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Kaolin-catalysed one-pot synthesis of thiophene containing aminonaphthols under solvent-free condition and their in vitro anticancer and antioxidant activity. RESEARCH ON CHEMICAL INTERMEDIATES 2021. [DOI: 10.1007/s11164-021-04516-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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2
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Kaur G, Kumar R, Saroch S, Gupta VK, Banerjee B. Mandelic Acid: An Efficient Organo-catalyst for the Synthesis of 3-substituted-3- Hydroxy-indolin-2-ones and Related Derivatives in Aqueous Ethanol at Room Temperature. CURRENT ORGANOCATALYSIS 2021. [DOI: 10.2174/2213337207999200713145440] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Background:
Indoles and various indolyl derivatives are very common in naturally occurring
biologically active compounds. Many methods are being developed for the synthesis of various
bioactive indole derivatives.
Objective:
Synthesis of biologically promising structurally diverse indole derivatives under mild and
environmentally benign conditions.
Methods:
Synthesis of 3-hydroxy-3-(5-(trifluoromethoxy)-1H-indol-3-yl)indolin-2-one was achieved
by the reaction of an equimolar mixture of isatin and 3-(trifluoromethoxy)-1H-indol using 20 mol% of
mandelic acid as catalyst in aqueous ethanol at room temperature. Under the same optimized reaction
conditions, synthesis of 3-(3-hydroxy-2-oxoindolin-3-yl)chroman-2,4-diones was accomplished via the
reactions of substituted isatins and 4-hydroxycoumarin. On the other hand, 2-hydroxy-2-(indol-3-yl)-
indene-1,3-diones and 10-hydroxy-10-(5-methoxy-1H-indol-3- yl)phenanthren-9(10H)-one were synthesized
from the reactions of indoles and ninhydrin or 9,10-phenanthrenequinone respectively using
the same 20 mol% of mandelic acid as an efficient organo-catalyst in aqueous ethanol at room temperature.
Results:
Mild, safe and clean reaction profiles, energy efficiency, high atom-economy, use of naturally
occurring non-toxic organo-catalyst, easy isolation procedure by avoiding column chromatographic
purification and gram scale production are some the major advantages of this developed protocol.
Conclusion:
A simple, straightforward and eco-friendly protocol has been developed for the efficient
synthesis of biologically promising novel 3-hydroxy-3-(5-(trifluoromethoxy)-1H-indol- 3-yl)indolin-2-
one, 3-(3-hydroxy-2-oxoindolin-3-yl)chroman-2,4-diones, 2-hydroxy-2-(indol-3- yl)-indene-1,3-diones
and 10-hydroxy-10-(5-methoxy-1H-indol-3-yl)phenanthren-9(10H)-one using a catalytic amount of
mandelic acid in aqueous ethanol at room temperature.
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Affiliation(s)
- Gurpreet Kaur
- Department of Chemistry, Indus International University, V.P.O. Bathu, Distt. Una, Himachal Pradesh-174507, India
| | - Rajat Kumar
- Department of Chemistry, Indus International University, V.P.O. Bathu, Distt. Una, Himachal Pradesh-174507, India
| | - Shivam Saroch
- Department of Chemistry, Indus International University, V.P.O. Bathu, Distt. Una, Himachal Pradesh-174507, India
| | - Vivek Kumar Gupta
- Post-Graduate Department of Physics, University of Jammu, Jammu Tawi-180006, India
| | - Bubun Banerjee
- Department of Chemistry, Indus International University, V.P.O. Bathu, Distt. Una, Himachal Pradesh-174507, India
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3
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Synthesis of 3-ethynyl-3-hydroxy-2-oxindoles and 3-hydroxy-3-(indol-3-yl) indolin-2-ones using CuWO4 nanoparticles as recyclable heterogeneous catalyst in aqueous medium. CATAL COMMUN 2020. [DOI: 10.1016/j.catcom.2019.105874] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023] Open
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4
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Hen Egg White Lysozyme Catalyzed Efficient Synthesis of 3-Indolyl-3-hydroxy Oxindole in Aqueous Ethanol. Catal Letters 2018. [DOI: 10.1007/s10562-018-2551-9] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
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Tong J, Li YW, Xu DZ. Solvent-Controlled Friedel-Crafts Reaction for the Synthesis of 3-Indolyl-3-hydroxy Oxindoles and 3, 3-Diindolyl Oxindoles Catalyzed by Dabco-Base Ionic Liquids. ChemistrySelect 2017. [DOI: 10.1002/slct.201700603] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Affiliation(s)
- Jun Tong
- National Engineering Research Center of Pesticide (Tianjin); State Key Laboratory and Institute of Elemento-Organic Chemistry; Nankai University; Tianjin 300071 China
| | - Yu-Wei Li
- National Engineering Research Center of Pesticide (Tianjin); State Key Laboratory and Institute of Elemento-Organic Chemistry; Nankai University; Tianjin 300071 China
| | - Da-Zhen Xu
- National Engineering Research Center of Pesticide (Tianjin); State Key Laboratory and Institute of Elemento-Organic Chemistry; Nankai University; Tianjin 300071 China
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6
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Xue JW, Guo JT, He YH, Guan Z. Solvent-Controlled Enzyme-Catalyzed Friedel-Crafts Reactions of Indoles and Isatins by Using α-Chymotrypsin. ASIAN J ORG CHEM 2017. [DOI: 10.1002/ajoc.201600526] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Affiliation(s)
- Jing-Wen Xue
- Key Laboratory of Applied Chemistry of Chongqing Municipality; School of Chemistry and Chemical Engineering; Southwest University; Chongqing 400715 P. R. China
| | - Jun-Tao Guo
- Key Laboratory of Applied Chemistry of Chongqing Municipality; School of Chemistry and Chemical Engineering; Southwest University; Chongqing 400715 P. R. China
| | - Yan-Hong He
- Key Laboratory of Applied Chemistry of Chongqing Municipality; School of Chemistry and Chemical Engineering; Southwest University; Chongqing 400715 P. R. China
| | - Zhi Guan
- Key Laboratory of Applied Chemistry of Chongqing Municipality; School of Chemistry and Chemical Engineering; Southwest University; Chongqing 400715 P. R. China
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7
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Tong J, Huang LS, Xu DZ. An efficient Friedel–Crafts alkylation for the synthesis of 3-indolyl-3-hydroxy oxindoles and unsymmetrical 3,3-diaryl oxindoles catalyzed by Dabco-based ionic liquids in water. NEW J CHEM 2017. [DOI: 10.1039/c7nj00174f] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An efficient, green and reusable catalytic system for controlled 3-indolylation of isatins.
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Affiliation(s)
- Jun Tong
- National Engineering Research Center of Pesticide (Tianjin)
- State Key Laboratory and Institute of Elemento-Organic Chemistry
- College of Chemistry
- Nankai University
- Tianjin 300071
| | - Lu-Shan Huang
- National Engineering Research Center of Pesticide (Tianjin)
- State Key Laboratory and Institute of Elemento-Organic Chemistry
- College of Chemistry
- Nankai University
- Tianjin 300071
| | - Da-Zhen Xu
- National Engineering Research Center of Pesticide (Tianjin)
- State Key Laboratory and Institute of Elemento-Organic Chemistry
- College of Chemistry
- Nankai University
- Tianjin 300071
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8
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Tang XD, Li S, Guo R, Nie J, Ma JA. Chiral Phosphoric Acid Catalyzed Enantioselective Decarboxylative Alkylation of β-Keto Acids with 3-Hydroxy-3-indolyloxindoles. Org Lett 2015; 17:1389-92. [DOI: 10.1021/acs.orglett.5b00159] [Citation(s) in RCA: 63] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Xiao-Dong Tang
- Department
of Chemistry,
Key Laboratory of Systems Bioengineering (the Ministry of Education), Tianjin University, and Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300072, P. R. of China
| | - Shen Li
- Department
of Chemistry,
Key Laboratory of Systems Bioengineering (the Ministry of Education), Tianjin University, and Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300072, P. R. of China
| | - Ran Guo
- Department
of Chemistry,
Key Laboratory of Systems Bioengineering (the Ministry of Education), Tianjin University, and Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300072, P. R. of China
| | - Jing Nie
- Department
of Chemistry,
Key Laboratory of Systems Bioengineering (the Ministry of Education), Tianjin University, and Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300072, P. R. of China
| | - Jun-An Ma
- Department
of Chemistry,
Key Laboratory of Systems Bioengineering (the Ministry of Education), Tianjin University, and Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300072, P. R. of China
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9
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Babu KN, Kinthada LK, Ghosh S, Bisai A. Highly chemoselective synthesis of dimeric 2-oxindoles with a C-3/C-5′ linkage via Friedel–Crafts alkylations of 2-oxindoles with 3-hydroxy-2-oxindoles. Org Biomol Chem 2015; 13:10641-55. [DOI: 10.1039/c5ob01670c] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An expeditious approach to a variety of dimeric 2-oxindoles with a C-3/C-5′ linkage sharing an all-carbon quaternary center at the pseudobenzylic position has been developed via Lewis acid-catalyzed F–C alkylations.
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Affiliation(s)
- K. Naresh Babu
- Department of Chemistry
- Indian Institute of Science Education and Research Bhopal
- Bhopal – 462 066
- India
| | - Lakshmana K. Kinthada
- Department of Chemistry
- Indian Institute of Science Education and Research Bhopal
- Bhopal – 462 066
- India
| | - Santanu Ghosh
- Department of Chemistry
- Indian Institute of Science Education and Research Bhopal
- Bhopal – 462 066
- India
| | - Alakesh Bisai
- Department of Chemistry
- Indian Institute of Science Education and Research Bhopal
- Bhopal – 462 066
- India
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Rad-Moghadam K, Dehghan N. Application of cellulose/chitosan grafted nano-magnetites as efficient and recyclable catalysts for selective synthesis of 3-indolylindolin-2-ones. ACTA ACUST UNITED AC 2014. [DOI: 10.1016/j.molcata.2014.05.005] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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