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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2
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Xu Z, Gao Y, Wang S, Zhang Q, Zhang L, Shen L. Free-Radical-Promoted Remote Unactivated C(sp3)–H Dehydrogenative Coupling Reaction of Free Alcohols with Quinone and Chromone. J Org Chem 2022; 87:3461-3467. [DOI: 10.1021/acs.joc.1c03021] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Zhengbao Xu
- School of Life Sciences and Medicine, Shandong University of Technology, Zibo, Shandong 255000, P. R. China
| | - Yameng Gao
- School of Life Sciences and Medicine, Shandong University of Technology, Zibo, Shandong 255000, P. R. China
| | - Shanshan Wang
- School of Life Sciences and Medicine, Shandong University of Technology, Zibo, Shandong 255000, P. R. China
| | - Qili Zhang
- School of Life Sciences and Medicine, Shandong University of Technology, Zibo, Shandong 255000, P. R. China
| | - Lizhi Zhang
- School of Chemistry and Chemical Engineering, Shandong University of Technology, Zibo, Shandong 255000, P. R. China
| | - Liang Shen
- School of Life Sciences and Medicine, Shandong University of Technology, Zibo, Shandong 255000, P. R. China
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3
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Ning SS, Meng D, Zhang JY, Liu SL, Zhou NN, Jin X, Zhu HT. Metal-Free Intramolecular [3+2] Cycloaddition of γ-Hydroxy Acetylenic Ketones with Alkynes for the Synthesis of Naphtho[1,2- c]furan-5-ones and Its Derivatization via a Selective C(sp 2)-H Deuteration Reaction. J Org Chem 2021; 86:7347-7358. [PMID: 34032437 DOI: 10.1021/acs.joc.1c00224] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
A metal-free intramolecular [3+2] cycloaddtion has been achieved by treating benzene-linked propynol-ynes with AcOH/H2O in a one-pot manner. The reaction provides greener, 100% atom-economic, highly regioselective, and more practical access to functionalized naphtho[1,2-c]furan-5-ones with valuable and versatile applications. The regioselective α-deuteration of naphtho[1,2-c]furan-5-ones has been also presented with excellent deuterium incorporation and chemical yields. Moreover, the fluorescent properties of naphtho[1,2-c]furan-5-one products have been investigated in solution.
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Affiliation(s)
- Si-Si Ning
- Shannxi Key Laboratory of Phytochemistry, College of Chemistry and Chemical Engineering, Baoji University of Arts and Sciences, Baoji 721013, China
| | - Dan Meng
- Shannxi Key Laboratory of Phytochemistry, College of Chemistry and Chemical Engineering, Baoji University of Arts and Sciences, Baoji 721013, China
| | - Jie-Yun Zhang
- Shannxi Key Laboratory of Phytochemistry, College of Chemistry and Chemical Engineering, Baoji University of Arts and Sciences, Baoji 721013, China
| | - Shi-Lei Liu
- Shannxi Key Laboratory of Phytochemistry, College of Chemistry and Chemical Engineering, Baoji University of Arts and Sciences, Baoji 721013, China
| | - Ni-Ni Zhou
- Shannxi Key Laboratory of Phytochemistry, College of Chemistry and Chemical Engineering, Baoji University of Arts and Sciences, Baoji 721013, China
| | - Xiaojie Jin
- Gansu University Key Laboratory for Molecular Medicine & Chinese Medicine Prevention and Treatment of Major Diseases, Gansu University of Chinese Medicine, Lanzhou 730000, China
| | - Hai-Tao Zhu
- Shannxi Key Laboratory of Phytochemistry, College of Chemistry and Chemical Engineering, Baoji University of Arts and Sciences, Baoji 721013, China
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4
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Korzhenko KS, Osipov DV, Osyanin VА, Demidov MR, Klimochkin YN. Oxidative rearrangement of 3-aryl-1H-benzo[f]chromenes into 2-aroyl-1,2-dihydronaphtho[2,1-b]furans. Chem Heterocycl Compd (N Y) 2021. [DOI: 10.1007/s10593-021-02949-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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5
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Bian M, Mawjuda H, Gao H, Xu H, Zhou Z, Yi W. Lossen Rearrangement vs C-N Reductive Elimination Enabled by Rh(III)-Catalyzed C-H Activation/Selective Lactone Ring-Opening: Chemodivergent Synthesis of Quinolinones and Dihydroisoquinolinones. Org Lett 2020; 22:9677-9682. [PMID: 33274634 DOI: 10.1021/acs.orglett.0c03734] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
An unprecedented Rh(III)-catalyzed cascade C-H activation/Lossen rearrangement of aromatic amides with methyleneoxetanones has been realized along with a tunable C-N bond reductive elimination/trans esterification, giving divergent access to quinolinones and dihydroisoquinolinones via selective ring-opening of the four-membered lactone unit. Combined computational and experimental mechanistic studies defined the solvent-involved distinguished reaction paths, the origin of the observed chemodivergence, as well as the role of the substituent attached at the oxidizing directing group in tuning the reaction outcomes.
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Affiliation(s)
- Mengyao Bian
- The Fifth Affiliated Hospital, Key Laboratory of Molecular Target & Clinical Pharmacology and the State Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences, Guangzhou Medical University, Guangzhou, Guangdong 511436, China
| | - Hamdulla Mawjuda
- The Fifth Affiliated Hospital, Key Laboratory of Molecular Target & Clinical Pharmacology and the State Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences, Guangzhou Medical University, Guangzhou, Guangdong 511436, China
| | - Hui Gao
- The Fifth Affiliated Hospital, Key Laboratory of Molecular Target & Clinical Pharmacology and the State Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences, Guangzhou Medical University, Guangzhou, Guangdong 511436, China
| | - Huiying Xu
- The Fifth Affiliated Hospital, Key Laboratory of Molecular Target & Clinical Pharmacology and the State Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences, Guangzhou Medical University, Guangzhou, Guangdong 511436, China
| | - Zhi Zhou
- The Fifth Affiliated Hospital, Key Laboratory of Molecular Target & Clinical Pharmacology and the State Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences, Guangzhou Medical University, Guangzhou, Guangdong 511436, China
| | - Wei Yi
- The Fifth Affiliated Hospital, Key Laboratory of Molecular Target & Clinical Pharmacology and the State Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences, Guangzhou Medical University, Guangzhou, Guangdong 511436, China
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6
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Anti-cancer potential of (1,2-dihydronaphtho[2,1-b]furan-2-yl)methanone derivatives. Bioorg Med Chem Lett 2020; 30:127476. [PMID: 32781215 DOI: 10.1016/j.bmcl.2020.127476] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2020] [Revised: 08/02/2020] [Accepted: 08/05/2020] [Indexed: 12/19/2022]
Abstract
A series of 1,2-dihydronaphtho[2,1-b]furan derivatives were synthesized by cyclizing 1-(aryl/alkyl(arylthio)methyl)-naphthalen-2-ol and pyridinium bromides in the presence of 1,8-diazabicyclo[5.4.0]undec-7-ene (DBU) in very good yield. The synthesized compounds were evaluated for their anti-proliferative potential against human triple negative MDA-MB-468 and MCF-7 breast cancer cells and non-cancerous WI-38 cells (lung fibroblast cell) using MTT experiments. Among 21 synthesized compounds, three compounds (3a, 3b and 3 s) showed promising anti-cancer potential and compound 3b was found to have best anti-proliferative activities based on the results of several biochemical and microscopic experiments.
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7
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Li Z, Peng J, He C, Xu J, Ren H. Silver(I)-Mediated Cascade Reaction of 2-(1-Alkynyl)-2-alken-1-ones with 2-Naphthols. Org Lett 2020; 22:5768-5772. [DOI: 10.1021/acs.orglett.0c01803] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Zhanhuan Li
- Department of Chemistry, Zhejiang Sci-Tech University, Hangzhou 310018, P.R. China
| | - Jingyi Peng
- Department of Chemistry, Zhejiang Sci-Tech University, Hangzhou 310018, P.R. China
| | - Chonglong He
- Department of Chemistry, Zhejiang Sci-Tech University, Hangzhou 310018, P.R. China
| | - Jianfeng Xu
- Department of Chemistry, Zhejiang Sci-Tech University, Hangzhou 310018, P.R. China
| | - Hongjun Ren
- Advanced Research Institute and Department of Chemistry, Taizhou University, 1139 Shifu Avenue, Taizhou 318000, P.R. China
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8
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Olyaei A, Sadeghpour M. Dihydronaphthofurans: synthetic strategies and applications. RSC Adv 2020; 10:5794-5826. [PMID: 35497409 PMCID: PMC9049295 DOI: 10.1039/c9ra09987e] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2019] [Accepted: 01/29/2020] [Indexed: 11/21/2022] Open
Abstract
Dihydronaphthofurans (DHNs) are an important class of arene ring-fused furans which are widely found in many natural and non-natural products and drug candidates with relevant biological and pharmacological activities. Furthermore, vinylidene-naphthofurans exhibit photochromic properties when exposed to UV or sun light at room temperature. For these reasons, a vast array of synthetic procedures for the preparation of dihydronaphthofurans including annulation of naphthols with various reagents, cycloaddition reactions ([3 + 2], [4 + 1] and Diels-Alder), intramolecular transannulation, Friedel-Crafts, Wittig, Claisen rearrangement, neophyl rearrangement and other reactions under various conditions have been developed over the past decades. This review aims to describe the different strategies developed so far for the synthesis of dihydronaphthofurans and their applications. After a brief introduction to the types of dihydronaphthofurans and their biological activities, the different synthetic approaches such as chemical, photochemical, and electrochemical, methods are described and organized on the basis of the catalysts and the other reagents employed in the syntheses. The subsequent section focuses on biological and pharmacological applications and photochromic properties of the target compounds.
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Affiliation(s)
- Abolfazl Olyaei
- Department of Chemistry, Payame Noor University (PNU) PO BOX 19395-4697 Tehran Iran
| | - Mahdieh Sadeghpour
- Department of Chemistry, Takestan Branch, Islamic Azad University Takestan Iran
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9
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Bakthadoss M, Surendar M. Cascade annulation reaction (CAR): highly diastereoselective synthesis of pyranopyrazole scaffolds. RSC Adv 2020; 10:19003-19007. [PMID: 35518344 PMCID: PMC9053953 DOI: 10.1039/d0ra03400b] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2020] [Accepted: 05/11/2020] [Indexed: 12/26/2022] Open
Abstract
An unprecedented domino protocol for the novel synthesis of highly diverse and functionalized tetrahydro pyranopyrazole scaffolds using chalcone epoxide has been reported for the first time. This synthetic protocol generates three consecutive stereogenic centres in a highly diastereoselective manner with the formation of vicinal diol and a quaternary carbon centre. A wide range of substrates were utilized for the scope of this methodology and provided very good yields of pyranopyrazoles. The pyranopyrazoles were also transformed into densely functionalized tetrasubstituted olefins. An unprecedented domino protocol for the novel synthesis of highly diverse and functionalized tetrahydro pyranopyrazole scaffolds using chalcone epoxide has been reported.![]()
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Affiliation(s)
| | - Manickam Surendar
- Department of Chemistry
- Pondicherry University
- Pondicherry 605014
- India
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10
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Maji B. Stereoselective Haliranium, Thiiranium and Seleniranium Ion‐Triggered Friedel–Crafts‐Type Alkylations for Polyene Cyclizations. Adv Synth Catal 2019. [DOI: 10.1002/adsc.201900028] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Biswajit Maji
- Department of ChemistryIndira Gandhi National Tribal University Amarkantak – 484886 Madhya Pradesh India
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11
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Kaladevi S, Kamalraj M, Altia M, Rajasekar S, Anbarasan P. Cascade Rh(ii) and Yb(iii) catalyzed synthesis of substituted naphthofurans via transannulation of N-sulfonyl-1,2,3-triazoles with β-naphthols. Chem Commun (Camb) 2019; 55:4507-4510. [DOI: 10.1039/c8cc10306b] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Synthesis of substituted naphthofurans has been achieved via an efficient cascade Rh(ii)/Yb(iii) catalyzed transannulation of N-sulfonyl-1,2,3-triazoles with β-naphthols.
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Affiliation(s)
- Selvam Kaladevi
- Department of Chemistry
- Indian Institute of Technology Madras
- Chennai-600036
- India
| | - Mani Kamalraj
- Department of Chemistry
- Indian Institute of Technology Madras
- Chennai-600036
- India
| | - Minakshi Altia
- Department of Chemistry
- Indian Institute of Technology Madras
- Chennai-600036
- India
| | - Shanmugam Rajasekar
- Department of Chemistry
- Indian Institute of Technology Madras
- Chennai-600036
- India
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12
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Dong Y, Yang J, He S, Shi ZC, Wang Y, Zhang XM, Wang JY. Metal-free oxidative cross-dehydrogenative coupling of quinones with benzylic C(sp3)–H bonds. RSC Adv 2019; 9:27588-27592. [PMID: 35529195 PMCID: PMC9070767 DOI: 10.1039/c9ra05678e] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2019] [Accepted: 08/28/2019] [Indexed: 12/23/2022] Open
Abstract
A metal-free cross-dehydrogenative coupling of quinones with toluene derivatives has been established. A series of quinones were subjected to reaction with toluene derivatives in the presence of di-tertbutyl peroxide (DTBP) for direct synthesis of benzylquinones. The method exhibits good functional group tolerance, and desired products were obtained in moderate to good yields. Meanwhile, a radical pathway was proposed to describe the cross-dehydrogenative coupling of quinones with toluene derivatives. A metal-free cross-dehydrogenative coupling of quinones with toluene derivatives has been established. A series of quinones were subjected to reaction with toluene derivatives in the presence of DTBP for direct synthesis of benzylquinones.![]()
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Affiliation(s)
- Yu Dong
- Chengdu Institute of Organic Chemistry
- Chinese Academy of Sciences
- Chengdu 610041
- P. R. China
- University of Chinese Academy of Sciences
| | - Jian Yang
- Chengdu Institute of Organic Chemistry
- Chinese Academy of Sciences
- Chengdu 610041
- P. R. China
- University of Chinese Academy of Sciences
| | - Shuai He
- Southwest Minzu University
- Chengdu 610041
- P. R. China
| | | | - Yu Wang
- Guizhou Education University
- Guiyang 550018
- P. R. China
| | - Xiao-Mei Zhang
- Chengdu Institute of Organic Chemistry
- Chinese Academy of Sciences
- Chengdu 610041
- P. R. China
| | - Ji-Yu Wang
- Chengdu Institute of Organic Chemistry
- Chinese Academy of Sciences
- Chengdu 610041
- P. R. China
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13
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Hajra S, Maity S, Roy S, Maity R, Samanta S. Brønsted Acid Promoted Regioselective C-3 Arylation and Heteroarylation of Spiro-epoxyoxindoles for the Construction of All Carbon Quaternary Centres: A Detailed Study. European J Org Chem 2018. [DOI: 10.1002/ejoc.201801524] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Saumen Hajra
- Sanjay Gandhi Post-Graduate Institute of Medical Sciences Campus; Centre of Biomedical Research; Raebareli Road, Lucknow 226014 India
| | - Subrata Maity
- Sanjay Gandhi Post-Graduate Institute of Medical Sciences Campus; Centre of Biomedical Research; Raebareli Road, Lucknow 226014 India
- Department of Chemistry; Indian Institute of Technology Kharagpur; 721302 Kharagpur India
| | - Sayan Roy
- Sanjay Gandhi Post-Graduate Institute of Medical Sciences Campus; Centre of Biomedical Research; Raebareli Road, Lucknow 226014 India
| | - Ramkrishna Maity
- Sanjay Gandhi Post-Graduate Institute of Medical Sciences Campus; Centre of Biomedical Research; Raebareli Road, Lucknow 226014 India
| | - Srikrishna Samanta
- Sanjay Gandhi Post-Graduate Institute of Medical Sciences Campus; Centre of Biomedical Research; Raebareli Road, Lucknow 226014 India
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14
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Yi W, Chen W, Liu FX, Zhong Y, Wu D, Zhou Z, Gao H. Rh(III)-Catalyzed and Solvent-Controlled Chemoselective Synthesis of Chalcone and Benzofuran Frameworks via Synergistic Dual Directing Groups Enabled Regioselective C–H Functionalization: A Combined Experimental and Computational Study. ACS Catal 2018. [DOI: 10.1021/acscatal.8b02402] [Citation(s) in RCA: 62] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- Wei Yi
- Key Laboratory of Molecular Target and Clinical Pharmacology & State Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences & the Fifth Affiliated Hospital, Guangzhou Medical University, Guangzhou, Guangdong 511436, China
| | - Weijie Chen
- Key Laboratory of Molecular Target and Clinical Pharmacology & State Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences & the Fifth Affiliated Hospital, Guangzhou Medical University, Guangzhou, Guangdong 511436, China
| | - Fu-Xiaomin Liu
- Key Laboratory of Molecular Target and Clinical Pharmacology & State Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences & the Fifth Affiliated Hospital, Guangzhou Medical University, Guangzhou, Guangdong 511436, China
| | - Yuting Zhong
- Key Laboratory of Molecular Target and Clinical Pharmacology & State Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences & the Fifth Affiliated Hospital, Guangzhou Medical University, Guangzhou, Guangdong 511436, China
| | - Dan Wu
- Key Laboratory of Molecular Target and Clinical Pharmacology & State Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences & the Fifth Affiliated Hospital, Guangzhou Medical University, Guangzhou, Guangdong 511436, China
| | - Zhi Zhou
- Key Laboratory of Molecular Target and Clinical Pharmacology & State Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences & the Fifth Affiliated Hospital, Guangzhou Medical University, Guangzhou, Guangdong 511436, China
| | - Hui Gao
- Key Laboratory of Molecular Target and Clinical Pharmacology & State Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences & the Fifth Affiliated Hospital, Guangzhou Medical University, Guangzhou, Guangdong 511436, China
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, 510006, China
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15
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Chang MY, Hsiao YT. H 2SO 4-Mediated Stereocontrolled Annulation of Oxygenated Naphthalenes and 4-Alkenols: One-Pot Synthesis of Tetanthrenes. J Org Chem 2017; 82:11594-11602. [PMID: 28933849 DOI: 10.1021/acs.joc.7b02291] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
H2SO4-mediated one-pot stereocontrolled (4 + 2) annulation of 4-alkenols and oxygenated naphthalenes provided tetanthrenes in CH2Cl2 at 25 °C for 10 h. The use of various Brønsted acids or Lewis acids was investigated for a facile and efficient transformation. A plausible mechanism has been proposed.
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Affiliation(s)
- Meng-Yang Chang
- Department of Medicinal and Applied Chemistry, Kaohsiung Medical University Hospital, Kaohsiung Medical University , Kaohsiung 807, Taiwan
| | - Yu-Ting Hsiao
- Department of Medicinal and Applied Chemistry, Kaohsiung Medical University Hospital, Kaohsiung Medical University , Kaohsiung 807, Taiwan
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16
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Prasad B, Reddy VG, Krishna NH, Reddy NVS, Nanubolu JB, Alarifi A, Kamal A. Annulation of 4-Hydroxypyrones and α-Keto Vinyl Azides; A Regiospecific Approach towards the Synthesis of Furo[3, 2-c]Pyrone Scaffolds under Catalyst Free Condition. ChemistrySelect 2017. [DOI: 10.1002/slct.201701980] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Affiliation(s)
- Budaganaboyina Prasad
- Medicinal Chemistry and Biotechnology; CSIR-Indian Institute of Chemical Technology; Hyderabad 500007 India
| | - V. Ganga Reddy
- Medicinal Chemistry and Biotechnology; CSIR-Indian Institute of Chemical Technology; Hyderabad 500007 India
| | - Namballa Hari Krishna
- Medicinal Chemistry and Biotechnology; CSIR-Indian Institute of Chemical Technology; Hyderabad 500007 India
- Department of Medicinal Chemistry; National Institute of Pharmaceutical Education and Research (NIPER); Hyderabad 500037 India
| | - N. V. Subba Reddy
- Medicinal Chemistry and Biotechnology; CSIR-Indian Institute of Chemical Technology; Hyderabad 500007 India
| | - Jagadeesh Babu Nanubolu
- Centre for X-ray Crystallography, CSIR-Indian Institute of Chemical Technology; Hyderabad 500007 India
| | - Abdullah Alarifi
- Catalytic Chemistry Research Chair, Chemistry Department; College of Science; King Saud University; Riyadh 11451 Saudi Arabia
| | - Ahmed Kamal
- Medicinal Chemistry and Biotechnology; CSIR-Indian Institute of Chemical Technology; Hyderabad 500007 India
- Department of Medicinal Chemistry; National Institute of Pharmaceutical Education and Research (NIPER); Hyderabad 500037 India
- Catalytic Chemistry Research Chair, Chemistry Department; College of Science; King Saud University; Riyadh 11451 Saudi Arabia
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17
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Vieira LCC, Matsuo BT, Martelli LSR, Gall M, Paixão MW, Corrêa AG. Asymmetric synthesis of new γ-butenolides via organocatalyzed epoxidation of chalcones. Org Biomol Chem 2017; 15:6098-6103. [DOI: 10.1039/c7ob00165g] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A greener three-step sequence, with only one single chromatographic purification, afforded γ-butenolides in moderate overall yield and high enantiomeric excess.
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Affiliation(s)
- Lucas C. C. Vieira
- Centre of Excellence for Research in Sustainable Chemistry
- Department of Chemistry
- Federal University of São Carlos
- São Carlos
- Brazil
| | - Bianca T. Matsuo
- Centre of Excellence for Research in Sustainable Chemistry
- Department of Chemistry
- Federal University of São Carlos
- São Carlos
- Brazil
| | - Lorena S. R. Martelli
- Centre of Excellence for Research in Sustainable Chemistry
- Department of Chemistry
- Federal University of São Carlos
- São Carlos
- Brazil
| | - Mayara Gall
- Centre of Excellence for Research in Sustainable Chemistry
- Department of Chemistry
- Federal University of São Carlos
- São Carlos
- Brazil
| | - Marcio W. Paixão
- Centre of Excellence for Research in Sustainable Chemistry
- Department of Chemistry
- Federal University of São Carlos
- São Carlos
- Brazil
| | - Arlene G. Corrêa
- Centre of Excellence for Research in Sustainable Chemistry
- Department of Chemistry
- Federal University of São Carlos
- São Carlos
- Brazil
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18
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Naveen T, Deb A, Maiti D. Copper/P(t
Bu)3
-Mediated Regiospecific Synthesis of Fused Furans and Naphthofurans. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201609401] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Togati Naveen
- Department of Chemistry; Indian Institute of Technology Bombay; Powai Mumbai 400076 India
| | - Arghya Deb
- Department of Chemistry; Indian Institute of Technology Bombay; Powai Mumbai 400076 India
| | - Debabrata Maiti
- Department of Chemistry; Indian Institute of Technology Bombay; Powai Mumbai 400076 India
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19
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Naveen T, Deb A, Maiti D. Copper/P(tBu) 3 -Mediated Regiospecific Synthesis of Fused Furans and Naphthofurans. Angew Chem Int Ed Engl 2016; 56:1111-1115. [PMID: 27996192 DOI: 10.1002/anie.201609401] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2016] [Indexed: 01/12/2023]
Abstract
A novel [3+2] cycloaddition between a variety of cyclic ketones and diverse olefins or alkynes can be effectively promoted by copper in combination with the tri-tert-butylphosphine [P(tBu)3 ] ligand. This protocol exhibits excellent selectivity and provides an exemplary set of fused heterocycles in good to excellent yields. Present strategy also represents an extremely simple and atom-economic way to construct substituted fused furans and naphthofurans from readily available starting materials under mild reaction conditions. The utility of the method is further demonstrated by the synthesis of chiral furans from (R)-(-)-carvone and (S)-(+)-carvone. A plausible mechanism involving the oxidative radical cyclization has been suggested based on experimental observations.
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Affiliation(s)
- Togati Naveen
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai, 400076, India
| | - Arghya Deb
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai, 400076, India
| | - Debabrata Maiti
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai, 400076, India
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20
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Kumarswamyreddy N, Kesavan V. Stereoselective and Regioselective Assembly of Spirooxindole [2,1-b]furan Motifs through a Tandem Friedel-Crafts Alkylation/5-exo-dig-Cyclization. European J Org Chem 2016. [DOI: 10.1002/ejoc.201601030] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Nandarapu Kumarswamyreddy
- Chemical Biology Laboratory; Department of Biotechnology; Indian Institute of Technology Madras; Bhupat and Jyoti Mehta School of Biosciences; Chennai 600036 India
| | - Venkitasamy Kesavan
- Chemical Biology Laboratory; Department of Biotechnology; Indian Institute of Technology Madras; Bhupat and Jyoti Mehta School of Biosciences; Chennai 600036 India
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21
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Hajra S, Maity S, Roy S. Regioselective Friedel-Crafts Reaction of Electron-Rich Benzenoid Arenes and Spiroepoxyoxindole at the Spiro-Centre: Efficient Synthesis of Benzofuroindolines and 2H- Spiro[benzofuran]-3,3′-oxindoles. Adv Synth Catal 2016. [DOI: 10.1002/adsc.201600312] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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22
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Baral ER, Kim SH, Lee YR. Copper-Catalyzed C(sp2)-C(sp3) Cross-Dehydrogenative Coupling of Quinones with Cyclic Alkanes: One-Step Access to Parvaquone and its Analogs. ASIAN J ORG CHEM 2016. [DOI: 10.1002/ajoc.201600219] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
- Ek Raj Baral
- School of Chemical Engineering; Yeungnam University; Gyeongsan 712-749 Republic of Korea
| | - Sung Hong Kim
- Analysis Research Division; Daegu Center; Basic Science Institute; Daegu 702-701 Republic of Korea
| | - Yong Rok Lee
- School of Chemical Engineering; Yeungnam University; Gyeongsan 712-749 Republic of Korea
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23
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Huo C, Xie H, Yang C, Dong J, Wang Y. Stable radical cation salt initiated N–H insertion and related proton-transfer-delay three-component reaction. Tetrahedron Lett 2016. [DOI: 10.1016/j.tetlet.2016.04.012] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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24
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4-dimethylaminopyridine-catalyzed cascade reaction for efficient synthesis of naphthofurans. Chem Res Chin Univ 2016. [DOI: 10.1007/s40242-016-5245-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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25
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Ling J, Lam SK, Lo B, Lam S, Wong WT, Sun J, Chen G, Chiu P. Epoxy and aziridinyl enolsilanes in diastereoselective inter- and intramolecular Friedel–Crafts alkylations. Org Chem Front 2016. [DOI: 10.1039/c5qo00333d] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Diastereoselective Friedel–Crafts reactions of optically pure epoxy enolsilanes afford enantiomerically-enriched β-hydroxy-α-arylketones. Aziridinyl enolsilanes react in an analogous manner.
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Affiliation(s)
- Jesse Ling
- Department of Chemistry
- The University of Hong Kong
- China
- The State Key Laboratory of Synthetic Chemistry
- The University of Hong Kong
| | - Sze Kui Lam
- Department of Chemistry
- The University of Hong Kong
- China
| | - Brian Lo
- Department of Chemistry
- The University of Hong Kong
- China
| | - Sarah Lam
- Department of Chemistry
- The University of Hong Kong
- China
- The State Key Laboratory of Synthetic Chemistry
- The University of Hong Kong
| | - Wing-Tak Wong
- Department of Chemistry
- The University of Hong Kong
- China
| | - Jian Sun
- Department of Chemistry
- The University of Hong Kong
- China
| | - Guanhua Chen
- Department of Chemistry
- The University of Hong Kong
- China
| | - Pauline Chiu
- Department of Chemistry
- The University of Hong Kong
- China
- The State Key Laboratory of Synthetic Chemistry
- The University of Hong Kong
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26
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Mane V, Pandey J, Ayyagari N, Dey C, Kale R, Namboothiri INN. Synthesis of hydrazinoheterocycles from Morita–Baylis–Hillman adducts of nitroalkenes with azodicarboxylates. Org Biomol Chem 2016; 14:2427-38. [DOI: 10.1039/c5ob02656c] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
Hydrazinonitroalkenes derived from nitroalkenes and azodicarboxylates are excellent substrates for the synthesis of hitherto unreported hydrazinotriazoles and hydrazinodihydrofurans.
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Affiliation(s)
- Vaijinath Mane
- Department of Chemistry
- Indian Institute of Technology Bombay
- Mumbai 400076
- India
| | - Jyoti Pandey
- Department of Chemistry
- Indian Institute of Technology Bombay
- Mumbai 400076
- India
| | - Narasihmam Ayyagari
- Department of Chemistry
- Indian Institute of Technology Bombay
- Mumbai 400076
- India
| | - Chandan Dey
- Department of Chemistry
- Indian Institute of Technology Bombay
- Mumbai 400076
- India
| | - Raju Kale
- Department of Chemistry
- Indian Institute of Technology Bombay
- Mumbai 400076
- India
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27
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Huo C, Yuan Y. Brønsted Acid-Catalyzed Three-Component Reaction of Anilines, α-Oxoaldehydes, and α-Angelicalactone for the Synthesis of Complex Pyrrolidones. J Org Chem 2015; 80:12704-10. [DOI: 10.1021/acs.joc.5b02354] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Congde Huo
- Key Laboratory
of Eco-Environment-Related
Polymer Materials Ministry of Education, College of Chemistry and
Chemical Engineering, Northwest Normal University, Lanzhou, Gansu 730070, China
| | - Yong Yuan
- Key Laboratory
of Eco-Environment-Related
Polymer Materials Ministry of Education, College of Chemistry and
Chemical Engineering, Northwest Normal University, Lanzhou, Gansu 730070, China
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28
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Bian J, Qian X, Wang N, Mu T, Li X, Sun H, Zhang L, You Q, Zhang X. Palladium(II)-Catalyzed C–H Bond Activation/C–C Coupling/Intramolecular Tsuji–Trost Reaction Cascade: Facile Access to 2H-Pyranonaphthoquinones. Org Lett 2015; 17:3410-3. [DOI: 10.1021/acs.orglett.5b01304] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Jinlei Bian
- Jiangsu
Key Laboratory of Drug Design and Optimization, China Pharmaceutical University, Nanjing 210009, China
| | - Xue Qian
- Jiangsu
Key Laboratory of Drug Design and Optimization, China Pharmaceutical University, Nanjing 210009, China
| | - Nan Wang
- Jiangsu
Key Laboratory of Drug Design and Optimization, China Pharmaceutical University, Nanjing 210009, China
| | - Tong Mu
- Jiangsu
Key Laboratory of Drug Design and Optimization, China Pharmaceutical University, Nanjing 210009, China
| | - Xiang Li
- Jiangsu
Key Laboratory of Drug Design and Optimization, China Pharmaceutical University, Nanjing 210009, China
| | - Haopeng Sun
- Jiangsu
Key Laboratory of Drug Design and Optimization, China Pharmaceutical University, Nanjing 210009, China
| | - Lianshan Zhang
- National
Engineering
and Research Center for Target Drugs, Lianyungang, 222000, China
| | - Qidong You
- Jiangsu
Key Laboratory of Drug Design and Optimization, China Pharmaceutical University, Nanjing 210009, China
- State
Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing 210009, China
| | - Xiaojin Zhang
- Jiangsu
Key Laboratory of Drug Design and Optimization, China Pharmaceutical University, Nanjing 210009, China
- Department
of Organic Chemistry, School of Science, China Pharmaceutical University, Nanjing 210009, China
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29
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Sadeghpour M, Olyaei A, Lotfiyan J, Rajabi F. One-Pot Green Synthesis of Novel Polysubstituted 1,2-Dihydronaphtho[2,1-b]furans. SYNTHETIC COMMUN 2015. [DOI: 10.1080/00397911.2015.1017052] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Affiliation(s)
- Mahdieh Sadeghpour
- Department of Chemistry, Takestan Branch, Islamic Azad University, Takestan, Iran
| | - Abolfazl Olyaei
- Department of Chemistry, Payame Noor University (PNU), Tehran, Iran
| | - Jamshid Lotfiyan
- Department of Chemistry, Payame Noor University (PNU), Tehran, Iran
| | - Fatemeh Rajabi
- Department of Chemistry, Payame Noor University (PNU), Tehran, Iran
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30
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Zhang J, Yao J, Liu J, Xue S, Li Y, Wang C. Four-component reaction between naphthols, substituted β-nitrostyrenes, substituted benzaldehydes and ammonium acetate in water–PEG-400: an approach to construct polysubstituted naphthofuranamines. RSC Adv 2015. [DOI: 10.1039/c5ra07642k] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The diversity-oriented synthesis of naphtho[b]furans via a four-component reaction between naphthanols, substituted β-nitrostyrenes, substituted benzaldehydes and ammonium acetate has been developed.
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Affiliation(s)
- Jungui Zhang
- School of Chemistry and Chemical Engineering
- Yangzhou University
- Yangzhou 225002
- P. R. China
- New Division: School of Hydraulic
| | - Juan Yao
- School of Chemistry and Chemical Engineering
- Yangzhou University
- Yangzhou 225002
- P. R. China
| | - Jiaming Liu
- School of Chemistry and Chemical Engineering
- Yangzhou University
- Yangzhou 225002
- P. R. China
| | - Shuwen Xue
- School of Chemistry and Chemical Engineering
- Yangzhou University
- Yangzhou 225002
- P. R. China
| | - Yang Li
- School of Chemistry and Chemical Engineering
- Yangzhou University
- Yangzhou 225002
- P. R. China
| | - Cunde Wang
- School of Chemistry and Chemical Engineering
- Yangzhou University
- Yangzhou 225002
- P. R. China
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31
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Bian J, Qian X, Fan J, Li X, Sun H, You Q, Zhang X. NbCl5 mediated biomimetic cascade reaction: efficient and scalable one-pot synthesis of dunnione and nor-β-lapachone. Tetrahedron Lett 2015. [DOI: 10.1016/j.tetlet.2014.11.107] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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32
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Huo C, Yuan Y, Wu M, Jia X, Wang X, Chen F, Tang J. Auto-Oxidative Coupling of Glycine Derivatives. Angew Chem Int Ed Engl 2014; 53:13544-7. [DOI: 10.1002/anie.201406905] [Citation(s) in RCA: 143] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2014] [Revised: 08/30/2014] [Indexed: 11/09/2022]
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33
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Huo C, Yuan Y, Wu M, Jia X, Wang X, Chen F, Tang J. Auto-Oxidative Coupling of Glycine Derivatives. Angew Chem Int Ed Engl 2014. [DOI: 10.1002/ange.201406905] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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34
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Huo C, Wu M, Jia X, Xie H, Yuan Y, Tang J. Aerobic Oxidative Mannich Reaction Promoted by Catalytic Amounts of Stable Radical Cation Salt. J Org Chem 2014; 79:9860-4. [DOI: 10.1021/jo5017822] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Affiliation(s)
- Congde Huo
- Key Laboratory of Eco-Environment-Related
Polymer Materials, Ministry of Education, College of Chemistry and
Chemical Engineering, Northwest Normal University, Lanzhou, Gansu 730070, China
| | - Mingxia Wu
- Key Laboratory of Eco-Environment-Related
Polymer Materials, Ministry of Education, College of Chemistry and
Chemical Engineering, Northwest Normal University, Lanzhou, Gansu 730070, China
| | - Xiaodong Jia
- Key Laboratory of Eco-Environment-Related
Polymer Materials, Ministry of Education, College of Chemistry and
Chemical Engineering, Northwest Normal University, Lanzhou, Gansu 730070, China
| | - Haisheng Xie
- Key Laboratory of Eco-Environment-Related
Polymer Materials, Ministry of Education, College of Chemistry and
Chemical Engineering, Northwest Normal University, Lanzhou, Gansu 730070, China
| | - Yong Yuan
- Key Laboratory of Eco-Environment-Related
Polymer Materials, Ministry of Education, College of Chemistry and
Chemical Engineering, Northwest Normal University, Lanzhou, Gansu 730070, China
| | - Jing Tang
- Key Laboratory of Eco-Environment-Related
Polymer Materials, Ministry of Education, College of Chemistry and
Chemical Engineering, Northwest Normal University, Lanzhou, Gansu 730070, China
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35
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Mandha SR, Alla M, Nanubolu JB. "One-pot" access to dihydrofurans via tandem oxidative difunctionalization and ring contraction of aminopyrans. Org Biomol Chem 2014; 12:4412-20. [PMID: 24846686 DOI: 10.1039/c4ob00324a] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An operationally simple and efficient protocol for the construction of dihydrofuran derivatives has been accomplished via a sequential addition of N-chlorosuccinimide and a base to 2-amino-4H-pyran derivatives in alcohol medium. The one-pot protocol proceeding via tandem oxidative difunctionalization and ring contraction provides an entirely new strategy for the construction of the dihydrofuran skeleton.
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Affiliation(s)
- Santhosh Reddy Mandha
- Crop Protection Chemicals, CSIR-Indian Institute of Chemical Technology, Tarnaka, Hyderabad, India.
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36
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Huo CD, Bao XZ, Hu DC, Jia XD, Sun CG, Wang C. Triphenylphosphine-m-sulfonate/carbon tetrabromide as an easily recoverable catalyst system for the efficient synthesis of xanthene and xanthenone derivatives under solvent-free conditions. CHINESE CHEM LETT 2014. [DOI: 10.1016/j.cclet.2014.01.023] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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37
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Huo C, Kang L, Xu X, Jia X, Wang X, Yuan Y, Xie H. Friedel–Crafts alkylation of 2-naphthols with enamides and enethers induced by catalytic amount of triarylaminium salt. Tetrahedron 2014. [DOI: 10.1016/j.tet.2013.12.067] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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38
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Huo C, Wang C, Wu M, Jia X, Xie H, Yuan Y. Copper(I) Chloride-Catalyzed Aerobic Oxidative Arylation of Glycine Ester and Amide Derivatives. Adv Synth Catal 2014. [DOI: 10.1002/adsc.201300535] [Citation(s) in RCA: 73] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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39
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Huo C, Wang C, Wu M, Jia X, Wang X, Yuan Y, Xie H. Catalytic amounts of triarylaminium salt initiated aerobic oxidative coupling of N-aryl tetrahydroisoquinolines. Org Biomol Chem 2014; 12:3123-8. [DOI: 10.1039/c3ob42454e] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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40
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Huo C, Kang L, Xu X, Jia X, Wang X, Xie H, Yuan Y. Triarylaminium salt facilitated Friedel–Crafts reaction of indoles with enamides and vinyl ethers. Tetrahedron Lett 2014. [DOI: 10.1016/j.tetlet.2013.12.055] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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41
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Huo C, An J, Chang W, Jia X, Kang L, Wu M. Chemoselective cascade reaction of glycidic esters with 2-naphthol derivatives initiated by stable radical cation salt. Tetrahedron 2013. [DOI: 10.1016/j.tet.2013.05.109] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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42
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Huo C, Wang C, Sun C, Jia X, Wang X, Chang W, Wu M. Triarylaminium Salt-Initiated Aerobic Double Friedel-Crafts Reaction of Glycine Derivatives with Indoles. Adv Synth Catal 2013. [DOI: 10.1002/adsc.201300276] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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43
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Naredla RR, Klumpp DA. Contemporary Carbocation Chemistry: Applications in Organic Synthesis. Chem Rev 2013; 113:6905-48. [DOI: 10.1021/cr4001385] [Citation(s) in RCA: 263] [Impact Index Per Article: 23.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
- Rajasekhar Reddy Naredla
- Department of Chemistry
and Biochemistry, Northern Illinois University, DeKalb, Illinois 60115,
United States
| | - Douglas A. Klumpp
- Department of Chemistry
and Biochemistry, Northern Illinois University, DeKalb, Illinois 60115,
United States
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44
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Osyanin VA, Osipov DV, Klimochkin YN. Reactions of o-quinone methides with pyridinium methylides: a diastereoselective synthesis of 1,2-dihydronaphtho[2,1-b]furans and 2,3-dihydrobenzofurans. J Org Chem 2013; 78:5505-20. [PMID: 23668240 DOI: 10.1021/jo400621r] [Citation(s) in RCA: 77] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
A simple, general route to the 1,2-dihydronaphtho[2,1-b]furans and 2,3-dihydrobenzofurans substituted at C-2 by an acyl or aryl group, starting from phenolic Mannich bases and pyridinium ylides, has been developed. The mechanism of the reaction is believed to involve the formation of the o-quinone methide intermediate, Michael-type addition of the ylide to the o-quinone methide, followed by intramolecular nucleophilic substitution.
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Affiliation(s)
- Vitaly A Osyanin
- Department of Organic Chemistry, Samara State Technical University, 244 Molodogvardeiskaya Street, 443100 Samara, Russian Federation.
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45
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Tanoue A, Yoo WJ, Kobayashi S. Antimony/N-Hydroxyphthalimide as a Catalyst System for Cross-Dehydrogenative Coupling Reactions under Aerobic Conditions. Adv Synth Catal 2013. [DOI: 10.1002/adsc.201200999] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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46
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Tandem reaction between chalcone epoxides and 2-naphthyl ethers to construct complex naphtho[2,1-b]furans. Tetrahedron Lett 2013. [DOI: 10.1016/j.tetlet.2012.12.078] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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