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Relevant bibliographies by topics / 2-Amino-4H-chromene

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Academic literature on the topic '2-Amino-4H-chromene'

Author: Grafiati

Published: 4 June 2025

Last updated: 1 August 2025

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Journal articles on the topic "2-Amino-4H-chromene"

1

Ju Liu, Ju Liu, Jian Tao Shi Jian Tao Shi, Xue Chen Hao Xue Chen Hao, Yu Tong Liu Yu Tong Liu, Shi Ding Shi Ding, and Yang Wang and Ye Chen Yang Wang and Ye Chen. "Synthesis of New Substituted 2-amino-4H-benzo[h]chromene-3-carbonitrile Derivatives." Journal of the chemical society of pakistan 41, no. 5 (2019): 888. http://dx.doi.org/10.52568/000795/jcsp/41.05.2019.

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A series of novel substituted 2-amino-4H-benzo[h]chromene-3-carbonitrile derivatives was synthesised by condensation of different halogen derivatives with the hydroxy-group of 2-amino-8-hydroxy-4-styryl- 4H-benzo[h]chromene-3-carbonitrile and 2-amino-8-hydroxy-4- phenethyl-4H-benzo-[h]chromene-3-carbonitrile, which were prepared from cinnamaldehyde, malononitrile and naphthalene-1,6-diol through Knoevenagel condensation and cyclization reaction and then reduction with hydrogen in the presence of Pd/C at room temperature. Each intermediates and target compounds were obtained in good yields.

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2

Thanh, Nguyen D., Do S. Hai, Vu T. N. Bich, et al. "Using Sodium Hydride and Potassium Carbonate as Bases in Synthesis of Substituted 2-Amino-4-aryl-7-propargyloxy-4H-chromene-3-carbonitriles." Current Organic Synthesis 16, no. 3 (2019): 423–30. http://dx.doi.org/10.2174/1570179416666190104124652.

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Aims and Objective: 1-Alkynes are the important precursors for the CuAAC click chemistry. The hybrid of 1,2,3-triazole ring to the chromene ring and sugar moiety could bring some remarkable biological properties. Propargyl derivatives are usually used in the click chemistry. This article reported the synthesis of 2-amino-4-aryl-7-propargyloxy-4-aryl-4H-chromene-3-carbonitriles using propargyl bromide as alkylation agent and the use of potassium carbonate and sodium hydride as bases in the conversion of 2-amino-4-aryl-7- hydroxy-4-aryl-4H-chromene-3-carbonitriles into corresponding propargyl et

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3

Xu, Da-Zhen, Cheng-Bin Li, and Yu-Wei Li. "An Efficient and Ecofriendly Three-Component Reaction for the Rapid Synthesis of 2-Amino-4H-chromenes Catalyzed by a DABCO-Based Ionic Liquid." Synthesis 50, no. 18 (2018): 3708–14. http://dx.doi.org/10.1055/s-0037-1610123.

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An efficient, economical, and green strategy for the construction of biologically relevant 2-amino-4H-chromene scaffolds via a tandem Knoevenagel–Pinner cyclization–Michael reaction has been successfully developed. In the presence of DABCO-based ionic liquids, two different 2-amino-4H-chromene derivatives, 2-amino-4-(indol-3-yl)-4H-chromenes and 2-amino-4-(pyrazol-4-yl)-4H-chromenes, were prepared in good to excellent yields (81–97%) within short reaction times under mild conditions. All the products are purified by simple crystallization. The catalyst could be recycled for at least five times

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4

El-Maghraby, Awatef Mohamed. "Green Chemistry: New Synthesis of Substituted Chromenes and Benzochromenes via Three-Component Reaction Utilizing Rochelle Salt as Novel Green Catalyst." Organic Chemistry International 2014 (January 30, 2014): 1–6. http://dx.doi.org/10.1155/2014/715091.

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Substituted 2-amino-4-aryl-7-hydroxy-4H-chromene-3-carbonitriles (6), 2-amino-4-aryl-4H-benzo[h]chromene-3-carbonitriles (7), and 3-amino-1-aryl-1H-benzo[f]chromenes-2-carbonitriles (8) were prepared, in good yields, via one-pot three-component reactions of aromatic aldehydes (1), malononitrile (2), and resorcinol (3) or α-naphthol (4) or β-naphthol (5) in refluxing ethanol or water in the presence of Rochelle salt as novel green heterogeneous and reusable catalyst.

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5

Mahesh S and Balaji G L. "PEG-SO3H promoted one pot grinding method for the synthesis of 2-amino-4H-chromene-3-carboxylates." International Journal of Research in Pharmaceutical Sciences 11, no. 4 (2020): 5321–27. http://dx.doi.org/10.26452/ijrps.v11i4.3152.

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There is a crucial medical need for the synthesis of 4H-chromene compounds via simple efficient methods. 4H-chromene compounds are stated to have a wide range of medicinal applications such as anti-bacterial, anti-cancer (EPC2407 and MX58151), antimalarial, antifungal, anti-rheumatic and anti-viral properties depending up on the substituents which is present on the heterocyclic compounds. Nowadays multi component protocols shows a better advantages such as better yield, less reaction time and no usage of different solvents for synthesis of biological important heterocyclic compounds over other

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6

Mohammed, Hamid Hashim. "Synthesis of fused cyclic chromene and alicyclic chromene derivatives from 2-amino-4-[4-(dimethylamino)phenyl]5-oxo-4H,5H-pyrano [3,2-c]chromene-3-carbonitrile." Al-Mustansiriyah Journal of Science 27, no. 5 (2017): 36. http://dx.doi.org/10.23851/mjs.v27i5.165.

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Derivatives of fused cyclic chromene and alicyclic chromene were synthesized starting from 2-amino-4-[4-(dimethylamino)phenyl]5-oxo-4H,5H-pyrano [3,2-c]chromene-3-carbonitrile. The structures of the synthesized compounds were elucidated by spectral data : infrared spectra (FT-IR) and 1HNMR.

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7

Hiremath, Prashant B., and Kantharaju Kamanna. "A Microwave Accelerated Sustainable Approach for the Synthesis of 2-amino-4H-chromenes Catalysed by WEPPA: A Green Strategy." Current Microwave Chemistry 6, no. 1 (2019): 30–43. http://dx.doi.org/10.2174/2213335606666190820091029.

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Background: The agricultural wastes as a source offer an excellent alternative to replace many toxic and environmentally hazardous catalysts, due to their least toxicity, ease of biodegradability, and ability to act as a greener catalytic medium. Some of the agro-waste based catalysts reported are BFE, WERSA, WEB, and WEPBA. 2-Amino-4H-chromene derivatives are promising biologically potent heterocyclic compounds, due to their medicinal applications such as antimicrobial, anti-inflammatory, antibacterial, antiviral, anticancer, antidiuretic, anticoagulant and antianaphylactic activities. The pr

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8

Al-Masoudi, Najim A., Hamid H. Mohammed, Aws M. Hamdy, et al. "Synthesis and anti-HIV Activity of New Fused Chromene Derivatives Derived from 2-Amino-4-(1-naphthyl)-5-oxo-4H,5H-pyrano[3,2- c]chromene-3-carbonitrile." Zeitschrift für Naturforschung B 68, no. 3 (2013): 229–38. http://dx.doi.org/10.5560/znb.2013-2297.

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A new series of pyrano-chromene and pyrimido pyrano-chromene derivatives were synthesized starting from 2-amino-4-(1-naphthyl)-5-oxo-4H,5H-pyrano[3,2-c]chromene-3-carbonitrile (6). The structures of the synthesized compounds were elucidated by spectral data. Compounds 6-11, 13-15 and 18 have been selected for an inhibitory activity screening against HIV-1 and HIV-2 in MT-4 cells.

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9

Dotsenko, V. V., E. A. Varzieva, D. S. Buriy, N. A. Aksenov, and I. V. Aksenova. "First Synthesis of 2-Amino-5-hydroxy-4H-chromene-3-carbonitriles from 4-(2-Pyridylazo)resorcinol." Russian Journal of General Chemistry 92, no. 11 (2022): 2254–58. http://dx.doi.org/10.1134/s1070363222110081.

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Abstract 4-(2-Pyridylazo)resorcinol (PAR) sodium salt reacts with aromatic aldehydes and malononitrile in aqueous ethanol to form 2-amino-4-aryl-5-hydroxy-6-(2-pyridylazo)-4H-chromene-3-carbonitriles.

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10

Bardasov, Ivan N., Anastasiya U. Alekseeva, Oleg V. Ershov, and Dmitry A. Grishanov. "One-pot synthesis of 4-alkyl-2-amino-4H-chromene derivatives." Heterocyclic Communications 21, no. 3 (2015): 175–77. http://dx.doi.org/10.1515/hc-2015-0077.

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Conference papers on the topic "2-Amino-4H-chromene"

1

Javanshir, Shahrzad, and Mohammad Farhadnia. "Cellulose-Supported Metal Nanocomposite as a Green and Reusable Catalyst for One-Pot Multicomponent Synthesis of 2-Amino-4H-Chromene Derivatives." In The 18th International Electronic Conference on Synthetic Organic Chemistry. MDPI, 2014. http://dx.doi.org/10.3390/ecsoc-18-a019.

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2

Manake, A. P., S. R. Patil, and A. A. Patil. "An ultrasound and microwave assisted benign synthesis of 2-amino-4-aryl-7-hydroxy-4h-chromene-3-carbonitriles over harsh conventional method." In PROF. DINESH VARSHNEY MEMORIAL NATIONAL CONFERENCE ON PHYSICS AND CHEMISTRY OF MATERIALS: NCPCM 2018. Author(s), 2019. http://dx.doi.org/10.1063/1.5098647.

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3

Cahyana, A. H., S. Saidah, and B. Ardiansah. "Nano CuFe2O4: A reusable magnetic catalyst for the synthesis of 2-amino-5,10-dioxo-4-styryl-5,10-dihydro-4H-benzo[g]chromene-3-carbonitrile via a one-pot multicomponent reaction." In PROCEEDINGS OF THE 3RD INTERNATIONAL SYMPOSIUM ON CURRENT PROGRESS IN MATHEMATICS AND SCIENCES 2017 (ISCPMS2017). Author(s), 2018. http://dx.doi.org/10.1063/1.5064072.

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4

Montaño, Rocío, and Murali Venkata Unnamatla. "Efficient and rapid conversion of 3-amino imidazo[1,2-a] pyridin-2-yl)-4H-chromene-4-ones to its corresponding thio analogues using Lawesson’s reagent ." In The 22nd International Electronic Conference on Synthetic Organic Chemistry. MDPI, 2018. http://dx.doi.org/10.3390/ecsoc-22-05668.

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