1
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Hosseinzadeh H, Rad-Moghadam K, Mehrdad M, Rouhi S. Starch mediates and cements densely magnetite-coating of talc, giving an efficient nano-catalyst for three-component synthesis of imidazo[1,2-c]quinazolines. Sci Rep 2024; 14:666. [PMID: 38182779 PMCID: PMC10770035 DOI: 10.1038/s41598-023-51123-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2023] [Accepted: 12/31/2023] [Indexed: 01/07/2024] Open
Abstract
Hot-water-soluble starch (HWSS) was used as a powerful cementing material to produce nano-size conglomerates of talc and magnetite nanoparticles. Coordination of HWSS hydroxyl groups to iron atoms at surface of magnetite leads to grafting and encapsulation of its nanoparticles. The resulting nano-complex showed a higher loading capacity on talc than pristine magnetite nanoparticles. Only a minute amount of HWSS was detected in the fabricated nano-composite Talc\HWSS@Fe3O4. XPS study suggests a considerable interaction between HWSS and Fe3O4 nanoparticles, upon which some of the Fe+3 atoms on surface of Fe3O4 are reduced into Fe+2 atoms. ATR FT-IR spectra of the nano-composite revealed significant delamination of talc sheets on interaction with HWSS-coated Fe3O4 nanoparticles. The nano-composite displayed an efficient catalytic activity in the synthesis of new imidazo[1,2-c]quinazoline derivatives via Grobke-Blackburn-Bienaymé three-component reaction of 4-aminoquinazoline, arylaldehydes and isocyanide. The efficiency of the method was exemplified by synthesizing 7 new products in fairly high yields (68-83%) within short reaction times (24-30 min) using a catalytic amount of the catalyst under solvent-free condition at 120 °C. Clean and fast synthesis of the products and convenient separation of the robust nano-catalyst are the prominent advantages of the present method. The nano-catalyst was properly characterized.
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Affiliation(s)
| | | | - Morteza Mehrdad
- Chemistry Department, University of Guilan, Rasht, 41335-1914, Iran
| | - Somayeh Rouhi
- Chemistry Department, University of Guilan, Rasht, 41335-1914, Iran
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2
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Peytam F, Hosseini FS, Hekmati M, Bayati B, Moghadam MS, Emamgholipour Z, Firoozpour L, Mojtabavi S, Faramarzi MA, Sadat-Ebrahimi SE, Tehrani MB, Foroumadi A. Imidazo[1,2-c]quinazolines as a novel and potent scaffold of α-glucosidase inhibitors: design, synthesis, biological evaluations, and in silico studies. Sci Rep 2023; 13:15672. [PMID: 37735489 PMCID: PMC10514295 DOI: 10.1038/s41598-023-42549-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2023] [Accepted: 09/12/2023] [Indexed: 09/23/2023] Open
Abstract
α-Glucosidase inhibition is an approved treatment for type 2 diabetes mellitus (T2DM). In an attempt to develop novel anti-α-glucosidase agents, two series of substituted imidazo[1,2-c]quinazolines, namely 6a-c and 11a-o, were synthesized using a simple, straightforward synthetic routes. These compounds were thoroughly characterized by IR, 1H and 13C NMR spectroscopy, as well as mass spectrometry and elemental analysis. Subsequently, the inhibitory activities of these compounds were evaluated against Saccharomyces cerevisiae α-glucosidase. In present study, acarbose was utilized as a positive control. These imidazoquinazolines exhibited excellent to great inhibitory potencies with IC50 values ranging from 12.44 ± 0.38 μM to 308.33 ± 0.06 μM, which were several times more potent than standard drug with IC50 value of 750.0 ± 1.5 μM. Representatively, compound 11j showed remarkable anti-α-glucosidase potency with IC50 = 12.44 ± 0.38 μM, which was 60.3 times more potent than positive control acarbose. To explore the potential inhibition mechanism, further evaluations including kinetic analysis, circular dichroism, fluorescence spectroscopy, and thermodynamic profile were carried out for the most potent compound 11j. Moreover, molecular docking studies and in silico ADME prediction for all imidazoquinazolines 6a-c and 11a-o were performed to reveal their important binding interactions, as well as their physicochemical and drug-likeness properties, respectively.
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Affiliation(s)
- Fariba Peytam
- Drug Design and Development Research Center, The Institute of Pharmaceutical Sciences (TIPS), Tehran University of Medical Sciences, Tehran, Iran
| | - Faezeh Sadat Hosseini
- Department of Organic Chemistry, Faculty of Pharmaceutical Chemistry, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran
| | - Malak Hekmati
- Department of Organic Chemistry, Faculty of Pharmaceutical Chemistry, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran
| | - Bahareh Bayati
- Department of Medicinal Chemistry, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran
| | - Mahdis Sadeghi Moghadam
- Department of Medicinal Chemistry, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran
| | - Zahra Emamgholipour
- Department of Medicinal Chemistry, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran
| | - Loghman Firoozpour
- Department of Medicinal Chemistry, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran
| | - Somayeh Mojtabavi
- Department of Pharmaceutical Biotechnology, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran
| | - Mohammad Ali Faramarzi
- Department of Pharmaceutical Biotechnology, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran
| | | | - Maliheh Barazandeh Tehrani
- Department of Medicinal Chemistry, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran
| | - Alireza Foroumadi
- Drug Design and Development Research Center, The Institute of Pharmaceutical Sciences (TIPS), Tehran University of Medical Sciences, Tehran, Iran.
- Department of Medicinal Chemistry, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran.
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3
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Lee S, Dao PDQ, Lim HJ, Cho CS. Recyclable Magnetic Cu-MOF-74-Catalyzed C(sp 2)-N Coupling and Cyclization under Microwave Irradiation: Synthesis of Imidazo[1,2- c]quinazolines and Their Analogues. ACS OMEGA 2023; 8:16218-16227. [PMID: 37179653 PMCID: PMC10173347 DOI: 10.1021/acsomega.3c00680] [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: 02/01/2023] [Accepted: 04/06/2023] [Indexed: 05/15/2023]
Abstract
Magnetic Cu-MOF-74 (Fe3O4@SiO2@Cu-MOF-74) was synthesized for the first time by grafting MOF-74 (copper as the metal center) on the surface of core-shell magnetic carboxyl-functionalized silica gel (Fe3O4@SiO2-COOH), which was prepared by coating core Fe3O4 nanoparticles with hydrolyzed 2-(3-(triethoxysilyl)propyl)succinic anhydride and tetraethyl orthosilicate. The structure of Fe3O4@SiO2@Cu-MOF-74 nanoparticles was characterized by Fourier transform infrared (FT-IR) spectroscopy, scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDS), and transmission electron microscopy (TEM). The prepared Fe3O4@SiO2@Cu-MOF-74 nanoparticles could be applied as a recyclable catalyst to the synthesis of N-fused hybrid scaffolds. 2-(2-Bromoaryl)imidazoles and 2-(2-bromovinyl)imidazoles were coupled and cyclized with cyanamide in DMF in the presence of a catalytic amount of Fe3O4@SiO2@Cu-MOF-74 along with a base to give imidazo[1,2-c]quinazolines and imidazo[1,2-c]pyrimidines, respectively, in good yields. The Fe3O4@SiO2@Cu-MOF-74 catalyst could be easily recovered by a super magnetic bar and recycled more than four times while almost maintaining catalytic activity.
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Affiliation(s)
- Seong
Weon Lee
- Department
of Applied Chemistry, Kyungpook National
University, 80 Daehakro, Bukgu, Daegu 41566, Republic of Korea
| | - Pham Duy Quang Dao
- Department
of Applied Chemistry, Kyungpook National
University, 80 Daehakro, Bukgu, Daegu 41566, Republic of Korea
| | - Ho-Jin Lim
- Department
of Environmental Engineering, Kyungpook
National University, 80 Daehakro, Bukgu, Daegu 41566, Republic of Korea
| | - Chan Sik Cho
- Department
of Applied Chemistry, Kyungpook National
University, 80 Daehakro, Bukgu, Daegu 41566, Republic of Korea
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4
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Nandwana NK, Bhawani, Shinde VN, Kumar A. Copper‐Catalyzed One‐Pot, Three‐Component Synthesis of Imidazo[1,2‐
c
]quinazolines and Benzimidazo[1,2‐
c
]quinazolines. ChemistrySelect 2021. [DOI: 10.1002/slct.202102905] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Nitesh K. Nandwana
- Department of Chemistry Birla Institute of Technology and Science Pilani 333031 India
- School of Pharmacy Long Island University Brooklyn New York USA
| | - Bhawani
- Department of Chemistry Birla Institute of Technology and Science Pilani 333031 India
| | - Vikki N. Shinde
- Department of Chemistry Birla Institute of Technology and Science Pilani 333031 India
| | - Anil Kumar
- Department of Chemistry Birla Institute of Technology and Science Pilani 333031 India
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5
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Kwak JP, Quang Dao PD, Yoon NS, Cho CS. Microwave-assisted green construction of imidazole-fused hybrid scaffolds using 2-aminobenzimidazoles as building blocks. RSC Adv 2021; 11:21367-21374. [PMID: 35478827 PMCID: PMC9034102 DOI: 10.1039/d1ra04396j] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2021] [Accepted: 06/08/2021] [Indexed: 11/22/2022] Open
Abstract
A class of trinuclear imidazole-fused hybrid scaffolds was constructed by the reaction of 2-(2-bromoaryl)- and 2-(2-bromovinyl)imidazoles with 2-aminobenzimidazoles as building blocks in the presence of a base under microwave irradiation. A nucleophilic aromatic substitution followed by cyclization is proposed as a reaction pathway of this green process. A green synthesis of trinuclear imidazole-fused hybrid scaffolds has been developed by transition metal-free double C(sp2)–N coupling and cyclization of 2-(2-bromoaryl)- and 2-(2-bromovinyl)imidazoles with 2-aminobenzimidazoles as building blocks under microwave irradiation.![]()
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Affiliation(s)
- Jung Pyo Kwak
- Department of Applied Chemistry, Kyungpook National University 80 Daehakro, Bukgu Daegu 41566 Republic of Korea
| | - Pham Duy Quang Dao
- Department of Applied Chemistry, Kyungpook National University 80 Daehakro, Bukgu Daegu 41566 Republic of Korea
| | - Nam Sik Yoon
- Department of Textile System Engineering, Kyungpook National University 80 Daehakro, Bukgu Daegu 41566 Republic of Korea
| | - Chan Sik Cho
- Department of Applied Chemistry, Kyungpook National University 80 Daehakro, Bukgu Daegu 41566 Republic of Korea
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6
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Kravtsov DV, Voskoboinik OY, Kovalenko SI. Synthesis, antimicrobial, and mitotic toxicity evaluation of new 6‐substituted 2‐(benzo[4,5]imidazo[1,2‐
c
]quinazolin‐5(
6
H
)‐yl)acetic acids. J Heterocycl Chem 2021. [DOI: 10.1002/jhet.4161] [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)
- Dmytro V. Kravtsov
- Department of Organic and Bioorganic Chemistry Zaporizhzhia State Medical University Zaporizhzhia Ukraine
| | - Oleksii Yu. Voskoboinik
- Department of Organic and Bioorganic Chemistry Zaporizhzhia State Medical University Zaporizhzhia Ukraine
| | - Serhii I. Kovalenko
- Department of Organic and Bioorganic Chemistry Zaporizhzhia State Medical University Zaporizhzhia Ukraine
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7
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Unprecedented reaction course of 1-phenyl-2H,6H-imidazo[1,5-c]quinazoline-3,5-dione with 3-M excess of ethylene oxide. Struct Chem 2019. [DOI: 10.1007/s11224-018-1247-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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8
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Khan T, Yaragorla S. Iodocyclization of Propargyl Alcohols: Highly Facile Approach to Hetero/Carbocyclic Iodides. European J Org Chem 2019. [DOI: 10.1002/ejoc.201900474] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Affiliation(s)
- Tabassum Khan
- School of Chemistry; University of Hyderabad; P.O.Central Universit; 500046 Gachibowli Hyderabad India
| | - Srinivasarao Yaragorla
- School of Chemistry; University of Hyderabad; P.O.Central Universit; 500046 Gachibowli Hyderabad India
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9
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Kaur N, Verma Y, Grewal P, Bhardwaj P, Devi M. Application of titanium catalysts for the syntheses of heterocycles. SYNTHETIC COMMUN 2019. [DOI: 10.1080/00397911.2019.1606922] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Navjeet Kaur
- Department of Chemistry, Banasthali Vidyapith, Banasthali, India
| | - Yamini Verma
- Department of Chemistry, Banasthali Vidyapith, Banasthali, India
| | - Pooja Grewal
- Department of Chemistry, Banasthali Vidyapith, Banasthali, India
| | - Pranshu Bhardwaj
- Department of Chemistry, Banasthali Vidyapith, Banasthali, India
| | - Meenu Devi
- Department of Chemistry, Banasthali Vidyapith, Banasthali, India
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10
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Szyszkowska A, Klasek A, Pawlędzio S, Trzybiński D, Woźniak K, Zarzyka I. New diols with imidazoquinazoline ring. J Mol Struct 2018. [DOI: 10.1016/j.molstruc.2017.10.014] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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11
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Nandwana NK, Shinde VN, Saini HK, Kumar A. Copper-Catalyzed One-Pot Tandem Reaction for the Synthesis of Imidazo[1,2-c
][1,2,3]triazolo[1,5-a
]quinazolines. European J Org Chem 2017. [DOI: 10.1002/ejoc.201701221] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Nitesh K. Nandwana
- Department of Chemistry; BITS Pilani; Pilani Campus 333031 Pilani Rajasthan India
| | - Vikki N. Shinde
- Department of Chemistry; BITS Pilani; Pilani Campus 333031 Pilani Rajasthan India
| | - Hitesh K. Saini
- Department of Chemistry; BITS Pilani; Pilani Campus 333031 Pilani Rajasthan India
| | - Anil Kumar
- Department of Chemistry; BITS Pilani; Pilani Campus 333031 Pilani Rajasthan India
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12
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Hęclik K, Szyszkowska A, Trzybiński D, Woźniak K, Klasek A, Zarzyka I. Esters with imidazo [1,5-c] quinazoline-3,5-dione ring spectral characterization and quantum-mechanical modeling. J Mol Model 2017; 23:107. [PMID: 28275905 PMCID: PMC5343086 DOI: 10.1007/s00894-017-3284-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2016] [Accepted: 02/13/2017] [Indexed: 11/26/2022]
Abstract
1-phenyl-2H,6H-imidazo[1,5-c]quinazoline-3,5-dione reacts with ethyl bromoacetate under mild conditions to give 2-(ethoxycarbonylmethyl)-1-phenyl-6H-imidazo[1,5-c]quinazoline-3,5-dione (MEPIQ) and next 2,6-bis(ethoxycarbonylmethyl)-1-phenylimidazo[1,5-c]quinazoline-3,5-dione (BEPIQ). The products were isolated at high yield and identified on the basis of IR, 1H- and 13C-NMR, UV spectroscopy, and X-ray crystallography. Diester (BEPIQ) can be presented by 16 possible pair of enantiomers. Only one pair of them is the most stable and crystallizes which is shown crystallographic research. Based on quantum-mechanical modeling, with the use of DFT method, which conformers of mono- and diester and why they were formed was explained. It was calculated that 99.93% of the monoester (MEPIQ) is formed at position No. 2 and one pair of the monoester conformers, from six possible, has the largest share (51.63%). These results afforded to limit the number of diester conformers to eight. Unfortunately, the quantum-mechanical calculations performed that their shares are similar. Further quantum-mechanical modeling showed that conformers are able to undergo mutual transformations. As a result only one pair of diester conformers forms crystals. These conformers have substituents in trans position and these substituents are located parallel to imidazoquinazoline ring. This allows for the denser packing of the molecules in the unit cell.
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Affiliation(s)
- K Hęclik
- Department of Chemistry, The University of Technology, Powstańców Warszawy 6, 35-959, Rzeszow, Poland.
| | - A Szyszkowska
- Department of Chemistry, The University of Technology, Powstańców Warszawy 6, 35-959, Rzeszow, Poland
| | - D Trzybiński
- Department of Chemistry, Biological and Chemical Research Centre, University of Warsaw, Żwirki i Wigury 101, 02-089, Warsaw, Poland
| | - K Woźniak
- Department of Chemistry, Biological and Chemical Research Centre, University of Warsaw, Żwirki i Wigury 101, 02-089, Warsaw, Poland
| | - A Klasek
- Faculty of Technology, Department of Chemistry, Tomas Bata University in Zlin, CZ-762 72, Zlin, Czech Republic
| | - I Zarzyka
- Department of Chemistry, The University of Technology, Powstańców Warszawy 6, 35-959, Rzeszow, Poland
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13
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Antypenko OM, Kholodnyak SV, Schabelnyk KP, Antypenko LM, Kovalenko SI. 2-(Azolyl)anilines: methods of synthesis, cyclocondensations, and biological properties. Chem Heterocycl Compd (N Y) 2017. [DOI: 10.1007/s10593-017-2051-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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14
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Synthesis, spectroscopic characterization and DFT calculations of monohydroxyalkylated derivatives of 1-phenyl-2H,6H-imidazo[1,5-c]quinazoline-3,5-dione. J Mol Struct 2017. [DOI: 10.1016/j.molstruc.2016.08.025] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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15
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Mirallai SI, Koutentis PA. The Conversion of 4-Anilinoquinazoline- and 3-Aryl-4-imino-3,4-dihydro-quinazoline-2-carbonitriles into Benzo[4,5]imidazo[1,2-c]quinazoline-6-carbonitriles via Oxidative and Nonoxidative C-N Couplings. J Org Chem 2015; 80:8329-40. [PMID: 26252396 DOI: 10.1021/acs.joc.5b01514] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Benzo[4,5]imidazo[1,2-c]quinazoline-6-carbonitriles are prepared in high yields via three new routes: (1) a Cu(OTf)2 (0-5 mol %) catalyzed hypervalent iodine [PhI(OTf)2] mediated oxidative coupling of 4-anilinoquinazoline-2-carbonitriles in neat trifluoroacetic acid (TFA); (2) a Pd(OAc)2 (10 mol %) or CuI (10 mol %) mediated nonoxidative coupling of 4-(2-bromoanilino)quinazoline-2-carbonitrile; and (3) a nonoxidative Pd(Ar3P)3 [Ar = 3,5-(F3C)2C6H3] [aka Superstable Pd(0) Catalyst] (10 mol %) mediated intramolecular C-N cyclization of 3-(2-bromophenyl)-4-imino-3,4-dihydroquinazoline-2-carbonitriles. All new compounds are fully characterized.
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Affiliation(s)
- Styliana I Mirallai
- Department of Chemistry, University of Cyprus, P.O. Box 20537, 1678 Nicosia, Cyprus
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16
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Kaur N. Review of Microwave-Assisted Synthesis of Benzo-Fused Six-MemberedN,N-Heterocycles. SYNTHETIC COMMUN 2014. [DOI: 10.1080/00397911.2013.816736] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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17
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Synthesis of novel 5-phenylimidazo[1,2-c]quinazolin-3-amine derivatives via Groebke–Blackburn–Bienaymé multicomponent reaction. MONATSHEFTE FUR CHEMIE 2014. [DOI: 10.1007/s00706-014-1204-y] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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18
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Pařík P, Jansa J, Holešová S, Marek A, Klimešová V. Reactivity of Hydroxy and Amino Derivatives of 2-Phenyl-1 H-imidazoline and 2-Phenyl-1 H-imidazole toward Isocyanates: Synthesis of Appropriate Carbamates and Ureas. J Heterocycl Chem 2013. [DOI: 10.1002/jhet.984] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Patrik Pařík
- Faculty of Chemical Technology, Institute of Organic Chemistry and Technology; University of Pardubice; Studentská 573; 532 10 Pardubice; Czech Republic
| | - Josef Jansa
- Research Institute for Organic Syntheses (VUOS); Rybitví 296; 533 54 Rybitví; Czech Republic
| | - Sylva Holešová
- Nanotechnology Centre; VŠB-TU Ostrava; 17. listopadu 15/2172; 708 33 Ostrava-Poruba; Czech Republic
| | - Aleš Marek
- Institute of Organic Chemistry and Biochemistry AS CR, v.v.i.,; Flemingovo nám. 2; 166 10 Praha 6; Czech Republic
| | - Věra Klimešová
- Department of Inorganic and Organic Chemistry, Faculty of Pharmacy; Charles University; Heyrovského 1203; 500 05 Hradec Králové; Czech Republic
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19
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Zhang X, Zhou Y, Wang H, Guo D, Ye D, Xu Y, Jiang H, Liu H. An Effective Synthetic Entry to Fused Benzimidazoles via Iodocyclization. Adv Synth Catal 2011. [DOI: 10.1002/adsc.201100038] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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20
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Holešová S, Pařík P, Ludwig M. Clay-supported 2-phenyl-1H-imidazole derivatives for heterogeneous catalysis of Henry reaction. J Heterocycl Chem 2011. [DOI: 10.1002/jhet.669] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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21
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Shi DQ, Rong SF, Dou GL, Wang MM. One-pot synthesis of imidazo[1,2-c]quinazoline derivatives from nitro-componds reduced by zinc. J Heterocycl Chem 2009. [DOI: 10.1002/jhet.189] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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22
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Pařík P, Šenauerová S, Lišková V, Handlíř K, Ludwig M. Study of synthesis of 2-(2-alkoxyphenyl)-1H-imidazoles. Comparison of oxidative aromatization reactions of imidazolines. J Heterocycl Chem 2006. [DOI: 10.1002/jhet.5570430404] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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23
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Chapter 6.2 Six-membered ring systems: Diazines and benzo derivatives. ACTA ACUST UNITED AC 1999. [DOI: 10.1016/s0959-6380(99)80016-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register]
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