The present protocol provides a new strategy of recycling e-waste into a heterogeneous nanocatalyst for the synthesis of heterocycles via multicomponent reactions. This made the synthesized catalyst convincingly more superior to other previously reported catalysts for organic transformations.
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6
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A comparative DFT study on the π-π stacking interaction of some N-based organic fused heterocycles with eclipsed and staggered conformations. J INDIAN CHEM SOC 2022. [DOI: 10.1016/j.jics.2022.100698] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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7
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Martos M, Pastor IM. Iron‐Based Imidazolium Salt as Dual Lewis Acid and Redox Catalyst for the Aerobic Synthesis of Quinazolines. European J Org Chem 2022. [DOI: 10.1002/ejoc.202200839] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Mario Martos
- University of Alicante: Universitat d'Alacant Organic Chemistry Ctra. San Vicente del Raspeig, s/n 03690 San Vicente del Raspeig - Alicante SPAIN
| | - Isidro Manuel Pastor
- University of Alicante: Universitat d'Alacant Organic Chemistry Ctra. San Vicente del Raspeig s/n 03690 San Vicente del Raspeig - Alicante SPAIN
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8
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Dasaradhan C, Nawaz Khan FR. Synthesis of 2, 4-Disubstituted Quinazolines via One-Pot Three-Component Assembly. Polycycl Aromat Compd 2022. [DOI: 10.1080/10406638.2021.1876112] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Affiliation(s)
- Changalaraya Dasaradhan
- Organic and Medicinal Chemistry Research Laboratory, Organic Chemistry Division, School of Advanced Sciences, VIT University, Vellore, India
| | - Fazlur-Rahman Nawaz Khan
- Organic and Medicinal Chemistry Research Laboratory, Organic Chemistry Division, School of Advanced Sciences, VIT University, Vellore, India
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9
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10
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Maruoka H, Masumoto E. Spiro Heterocycles: Synthesis and Application of Spiro Pyrazol-3-one Derivatives. HETEROCYCLES 2022. [DOI: 10.3987/rev-21-975] [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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11
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Zhang SQ, Cui Y, Guo B, Young DJ, Xu Z, Li HX. Efficient synthesis of quinazolines by the iron-catalyzed acceptorless dehydrogenative coupling of (2-aminophenyl)methanols and benzamides. Tetrahedron 2021. [DOI: 10.1016/j.tet.2020.131825] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
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12
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Naruto H, Togo H. Preparation of 4-arylquinazolines with o-(N-alkyl,N-p-tosyl)aminobenzonitriles, aryllithiums, and NIS. Org Biomol Chem 2020; 18:5666-5676. [PMID: 32662475 DOI: 10.1039/d0ob01223h] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
The treatment of o-(N-alkyl,N-p-tosyl)aminobenzonitriles with aryllithiums, followed by the reaction with water, NIS under irradiation with a fluorescent lamp, and then tBuOK gave 2-alkyl-4-arylquinazolines or 4-arylquinazolines in good to moderate yields. The present reaction proceeds through the formation of N-iodoimines from imines with NIS, the generation of iminyl radicals, the 1,6-H shift by iminyl radicals, the cyclization via 6-exo-tet mode, and finally the elimination of p-toluenesulfinate to generate 2-alkyl-4-arylquinazolines or 4-arylquinazolines.
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Affiliation(s)
- Hiroki Naruto
- Graduate School of Science, Chiba University, Yayoi-cho 1-33, Inage-ku, Chiba 263-8522, Japan
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13
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Kamanna K, Khatavi SY. Microwave-accelerated Carbon-carbon and Carbon-heteroatom Bond Formation via Multi-component Reactions: A Brief Overview. CURRENT MICROWAVE CHEMISTRY 2020. [DOI: 10.2174/2213346107666200218124147] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Multi-Component Reactions (MCRs) have emerged as an excellent tool in organic chemistry
for the synthesis of various bioactive molecules. Among these, one-pot MCRs are included, in
which organic reactants react with domino in a single-step process. This has become an alternative
platform for the organic chemists, because of their simple operation, less purification methods, no side
product and faster reaction time. One of the important applications of the MCRs can be drawn in carbon-
carbon (C-C) and carbon-heteroatom (C-X; X = N, O, S) bond formation, which is extensively
used by the organic chemists to generate bioactive or useful material synthesis. Some of the key carbon-
carbon bond forming reactions are Grignard, Wittig, Enolate alkylation, Aldol, Claisen condensation,
Michael and more organic reactions. Alternatively, carbon-heteroatoms containing C-N, C-O,
and C-S bond are also found more important and present in various heterocyclic compounds, which
are of biological, pharmaceutical, and material interest. Thus, there is a clear scope for the discovery
and development of cleaner reaction, faster reaction rate, atom economy and efficient one-pot synthesis
for sustainable production of diverse and structurally complex organic molecules. Reactions that
required hours to run completely in a conventional method can now be carried out within minutes.
Thus, the application of microwave (MW) radiation in organic synthesis has become more promising
considerable amount in resource-friendly and eco-friendly processes. The technique of microwaveassisted
organic synthesis (MAOS) has successfully been employed in various material syntheses,
such as transition metal-catalyzed cross-coupling, dipolar cycloaddition reaction, biomolecule synthesis,
polymer formation, and the nanoparticle synthesis. The application of the microwave-technique in
carbon-carbon and carbon-heteroatom bond formations via MCRs with major reported literature examples
are discussed in this review.
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Affiliation(s)
- Kantharaju Kamanna
- Department of Chemistry, Peptide, and Medicinal Chemistry Research Laboratory, Rani Channamma University, P-B, NH-4, Belagavi-591156, Karnataka, India
| | - Santosh Y. Khatavi
- Department of Chemistry, Peptide, and Medicinal Chemistry Research Laboratory, Rani Channamma University, P-B, NH-4, Belagavi-591156, Karnataka, India
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14
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Reeta, Rangarajan TM, Singh RP, Singh RP, Singh M. An Easy Access to Oxime Ethers by
Pd‐Catalyzed
C—O
Cross‐Coupling
of Activated Aryl Bromides with Ketoximes and Chalcone Oximes. CHINESE J CHEM 2020. [DOI: 10.1002/cjoc.201900540] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Reeta
- Centre for Fire, Explosive and Environment Safety, DRDO Delhi India
- Department of ChemistryUniversity of Delhi Delhi India
| | - T. M. Rangarajan
- Department of ChemistrySri Venkateswara College, University of Delhi New Delhi India
| | - Raj Pal Singh
- Centre for Fire, Explosive and Environment Safety, DRDO Delhi India
| | - R. P. Singh
- Department of ChemistrySri Venkateswara College, University of Delhi New Delhi India
| | - Manjula Singh
- Department of ChemistryShivaji College, University of Delhi New Delhi India
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15
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Reeta R, Rangarajan TM, Kaushik K, Singh RP, Singh M, Singh RP. Efficient solvent- and temperature-tuned access to aldoxime ethers and phenolic functions by Pd-catalyzed C–O cross-coupling of aldoximes with aryl bromides and bromo-chalcones. NEW J CHEM 2020. [DOI: 10.1039/c9nj05124d] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
A single method with a functionality switching option, to access oxime ethers and phenols, was developed for the first time for the Pd-catalyzed C–O cross-coupling of aryl bromides and bromo-chalcones with aldoximes.
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Affiliation(s)
- Reeta Reeta
- Centre for Fire, Explosive and Environment Safety
- DRDO
- Delhi
- India
- Department of Chemistry
| | - T. M. Rangarajan
- Department of Chemistry
- Sri Venkateswara College
- University of Delhi
- New Delhi
- India
| | - Kumar Kaushik
- Centre for Fire, Explosive and Environment Safety
- DRDO
- Delhi
- India
| | - Rishi Pal Singh
- Department of Chemistry
- Sri Venkateswara College
- University of Delhi
- New Delhi
- India
| | - Manjula Singh
- Department of Chemistry, Shivaji College, University of Delhi
- New Delhi
- India
| | - Raj Pal Singh
- Centre for Fire, Explosive and Environment Safety
- DRDO
- Delhi
- India
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16
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Chan CK, Lai CY, Wang CC. TMSOTf-catalyzed synthesis of substituted quinazolines using hexamethyldisilazane as a nitrogen source under neat and microwave irradiation conditions. Org Biomol Chem 2020; 18:7201-7212. [DOI: 10.1039/d0ob01507e] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
An efficient synthetic route for the synthesis of substituted quinazolines under neat, metal-free and microwave irradiation conditions has been developed by using TMSOTf as an acid catalyst and HMDS as a nitrogen source.
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Affiliation(s)
| | - Chien-Yu Lai
- Institute of Chemistry
- Academia Sinica
- Taipei 115
- Taiwan
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17
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Efficient and green sulfamic acid catalyzed synthesis of new 1,2-dihydroquinazoline derivatives with antibacterial potential. ARAB J CHEM 2019. [DOI: 10.1016/j.arabjc.2015.10.013] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023] Open
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18
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Gok D. One‐pot three‐component synthesis of novel 2‐(3‐nitro‐phenyl)‐quinazoline‐4‐carboxylic acid derivatives. J Heterocycl Chem 2019. [DOI: 10.1002/jhet.3731] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Dervis Gok
- Department of Chemistry and Chemical Processing Technologies, Kütahya Technical Sciences Vocational SchoolDumlupinar University Kutahya Turkey
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19
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Gudimella KK, Bonige KB, Gundla R, Katari NK, Yamajala B, Battula VR. 2,4‐Diphenyl‐1,2‐dihydroquinazoline Derivatives: Synthesis, Anticancer Activity and Docking Studies. ChemistrySelect 2019. [DOI: 10.1002/slct.201902609] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Krishna Kanthi Gudimella
- Department of Engineering ChemistryAndhra University College of Engineering Visakhapatnam 530 003
- Department of ChemistrySchool of ScienceGITAM deemed to be University Hyderabad 502329
| | - Kishore Babu Bonige
- Department of Engineering ChemistryAndhra University College of Engineering Visakhapatnam 530 003
| | - Rambabu Gundla
- Department of ChemistrySchool of ScienceGITAM deemed to be University Hyderabad 502329
| | - Naresh Kumar Katari
- Department of ChemistrySchool of ScienceGITAM deemed to be University Hyderabad 502329
| | - Bhaskar Yamajala
- Department of ChemistrySchool of ScienceGITAM deemed to be University Hyderabad 502329
| | - Venkateswara Rao Battula
- Department of Engineering ChemistryAndhra University College of Engineering Visakhapatnam 530 003
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20
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Vargas DF, Larghi EL, Kaufman TS. The 6π-azaelectrocyclization of azatrienes. Synthetic applications in natural products, bioactive heterocycles, and related fields. Nat Prod Rep 2019; 36:354-401. [PMID: 30090891 DOI: 10.1039/c8np00014j] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Covering: 2006 to 2018 The application of the 6π-azaelectrocyclization of azatrienes as a key strategy for the synthesis of natural products, their analogs and related bioactive or biomedically-relevant compounds (from 2006 to date) is comprehensively reviewed. Details about reaction optimization studies, relevant reaction mechanisms and conditions are also discussed.
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Affiliation(s)
- Didier F Vargas
- Instituto de Química Rosario (IQUIR, CONICET-UNR), Facultad de Ciencias Bioquímicas y Farmacéuticas - Universidad Nacional de Rosario, Suipacha 531, 2000 Rosario, Argentina.
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21
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Wang Q, Lv M, Liu J, Li Y, Xu Q, Zhang X, Cao H. Efficient Synthesis of Quinazolinones by Transition-Metal-Free Direct Aerobic Oxidative Cascade Annulation of Alcohols with o-Aminoarylnitriles. CHEMSUSCHEM 2019; 12:3043-3048. [PMID: 30791215 DOI: 10.1002/cssc.201900265] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/27/2019] [Revised: 02/20/2019] [Indexed: 06/09/2023]
Abstract
A mild and atom-economic method was developed for direct and efficient synthesis of quinazolinones through a transition-metal-free aerobic oxidative cascade annulation reaction of widely available o-aminoarylnitriles and alcohols. Air could be employed as an effective oxidant under mild conditions, generating water as the only byproduct. Possibly owing to the "cesium effect", the water-soluble base CsOH was found to be crucial in all key steps of the reaction mechanism. Because a wide range of substrates can be used to prepare substituted quinazolinones without contamination by transition-metal residues, this method may be of interest for application in pharmaceutical synthesis. Possible reaction paths were also proposed according to control reactions.
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Affiliation(s)
- Qi Wang
- School of Chemistry and Chemical Engineering, Institute of Pesticide of School of Horticulture and Plant Protection, Yangzhou University, Yangzhou, Jiangsu, 225002, P.R. China
| | - Miao Lv
- School of Chemistry and Chemical Engineering, Institute of Pesticide of School of Horticulture and Plant Protection, Yangzhou University, Yangzhou, Jiangsu, 225002, P.R. China
| | - Jianping Liu
- College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou, Zhejiang, 325035, P.R. China
| | - Yang Li
- College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou, Zhejiang, 325035, P.R. China
| | - Qing Xu
- School of Chemistry and Chemical Engineering, Institute of Pesticide of School of Horticulture and Plant Protection, Yangzhou University, Yangzhou, Jiangsu, 225002, P.R. China
- College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou, Zhejiang, 325035, P.R. China
| | - Xu Zhang
- School of Chemistry and Chemical Engineering, Institute of Pesticide of School of Horticulture and Plant Protection, Yangzhou University, Yangzhou, Jiangsu, 225002, P.R. China
| | - Hongen Cao
- School of Chemistry and Chemical Engineering, Institute of Pesticide of School of Horticulture and Plant Protection, Yangzhou University, Yangzhou, Jiangsu, 225002, P.R. China
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22
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Shariati M, Imanzadeh G, Rostami A, Ghoreishy N, Kheirjou S. Application of laccase/DDQ as a new bioinspired catalyst system for the aerobic oxidation of tetrahydroquinazolines and Hantzsch 1,4-dihydropyridines. CR CHIM 2019. [DOI: 10.1016/j.crci.2019.03.003] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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23
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Iodine/potassium iodide catalyst for the synthesis of trifluoromethylated quinazolines via intramolecular cyclization of 2,2,2-trifluoro-N-benzyl-N'-arylacetimidamides. Mol Divers 2019; 24:131-139. [PMID: 30868331 DOI: 10.1007/s11030-019-09933-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2018] [Accepted: 02/24/2019] [Indexed: 01/26/2023]
Abstract
An efficient and simple protocol for the synthesis of trifluoromethylated quinazolines has been described by I2-/KI-promoted oxidative C(sp3)-C(sp2) bond under the optimal oxidative cyclization reaction conditions. The required 2,2,2-trifluoro-N-benzyl-N'-arylacetimidamides are readily prepared from the corresponding acetimidoyl chlorides and benzylamines under a nucleophilic substitution reaction in the form of in situ. The merits of this protocol are the use of inexpensive molecular iodine, metal-free oxidative coupling and good to excellent yields.
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24
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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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25
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Gujjarappa R, Maity SK, Hazra CK, Vodnala N, Dhiman S, Kumar A, Beifuss U, Malakar CC. Divergent Synthesis of Quinazolines Using Organocatalytic Domino Strategies under Aerobic Conditions. European J Org Chem 2018. [DOI: 10.1002/ejoc.201800746] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Affiliation(s)
- Raghuram Gujjarappa
- Department of Chemistry; National Institute of Technology Manipur; 795004 Langol, Imphal Manipur India
| | - Suvik K. Maity
- Department of Chemistry; National Institute of Technology Manipur; 795004 Langol, Imphal Manipur India
| | - Chinmoy K. Hazra
- Department of Chemistry; Korea Advanced Institute of Science & Technology (KAIST); 34141 Daejeon 305 - 701 South Korea
| | - Nagaraju Vodnala
- Department of Chemistry; National Institute of Technology Manipur; 795004 Langol, Imphal Manipur India
| | - Shiv Dhiman
- Department of Chemistry; BITS Pilani; Pilani Campus 333031 Pilani Rajasthan India
| | - Anil Kumar
- Department of Chemistry; BITS Pilani; Pilani Campus 333031 Pilani Rajasthan India
| | - Uwe Beifuss
- Institut für Chemie; Universität Hohenheim; Garbenstr. 30 70599 Stuttgart Germany
| | - Chandi C. Malakar
- Department of Chemistry; National Institute of Technology Manipur; 795004 Langol, Imphal Manipur India
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26
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Parua S, Sikari R, Sinha S, Chakraborty G, Mondal R, Paul ND. Accessing Polysubstituted Quinazolines via Nickel Catalyzed Acceptorless Dehydrogenative Coupling. J Org Chem 2018; 83:11154-11166. [DOI: 10.1021/acs.joc.8b01479] [Citation(s) in RCA: 64] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Seuli Parua
- Department of Chemistry, Indian Institute of Engineering Science and Technology, Shibpur, Botanic Garden, Howrah 711103, India
| | - Rina Sikari
- Department of Chemistry, Indian Institute of Engineering Science and Technology, Shibpur, Botanic Garden, Howrah 711103, India
| | - Suman Sinha
- Department of Chemistry, Indian Institute of Engineering Science and Technology, Shibpur, Botanic Garden, Howrah 711103, India
| | - Gargi Chakraborty
- Department of Chemistry, Indian Institute of Engineering Science and Technology, Shibpur, Botanic Garden, Howrah 711103, India
| | - Rakesh Mondal
- Department of Chemistry, Indian Institute of Engineering Science and Technology, Shibpur, Botanic Garden, Howrah 711103, India
| | - Nanda D. Paul
- Department of Chemistry, Indian Institute of Engineering Science and Technology, Shibpur, Botanic Garden, Howrah 711103, India
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27
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Chen Q, Mao Z, Gao K, Guo F, Sheng L, Chen Z. Synthesis of 1,2-Dihydroquinazolines via Rearrangement of Indazolium Salts. J Org Chem 2018; 83:8750-8758. [PMID: 30011991 DOI: 10.1021/acs.joc.8b01044] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A convenient synthesis of 1,2-dihydroquinazolines via rearrangement of indazolium salts was described. A mechanistic study using isotope labeling experiment revealed that the rearrangement passes through cleavage of N-N bond/ring opening after basic deprotonation of 2-benzyl in indazolium salts to yield intermediate E, which proceeds in an intramolecular N-nucleophilic addition to form the observed product. Computational analyses imply that the pathway of the rearrangement is determined by the energy barriers of the ring-closing process and the stability of the product.
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Affiliation(s)
- Qian Chen
- School of Chemical Engineering , Southwest Forestry University , Kunming 650224 , China.,School of Chemistry and Chemical Engineering , Harbin Institute of Technology , Harbin 150080 , China
| | - Zhuqing Mao
- School of Chemistry and Chemical Engineering , Harbin Institute of Technology , Harbin 150080 , China
| | - Kunqi Gao
- School of Chemistry and Chemical Engineering , Harbin Institute of Technology , Harbin 150080 , China
| | - Fang Guo
- School of Chemistry and Chemical Engineering , Harbin Institute of Technology , Harbin 150080 , China
| | - Li Sheng
- School of Chemistry and Chemical Engineering , Harbin Institute of Technology , Harbin 150080 , China
| | - Zhonglin Chen
- State Key Laboratory of Urban Water Resource and Environment, School of Environment , Harbin Institute of Technology , Harbin 150090 , China
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28
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Saikia UP, Borah G, Pahari P. Lewis-Acid-Catalysed Activation of Nitriles: A Microwave-Assisted Solvent-Free Synthesis of 2,4-Disubstituted Quinazolines and 1,3-Diazaspiro[5.5]undec-1-enes. European J Org Chem 2018. [DOI: 10.1002/ejoc.201701585] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Ujwal Pratim Saikia
- Chemical Science and Technology Division; CSIR-North East Institute of Science and Technology; 785006 Jorhat- Assam India
| | - Geetika Borah
- Department of Chemistry; Dibrugarh University; 786004 Dibrugarh- Assam India
| | - Pallab Pahari
- Chemical Science and Technology Division; CSIR-North East Institute of Science and Technology; 785006 Jorhat- Assam India
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29
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Sharma N, Sharma P, Bhagat S. Eco-friendly reactions in PEG-400: a highly efficient and green approach for stereoselective access to multisubstituted 3,4-dihydro-2(1 H)-quinazolines using 2-aminobenzylamines. RSC Adv 2018; 8:8721-8731. [PMID: 35539879 PMCID: PMC9078610 DOI: 10.1039/c7ra13487h] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2017] [Accepted: 02/20/2018] [Indexed: 12/05/2022] Open
Abstract
An efficient and stereoselective synthesis of novel 3,4-dihydro-2(1H)-quinazolines has been developed through cyclization reactions of 2-aminobenzylamines with α-oxoketene dithioacetals using PEG-400 as an inexpensive, easy to handle, non-toxic and recyclable reaction medium. The developed protocol is operationally simple and tolerates various substrates having different functionalities. This protocol features several attributes such as excellent yields, no work up, green reaction conditions, and being environmentally benign. The attractive feature of this new strategy is that all the reported final compounds have been isolated as single (E)-stereoisomeric forms, which was confirmed by 1HNMR and X-ray crystallographic studies.
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Affiliation(s)
- Nutan Sharma
- Organic Synthesis Research Laboratory, Department of Chemistry, A. R. S. D. College, University of Delhi New Delhi-110021 India
| | - Pankaj Sharma
- Organic Synthesis Research Laboratory, Department of Chemistry, A. R. S. D. College, University of Delhi New Delhi-110021 India
| | - Sunita Bhagat
- Organic Synthesis Research Laboratory, Department of Chemistry, A. R. S. D. College, University of Delhi New Delhi-110021 India
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30
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Ma J, Wan Y, Hong C, Li M, Hu X, Mo W, Hu B, Sun N, Jin L, Shen Z. ABNO-Catalyzed Aerobic Oxidative Synthesis of 2-Substituted 4H
-3,1-Benzoxazines and Quinazolines. European J Org Chem 2017. [DOI: 10.1002/ejoc.201700384] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Jiaqi Ma
- College of Chemical Engineering; Zhejiang University of Technology; 310014 Hangzhou People's Republic of China
| | - Yan Wan
- College of Chemical Engineering; Zhejiang University of Technology; 310014 Hangzhou People's Republic of China
| | - Chao Hong
- College of Chemical Engineering; Zhejiang University of Technology; 310014 Hangzhou People's Republic of China
| | - Meichao Li
- College of Chemical Engineering; Zhejiang University of Technology; 310014 Hangzhou People's Republic of China
| | - Xinquan Hu
- College of Chemical Engineering; Zhejiang University of Technology; 310014 Hangzhou People's Republic of China
| | - Weimin Mo
- College of Chemical Engineering; Zhejiang University of Technology; 310014 Hangzhou People's Republic of China
| | - Baoxiang Hu
- College of Chemical Engineering; Zhejiang University of Technology; 310014 Hangzhou People's Republic of China
| | - Nan Sun
- College of Chemical Engineering; Zhejiang University of Technology; 310014 Hangzhou People's Republic of China
| | - Liqun Jin
- College of Chemical Engineering; Zhejiang University of Technology; 310014 Hangzhou People's Republic of China
| | - Zhenlu Shen
- College of Chemical Engineering; Zhejiang University of Technology; 310014 Hangzhou People's Republic of China
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31
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Gromachevskaya EV, Kaigorodova EA, Konyushkin LD. Studies on quinazoline chemistry 6*. Synthesis and alkylation of 2-substituted 4,4-diphenyl-3,4-dihydroquinazolines. Chem Heterocycl Compd (N Y) 2017. [DOI: 10.1007/s10593-017-2091-z] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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32
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Yang X, Meng Q, Gao X, Lei T, Wu C, Chen B, Tung C, Wu L. Superoxide Radical Anion‐Mediated Aerobic Oxidative Synthesis of 2‐Substituted Quinazolines under Visible Light. ASIAN J ORG CHEM 2017. [DOI: 10.1002/ajoc.201600550] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Xiu‐Long Yang
- Key Laboratory of Photochemical Conversion and Optoelectronic MaterialsTechnical Institute of Physics and Chemistry&University of Chinese Academy of SciencesChinese Academy of Sciences Beijing 100190 P. R. China
| | - Qing‐Yuan Meng
- Key Laboratory of Photochemical Conversion and Optoelectronic MaterialsTechnical Institute of Physics and Chemistry&University of Chinese Academy of SciencesChinese Academy of Sciences Beijing 100190 P. R. China
| | - Xue‐Wang Gao
- Key Laboratory of Photochemical Conversion and Optoelectronic MaterialsTechnical Institute of Physics and Chemistry&University of Chinese Academy of SciencesChinese Academy of Sciences Beijing 100190 P. R. China
| | - Tao Lei
- Key Laboratory of Photochemical Conversion and Optoelectronic MaterialsTechnical Institute of Physics and Chemistry&University of Chinese Academy of SciencesChinese Academy of Sciences Beijing 100190 P. R. China
| | - Cheng‐Juan Wu
- Key Laboratory of Photochemical Conversion and Optoelectronic MaterialsTechnical Institute of Physics and Chemistry&University of Chinese Academy of SciencesChinese Academy of Sciences Beijing 100190 P. R. China
| | - Bin Chen
- Key Laboratory of Photochemical Conversion and Optoelectronic MaterialsTechnical Institute of Physics and Chemistry&University of Chinese Academy of SciencesChinese Academy of Sciences Beijing 100190 P. R. China
| | - Chen‐Ho Tung
- Key Laboratory of Photochemical Conversion and Optoelectronic MaterialsTechnical Institute of Physics and Chemistry&University of Chinese Academy of SciencesChinese Academy of Sciences Beijing 100190 P. R. China
| | - Li‐Zhu Wu
- Key Laboratory of Photochemical Conversion and Optoelectronic MaterialsTechnical Institute of Physics and Chemistry&University of Chinese Academy of SciencesChinese Academy of Sciences Beijing 100190 P. R. China
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33
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Rahman MU, Jeyabalan G, Saraswat P, Parveen G, Khan S, Yar MS. Quinazolines and anticancer activity: A current perspectives. SYNTHETIC COMMUN 2017. [DOI: 10.1080/00397911.2016.1269926] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- Mujeeb Ur Rahman
- Department of Drug Discovery and Development, Alwar Pharmacy College M.I.A., Alwar, India
| | - G. Jeyabalan
- Department of Drug Discovery and Development, Alwar Pharmacy College M.I.A., Alwar, India
| | - Pankaj Saraswat
- Department of Drug Discovery and Development, Alwar Pharmacy College M.I.A., Alwar, India
| | - Gazala Parveen
- Department of Pharmacy, Sun Rise University, Alwar, India
| | - Shahroz Khan
- Department of Pharmacy, Sun Rise University, Alwar, India
| | - M. Shahar Yar
- Department of Pharmaceutical Chemistry, Jamia Hamdard, New Delhi, India
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34
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Yang HB, Selander N. Divergent Iron-Catalyzed Coupling ofO-Acyloximes with Silyl Enol Ethers. Chemistry 2017; 23:1779-1783. [DOI: 10.1002/chem.201605636] [Citation(s) in RCA: 154] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2016] [Revised: 12/13/2016] [Indexed: 12/23/2022]
Affiliation(s)
- Hai-Bin Yang
- Department of Organic Chemistry; Stockholm University, Arrhenius Laboratory; 106 91 Stockholm Sweden
| | - Nicklas Selander
- Department of Organic Chemistry; Stockholm University, Arrhenius Laboratory; 106 91 Stockholm Sweden
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35
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Luo L, Zhao X, Zhang L, Yuan Y, Lü S, Jia X. An aerobic oxidative aza-[4+2] cycloaddition induced by radical cation salt: Synthesis of dihydroquinazoline derivatives. Tetrahedron Lett 2016. [DOI: 10.1016/j.tetlet.2016.11.052] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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36
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Yamaguchi T, Sugiura Y, Yamaguchi E, Tada N, Itoh A. Synthetic Method for the Preparation of Quinazolines by the Oxidation of Amines Using Singlet Oxygen. ASIAN J ORG CHEM 2016. [DOI: 10.1002/ajoc.201600431] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Tomoaki Yamaguchi
- Laboratory of Pharmaceutical Synthetic ChemistryGifu Pharmaceutical University 1-25-4, Daigaku-nishi Gifu 501-1196 Japan
| | - Yukina Sugiura
- Laboratory of Pharmaceutical Synthetic ChemistryGifu Pharmaceutical University 1-25-4, Daigaku-nishi Gifu 501-1196 Japan
| | - Eiji Yamaguchi
- Laboratory of Pharmaceutical Synthetic ChemistryGifu Pharmaceutical University 1-25-4, Daigaku-nishi Gifu 501-1196 Japan
| | - Norihiro Tada
- Laboratory of Pharmaceutical Synthetic ChemistryGifu Pharmaceutical University 1-25-4, Daigaku-nishi Gifu 501-1196 Japan
| | - Akichika Itoh
- Laboratory of Pharmaceutical Synthetic ChemistryGifu Pharmaceutical University 1-25-4, Daigaku-nishi Gifu 501-1196 Japan
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37
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Kwon SH, Seo HA, Cheon CH. Total Synthesis of Luotonin A and Rutaecarpine from an Aldimine via the Designed Cyclization. Org Lett 2016; 18:5280-5283. [DOI: 10.1021/acs.orglett.6b02597] [Citation(s) in RCA: 49] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Se Hyun Kwon
- Department of Chemistry, Korea University, 145 Anam-ro, Seongbuk-gu, Seoul 02841, Republic of Korea
| | - Hong-Ahn Seo
- Department of Chemistry, Korea University, 145 Anam-ro, Seongbuk-gu, Seoul 02841, Republic of Korea
| | - Cheol-Hong Cheon
- Department of Chemistry, Korea University, 145 Anam-ro, Seongbuk-gu, Seoul 02841, Republic of Korea
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38
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Sun X, Yu S. Visible-light-promoted iminyl radical formation from vinyl azides: synthesis of 6-(fluoro)alkylated phenanthridines. Chem Commun (Camb) 2016; 52:10898-901. [PMID: 27530901 DOI: 10.1039/c6cc05756j] [Citation(s) in RCA: 74] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
An efficient strategy assisted by visible-light-promoted iminyl radical formation has been developed for the synthesis of 6-(fluoro)alkylated phenanthridine derivatives. In the reactions, addition of alkyl and trifluoromethyl radicals onto vinyl azides gives iminyl radicals, which then undergo intramolecular homolytic aromatic substitution leading to phenanthridines. These reactions can be carried out under mild conditions with high chemical yields and broad substrate scope.
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Affiliation(s)
- Xiaoyang Sun
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China.
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39
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Marinho E, Proença MF. Reactivity and regioselectivity in the acylation of 2,4-diaminoquinazolines. Tetrahedron 2016. [DOI: 10.1016/j.tet.2016.06.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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40
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Walton JC. Synthetic Strategies for 5- and 6-Membered Ring Azaheterocycles Facilitated by Iminyl Radicals. Molecules 2016; 21:molecules21050660. [PMID: 27213311 PMCID: PMC6273063 DOI: 10.3390/molecules21050660] [Citation(s) in RCA: 52] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2016] [Revised: 05/11/2016] [Accepted: 05/16/2016] [Indexed: 01/09/2023] Open
Abstract
The totality of chemical space is so immense that only a small fraction can ever be explored. Computational searching has indicated that bioactivity is associated with a comparatively small number of ring-containing structures. Pyrrole, indole, pyridine, quinoline, quinazoline and related 6-membered ring-containing aza-arenes figure prominently. This review focuses on the search for fast, efficient and environmentally friendly preparative methods for these rings with specific emphasis on iminyl radical-mediated procedures. Oxime derivatives, particularly oxime esters and oxime ethers, are attractive precursors for these radicals. Their use is described in conventional thermolytic, microwave-assisted and UV-vis based preparative procedures. Photoredox-catalyzed protocols involving designer oxime ethers are also covered. Choice can be made amongst these synthetic strategies for a wide variety of 5- and 6-membered ring heterocycles including phenanthridine and related aza-arenes. Applications to selected natural products and bioactive molecules, including trispheridine, vasconine, luotonin A and rutaecarpine, are included.
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Affiliation(s)
- John C Walton
- University of St. Andrews, EaStCHEM School of Chemistry, St. Andrews, Fife KY16 9ST, UK.
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41
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Driowya M, Saber A, Marzag H, Demange L, Benhida R, Bougrin K. Microwave-Assisted Synthesis of Bioactive Six-Membered Heterocycles and Their Fused Analogues. Molecules 2016; 21:492. [PMID: 27089315 PMCID: PMC6273482 DOI: 10.3390/molecules21040492] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2016] [Revised: 03/31/2016] [Accepted: 04/05/2016] [Indexed: 11/16/2022] Open
Abstract
This review describes the formation of six-membered heterocyclic compounds and their fused analogues under microwave activation using modern organic transformations including cyclocondensation, cycloaddition, multicomponents and other modular reactions. The review is divided according to the main heterocycle types in order of increasing complexity, starting with heterocyclic systems containing one, two and three heteroatoms and their fused analogues. Recent microwave applications are reviewed, with special focus on the chemistry of bioactive compounds. Selected examples from the 2006 to 2015 literature are discussed.
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Affiliation(s)
- Mohsine Driowya
- Laboratoire de Chimie des Plantes et de Synthèse Organique et Bioorganique, URAC23, Faculté des Sciences, Université Mohammed V, B.P. 1014 Rabat, Maroc.
| | - Aziza Saber
- Laboratoire de Chimie des Plantes et de Synthèse Organique et Bioorganique, URAC23, Faculté des Sciences, Université Mohammed V, B.P. 1014 Rabat, Maroc.
| | - Hamid Marzag
- Laboratoire de Chimie des Plantes et de Synthèse Organique et Bioorganique, URAC23, Faculté des Sciences, Université Mohammed V, B.P. 1014 Rabat, Maroc.
| | - Luc Demange
- Institut de Chimie de Nice, ICN UMR UNS CNRS 7272, Université Nice-Sophia Antipolis-Université Côte d'Azur, Parc Valrose, 06108 Nice Cedex 2, France.
- Department of Chemistry, Université Paris Descartes, Sorbonne Paris Cité, UFR des Sciences Pharmaceutiques, 4 avenue de l'Observatoire & UFR Biomédicale des Saints Pères, 45 rue des Saints Pères, Paris Fr-75006, France.
| | - Rachid Benhida
- Institut de Chimie de Nice, ICN UMR UNS CNRS 7272, Université Nice-Sophia Antipolis-Université Côte d'Azur, Parc Valrose, 06108 Nice Cedex 2, France.
| | - Khalid Bougrin
- Laboratoire de Chimie des Plantes et de Synthèse Organique et Bioorganique, URAC23, Faculté des Sciences, Université Mohammed V, B.P. 1014 Rabat, Maroc.
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42
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Wang J, Zha S, Chen K, Zhang F, Song C, Zhu J. Quinazoline Synthesis via Rh(III)-Catalyzed Intermolecular C–H Functionalization of Benzimidates with Dioxazolones. Org Lett 2016; 18:2062-5. [DOI: 10.1021/acs.orglett.6b00691] [Citation(s) in RCA: 110] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Affiliation(s)
- Jie Wang
- Department of Polymer Science
and Engineering, School of Chemistry and Chemical Engineering, State
Key Laboratory of Coordination Chemistry, Nanjing National Laboratory
of Microstructures, Nanjing University, Nanjing 210093, China
| | - Shanke Zha
- Department of Polymer Science
and Engineering, School of Chemistry and Chemical Engineering, State
Key Laboratory of Coordination Chemistry, Nanjing National Laboratory
of Microstructures, Nanjing University, Nanjing 210093, China
| | - Kehao Chen
- Department of Polymer Science
and Engineering, School of Chemistry and Chemical Engineering, State
Key Laboratory of Coordination Chemistry, Nanjing National Laboratory
of Microstructures, Nanjing University, Nanjing 210093, China
| | - Feifei Zhang
- Department of Polymer Science
and Engineering, School of Chemistry and Chemical Engineering, State
Key Laboratory of Coordination Chemistry, Nanjing National Laboratory
of Microstructures, Nanjing University, Nanjing 210093, China
| | - Chao Song
- Department of Polymer Science
and Engineering, School of Chemistry and Chemical Engineering, State
Key Laboratory of Coordination Chemistry, Nanjing National Laboratory
of Microstructures, Nanjing University, Nanjing 210093, China
| | - Jin Zhu
- Department of Polymer Science
and Engineering, School of Chemistry and Chemical Engineering, State
Key Laboratory of Coordination Chemistry, Nanjing National Laboratory
of Microstructures, Nanjing University, Nanjing 210093, China
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43
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Vessally E, Abdoli M. Oxime ethers as useful synthons in the synthesis of a number of key medicinal heteroaromatic compounds. JOURNAL OF THE IRANIAN CHEMICAL SOCIETY 2016. [DOI: 10.1007/s13738-016-0838-6] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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44
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Walton JC. Functionalised Oximes: Emergent Precursors for Carbon-, Nitrogen- and Oxygen-Centred Radicals. Molecules 2016; 21:63. [PMID: 26751437 PMCID: PMC6273297 DOI: 10.3390/molecules21010063] [Citation(s) in RCA: 61] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2015] [Revised: 12/29/2015] [Accepted: 12/30/2015] [Indexed: 11/16/2022] Open
Abstract
Oxime derivatives are easily made, are non-hazardous and have long shelf lives. They contain weak N-O bonds that undergo homolytic scission, on appropriate thermal or photochemical stimulus, to initially release a pair of N- and O-centred radicals. This article reviews the use of these precursors for studying the structures, reactions and kinetics of the released radicals. Two classes have been exploited for radical generation; one comprises carbonyl oximes, principally oxime esters and amides, and the second comprises oxime ethers. Both classes release an iminyl radical together with an equal amount of a second oxygen-centred radical. The O-centred radicals derived from carbonyl oximes decarboxylate giving access to a variety of carbon-centred and nitrogen-centred species. Methods developed for homolytically dissociating the oxime derivatives include UV irradiation, conventional thermal and microwave heating. Photoredox catalytic methods succeed well with specially functionalised oximes and this aspect is also reviewed. Attention is also drawn to the key contributions made by EPR spectroscopy, aided by DFT computations, in elucidating the structures and dynamics of the transient intermediates.
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Affiliation(s)
- John C Walton
- EaStCHEM School of Chemistry, University of St. Andrews, St. Andrews, Fife KY16 9ST, UK.
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45
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Tiwari AR, Bhanage BM. Synthesis of quinazolines from 2-aminobenzylamines with benzylamines and N-substituted benzylamines under transition metal-free conditions. Org Biomol Chem 2016; 14:10567-10571. [DOI: 10.1039/c6ob02163h] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
This work reports the synthesis of quinazolines from 2-aminobenzylamines with N-substituted benzylamines in the presence of molecular iodine. The developed methodology works smoothly under transition-metal free, additive free and solvent free conditions and the use of O2 as a green oxidant makes it a greatly economical.
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Affiliation(s)
- Abhishek R. Tiwari
- Department of Chemistry
- Institute of Chemical Technology (ICT)
- Mumbai
- India
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46
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Yamaguchi T, Sakairi K, Yamaguchi E, Tada N, Itoh A. Magnesium iodide-catalyzed synthesis of 2-substituted quinazolines using molecular oxygen and visible light. RSC Adv 2016. [DOI: 10.1039/c6ra04073j] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023] Open
Abstract
We disclose a novel and efficient synthesis of 2-substituted quinazolines by aerobic photooxidative reaction catalyzed by magnesium iodide.
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Affiliation(s)
- T. Yamaguchi
- Gifu Pharmaceutical University
- Gifu 501-1196
- Japan
| | - K. Sakairi
- Gifu Pharmaceutical University
- Gifu 501-1196
- Japan
| | - E. Yamaguchi
- Gifu Pharmaceutical University
- Gifu 501-1196
- Japan
| | - N. Tada
- Gifu Pharmaceutical University
- Gifu 501-1196
- Japan
| | - A. Itoh
- Gifu Pharmaceutical University
- Gifu 501-1196
- Japan
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Marinho E, Proença MF. Acid catalyzed synthesis of 2-(2-aminophenyl)quinazoline-4-amine and reaction with aromatic aldehydes. RSC Adv 2016. [DOI: 10.1039/c5ra19785f] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
The hydrochloride salt of 2-(2-aminophenyl)quinazoline-4-amine, prepared from a quinazolino[3,4-a]quinazoline, was reacted with aromatic aldehydes under conventional heating or microwave irradiation, leading to tetracyclic dihydroquinazolines.
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Affiliation(s)
- Elina Marinho
- Chemistry Department
- University of Minho
- Campus de Gualtar
- 4710-057 Braga
- Portugal
| | - M. Fernanda Proença
- Chemistry Department
- University of Minho
- Campus de Gualtar
- 4710-057 Braga
- Portugal
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48
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Catalyst-free, one pot and three-component synthesis of 4′-phenyl-1′H-spiro[indoline-3,2′-quinazolin]-2-ones and 2,4-diphenyl-1,2-dihydroquinazolines. Tetrahedron Lett 2015. [DOI: 10.1016/j.tetlet.2015.09.125] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
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49
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Li Z, Dong J, Chen X, Li Q, Zhou Y, Yin SF. Metal- and Oxidant-Free Synthesis of Quinazolinones from β-Ketoesters with o-Aminobenzamides via Phosphorous Acid-Catalyzed Cyclocondensation and Selective C–C Bond Cleavage. J Org Chem 2015; 80:9392-400. [DOI: 10.1021/acs.joc.5b00937] [Citation(s) in RCA: 79] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Zhongwen Li
- State Key Laboratory of Chemo/Biosensing
and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha, 410082, People’s Republic of China
| | - Jianyu Dong
- State Key Laboratory of Chemo/Biosensing
and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha, 410082, People’s Republic of China
| | - Xiuling Chen
- State Key Laboratory of Chemo/Biosensing
and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha, 410082, People’s Republic of China
| | - Qiang Li
- State Key Laboratory of Chemo/Biosensing
and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha, 410082, People’s Republic of China
| | - Yongbo Zhou
- State Key Laboratory of Chemo/Biosensing
and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha, 410082, People’s Republic of China
| | - Shuang-Feng Yin
- State Key Laboratory of Chemo/Biosensing
and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha, 410082, People’s Republic of China
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50
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Fülöpová V, Cziesla L, Fleming M, Lu Y, Voelker A, Krchňák V. Traceless Solid-Phase Synthesis of Trisubstituted Quinazolines. ACS COMBINATORIAL SCIENCE 2015; 17:470-3. [PMID: 26145229 DOI: 10.1021/acscombsci.5b00060] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A traceless polymer-supported synthesis of 4-benzoylquinazolines was developed using the following commercially available building blocks: Fmoc-α-amino acids, 2-nitrobenzensulfonyl chlorides and α-bromoacetophenones. The acyclic intermediates underwent base-catalyzed rearrangement involving C-C and N-N bond formation followed by ring expansion and yielded resin-bound dihydroquinazoline-2-carboxylic acids. After they were released from the resin by treatment with trifluoroacetic acid, base-mediated decarboxylation produced the target quinazolines in moderate-to-high yields and purities.
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Affiliation(s)
- Veronika Fülöpová
- Department
of Organic Chemistry, Institute of Molecular and Translational Medicine,
Faculty of Science, Palacky University, 17. listopadu 12, 771 46 Olomouc, Czech Republic
| | - Lauren Cziesla
- Department
of Chemistry and Biochemistry, University of Notre Dame, 251 Nieuwland
Science Center, Notre Dame, Indiana 46556, United States
| | - Megan Fleming
- Department
of Chemistry and Biochemistry, University of Notre Dame, 251 Nieuwland
Science Center, Notre Dame, Indiana 46556, United States
| | - Yiwei Lu
- Department
of Chemistry and Biochemistry, University of Notre Dame, 251 Nieuwland
Science Center, Notre Dame, Indiana 46556, United States
| | - Adrienne Voelker
- Department
of Chemistry and Biochemistry, University of Notre Dame, 251 Nieuwland
Science Center, Notre Dame, Indiana 46556, United States
| | - Viktor Krchňák
- Department
of Organic Chemistry, Institute of Molecular and Translational Medicine,
Faculty of Science, Palacky University, 17. listopadu 12, 771 46 Olomouc, Czech Republic
- Department
of Chemistry and Biochemistry, University of Notre Dame, 251 Nieuwland
Science Center, Notre Dame, Indiana 46556, United States
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