1
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Xu L, Rong Y, Liao H, Pan M, Qian Y, Rong L, Zhang J. Construction of Spiro[benzo[ a]acridine-12,4'-imidazolidine]-2',5'-dione Derivatives via Ring-Opening and Recyclization of Isatins and C-OH Cleavage of 2-Naphthol. J Org Chem 2023. [PMID: 37154738 DOI: 10.1021/acs.joc.3c00304] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/10/2023]
Abstract
An efficient three-component reaction to access spiro[benzo[a]acridine-12,4'-imidazolidine]-2',5'-dione derivatives has been developed through the ring-opening and recyclization process of isatins and dehydroxylation of 2-naphthol, which is different from their conventional reaction modes. Experimental observations suggest that p-toluenesulfonic acid is the key factor that promotes the success of this synthetic strategy. The research provided a novel approach for the construction of spiro compounds from isatins and 2-naphthol in organic synthesis.
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Affiliation(s)
- Linlin Xu
- Key Lab of Environment and Health, School of Public Health, Xuzhou Medical University, Xuzhou 221004, Jiangsu, P. R. China
| | - Yuchen Rong
- Taizhou Institute of Science & Technology, Nanjing University of Science and Technology, Taizhou 22539, Jiangsu, P. R. China
| | - Hailin Liao
- Chemistry and Materials Science, Jiangsu Normal University, Xuzhou 221116, Jiangsu, P. R. China
| | - Mei Pan
- Chemistry and Materials Science, Jiangsu Normal University, Xuzhou 221116, Jiangsu, P. R. China
| | - Yuliang Qian
- Chemistry and Materials Science, Jiangsu Normal University, Xuzhou 221116, Jiangsu, P. R. China
| | - Liangce Rong
- Chemistry and Materials Science, Jiangsu Normal University, Xuzhou 221116, Jiangsu, P. R. China
| | - Jinpeng Zhang
- Key Lab of Environment and Health, School of Public Health, Xuzhou Medical University, Xuzhou 221004, Jiangsu, P. R. China
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Babar K, Zahoor AF, Ahmad S, Akhtar R. Recent synthetic strategies toward the synthesis of spirocyclic compounds comprising six-membered carbocyclic/heterocyclic ring systems. Mol Divers 2020; 25:2487-2532. [PMID: 32696299 DOI: 10.1007/s11030-020-10126-x] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2020] [Accepted: 07/07/2020] [Indexed: 12/12/2022]
Abstract
Spirocyclic compounds fascinate the synthetic chemists due to their privileged ring system and efficacy in drug discovery. Many natural compounds comprise spirocyclic moiety in their skeleton and are effective in pharmaceutical industry. Over the years, many synthetic methodologies have been established for the construction of spirocyclic compounds. In this review, recent synthetic approaches to accessing various spirocompounds comprising six-membered carbocycles/heterocycles have been summarized.
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Affiliation(s)
- Kashaf Babar
- Department of Chemistry, Government College University Faisalabad, Faisalabad, 38000, Pakistan
| | - Ameer Fawad Zahoor
- Department of Chemistry, Government College University Faisalabad, Faisalabad, 38000, Pakistan.
| | - Sajjad Ahmad
- Department of Chemistry, University of Engineering and Technology, Faisalabad, 38000, Pakistan
| | - Rabia Akhtar
- Department of Chemistry, Government College University Faisalabad, Faisalabad, 38000, Pakistan
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3
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Seo DY, Lee S, Min BK, Kim JN. Synthesis of Spirooxindoles Bearing Benzopyrano[2,3-b]indole Moiety by NBS-Mediated Oxidative Coupling Reaction. B KOREAN CHEM SOC 2018. [DOI: 10.1002/bkcs.11535] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Da Young Seo
- Department of Chemistry and Institute of Basic Science; Chonnam National University; Gwangju 500-757 Korea
| | - Sangku Lee
- Targeted Medicine Research Center; Korea Research Institute of Bioscience and Biotechnology; Cheongwon 363-883 Korea
| | - Beom Kyu Min
- Department of Chemistry and Institute of Basic Science; Chonnam National University; Gwangju 500-757 Korea
| | - Jae Nyoung Kim
- Department of Chemistry and Institute of Basic Science; Chonnam National University; Gwangju 500-757 Korea
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4
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Maloo P, Roy TK, Sawant DM, Pardasani RT, Salunkhe MM. A catalyst-free, one-pot multicomponent synthesis of spiro-benzimidazoquinazolinones via a Knoevenagel–Michael-imine pathway: a microwave assisted approach. RSC Adv 2016. [DOI: 10.1039/c6ra05322j] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A multi-component route for the synthesis of spiro-benzimidazoquinazolinones was developed and its mechanism was studied.
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Affiliation(s)
- Preeti Maloo
- Department of Chemistry
- SCSP Central University of Rajasthan Bandarsindri
- Kishangarh – 305817
- India
| | - Tapta Kanchan Roy
- Department of Chemistry
- SCSP Central University of Rajasthan Bandarsindri
- Kishangarh – 305817
- India
| | - Devesh M. Sawant
- Department of Pharmacy
- SCSP Central University of Rajasthan Bandarsindri
- Kishangarh – 305 817
- India
| | - Ram T. Pardasani
- Department of Chemistry
- SCSP Central University of Rajasthan Bandarsindri
- Kishangarh – 305817
- India
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