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Study the crystal structure of 4,4′-(propane-1,3-diyl)dipiperidinium sulfate monohydrate and its hydrogen bond catalytic activity in the mechanochemical synthesis of BIMs. J Mol Struct 2023. [DOI: 10.1016/j.molstruc.2023.134917] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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2
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Fahim H, Mihankhah P, Khaligh NG. Greener and scalable mechanosynthesis of bis(3-indolyl)methane as an example of versatile pharmaceutical scaffold: Is the mechanochemical technique a metal-free process? SYNTHETIC COMMUN 2022. [DOI: 10.1080/00397911.2022.2158104] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Hoda Fahim
- Department of Food Science and Technology, Sari Agricultural Sciences and Natural Resources University, Sari, Iran
| | - Peyman Mihankhah
- Mechanical, Automotive & Materials Engineering, Faculty of Engineering, University of Windsor, Windsor, ON, Canada
| | - Nader Ghaffari Khaligh
- Department of Food Science and Technology, Sari Agricultural Sciences and Natural Resources University, Sari, Iran
- Nanotechnology and Catalysis Research Center, Institute for Advanced Studies, University of Malaya, Kuala Lumpur, Malaysia
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3
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Ghorbani F, Pourmousavi SA, Kiyani H. Novel Biomass Derived from Grape Pomace Waste as an Efficient Nanocatalyst for the Synthesis of Dibenzoxanthene, Tetraketone, bis(indolyl)alkane and Chromene Derivatives and their Antimicrobial Evaluation. Curr Org Synth 2020; 17:440-456. [PMID: 32271697 DOI: 10.2174/1570179417666200409144600] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2019] [Revised: 02/19/2020] [Accepted: 03/05/2020] [Indexed: 11/22/2022]
Abstract
BACKGROUND Sulfonated carbon-based solid acids (CBSAs) have been reported as an efficient solid acid catalyst for many acid-catalyzed reactions. Furthermore, the use of carbon obtained from biomass waste has been explored and these materials showed a higher catalytic performance and higher stability compared to other solid acids. OBJECTIVE Novel biomass carbon-based solid acids nanoparticles with high catalytic activity in organic transformation, such as Grape pomace waste-SO3H Nanoparticles (GPW-SO3H NPs), were successfully synthesized. MATERIALS AND METHODS Grape pomace waste-SO3H Nanoparticles (GPW-SO3H NPs) were successfully synthesized. The grape pomace waste was dried in an oven at a temperature of 70°C and crushed to powder using an electric spice grinder. A mixture of powdered grape pomace waste (1 g) and concentrated sulfuric acid (>98%, 10 mL) was stirred at room temperature. Then, the resultant mixture was transferred into a 100 mL sealed Teflon-lined autoclave and kept at 180°C for 12 h. After cooling to room temperature, the resulting black solid was dried at 100°C in an oven under vacuum and the sulfonic acid-functionalized magnetic nanoparticles (Fe3O4@C-SO3H) were obtained. RESULTS AND DISCUSSIONS The catalytic activity of GPW-SO3H was assessed through an easy and rapid protocol developed for the one-pot synthesis of 14-aryl-14-H-dibenzo [a,j]xanthene, arylmethylene [bis(3- hydroxy-2-cyclohexene-1-one)], bis(indolyl)alkane and 2-amino-4-aryl-7-hydroxy-4H-chromene-3-carbonitrile derivatives in excellent yields. The advantages of this method include use of waste material for catalyst synthesis, high yields, mild reaction conditions, uncomplicated work-up procedures, neutral conditions, and recoverable catalyst. CONCLUSION We have shown that biomass-derived solid acids, prepared from grape pomace waste, serve as a non-toxic, inexpensive and a promising eco-friendly and novel carbon-based solid acid nanocatalyst for organic transformations.
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Affiliation(s)
- Fatemeh Ghorbani
- School of Chemistry, Damghan University, Damghan, 36716-41167, Iran
| | | | - Hamzeh Kiyani
- School of Chemistry, Damghan University, Damghan, 36716-41167, Iran
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Qiao J, Gao S, Wang L, Wei J, Li N, Xu X. Air-stable μ-oxo-bridged binuclear titanium(IV) salophen perfluorooctanesulfonate as a highly efficient and recyclable catalyst for the synthesis of bis(indolyl) methane derivatives. J Organomet Chem 2020. [DOI: 10.1016/j.jorganchem.2019.121039] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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5
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Kilic H, Bayindir S, Erdogan E, Agopcan Cinar S, Konuklar FAS, Bali SK, Saracoglu N, Aviyente V. Bismuth nitrate-promoted disproportionative condensation of indoles with cyclohexanone: a new-type azafulvenium reactivity of indole. NEW J CHEM 2017. [DOI: 10.1039/c7nj01987d] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The bismuth nitrate-promoted disproportionative condensation of indoles with cyclohexanone in one pot, to yield C3-cyclohexyl substituted indoles and 1,3-di(1H-indol-3-yl)benzene derivatives is reported for the first time.
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Affiliation(s)
- H. Kilic
- Department of Chemistry
- Faculty of Sciences
- Atatürk University
- Erzurum
- Turkey
| | - S. Bayindir
- Department of Chemistry
- Faculty of Sciences
- Atatürk University
- Erzurum
- Turkey
| | - E. Erdogan
- Department of Chemistry
- Faculty of Sciences
- Atatürk University
- Erzurum
- Turkey
| | - S. Agopcan Cinar
- Department of Chemistry
- Faculty of Arts and Sciences
- Boğaziçi University
- Istanbul
- Turkey
| | | | - S. K. Bali
- Department of Chemistry
- Faculty of Arts and Sciences
- Boğaziçi University
- Istanbul
- Turkey
| | - N. Saracoglu
- Department of Chemistry
- Faculty of Sciences
- Atatürk University
- Erzurum
- Turkey
| | - V. Aviyente
- Department of Chemistry
- Faculty of Arts and Sciences
- Boğaziçi University
- Istanbul
- Turkey
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An efficient synthesis of bis(indolyl) methanes and N,N′-alkylidene bisamides by Silzic under solvent free conditions. CHINESE CHEM LETT 2016. [DOI: 10.1016/j.cclet.2015.11.013] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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7
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El Sayed MT, Ahmed KM, Mahmoud K, Hilgeroth A. Synthesis, cytostatic evaluation and structure activity relationships of novel bis-indolylmethanes and their corresponding tetrahydroindolocarbazoles. Eur J Med Chem 2014; 90:845-59. [PMID: 25528338 DOI: 10.1016/j.ejmech.2014.12.008] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2014] [Revised: 11/02/2014] [Accepted: 12/05/2014] [Indexed: 10/24/2022]
Abstract
BIMs (bis-indolylmethanes) (1a-n) were synthesized using glacial acetic acid as a protic acid for promotion of the condensation reaction of indoles with aldehydes in high yields (86-98 %). Corresponding tetrahydroindolo[2,3-b]carbazoles (2a-m) were synthesized via condensation of BIMs with aldehydes. Ten synthesized compounds have been submitted to the national cancer institute in the USA where all the submitted samples have been selected for one dose screening. As a result of the one dose screening of BIMs (1e,f,h,i,n) and of the indolocarbazoles (2e,f,h,i,j) the average highest cytostatic effects was recorded here for the BIM 1h and the indolocarbazole (2e) that showed the lowest mean values of "47.39%" and of "21.63%" respectively. Both compounds (1h and 2e) were further tested in five dose screening with the tested substance (1h) being significantly more sensitive for several cancers cell line as corresponding to their GI50 values. Furthermore, the basically substituted derivative 2e showed the highest antipoliferative activity in a nanomolar scale towards the three selected cancers cell lines Non small lung cell NCI-H460 with GI50 "616 nM", Ovarian Cancer cell line OVCAR-4 with GI50 "562 nM" and Breast Cancer cell line MCF7 with GI50 "930 nM".
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Affiliation(s)
- Mardia T El Sayed
- Institute of Pharmacy, Martin-Luther University, Research Group of Drug Development and Analysis, Wolfgang- Langenbeck-Straße 4, 06120 Halle, Saale, Germany; Applied Organic Chemistry Department, National Research Centre, Cairo, Egypt.
| | - Khadiga M Ahmed
- Natural Compounds Laboratory, National Research Centre, Cairo, Egypt
| | - Kazem Mahmoud
- Institute of Pharmacy, Martin-Luther University, Research Group of Drug Development and Analysis, Wolfgang- Langenbeck-Straße 4, 06120 Halle, Saale, Germany
| | - Andreas Hilgeroth
- Institute of Pharmacy, Martin-Luther University, Research Group of Drug Development and Analysis, Wolfgang- Langenbeck-Straße 4, 06120 Halle, Saale, Germany
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8
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Chhattise PK, Arbuj SS, Mohite KC, Bhavsar SV, Horne AS, Handore KN, Chabukswar VV. One dimensional CdS nanostructures: heterogeneous catalyst for synthesis of aryl-3,3′-bis(indol-3-yl)methanes. RSC Adv 2014. [DOI: 10.1039/c4ra03419h] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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9
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Jella RR, Nagarajan R. Synthesis of indole alkaloids arsindoline A, arsindoline B and their analogues in low melting mixture. Tetrahedron 2013. [DOI: 10.1016/j.tet.2013.10.037] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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10
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Veisi H, Hemmati S, Veisi H. Highly Efficient Method for Synthesis of Bis(Indolyl)Methanes Catalyzed by FeCl3−based Ionic Liquid. J CHIN CHEM SOC-TAIP 2013. [DOI: 10.1002/jccs.200900034] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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11
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Saffar-Teluri A. Boron trifluoride supported on nano-SiO2: an efficient and reusable heterogeneous catalyst for the synthesis of bis(indolyl)methanes and oxindole derivatives. RESEARCH ON CHEMICAL INTERMEDIATES 2013. [DOI: 10.1007/s11164-013-1021-7] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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12
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Karami C, Ahmadian H, Nouri M, Jamshidi F, Mohammadi H, Ghodrati K, farrokhi A, Hamidi Z. A novel method for synthesis of cobalt manganese oxide nano catalysts as a recyclable catalyst for the synthesis of some bis (indolyl) methane derivatives. CATAL COMMUN 2012. [DOI: 10.1016/j.catcom.2012.06.024] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
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13
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Kamble S, Rashinkar G, Kumbhar A, Salunkhe R. Hydrotrope Induced Catalysis in Water: A Clean and Green Approach for the Synthesis of Medicinally Relevant Bis(indolyl)methanes and 2-Aryl Benzimidazoles. SYNTHETIC COMMUN 2011. [DOI: 10.1080/00397911.2010.530730] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/15/2022]
Affiliation(s)
- Santosh Kamble
- a Department of Chemistry , Shivaji University , Kolhapur , India
| | | | - Arjun Kumbhar
- a Department of Chemistry , Shivaji University , Kolhapur , India
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Yadav JS, Gupta MK, Jain R, Yadav NN, Reddy BVS. A practical synthesis of bis(indolyl)methanes employing boric acid. MONATSHEFTE FUR CHEMIE 2010. [DOI: 10.1007/s00706-010-0355-8] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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15
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Feng GL. Facile Synthesis of 2,2-Bis(1 H-Indol-3-yl)Acenaphthen-1(2H)-One Derivatives Catalysed by Ceric Ammonium Nitrate. JOURNAL OF CHEMICAL RESEARCH 2010. [DOI: 10.3184/030823410x12701382235942] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Ceric ammonium nitrate efficiently catalyses the reaction of acenaphthenequinone with indoles afforded symmetrical 2,2-bis(1H-indol-3-yl)acenaphthen-1(2H)-one in excellent yields within 2h under ethanol refluxing, as well as 2-hydroxy-2-indolylacenaphthen-1(2H)-one with indoles afforded the corresponding unsymmetrical 2,2-bis(1H-indol-3-yl)acenaphthen-1(2H)-one. This provides an efficient route to the synthesis of symmetrical and unsymmetrical 2,2-bis(1H-indol-3-yl)acenaphthen-1(2H)-one derivatives.
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Affiliation(s)
- Guo-Liang Feng
- School of Science, Hebei University of Science and Technology, 70 Yuhua East Road, Shijiazhuang 050018, P. R. China
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16
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Sridharan V, Menéndez JC. Cerium(IV) Ammonium Nitrate as a Catalyst in Organic Synthesis. Chem Rev 2010; 110:3805-49. [DOI: 10.1021/cr100004p] [Citation(s) in RCA: 211] [Impact Index Per Article: 15.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Vellaisamy Sridharan
- Departamento de Química Orgánica y Farmacéutica, Facultad de Farmacia, Universidad Complutense, 28040 Madrid, Spain
| | - J. Carlos Menéndez
- Departamento de Química Orgánica y Farmacéutica, Facultad de Farmacia, Universidad Complutense, 28040 Madrid, Spain
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17
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Sundberg RJ. Electrophilic Substitution Reactions of Indoles. TOPICS IN HETEROCYCLIC CHEMISTRY 2010. [DOI: 10.1007/7081_2010_52] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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18
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19
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Noguchi-Yachide T, Tetsuhashi M, Aoyama H, Hashimoto Y. Enhancement of chemically-induced HL-60 cell differentiation by 3,3'-diindolylmethane derivatives. Chem Pharm Bull (Tokyo) 2009; 57:536-40. [PMID: 19420792 DOI: 10.1248/cpb.57.536] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
3,3'-Diindolylmethane (DIM, 1) and its derivatives have been prepared, and their enhancing effects on chemically-induced HL-60 cell differentiation were analyzed. Among the prepared compounds, IndDIM (12) showed the most potent enhancing effect on HL-60 cell differentiation induced by chemicals, including retinoids, 1,25-dihydroxyvitamin D(3), 12-O-tetradecanoyl phorbol-13-acetate and dimethyl sulfoxide.
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20
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Rahimizadeh M, Eshghi H, Bakhtiarpoor Z, Pordel M. Ferric Hydrogensulfate as a Recyclable Catalyst for the Synthesis of Some New bis(indolyl)methane Derivatives. JOURNAL OF CHEMICAL RESEARCH 2009. [DOI: 10.3184/030823409x430194] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
New bis(indolyl)methanes were synthesised in excellent yields by the reaction of indole derivatives with aromatic and aliphatic aldehydes in the presence of ferric hydrogensulfate as an efficient, inexpensive, heterogeneous, reusable and non-toxic catalyst.
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Affiliation(s)
- Mohammad Rahimizadeh
- Department of Chemistry, School of Sciences, Ferdowsi University of Mashhad, Mashhad 91375-1436, Iran
| | - Hossein Eshghi
- Department of Chemistry, School of Sciences, Ferdowsi University of Mashhad, Mashhad 91375-1436, Iran
| | - Zahra Bakhtiarpoor
- Department of Chemistry, School of Sciences, Ferdowsi University of Mashhad, Mashhad 91375-1436, Iran
| | - Mehdi Pordel
- Department of Chemistry, School of Sciences, Ferdowsi University of Mashhad, Mashhad 91375-1436, Iran
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Wang S, Ji S. Facile Synthesis of Bis(indolyl)methanes catalyzed by Ferric Dodecyl Sulfonate [Fe(DS)3] in Water at Room Temperature. SYNTHETIC COMMUN 2008. [DOI: 10.1080/00397910701873318] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Affiliation(s)
- Shun‐Yi Wang
- a Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry and Chemical Engineering , Suzhou University , Suzhou , China
| | - Shun‐Jun Ji
- a Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry and Chemical Engineering , Suzhou University , Suzhou , China
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22
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GU DG, JI SJ. Various tri(indolyl)methanes were synthesized by condensation of indole and its derivatives with indole-3-carboxaldehyde using acidic ionic liquids [hmim]HSO4/EtOH as an efficient and green catalyst system. CHINESE J CHEM 2008. [DOI: 10.1002/cjoc.200890109] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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23
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A convenient synthesis of bis(indolyl)methanes catalyzed by diphosphooctadecatungstic acid. CATAL COMMUN 2008. [DOI: 10.1016/j.catcom.2007.07.039] [Citation(s) in RCA: 54] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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24
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Dabiri M, Salehi P, Baghbanzadeh M, Shakouri M, Otokesh S, Ekrami T, Doosti R. Efficient and eco-friendly synthesis of dihydropyrimidinones, bis(indolyl)methanes, and N-alkyl and N-arylimides in ionic liquids. JOURNAL OF THE IRANIAN CHEMICAL SOCIETY 2007. [DOI: 10.1007/bf03247224] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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25
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Srinivasa A, Nandeshwarappa BP, Kiran BM, Mahadevan KM. Antimony Trichloride Catalyzed Condensation of Indole and Carbonyl Compounds: Synthesis of Bis(indolyl)methanes. PHOSPHORUS SULFUR 2007. [DOI: 10.1080/10426500701418265] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Affiliation(s)
- A. Srinivasa
- a Chemical Sciences , Kuvempu University , Shankaraghatta , Karnataka , India
| | | | - Balaji M. Kiran
- a Chemical Sciences , Kuvempu University , Shankaraghatta , Karnataka , India
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26
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Zhang Z, Lin J. Efficient and Convenient Method for the Synthesis of Symmetrical Triindolylmethanes Catalyzed by Iodine. SYNTHETIC COMMUN 2007. [DOI: 10.1080/00397910601031652] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- Zhan‐Hui Zhang
- a College of Chemistry and Material Science, Hebei Normal University , Shijiazhuang, China
| | - Jin Lin
- a College of Chemistry and Material Science, Hebei Normal University , Shijiazhuang, China
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Azizian J, Teimouri F, Mohammadizadeh MR. Ammonium chloride catalyzed one-pot synthesis of diindolylmethanes under solvent-free conditions. CATAL COMMUN 2007. [DOI: 10.1016/j.catcom.2006.06.002] [Citation(s) in RCA: 46] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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28
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Dabiri M, Salehi P, Baghbanzadeh M, Vakilzadeh Y, Kiani S. Diammonium Hydrogen Phosphate as an Efficient and Inexpensive Catalyst for the Synthesis of Bis(indolyl)methanes under Solvent-Free Conditions. MONATSHEFTE FUR CHEMIE 2007. [DOI: 10.1007/s00706-007-0658-6] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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29
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Nair V, Deepthi A. Cerium(IV) ammonium nitrate--a versatile single-electron oxidant. Chem Rev 2007; 107:1862-91. [PMID: 17432919 DOI: 10.1021/cr068408n] [Citation(s) in RCA: 332] [Impact Index Per Article: 19.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Vijay Nair
- Organic Chemistry Section, Regional Research Laboratory (CSIR), Trivandrum, India.
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30
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Niknam K, Zolfigol MA, Sadabadi T, Nejati A. Preparation of indolylmethanes catalyzed by metal hydrogen sulfates. JOURNAL OF THE IRANIAN CHEMICAL SOCIETY 2006. [DOI: 10.1007/bf03245953] [Citation(s) in RCA: 85] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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31
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Affiliation(s)
- Li‐Ping Mo
- a College of Chemistry , Hebei Normal University , Shijiazhuang, China
| | - Zi‐Chuan Ma
- a College of Chemistry , Hebei Normal University , Shijiazhuang, China
| | - Zhan‐Hui Zhang
- a College of Chemistry , Hebei Normal University , Shijiazhuang, China
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Wang SY, Ji SJ. Facile synthesis of 3,3-di(heteroaryl)indolin-2-one derivatives catalyzed by ceric ammonium nitrate (CAN) under ultrasound irradiation. Tetrahedron 2006. [DOI: 10.1016/j.tet.2005.11.011] [Citation(s) in RCA: 145] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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34
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Zeng XF, Ji SJ, Wang SY. Novel method for synthesis of unsymmetrical bis(indolyl)alkanes catalyzed by ceric ammonium nitrate (CAN) under ultrasonic irradiation. Tetrahedron 2005. [DOI: 10.1016/j.tet.2005.08.040] [Citation(s) in RCA: 81] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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35
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Teimouri MB, Mivehchi H. Efficient Hexamethylenetetramine‐Bromine (HMTAB)‐Catalyzed Synthesis of Bis(indolyl)methanes in Water. SYNTHETIC COMMUN 2005. [DOI: 10.1081/scc-200063977] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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36
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Janosik T, Bergman J, Pelkey ET. Chapter 5.2 Five-membered ring systems: Pyrroles and benzo derivatives. A CRITICAL REVIEW OF THE 2003 LITERATURE PRECEDED BY TWO CHAPTERS ON CURRENT HETEROCYCLIC TOPICS 2005. [DOI: 10.1016/s0959-6380(05)80048-0] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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37
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Gallium(III) halide-catalyzed coupling of indoles with phenylacetylene: synthesis of bis(indolyl)phenylethanes. Tetrahedron Lett 2004. [DOI: 10.1016/j.tetlet.2004.08.126] [Citation(s) in RCA: 62] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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