1
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Pu X, Fu Z, Yang Y, Wu D, Deng P, Lan J. One-Pot Synthesis of Dihydrobenzo[ a]fluorenes via Cascade C-H Annulation of Thiobenzamide with Alkynes. J Org Chem 2024; 89:13110-13116. [PMID: 39259937 DOI: 10.1021/acs.joc.4c01228] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/13/2024]
Abstract
We herein disclose a highly efficient one-pot synthetic strategy for dihydrobenzo[a]fluorenes via cascade rhodium(III)-catalyzed ortho-C-H activation/annulation of thiobenzamides with aryl ethynyl ketones and subsequently copper(II)-promoted intramolecular C-H/C-H cross-coupling reactions. Mechanistic investigations suggest that Cu(II) plays two crucial roles by serving as a sulfide scavenger to regenerate the Rh(III) catalyst and promoting the intramolecular C-H/C-H cross-coupling reaction. This protocol greatly streamlines accesses to a variety of appealing tetracyclic benzo[a]fluorene skeletons, which may have potential biological activity and medicinal properties.
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Affiliation(s)
- Xingwen Pu
- Key Laboratory of Green Chemistry and Technology of Ministry of Education, College of Chemistry, Sichuan University, 29 Wangjiang Road, Chengdu 610064, China
| | - Zhangyi Fu
- Key Laboratory of Green Chemistry and Technology of Ministry of Education, College of Chemistry, Sichuan University, 29 Wangjiang Road, Chengdu 610064, China
| | - Yudong Yang
- Key Laboratory of Green Chemistry and Technology of Ministry of Education, College of Chemistry, Sichuan University, 29 Wangjiang Road, Chengdu 610064, China
| | - Di Wu
- Key Laboratory of Green Chemistry and Technology of Ministry of Education, College of Chemistry, Sichuan University, 29 Wangjiang Road, Chengdu 610064, China
| | - Pengchi Deng
- Analytical & Testing Center, Sichuan University, 29 Wangjiang Road, Chengdu 610064, China
| | - Jingbo Lan
- Key Laboratory of Green Chemistry and Technology of Ministry of Education, College of Chemistry, Sichuan University, 29 Wangjiang Road, Chengdu 610064, China
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2
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Jiang S, Liang M, Bai J, Yang R, Chen X, Huang H, Ding HX, Luo MJ, Song XR, Xiao Q. TFA-Promoted Cascade Sulfonylation/Rearrangement/Cyclization of 1,5-Diynols and Sodium Sulfinates to Construct Sulfonylated Benzo[ b]fluorenes. J Org Chem 2024; 89:6416-6427. [PMID: 38616352 DOI: 10.1021/acs.joc.4c00443] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/16/2024]
Abstract
A novel conversion of 1,5-diynols into sulfonylated benzo[b]fluorenes is reported by a TFA-promoted cascade cyclization with sodium sulfinates under mild conditions. This strategy provides an efficient and practical approach for accessing various sulfonated benzo[b]fluorenes in moderate to excellent yields under metal-free conditions. On the basis of the control experimental results and density functional theory calculations, a possible cascade transformation mechanism consisting of the dehydration of propargylic alcohols, sulfonylation, allenylation, and Schmittel-type cyclization is proposed. It is worth noting that TFA played an important role in this cascade cyclization, which promoted C-SO2R bond cleavage in a propargylic sulfone intermediate to form allenyl sulfones, followed by Schmittel-type cyclization to give the target product.
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Affiliation(s)
- Shimin Jiang
- Institute of Organic Chemistry, Jiangxi Science & Technology Normal University, Key Laboratory of Organic Chemistry, Nanchang, Jiangxi 330013, China
| | - Meng Liang
- Institute of Organic Chemistry, Jiangxi Science & Technology Normal University, Key Laboratory of Organic Chemistry, Nanchang, Jiangxi 330013, China
| | - Jiang Bai
- Institute of Organic Chemistry, Jiangxi Science & Technology Normal University, Key Laboratory of Organic Chemistry, Nanchang, Jiangxi 330013, China
| | - Ruchun Yang
- Institute of Organic Chemistry, Jiangxi Science & Technology Normal University, Key Laboratory of Organic Chemistry, Nanchang, Jiangxi 330013, China
| | - Xi Chen
- Institute of Organic Chemistry, Jiangxi Science & Technology Normal University, Key Laboratory of Organic Chemistry, Nanchang, Jiangxi 330013, China
| | - Haiyang Huang
- Institute of Organic Chemistry, Jiangxi Science & Technology Normal University, Key Laboratory of Organic Chemistry, Nanchang, Jiangxi 330013, China
| | - Hai-Xin Ding
- Institute of Organic Chemistry, Jiangxi Science & Technology Normal University, Key Laboratory of Organic Chemistry, Nanchang, Jiangxi 330013, China
| | - Mu-Jia Luo
- Institute of Organic Chemistry, Jiangxi Science & Technology Normal University, Key Laboratory of Organic Chemistry, Nanchang, Jiangxi 330013, China
| | - Xian-Rong Song
- Institute of Organic Chemistry, Jiangxi Science & Technology Normal University, Key Laboratory of Organic Chemistry, Nanchang, Jiangxi 330013, China
| | - Qiang Xiao
- Institute of Organic Chemistry, Jiangxi Science & Technology Normal University, Key Laboratory of Organic Chemistry, Nanchang, Jiangxi 330013, China
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3
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Li W, Yu Y, Yang J, Fu K, Zhang X, Shi S, Li T. Synthesis of Fluoren-9-ones via Pd-Catalyzed Annulation of 2-Iodobiphenyls with Vinylene Carbonate. Chem Asian J 2024; 19:e202301040. [PMID: 38019114 DOI: 10.1002/asia.202301040] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2023] [Accepted: 11/27/2023] [Indexed: 11/30/2023]
Abstract
A palladium-catalyzed reaction for intermolecular selective C-H cyclocarbonylation of 2-iodobiphenyls is described. Intriguingly, the vinylene carbonate acts as a carbon monoxide transfer agent to enable the annulation reaction. Moreover, as a versatile synthon, fluoren-9-one can be transformed into a variety of functionalized organic molecules, such as [1,1'-biphenyl]-2-carboxylic acid, 1'H,3'H-spiro[fluorene-9,2'-perimidine] and N-tosylhydrazones.
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Affiliation(s)
- Wenguang Li
- Drug Synthesis Engineering Technology Research Center of Henan Province for Photoelectric Green Catalysis, Engineering Technology Research Center of Henan Province for Solar Catalysis, College of Chemistry and Pharmaceutical Engineering, Nanyang Normal University, Henan, 473061, China
- State Key Laboratory of Motor Vehicle Biofuel Technology, Henan Tianguan Enterprise Group Company Limited, Henan, 473000, China
| | - Yongqi Yu
- Drug Synthesis Engineering Technology Research Center of Henan Province for Photoelectric Green Catalysis, Engineering Technology Research Center of Henan Province for Solar Catalysis, College of Chemistry and Pharmaceutical Engineering, Nanyang Normal University, Henan, 473061, China
| | - Jie Yang
- Drug Synthesis Engineering Technology Research Center of Henan Province for Photoelectric Green Catalysis, Engineering Technology Research Center of Henan Province for Solar Catalysis, College of Chemistry and Pharmaceutical Engineering, Nanyang Normal University, Henan, 473061, China
| | - Kaifang Fu
- Drug Synthesis Engineering Technology Research Center of Henan Province for Photoelectric Green Catalysis, Engineering Technology Research Center of Henan Province for Solar Catalysis, College of Chemistry and Pharmaceutical Engineering, Nanyang Normal University, Henan, 473061, China
| | - Xu Zhang
- Drug Synthesis Engineering Technology Research Center of Henan Province for Photoelectric Green Catalysis, Engineering Technology Research Center of Henan Province for Solar Catalysis, College of Chemistry and Pharmaceutical Engineering, Nanyang Normal University, Henan, 473061, China
| | - Shukui Shi
- Drug Synthesis Engineering Technology Research Center of Henan Province for Photoelectric Green Catalysis, Engineering Technology Research Center of Henan Province for Solar Catalysis, College of Chemistry and Pharmaceutical Engineering, Nanyang Normal University, Henan, 473061, China
| | - Ting Li
- Drug Synthesis Engineering Technology Research Center of Henan Province for Photoelectric Green Catalysis, Engineering Technology Research Center of Henan Province for Solar Catalysis, College of Chemistry and Pharmaceutical Engineering, Nanyang Normal University, Henan, 473061, China
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4
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Jiang S, Du S, Bai J, Chen X, Liang M, Lin S, Luo MJ, Song XR, Xiao Q. Cascade Cyclization of 1,5-Diynols and (RO) 2P(O)SH to Construct Benzo[ b]fluorenyl S-Alkyl Phosphorothioates under Catalyst-Free Conditions. J Org Chem 2023; 88:14571-14586. [PMID: 37789588 DOI: 10.1021/acs.joc.3c01596] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/05/2023]
Abstract
An efficient and practical cascade cyclization of 1,5-diynols with (RO)2P(O)SH as the acid promoter and nucleophile under mild conditions was developed. A variety of highly substituted benzo[b]fluorenyl-containing S-alkyl phosphorothioates were successfully constructed in moderate to excellent yields. Furthermore, this protocol exhibited good functional group tolerance, a broad substrate scope, and potential practical applications, with water as the only byproduct. The reaction proceeded with allenyl thiophosphate as a key intermediate, followed by a Schmittel-type cyclization process to produce the target product.
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Affiliation(s)
- Shimin Jiang
- Institute of Organic Chemistry, Jiangxi Science &Technology Normal University, Key Laboratory of Organic Chemistry, Jiangxi Province, Nanchang 330013, China
| | - Sha Du
- Institute of Organic Chemistry, Jiangxi Science &Technology Normal University, Key Laboratory of Organic Chemistry, Jiangxi Province, Nanchang 330013, China
| | - Jiang Bai
- Institute of Organic Chemistry, Jiangxi Science &Technology Normal University, Key Laboratory of Organic Chemistry, Jiangxi Province, Nanchang 330013, China
| | - Xi Chen
- Institute of Organic Chemistry, Jiangxi Science &Technology Normal University, Key Laboratory of Organic Chemistry, Jiangxi Province, Nanchang 330013, China
| | - Meng Liang
- Institute of Organic Chemistry, Jiangxi Science &Technology Normal University, Key Laboratory of Organic Chemistry, Jiangxi Province, Nanchang 330013, China
| | - Shihong Lin
- Institute of Organic Chemistry, Jiangxi Science &Technology Normal University, Key Laboratory of Organic Chemistry, Jiangxi Province, Nanchang 330013, China
| | - Mu-Jia Luo
- Institute of Organic Chemistry, Jiangxi Science &Technology Normal University, Key Laboratory of Organic Chemistry, Jiangxi Province, Nanchang 330013, China
| | - Xian-Rong Song
- Institute of Organic Chemistry, Jiangxi Science &Technology Normal University, Key Laboratory of Organic Chemistry, Jiangxi Province, Nanchang 330013, China
| | - Qiang Xiao
- Institute of Organic Chemistry, Jiangxi Science &Technology Normal University, Key Laboratory of Organic Chemistry, Jiangxi Province, Nanchang 330013, China
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5
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Cadart T, Gläsel T, Císařová I, Gyepes R, Nečas D, Hapke M, Kotora M. Cyclotrimerization Approach to Symmetric [9]Helical Indenofluorenes: Diverting Cyclization Pathways. Chemistry 2023; 29:e202301491. [PMID: 37306545 PMCID: PMC10946996 DOI: 10.1002/chem.202301491] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2023] [Revised: 06/05/2023] [Accepted: 06/05/2023] [Indexed: 06/13/2023]
Abstract
Catalytic cyclotrimerization routes to symmetrical [9]helical indenofluorene were explored by using different transition-metal complexes and thermal conditions. Depending on the reaction conditions, the cyclotrimerizations were accompanied by dehydro-Diels-Alder reaction giving rise to another type of aromatic compounds. Structures of both symmetrical [9]helical cyclotrimerization product as well as the dehydro-Diels-Alder product were confirmed by single-crystal X-ray diffraction analyses. Limits of enantioselective cyclotrimerization were assessed as well. DFT calculations shed light on the reaction course and the origin of diminished enantioselectivity.
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Affiliation(s)
- Timothée Cadart
- Department of Organic ChemistryFaculty of ScienceCharles University in PragueHlavova 8128 43Praha 2Czech Republic
| | - Tim Gläsel
- Institute for Catalysis (INCA)Johannes Kepler University LinzAltenberger Strasse 69A-4040LinzAustria
| | - Ivana Císařová
- Department of Inorganic ChemistryFaculty of ScienceCharles University in PragueHlavova 8128 43Praha 2Czech Republic
| | - Róbert Gyepes
- Department of Molecular Electrochemistry and CatalysisJ. Heyrovský Institute of Physical Chemistry of the Czech Academy of SciencesDolejškova2155/3, 182 23Praha 8Czech Republic
| | - David Nečas
- Department of Organic ChemistryFaculty of ScienceCharles University in PragueHlavova 8128 43Praha 2Czech Republic
| | - Marko Hapke
- Institute for Catalysis (INCA)Johannes Kepler University LinzAltenberger Strasse 69A-4040LinzAustria
| | - Martin Kotora
- Department of Organic ChemistryFaculty of ScienceCharles University in PragueHlavova 8128 43Praha 2Czech Republic
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6
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Liu Q, Ni Q, Zhou Y, Chen L, Xiang S, Zheng L, Liu Y. P/N-heteroleptic Cu(I)-photosensitizer-catalyzed domino radical relay annulation of 1,6-enynes with aryldiazonium salts. Org Biomol Chem 2023; 21:7960-7967. [PMID: 37750337 DOI: 10.1039/d3ob01177a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/27/2023]
Abstract
A visible-light driven photocatalytic construction of benzo[b]fluorenones from 1,6-enynes and aryldiazonium salts has been achieved via a P/N-heteroleptic Cu(I)-photosensitizer-catalyzed domino radical relay annulation process. Preliminary mechanistic studies revealed that the aryl radicals in situ generated from aryldiazonium salts with the excited state of the Cu(I)-photosensitizer played a dual role of a radical initiator and a radical terminator in the concise construction of the highly fused benzo[b]fluorenone scaffold.
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Affiliation(s)
- Qian Liu
- State Key Laboratory Breeding Base of Green Chemistry-Synthesis Technology, College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, 310014, P. R. China.
| | - Qibo Ni
- State Key Laboratory Breeding Base of Green Chemistry-Synthesis Technology, College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, 310014, P. R. China.
| | - Yan Zhou
- State Key Laboratory Breeding Base of Green Chemistry-Synthesis Technology, College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, 310014, P. R. China.
| | - Lang Chen
- State Key Laboratory Breeding Base of Green Chemistry-Synthesis Technology, College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, 310014, P. R. China.
| | - Siwei Xiang
- State Key Laboratory Breeding Base of Green Chemistry-Synthesis Technology, College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, 310014, P. R. China.
| | - Limeng Zheng
- State Key Laboratory Breeding Base of Green Chemistry-Synthesis Technology, College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, 310014, P. R. China.
| | - Yunkui Liu
- State Key Laboratory Breeding Base of Green Chemistry-Synthesis Technology, College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, 310014, P. R. China.
- Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of Education, Hangzhou Normal University, Hangzhou 311121, P. R. China
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7
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Du S, Jiang S, Yang R, Jin F, Huang H, Tian WF, Zhou ZZ, Song XR, Xiao Q. Direct Synthesis of Benzo[ b]fluorenyl Thiophosphates via Tandem Cyclization of Diynols with (RO) 2P(O)SH. Org Lett 2023. [PMID: 36795512 DOI: 10.1021/acs.orglett.3c00009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/17/2023]
Abstract
A general and metal-free protocol for the construction of benzo[b]fluorenyl thiophosphates was developed through the cascade cyclization of easily prepared diynols and (RO)2P(O)SH, with water as the only byproduct. The novel transformation involved the allenyl thiophosphate as the key intermediate, followed by Schmittel-type cyclization to achieve the desired products. Notably, (RO)2P(O)SH acted not only as a nucleophile but also as an acid-promoter to initiate the reaction.
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Affiliation(s)
- Sha Du
- Institute of Organic Chemistry, Jiangxi Science & Technology Normal University, Key Laboratory of Organic Chemistry, Nanchang 330013, Jiangxi Province, P.R. China
| | - Shimin Jiang
- Institute of Organic Chemistry, Jiangxi Science & Technology Normal University, Key Laboratory of Organic Chemistry, Nanchang 330013, Jiangxi Province, P.R. China
| | - Ruchun Yang
- Institute of Organic Chemistry, Jiangxi Science & Technology Normal University, Key Laboratory of Organic Chemistry, Nanchang 330013, Jiangxi Province, P.R. China
| | - Fengyan Jin
- Institute of Organic Chemistry, Jiangxi Science & Technology Normal University, Key Laboratory of Organic Chemistry, Nanchang 330013, Jiangxi Province, P.R. China
| | - Haiyang Huang
- Institute of Organic Chemistry, Jiangxi Science & Technology Normal University, Key Laboratory of Organic Chemistry, Nanchang 330013, Jiangxi Province, P.R. China
| | - Wan-Fa Tian
- Institute of Organic Chemistry, Jiangxi Science & Technology Normal University, Key Laboratory of Organic Chemistry, Nanchang 330013, Jiangxi Province, P.R. China
| | - Zhao-Zhao Zhou
- College of Chemistry and Food Science, Nanchang Normal University, Nanchang, 330000, P.R. China
| | - Xian-Rong Song
- Institute of Organic Chemistry, Jiangxi Science & Technology Normal University, Key Laboratory of Organic Chemistry, Nanchang 330013, Jiangxi Province, P.R. China
| | - Qiang Xiao
- Institute of Organic Chemistry, Jiangxi Science & Technology Normal University, Key Laboratory of Organic Chemistry, Nanchang 330013, Jiangxi Province, P.R. China
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8
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Zhao X, Yu X, Liu M, Huo Y, Ji S, Li X, Chen Q. Direct Benzylic C-H Functionalization with Fluorenones under Visible-Light Irradiation. J Org Chem 2023; 88:2612-2620. [PMID: 36725672 DOI: 10.1021/acs.joc.2c02766] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
An external photocatalyst-free benzylic C-H functionalization with fluorenones under visible-light irradiation has been achieved. This transformation provides an efficient synthetic approach to 9-benzylated fluorenols in ≤91% yield with 100% atom economy under mild conditions. Spectroscopic studies suggest that a reductive quenching of photoexcited fluorenones with toluene derivatives generates ketyl radicals and benzyl radicals, which undergo a cross-coupling to afford the desired fluorenols.
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Affiliation(s)
- Xi Zhao
- School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou 510006, P. R. China
| | - Xiaofeng Yu
- School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou 510006, P. R. China
| | - Mingjun Liu
- School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou 510006, P. R. China
| | - Yanping Huo
- School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou 510006, P. R. China
| | - Shaomin Ji
- School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou 510006, P. R. China
| | - Xianwei Li
- School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou 510006, P. R. China
| | - Qian Chen
- School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou 510006, P. R. China
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9
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Balasubramani A, Mehta G. One-Pot Synthesis of Functionally Enriched Benzo[ b]fluorenones: An Eco-Friendly Embedment of Diverse 1-Indanones into o-Bis-Ynones. J Org Chem 2023; 88:933-943. [PMID: 36602529 DOI: 10.1021/acs.joc.2c02330] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
An efficient, base-promoted, one-pot, metal-free, open-flask synthesis of diverse, functionally enriched benzo[b]fluoren-11-ones has been discovered, and wide applicability of this exceptionally simple protocol with green flavors has been scoped. This synthesis proceeds via an unanticipated, tandem, double-aldol condensation between in situ-generated 1-indanone dianions and o-bis-ynones to furnish benzo[b]fluoren-11-ones harboring as many as six variegated substituents on their tetracyclic framework. This methodology has also been amplified to access heterocyclic analogues 2- and 4-azabenzo[b]fluorenones of benzo[b]fluoren-11-ones and extended to mixed linear-angular annulated pentacyclic dibenzo[a,h]fluoren-13-one.
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Affiliation(s)
| | - Goverdhan Mehta
- School of Chemistry, University of Hyderabad, Hyderabad 500 046, India
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10
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Cp∗Rh/Ag catalyzed C–H activation/cyclization sequences of NH-sulfoximines to fused aza-polyheterocycles under gentle conditions. GREEN SYNTHESIS AND CATALYSIS 2022. [DOI: 10.1016/j.gresc.2022.06.002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
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11
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Ding L, Deng YH, Sun TY, Jiang Y, Xia XF. Merging Hydrogen Atom Transfer and Halogen Atom Transfer for Iodide-Catalyzed Radical Reductive Cyclization of 1,6-Enynes. Org Lett 2022; 24:3113-3117. [PMID: 35475629 DOI: 10.1021/acs.orglett.2c00552] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Described herein is the development of a metal-free iodide-catalyzed radical reductive cyclization of 1,6-enynes. A strategy involving in situ iodination/radical cyclization/silyl radical-mediated halogen atom transfer/hydrogen atom transfer for the synthesis of functionalized pyrrolidines has been proposed. Using this halogen-atom abstraction protocol, 1,6-enynes with various vinyl halides including inert fluorides, chlorides, and reactive bromides could be transformed into substituted pyrroles via a multistep radical isomerization process.
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Affiliation(s)
- Linglong Ding
- Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi, Jiangsu 214122, China
| | - Yi-Hui Deng
- The Key Laboratory of Chemical Genomics, Lab of Computational Chemistry and Drug Design, State Key Laboratory of Chemical Oncogenomics, Peking University Shenzhen Graduate School, Shenzhen 518055, China
| | - Tian-Yu Sun
- Shenzhen Bay Laboratory, Shenzhen 518132, China
| | - Yuqin Jiang
- Henan Engineering Research Centre of Chiral Hydroxyl Pharmaceutical, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang 453007, China
| | - Xiao-Feng Xia
- Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi, Jiangsu 214122, China
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12
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I2/PhI(OAc)2-assisted oxidative C-H amination protocols toward metal-free pragmatic synthesis of pyrrolo[2,3-b]indoles. CHINESE CHEM LETT 2022. [DOI: 10.1016/j.cclet.2022.05.083] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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13
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Karunakar GV, Raju CE, Sreenivasulu G, Bharath Kumar P, Kadiyala V, Sridhar B. Cationic gold-catalyzed intramolecular cyclization of substituted 1,5-diynes to access indenone derivatives. Chem Asian J 2022; 17:e202101408. [PMID: 35243791 DOI: 10.1002/asia.202101408] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2021] [Revised: 03/02/2022] [Indexed: 11/05/2022]
Abstract
An efficient intramolecular cyclization reaction was developed to achive indenone derivatives. The substituted 1,5-diyenes were converted to the cooresponding indenones via gold-catalyzed organic transformation and moderate to excellent yields of the title molecules were obatined via formation of two C=O and one C-C bonds under mild reaction condtions in one-pot.
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Affiliation(s)
- Galla V Karunakar
- CSIR-IICT, Crop Protection Chemicals Division, Uppal Road, Tarnaka, 500007, Hyderabad, INDIA
| | - Chittala Emmaniel Raju
- Indian Institute of Chemical Technology CSIR: Indian Institute of Chemical Technology, Chemistry, INDIA
| | - Gottam Sreenivasulu
- Indian Institute of Chemical Technology CSIR: Indian Institute of Chemical Technology, Chemistry, INDIA
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14
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Jiang S, Ma H, Yang R, Song XR, Xiao Q. Recent advances in the cascade reactions of enynols/diynols for the synthesis of carbo- and heterocycles. Org Chem Front 2022. [DOI: 10.1039/d2qo01154a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
This review summaries a view of the advances in the cascade reactions of enynols/diynols for the construction of carbo- and heterocycles.
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Affiliation(s)
- Shimin Jiang
- Institute of Organic Chemistry, Jiangxi Science & Technology Normal University, Key Laboratory of Organic Chemistry, Jiangxi Province, Nanchang 330013, China
| | - Haojie Ma
- Key Laboratory of New Energy & New Functional Materials, College of Chemistry and Chemical Engineering, Yan'an University, Yan'an, Shaanxi, 716000, P. R. China
| | - Ruchun Yang
- Institute of Organic Chemistry, Jiangxi Science & Technology Normal University, Key Laboratory of Organic Chemistry, Jiangxi Province, Nanchang 330013, China
| | - Xian-Rong Song
- Institute of Organic Chemistry, Jiangxi Science & Technology Normal University, Key Laboratory of Organic Chemistry, Jiangxi Province, Nanchang 330013, China
| | - Qiang Xiao
- Institute of Organic Chemistry, Jiangxi Science & Technology Normal University, Key Laboratory of Organic Chemistry, Jiangxi Province, Nanchang 330013, China
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15
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Caivano I, Bingel S, Císařová I, Nečas D, Kotora M. Catalytic approach to unsymmetrical [7]-helical indenofluorenes: Cyclotrimerization vs. dehydro-Diels-Alder reaction pathways. Catal Today 2021. [DOI: 10.1016/j.cattod.2021.12.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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16
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Large B, Prim D. On the Shape and Synthesis of Extended Fluorenones: Recent Advances and Upcoming Challenges. European J Org Chem 2021. [DOI: 10.1002/ejoc.202101032] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Benjamin Large
- University of York Department of Chemistry YO10 5DD York United Kingdom
| | - Damien Prim
- ILV Université Paris-Saclay, UVSQ, CNRS 78035 Versailles France
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17
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Wang Z, Wei L, Cheng Z, Xia J, Chen Z. Pd-catalyzed halocyclizations of unactivated 1,6-diynes through a formal anti-carbopalladation/bromide radical cascade. CHINESE CHEM LETT 2021. [DOI: 10.1016/j.cclet.2021.03.030] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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18
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Gao C, Xu J, Zhu S, Jian K, Xuan Q, Song Q. Preparation of anthranils via chemoselective oxidative radical cyclization of 3-(2-azidoaryl) substituted propargyl alcohols. Chem Commun (Camb) 2021; 57:2037-2040. [PMID: 33507184 DOI: 10.1039/d0cc07919g] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
In the presence of K2S2O8 and HOAc, 3-(2-azidoaryl) substituted propargyl alcohols can go through chemoselective oxidative radical cyclizations to give a pool of anthranils based on Meyer-Schuster rearrangement. It's proposed that the cyclizations were triggered exclusively by the direct attack of oxygen radicals on the azides. The weak N-O bonds in anthranils could be easily cleaved in the presence of transition metal catalysts and went through aminations with 2-oxo-2-phenylacetic acid and iodobenzene.
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Affiliation(s)
- Chao Gao
- Institute of Next Generation Matter Transformation, College of Chemical Engineering and College of Material Sciences Engineering at Huaqiao University, 668 Jimei Boulevard, Xiamen, 361021, Fujian, China.
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19
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Justaud F, Hachem A, Grée R. Recent Developments in the Meyer‐Schuster Rearrangement. European J Org Chem 2021. [DOI: 10.1002/ejoc.202001494] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Affiliation(s)
- Frédéric Justaud
- Univ Rennes CNRS (Institut for Chemical Sciences in Rennes), UMR 6226 35000 Rennes France
| | - Ali Hachem
- Lebanese University Faculty of Sciences (I) Laboratory for Medidinal Chemistry and Natural Products and PRASE-EDST Hadath Lebanon
| | - René Grée
- Univ Rennes CNRS (Institut for Chemical Sciences in Rennes), UMR 6226 35000 Rennes France
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20
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Mandal M, Sakthivel S, Balamurugan R. Brønsted/Lewis Acid-Promoted Site-Selective Intramolecular Cycloisomerizations of Aryl-Fused 1,6-Diyn-3-ones for Diversity-Oriented Synthesis of Benzo-Fused Fluorenes and Fluorenones and Naphthyl Ketones. J Org Chem 2020; 86:333-351. [PMID: 33253563 DOI: 10.1021/acs.joc.0c02131] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Herein, a facile diversity-oriented approach to access functionalized benzo[a]fluorenes, benzo[b]fluorenones, and naphthyl ketones has been demonstrated via site-selective intramolecular cyclization of aryl-fused 1,6-diyn-3-ones. Synthesis of benzo[a]fluorenes and naphthyl ketones has been achieved selectively using TfOH and AgBF4, respectively, via in situ-formed acetals. Aryl-fused 1,6-diyn-3-ones undergo triflic acid-mediated intramolecular cyclization, leading to benzo[b]fluorenone derivatives via a radical intermediate as supported by EPR studies. Kinetic studies of these transformations have also been performed by UV-visible spectroscopic analysis to shed light on the reaction profile.
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Affiliation(s)
- Mou Mandal
- School of Chemistry, University of Hyderabad, Hyderabad 500046, India
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21
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Yaragorla S, Rajesh P. In Situ Generation of Allenes and their Application to One‐Pot Assembly of Functionalized Fluoreno[3,2‐
b
]furans by Calcium‐Catalyzed, Regioselective, 3‐Component Reactions. European J Org Chem 2020. [DOI: 10.1002/ejoc.202001310] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Srinivasarao Yaragorla
- School of Chemistry, Gurbaksh Building, W‐16, 17 University of Hyderabad P.O. Central University Gachibowli Hyderabad 5000046 Telangana State India
| | - Pallava Rajesh
- School of Chemistry, Gurbaksh Building, W‐16, 17 University of Hyderabad P.O. Central University Gachibowli Hyderabad 5000046 Telangana State India
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22
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Manick AD, Salgues B, Parrain JL, Zaborova E, Fages F, Amatore M, Commeiras L. Access to Fluorenones Using Benzocyclopentynone Surrogate as Partner for the [2 + 2 + 2] Cycloaddition Reaction. Org Lett 2020; 22:1894-1898. [PMID: 32073278 DOI: 10.1021/acs.orglett.0c00235] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
A convenient and versatile procedure for the straightforward synthesis of substituted fluorenones as valuable scaffolds is described under rhodium catalysis. The present [2 + 2 + 2] cycloaddition reaction of diynes with 3-acetoxy or-3-alkoxyindenones as surrogates of the highly reactive benzocyclopentynone 2π partner allows the preparation of various fluorenone-type derivatives in good yields and provides an additional and tunable process for the generation of more challenging molecules with application in pharmaceutical, polymer, and material sciences.
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Affiliation(s)
| | - Bruno Salgues
- Aix Marseille Univ, CNRS, CINaM, UMR 7325, Marseille 13284, France
| | - Jean-Luc Parrain
- Aix Marseille Univ, CNRS, Centrale Marseille, iSm2, Marseille 13397, France
| | - Elena Zaborova
- Aix Marseille Univ, CNRS, CINaM, UMR 7325, Marseille 13284, France
| | - Frédéric Fages
- Aix Marseille Univ, CNRS, CINaM, UMR 7325, Marseille 13284, France
| | - Muriel Amatore
- Aix Marseille Univ, CNRS, Centrale Marseille, iSm2, Marseille 13397, France
| | - Laurent Commeiras
- Aix Marseille Univ, CNRS, Centrale Marseille, iSm2, Marseille 13397, France
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23
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Affiliation(s)
- Hongwei Qian
- Department of ChemistryLishui University 1 Xueyuan Road Lishui City Zhejiang Province 323000 People's Republic of China
| | - Dayun Huang
- Department of ChemistryLishui University 1 Xueyuan Road Lishui City Zhejiang Province 323000 People's Republic of China
| | - Yicheng Bi
- Qingdao University of Science & TechnologySifang Campus 53 Zhengzhou Road Qingdao Shandong 266042 People's Republic of China
| | - Guobing Yan
- Department of ChemistryLishui University 1 Xueyuan Road Lishui City Zhejiang Province 323000 People's Republic of China
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24
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Yan B, Fu Y, Zhu H, Chen Z. Synthesis of Divergent Benzo[b]fluorenones through Cycloaromatization Reactions of 1,5-Enynols and 1,5-Diynols. J Org Chem 2019; 84:4246-4262. [DOI: 10.1021/acs.joc.9b00231] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
| | | | | | - Zhiyuan Chen
- Key Laboratory of Functional Small Organic Molecules, Ministry of Education, and College of Chemistry & Chemical Engineering, Jiangxi Normal University, Nanchang, Jiangxi 330022, China
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25
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Tan J, Wang Z, Yuan J, Peng Y, Chen Z. Iron
III
‐catalyzed Chemoselective Cycloaromatization Reactions for the synthesis of 5‐Brominated Benzo[
b
]fluorenones. Adv Synth Catal 2019. [DOI: 10.1002/adsc.201801551] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Jie Tan
- Key Laboratory of Functional Small Organic Molecules, Ministry of Education, and College of Chemistry & Chemical EngineeringJiangxi Normal University, Nanchang Jiangxi 330022 People's Republic of China
| | - Zhihua Wang
- Key Laboratory of Functional Small Organic Molecules, Ministry of Education, and College of Chemistry & Chemical EngineeringJiangxi Normal University, Nanchang Jiangxi 330022 People's Republic of China
| | - Jianjun Yuan
- Key Laboratory of Functional Small Organic Molecules, Ministry of Education, and College of Chemistry & Chemical EngineeringJiangxi Normal University, Nanchang Jiangxi 330022 People's Republic of China
| | - Yiyuan Peng
- Key Laboratory of Functional Small Organic Molecules, Ministry of Education, and College of Chemistry & Chemical EngineeringJiangxi Normal University, Nanchang Jiangxi 330022 People's Republic of China
| | - Zhiyuan Chen
- Key Laboratory of Functional Small Organic Molecules, Ministry of Education, and College of Chemistry & Chemical EngineeringJiangxi Normal University, Nanchang Jiangxi 330022 People's Republic of China
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26
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Liu J, Chen X, Shen X, Wang Y, Wang X, Bi X. Silver‐Catalyzed Sequential Cascade Reaction of Isocyanides with 1‐(2‐Ethynyl‐phenyl)‐prop‐2‐yn‐1‐ol: Access to Benzo[
b
]fluorenes and Benzofuran‐Pyrroles. Adv Synth Catal 2019. [DOI: 10.1002/adsc.201801344] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Affiliation(s)
- Jian‐Quan Liu
- School of Chemistry and Materials Science, Jiangsu Key Laboratory of Green Synthesis for Functional MaterialsJiangsu Normal University, Xuzhou Jiangsu 221116 People's Republic of China
| | - Xinyi Chen
- School of Chemistry and Materials Science, Jiangsu Key Laboratory of Green Synthesis for Functional MaterialsJiangsu Normal University, Xuzhou Jiangsu 221116 People's Republic of China
| | - Xuanyu Shen
- School of Chemistry and Materials Science, Jiangsu Key Laboratory of Green Synthesis for Functional MaterialsJiangsu Normal University, Xuzhou Jiangsu 221116 People's Republic of China
| | - Yihan Wang
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, Department of ChemistryNortheast Normal University Changchun 130024 People's Republic of China
| | - Xiang‐Shan Wang
- School of Chemistry and Materials Science, Jiangsu Key Laboratory of Green Synthesis for Functional MaterialsJiangsu Normal University, Xuzhou Jiangsu 221116 People's Republic of China
| | - Xihe Bi
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, Department of ChemistryNortheast Normal University Changchun 130024 People's Republic of China
- State Key Laboratory of Elemento-Organic ChemistryNankai University Tianjin 300071 People's Republic of China
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27
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Yaragorla S, Rajesh P, Pareek A, Kumar A. Ca(II)-Mediated Regioselective One-pot Sequential Annulation of Acyclic compounds to Polycyclic Fluorenopyrans. Adv Synth Catal 2018. [DOI: 10.1002/adsc.201801030] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Affiliation(s)
- Srinivasarao Yaragorla
- School of Chemistry; University of Hyderabad; Prof. C. R. Rao Road, Gachibowli, Hyderabad 500046 India
| | - P. Rajesh
- School of Chemistry; University of Hyderabad; Prof. C. R. Rao Road, Gachibowli, Hyderabad 500046 India
| | - Abhishek Pareek
- School of Chemistry; University of Hyderabad; Prof. C. R. Rao Road, Gachibowli, Hyderabad 500046 India
| | - Ankit Kumar
- School of Chemistry; University of Hyderabad; Prof. C. R. Rao Road, Gachibowli, Hyderabad 500046 India
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28
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Maity P, Mukhopadhyay C. Resorcinarene supramolecular organocatalyst for functionalized 1-tetralone synthesis in aqueous medium. Tetrahedron Lett 2018. [DOI: 10.1016/j.tetlet.2018.09.037] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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29
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Chen Z, Han C, Fan C, Liu G, Pu S. Copper-Catalyzed Diversity-Oriented Synthesis (DOS) of 4-Amino-2 H-chromen-2-imines: Application of Kemp Elimination toward O-Heterocycles. ACS OMEGA 2018; 3:8160-8168. [PMID: 31458953 PMCID: PMC6644361 DOI: 10.1021/acsomega.8b01179] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/30/2018] [Accepted: 07/05/2018] [Indexed: 06/10/2023]
Abstract
We report herein a copper-catalyzed sequential multicomponent reaction of benzo[d]isoxazoles with terminal alkynes and sulfonyl azides, which produced divergent 4-amino-2H-chromen-2-imines with excellent chemical selectivity. The reaction tolerated a broad range of functional groups, and released only N2 as the sole byproduct. The sulfonyl imino group could be removed to give biologically active free 4-amino-2H-chromenone in good yield.
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Affiliation(s)
- Zhiyuan Chen
- Jiangxi
Key Laboratory of Organic Chemistry, Jiangxi
Science and Technology Normal University, 605 Fenglin Road, Nanchang, Jiangxi 330013, P. R. China
- Key
Laboratory of Functional Small Organic Molecules, Ministry of Education,
and College of Chemistry & Chemical Engineering, Jiangxi Normal University, 99 Ziyang Road, Nanchang, Jiangxi 330022, P. R. China
| | - Cuifen Han
- Key
Laboratory of Functional Small Organic Molecules, Ministry of Education,
and College of Chemistry & Chemical Engineering, Jiangxi Normal University, 99 Ziyang Road, Nanchang, Jiangxi 330022, P. R. China
| | - Congbin Fan
- Jiangxi
Key Laboratory of Organic Chemistry, Jiangxi
Science and Technology Normal University, 605 Fenglin Road, Nanchang, Jiangxi 330013, P. R. China
| | - Gang Liu
- Jiangxi
Key Laboratory of Organic Chemistry, Jiangxi
Science and Technology Normal University, 605 Fenglin Road, Nanchang, Jiangxi 330013, P. R. China
| | - Shouzhi Pu
- Jiangxi
Key Laboratory of Organic Chemistry, Jiangxi
Science and Technology Normal University, 605 Fenglin Road, Nanchang, Jiangxi 330013, P. R. China
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30
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Jadhav AS, Pankhade YA, Hazra R, Anand RV. 1,6-Hydroolefination and Cascade Cyclization of p-Quinone Methides with Styrenes: Total Synthesis of (±)-Isopaucifloral F. J Org Chem 2018; 83:10107-10119. [DOI: 10.1021/acs.joc.8b01401] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Affiliation(s)
- Abhijeet S. Jadhav
- Department of Chemical Sciences, Indian Institute of Science Education and Research (IISER) Mohali, Sector 81, Knowledge City, S. A. S. Nagar, Manauli (PO), Punjab − 140306, India
| | - Yogesh A. Pankhade
- Department of Chemical Sciences, Indian Institute of Science Education and Research (IISER) Mohali, Sector 81, Knowledge City, S. A. S. Nagar, Manauli (PO), Punjab − 140306, India
| | - Raju Hazra
- Department of Chemical Sciences, Indian Institute of Science Education and Research (IISER) Mohali, Sector 81, Knowledge City, S. A. S. Nagar, Manauli (PO), Punjab − 140306, India
| | - Ramasamy Vijaya Anand
- Department of Chemical Sciences, Indian Institute of Science Education and Research (IISER) Mohali, Sector 81, Knowledge City, S. A. S. Nagar, Manauli (PO), Punjab − 140306, India
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31
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Roy D, Tharra P, Baire B. Intercepted Meyer-Schuster Rearrangements in Organic Synthesis. ASIAN J ORG CHEM 2018. [DOI: 10.1002/ajoc.201800089] [Citation(s) in RCA: 53] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Debayan Roy
- Department of Chemistry; Indian Institute of Technology Madras; Chennai 600036 Tamil Nadu India
| | - Prabhakararao Tharra
- Department of Chemistry; Indian Institute of Technology Madras; Chennai 600036 Tamil Nadu India
| | - Beeraiah Baire
- Department of Chemistry; Indian Institute of Technology Madras; Chennai 600036 Tamil Nadu India
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32
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Zhou H, Chen W, Chen Z. Pd/Norbornene Collaborative Catalysis on the Divergent Preparation of Heterocyclic Sulfoximine Frameworks. Org Lett 2018; 20:2590-2594. [PMID: 29664649 DOI: 10.1021/acs.orglett.8b00776] [Citation(s) in RCA: 47] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Pd/Norbornene cocatalyzed tandem C-H activation/annulation reactions of free NH-sulfoximines with aryl iodides to produce diverse polyheterocyclic sulfoximines in highly chemoselective models are reported. The reaction tolerated a broad range of functional groups under external oxidant-free conditions. The preliminary mechanistic studies using density functional theory (DFT) calculations highlighted the key role of a PdIV intermediate.
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Affiliation(s)
- Hao Zhou
- Key Laboratory of Functional Small Organic Molecules, Ministry of Education, and College of Chemistry & Chemical Engineering , Jiangxi Normal University , 99 Ziyang Road , Nanchang , Jiangxi 330022 , P. R. China
| | - Weihao Chen
- Key Laboratory of Functional Small Organic Molecules, Ministry of Education, and College of Chemistry & Chemical Engineering , Jiangxi Normal University , 99 Ziyang Road , Nanchang , Jiangxi 330022 , P. R. China
| | - Zhiyuan Chen
- Key Laboratory of Functional Small Organic Molecules, Ministry of Education, and College of Chemistry & Chemical Engineering , Jiangxi Normal University , 99 Ziyang Road , Nanchang , Jiangxi 330022 , P. R. China
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33
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Tan J, Tong Y, Chen Z. Alkali-Metal Promoted Chemo- and Regioselective Cycloisomerization Reactions to (Z
)-3-Alkylideneisoindolin-1-ones: Unusual Positive Role of H2
O. ChemistrySelect 2018. [DOI: 10.1002/slct.201800666] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Jie Tan
- Key Laboratory of Functional Small Organic Molecules; Ministry of Education; College of Chemistry & Chemical Engineering; Jiangxi Normal University; 99 Ziyang Road Nanchang, Jiangxi 330022 P. R. China
| | - Yao Tong
- Key Laboratory of Functional Small Organic Molecules; Ministry of Education; College of Chemistry & Chemical Engineering; Jiangxi Normal University; 99 Ziyang Road Nanchang, Jiangxi 330022 P. R. China
- College of Tuition-free Normal Students; Jiangxi Normal University; 99 Ziyang Road Nanchang, Jiangxi 330022 P. R. China
| | - Zhiyuan Chen
- Key Laboratory of Functional Small Organic Molecules; Ministry of Education; College of Chemistry & Chemical Engineering; Jiangxi Normal University; 99 Ziyang Road Nanchang, Jiangxi 330022 P. R. China
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34
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Mandal M, Balamurugan R. Triflic acid-Mediated Expedient Synthesis of Benzo[a
]fluorenes and Fluorescent Benzo[a
]fluorenones. Adv Synth Catal 2018. [DOI: 10.1002/adsc.201701516] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Mou Mandal
- School of Chemistry; University of Hyderabad; Gachibowli Hyderabad- 500046 India
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35
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Challa C, Ravindran J, Konai MM, Varughese S, Jacob J, Kumar BSD, Haldar J, Lankalapalli RS. Expedient Synthesis of Indolo[2,3- b]quinolines, Chromeno[2,3- b]indoles, and 3-Alkenyl-oxindoles from 3,3'-Diindolylmethanes and Evaluation of Their Antibiotic Activity against Methicillin-Resistant Staphylococcus aureus. ACS OMEGA 2017; 2:5187-5195. [PMID: 30023741 PMCID: PMC6044809 DOI: 10.1021/acsomega.7b00840] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/22/2017] [Accepted: 08/16/2017] [Indexed: 05/09/2023]
Abstract
Easily accessible 3,3'-diindolylmethanes (DIMs) were utilized to generate a focused library of indolo[2,3-b]quinolines (2), chromeno[2,3-b]indoles (3), and 3-alkenyl-oxindoles (4) under 2,3-Dichloro-5,6-dicyano-1,4-benzoquinone (DDQ)-mediated oxidative conditions. DIMs with ortho-NHTosyl (NHTs) phenyl group afforded indolo[2,3-b]quinolines (2), whereas DIMs with ortho-hydroxy phenyl groups yielded chromeno[2,3-b]indoles (3) and 3-alkenyl-oxindoles (4). The mild conditions and excellent yields of the products make this method a good choice to access a diverse library of bioactive molecules from a common starting material. Two optimized compounds 2a and 2n displayed excellent activity against clinical isolates of methicillin-resistant Staphylococcus aureus (MRSA). Compound 2a showed the minimum inhibitory concentration values in the concentration between 1 and 4 μg/mL, whereas compound 2n revealed the values of 1-2 μg/mL. Furthermore, both the compounds were highly bactericidal and capable to kill the MRSA completely within 360 min. Collectively, the results suggested that both compounds 2a and 2n possess enormous potential to be developed as anti-MRSA agents.
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Affiliation(s)
- Chandrasekhar Challa
- Chemical
Sciences and Technology Division and Academy of Scientific
and Innovative Research (AcSIR) and Agro-Processing and Technology Division, CSIR-National Institute for Interdisciplinary Science
and Technology (CSIR-NIIST), Thiruvananthapuram 695019, Kerala, India
| | - Jaice Ravindran
- Chemical
Sciences and Technology Division and Academy of Scientific
and Innovative Research (AcSIR) and Agro-Processing and Technology Division, CSIR-National Institute for Interdisciplinary Science
and Technology (CSIR-NIIST), Thiruvananthapuram 695019, Kerala, India
| | - Mohini Mohan Konai
- Antimicrobial
Research Laboratory, New Chemistry Unit, Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur, Bengaluru 560064, Karnataka, India
| | - Sunil Varughese
- Chemical
Sciences and Technology Division and Academy of Scientific
and Innovative Research (AcSIR) and Agro-Processing and Technology Division, CSIR-National Institute for Interdisciplinary Science
and Technology (CSIR-NIIST), Thiruvananthapuram 695019, Kerala, India
| | - Jubi Jacob
- Chemical
Sciences and Technology Division and Academy of Scientific
and Innovative Research (AcSIR) and Agro-Processing and Technology Division, CSIR-National Institute for Interdisciplinary Science
and Technology (CSIR-NIIST), Thiruvananthapuram 695019, Kerala, India
| | - B. S. Dileep Kumar
- Chemical
Sciences and Technology Division and Academy of Scientific
and Innovative Research (AcSIR) and Agro-Processing and Technology Division, CSIR-National Institute for Interdisciplinary Science
and Technology (CSIR-NIIST), Thiruvananthapuram 695019, Kerala, India
| | - Jayanta Haldar
- Antimicrobial
Research Laboratory, New Chemistry Unit, Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur, Bengaluru 560064, Karnataka, India
| | - Ravi S. Lankalapalli
- Chemical
Sciences and Technology Division and Academy of Scientific
and Innovative Research (AcSIR) and Agro-Processing and Technology Division, CSIR-National Institute for Interdisciplinary Science
and Technology (CSIR-NIIST), Thiruvananthapuram 695019, Kerala, India
- E-mail:
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36
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Han Y, Li X, Sun Z, Zhu X, Li M, Song X, Liang Y. Lewis Acid‐Catalyzed [4+2] Annulation between Propargylic Alcohols with Benzo[
d
]isoxazoles. Adv Synth Catal 2017. [DOI: 10.1002/adsc.201700495] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Ya‐Ping Han
- State Key Laboratory of Applied Organic Chemistry Lanzhou University Lanzhou 730000 People's Republic of China
| | - Xue‐Song Li
- State Key Laboratory of Applied Organic Chemistry Lanzhou University Lanzhou 730000 People's Republic of China
| | - Zhou Sun
- State Key Laboratory of Applied Organic Chemistry Lanzhou University Lanzhou 730000 People's Republic of China
| | - Xin‐Yu Zhu
- State Key Laboratory of Applied Organic Chemistry Lanzhou University Lanzhou 730000 People's Republic of China
| | - Ming Li
- State Key Laboratory of Applied Organic Chemistry Lanzhou University Lanzhou 730000 People's Republic of China
| | - Xian‐Rong Song
- Jiangxi Key Laboratory of Organic Chemistry Jiangxi Science Technology Normal University Nanchang 330013 People's Republic of China
| | - Yong‐Min Liang
- State Key Laboratory of Applied Organic Chemistry Lanzhou University Lanzhou 730000 People's Republic of China
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37
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Laha JK, Jethava KP, Patel S, Patel KV. Intramolecular Acylation of Unactivated Pyridines or Arenes via Multiple C–H Functionalizations: Synthesis of All Four Azafluorenones and Fluorenones. J Org Chem 2016; 82:76-85. [DOI: 10.1021/acs.joc.6b02065] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Affiliation(s)
- Joydev K. Laha
- Department of Pharmaceutical
Technology (Process Chemistry), National Institute of Pharmaceutical Education and Research Sahibzada Ajit Singh Nagar, Punjab 160062, India
| | - Krupal P. Jethava
- Department of Pharmaceutical
Technology (Process Chemistry), National Institute of Pharmaceutical Education and Research Sahibzada Ajit Singh Nagar, Punjab 160062, India
| | - Sagarkumar Patel
- Department of Pharmaceutical
Technology (Process Chemistry), National Institute of Pharmaceutical Education and Research Sahibzada Ajit Singh Nagar, Punjab 160062, India
| | - Ketul V. Patel
- Department of Pharmaceutical
Technology (Process Chemistry), National Institute of Pharmaceutical Education and Research Sahibzada Ajit Singh Nagar, Punjab 160062, India
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38
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Deshidi R, Devari S, Rizvi M, Shah BA. Regio-Selective Phosphation and Phosphonation of 9-Fluorenones. ChemistrySelect 2016. [DOI: 10.1002/slct.201601359] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Ramesh Deshidi
- Academy of Scientific and Innovative Research (AcSIR), Natural Product Microbes; CSIR-Indian Institute of Integrative Medicine Institution; Canal Road Jammu -Tawi India 180001
| | - Shekaraiah Devari
- Academy of Scientific and Innovative Research (AcSIR), Natural Product Microbes; CSIR-Indian Institute of Integrative Medicine Institution; Canal Road Jammu -Tawi India 180001
| | - Masood Rizvi
- Department of Chemistry; University of Kashmir; Srinagar India
| | - Bhahwal Ali Shah
- Academy of Scientific and Innovative Research (AcSIR), Natural Product Microbes; CSIR-Indian Institute of Integrative Medicine Institution; Canal Road Jammu -Tawi India 180001
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39
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Zhang J, Zhang H, Shi D, Jin H, Liu Y. Facile and Diverse Synthesis of Benzo[b]fluorenone Derivatives through a Copper/Selectfluor-Catalyzed Tandem Annulation of 1,6-Enynes. European J Org Chem 2016. [DOI: 10.1002/ejoc.201600982] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Jian Zhang
- State Key Laboratory Breeding Base of Green Chemistry-Synthesis Technology; Zhejiang University of Technology; 310014 Hangzhou P. R. China
| | - Haifeng Zhang
- State Key Laboratory Breeding Base of Green Chemistry-Synthesis Technology; Zhejiang University of Technology; 310014 Hangzhou P. R. China
| | - Dongdong Shi
- State Key Laboratory Breeding Base of Green Chemistry-Synthesis Technology; Zhejiang University of Technology; 310014 Hangzhou P. R. China
| | - Hongwei Jin
- State Key Laboratory Breeding Base of Green Chemistry-Synthesis Technology; Zhejiang University of Technology; 310014 Hangzhou P. R. China
| | - Yunkui Liu
- State Key Laboratory Breeding Base of Green Chemistry-Synthesis Technology; Zhejiang University of Technology; 310014 Hangzhou P. R. China
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Wang X, Liu M, Chen Z. Brønsted-acid catalyzed cascade annulations toward the fused pyranoquinoline derivatives. Tetrahedron 2016. [DOI: 10.1016/j.tet.2016.06.004] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Tejedor D, Prieto-Ramírez MC, Ingold M, Chicón M, García-Tellado F. Synthesis of Polysubstituted Benzoic Esters from 1,2-Dihydropyridines and Its Application to the Synthesis of Fluorenones. Org Lett 2016; 18:2770-3. [DOI: 10.1021/acs.orglett.6b01260] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Affiliation(s)
- David Tejedor
- Departamento de Química
Biológica y Biotecnología, Instituto de Productos Naturales y Agrobiología, Consejo Superior de Investigaciones Científicas, Avenida Astrofísico Francisco Sánchez
3, 38206 La Laguna, Tenerife, Spain
| | - Mary Cruz Prieto-Ramírez
- Departamento de Química
Biológica y Biotecnología, Instituto de Productos Naturales y Agrobiología, Consejo Superior de Investigaciones Científicas, Avenida Astrofísico Francisco Sánchez
3, 38206 La Laguna, Tenerife, Spain
| | - Mariana Ingold
- Departamento de Química
Biológica y Biotecnología, Instituto de Productos Naturales y Agrobiología, Consejo Superior de Investigaciones Científicas, Avenida Astrofísico Francisco Sánchez
3, 38206 La Laguna, Tenerife, Spain
| | - Margot Chicón
- Departamento de Química
Biológica y Biotecnología, Instituto de Productos Naturales y Agrobiología, Consejo Superior de Investigaciones Científicas, Avenida Astrofísico Francisco Sánchez
3, 38206 La Laguna, Tenerife, Spain
| | - Fernando García-Tellado
- Departamento de Química
Biológica y Biotecnología, Instituto de Productos Naturales y Agrobiología, Consejo Superior de Investigaciones Científicas, Avenida Astrofísico Francisco Sánchez
3, 38206 La Laguna, Tenerife, Spain
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Sharma S, Sultan S, Devari S, Shah BA. Radical–radical cross coupling reactions of photo-excited fluorenones. Org Biomol Chem 2016; 14:9645-9649. [DOI: 10.1039/c6ob01879c] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Radical–radical cross coupling reactions of photoexcited 9-fluorenones have been accomplished for the first time, leading to the synthesis of 9-alkyl, pyrollidinyl and spiro-THF derivatives of 9-fluorenones.
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Affiliation(s)
- Simmi Sharma
- Academy of Scientific and Innovative Research
- Natural Product Microbes
- CSIR-Indian Institute of Integrative Medicine
- Jammu-Tawi
- India
| | - Shaista Sultan
- Academy of Scientific and Innovative Research
- Natural Product Microbes
- CSIR-Indian Institute of Integrative Medicine
- Jammu-Tawi
- India
| | - Shekaraiah Devari
- Academy of Scientific and Innovative Research
- Natural Product Microbes
- CSIR-Indian Institute of Integrative Medicine
- Jammu-Tawi
- India
| | - Bhahwal Ali Shah
- Academy of Scientific and Innovative Research
- Natural Product Microbes
- CSIR-Indian Institute of Integrative Medicine
- Jammu-Tawi
- India
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