Academic literature on the topic 'Tetrahydrobenzo[a]xanthen-11-ones'

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Journal articles on the topic "Tetrahydrobenzo[a]xanthen-11-ones"

1

da Silva, Daniel Leite, Bruna Silva Terra, Mateus Ribeiro Lage, et al. "Xanthenones: calixarenes-catalyzed syntheses, anticancer activity and QSAR studies." Organic & Biomolecular Chemistry 13, no. 11 (2015): 3280–87. http://dx.doi.org/10.1039/c4ob02611j.

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2

Emel, Pelit. "(±)-CSA Catalyzed Multicomponent Synthesis of Indeno Naphthopyrans and Tetrahydrobenzo[a]xanthen-11-ones Under Ultrasonic Irradiation." Chemical Science International Journal 20, no. 1 (2017): 1–8. https://doi.org/10.9734/CSJI/2017/35380.

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<strong>Aims: </strong>This study was designed to synthesis of Naphthopyrans and xanthenes derivatives in green chemistry approach. <strong>Methodology:</strong> New 13-aryl-indeno[1,2-<em>b</em>]naphtha[1,2-<em>e</em>]pyran-12(13<em>H</em>)-ones and tetrahydrobenzo[<em>a</em>]xanthen-11-ones were obtained by multi-component reaction of 2-naphthol, aromatic aldehydes, indane-1,3-dione or 5,5-dimethylcyclohexane-1,3-dione in the presence of (±)-camphor-10-sulfonic acid (CSA) catalyst under ultrasonic irradiation. <strong>Results:</strong> 13-aryl-indeno[1,2-<em>b</em>]naphtha[1,2-<em>e</em>]pyran-12(13<em>H</em>)-ones and tetrahydrobenzo[<em>a</em>]xanthen-11-ones were obtained in high yields. However, 13-aryl-indeno[1,2-b]naphtha[1,2-e]pyran-12(13H)-one derivatives gave better yields under this conditions. <strong>Conclusion:</strong> The desired compounds were obtained in high yields in short reaction times. The advantages of this method are using a powerful nontoxic, inexpensive, eco-friendly, recyclable, easy to handle, and water-soluble organo-catalyst, building several new bonds in one-pot multi-component reaction, low power consumption, short reaction times and high yields.
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3

Rao, Madharam Sudershan, Bhupender S. Chhikara, Rakesh Tiwari, Amir N. Shirazi, Keykavous Parang, and Anil Kumar. "Microwave-assisted and scandium triflate catalyzed synthesis of tetrahydrobenzo[a]xanthen-11-ones." Monatshefte für Chemie - Chemical Monthly 143, no. 2 (2011): 263–68. http://dx.doi.org/10.1007/s00706-011-0577-4.

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4

V. Shinde, Pravin, Bapurao B. Shingate, and Murlidhar S. Shingare. "An Organocatalyzed Expeditious Synthetic Route to Tetrahydrobenzo[a]xanthen-11-ones via Grinding Technique." Letters in Organic Chemistry 8, no. 8 (2011): 568–72. http://dx.doi.org/10.2174/157017811797249308.

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5

Olyaei, Abolfazl, Fatemeh Gahramannejad, and Reyhaneh Khoeiniha. "One-pot access to new tetrahydrobenzo[a]xanthen-11-ones and naphthopyranopyrimidines using 2,3-dihydroxynaphthalene." Synthetic Communications 46, no. 20 (2016): 1699–707. http://dx.doi.org/10.1080/00397911.2016.1223308.

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6

Rao, Madharam Sudershan, Bhupender S. Chhikara, Rakesh Tiwari, Amir N. Shirazi, Keykavous Parang, and Anil Kumar. "ChemInform Abstract: Microwave-Assisted and Scandium Triflate Catalyzed Synthesis of Tetrahydrobenzo[a]xanthen-11-ones." ChemInform 43, no. 21 (2012): no. http://dx.doi.org/10.1002/chin.201221140.

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7

Hassankhani, A., E. Mosaddegh, and S. Y. Ebrahimipour. "H4SiW12O40Catalyzed One-Pot Synthesis of 12-Aryl-8,9,10,12-tetrahydrobenzo[a] Xanthen-11-ones Under Solvent-Free Conditions." E-Journal of Chemistry 9, no. 2 (2012): 786–90. http://dx.doi.org/10.1155/2012/930251.

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An efficient and environmentally benign protocol for the one-pot, three-component synthesis of 12-aryl-8,9,10,12-tetrahydro-benzo[a]xanthen-11-one derivatives by condensation of aryl aldehydes, 2-naphthol and dimedone using H4SiW12O40(SiWA) as a reusable catalyst with high catalytic activity was reported. The reaction was carried out at 100 ºC under solvent-free conditions within 15-40 min in 82-91% yield.
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8

Pelit, Emel. "(±)-CSA Catalyzed Multicomponent Synthesis of Indeno Naphthopyrans and Tetrahydrobenzo[a]xanthen-11-ones Under Ultrasonic Irradiation." Chemical Science International Journal 20, no. 1 (2017): 1–8. http://dx.doi.org/10.9734/csji/2017/35380.

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9

Liu, Xiaoqin, Fei Wang, Hui Sun, Mengya Zheng, Hualan Wang та Kai Gong. "Synthesis of Tetrahydrobenzo[a]xanthen-11-ones Catalyzed byAcid Ionic Liquid Functionalized β-Cyclodextrin in Water". Chinese Journal of Organic Chemistry 39, № 10 (2019): 2843. http://dx.doi.org/10.6023/cjoc201902030.

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10

Shinde, Pravin V., Bapurao B. Shingate, and Murlidhar S. Shingare. "ChemInform Abstract: An Organocatalyzed Expeditious Synthetic Route to Tetrahydrobenzo[a]xanthen-11-ones via Grinding Technique." ChemInform 43, no. 6 (2012): no. http://dx.doi.org/10.1002/chin.201206136.

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