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do Carmo Pinheiro R, Souza Marques L, Ten Kathen Jung J, Nogueira CW, Zeni G. Recent Progress in Synthetic and Biological Application of Diorganyl Diselenides. CHEM REC 2024:e202400044. [PMID: 38976862 DOI: 10.1002/tcr.202400044] [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: 03/01/2024] [Revised: 05/08/2024] [Indexed: 07/10/2024]
Abstract
Diorganyl diselenides have emerged as privileged structures because they are easy to prepare, have distinct reactivity, and have broad biological activity. They have also been used in the synthesis of natural products as an electrophile in the organoselenylation of aromatic systems and peptides, reductions of alkenes, and nucleophilic substitution. This review summarizes the advancements in methods for the transformations promoted by diorganyl diselenides in the main functions of organic chemistry. Parallel, it will also describe the main findings on pharmacology and toxicology of diorganyl diselenides, emphasizing anti-inflammatory, hypoglycemic, chemotherapeutic, and antimicrobial activities. Therefore, an examination detailing the reactivity and biological characteristics of diorganyl diselenides provides valuable insights for academic researchers and industrial professionals.
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Affiliation(s)
- Roberto do Carmo Pinheiro
- Laboratório de Síntese, Reatividade, Avaliação Farmacológica e Toxicológica de Organocalcogênios CCNE, UFSM, Santa Maria, Rio Grande do Sul, Brazil, 97105-900
| | - Luiza Souza Marques
- Laboratório de Síntese, Reatividade, Avaliação Farmacológica e Toxicológica de Organocalcogênios CCNE, UFSM, Santa Maria, Rio Grande do Sul, Brazil, 97105-900
| | - Juliano Ten Kathen Jung
- Laboratório de Síntese, Reatividade, Avaliação Farmacológica e Toxicológica de Organocalcogênios CCNE, UFSM, Santa Maria, Rio Grande do Sul, Brazil, 97105-900
| | - Cristina Wayne Nogueira
- Laboratório de Síntese, Reatividade, Avaliação Farmacológica e Toxicológica de Organocalcogênios CCNE, UFSM, Santa Maria, Rio Grande do Sul, Brazil, 97105-900
| | - Gilson Zeni
- Laboratório de Síntese, Reatividade, Avaliação Farmacológica e Toxicológica de Organocalcogênios CCNE, UFSM, Santa Maria, Rio Grande do Sul, Brazil, 97105-900
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2
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Jaiswal G, Pan SC. BBr 3-mediated dearomative spirocyclization of biaryl ynones: facile access to spiro[5.5]dienones. Org Biomol Chem 2024; 22:3602-3605. [PMID: 38629922 DOI: 10.1039/d4ob00274a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/09/2024]
Abstract
This report covers boron tribromide (BBr3) mediated dearomative spirocyclization of biaryl ynones. The direct synthesis of spiro[5.5]dienones with a tri-substituted double bond is described for the first time in this paper. The scope of the reaction is broad and the spirocyclic products were obtained in moderate to good yields.
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Affiliation(s)
- Gaurav Jaiswal
- Department of Chemistry, Indian Institute of Technology Guwahati, 781039, India.
| | - Subhas Chandra Pan
- Department of Chemistry, Indian Institute of Technology Guwahati, 781039, India.
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3
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Wang W, Yu L. Synthesis of Indenones via Persulfate Promoted Radical Alkylation/Cyclization of Biaryl Ynones with 1,4-Dihydropyridines. Molecules 2024; 29:458. [PMID: 38257370 PMCID: PMC10818456 DOI: 10.3390/molecules29020458] [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: 12/24/2023] [Revised: 01/13/2024] [Accepted: 01/15/2024] [Indexed: 01/24/2024] Open
Abstract
The oxidative radical cascade cyclization of alkynes has emerged as a versatile strategy for the efficient construction of diverse structural units and complex molecules in organic chemistry. This work reports an alkyl radical initiated 5-exo-trig cyclization of biaryl ynones with 1,4-dihydropyridines to selectively synthesize indenones.
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Affiliation(s)
- Wanwan Wang
- Jiangsu Key Laboratory of Chiral Pharmaceuticals Biosynthesis, Taizhou University, Taizhou 225300, China;
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4
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Zhou W, Li ZQ, Cheng C, Lu L, Yang R, Song XR, Luo MJ, Xiao Q. Electrochemical Arene Radical Cation Promoted Spirocyclization of Biaryl Ynones: Access to Alkoxylated Spiro[5,5]trienones. Org Lett 2023; 25:9158-9163. [PMID: 38101415 DOI: 10.1021/acs.orglett.3c03678] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2023]
Abstract
Herein, a novel electrochemical arene radical cation promoted dearomative spirocyclization of biaryl ynones with alcohols is described, providing a conceptually novel transformation mode for producing diverse alkoxylated spiro[5,5]trienones. The catalyst- and chemical-oxidant-free spirocyclization protocol features broad substrate scope and high functional group tolerance. Mechanistic studies reveal that the generation of arene radical cation via anodic single-electron oxidation is crucial, with sequential 6-endo-dig cyclization, dissociation of hemiketal, anodic oxidation, and nucleophilic attack of alcohols.
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Affiliation(s)
- Wei Zhou
- Key Laboratory of Organic Chemistry of Jiangxi Province, Jiangxi Science & Technology Normal University, Nanchang, 330013, China
| | - Zi-Qiong Li
- Key Laboratory of Organic Chemistry of Jiangxi Province, Jiangxi Science & Technology Normal University, Nanchang, 330013, China
| | - Chaozhihui Cheng
- Key Laboratory of Organic Chemistry of Jiangxi Province, Jiangxi Science & Technology Normal University, Nanchang, 330013, China
| | - Lin Lu
- Key Laboratory of Organic Chemistry of Jiangxi Province, Jiangxi Science & Technology Normal University, Nanchang, 330013, China
| | - Ruchun Yang
- Key Laboratory of Organic Chemistry of Jiangxi Province, Jiangxi Science & Technology Normal University, Nanchang, 330013, China
| | - Xian-Rong Song
- Key Laboratory of Organic Chemistry of Jiangxi Province, Jiangxi Science & Technology Normal University, Nanchang, 330013, China
| | - Mu-Jia Luo
- Key Laboratory of Organic Chemistry of Jiangxi Province, Jiangxi Science & Technology Normal University, Nanchang, 330013, China
| | - Qiang Xiao
- Key Laboratory of Organic Chemistry of Jiangxi Province, Jiangxi Science & Technology Normal University, Nanchang, 330013, China
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5
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Roy B, Kuila P, Sarkar D. Visible Light Promoted Brominative Dearomatization of Biaryl Ynones to Spirocycles. J Org Chem 2023; 88:10925-10945. [PMID: 37459885 DOI: 10.1021/acs.joc.3c00941] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/05/2023]
Abstract
Bromine induced spiro cyclization of biaryl ynones facilitated the synthesis of spiro[5,5]trienones suitable for extended functionality at the C(3') position. Herein, a step-economic photo-oxidative brominative carbannulation of biaryl ynones employing ammonium bromide and riboflavin tetraacetate (RFTA) has been developed. The reactivity between distal phenyl C-H activated ortho-annulation and dearomative ipso-annulation is well exemplified. The eminent features of the methodology include metal-free, external additive free, low-loading photocatalyst (0.1 mol %), and use of a simple precursor.
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Affiliation(s)
- Barnali Roy
- Department of Chemistry, National Institute of Technology, Rourkela, Odisha 769008, India
| | - Puspendu Kuila
- Department of Chemistry, National Institute of Technology, Rourkela, Odisha 769008, India
| | - Debayan Sarkar
- Organic Synthesis and Molecular Engineering Laboratory, Department of Chemistry, Indian Institute of Technology Indore, Indore, Madhya Pradesh 453552, India
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6
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Li Y, Li L, Guo C, Yan Q, Zhou H, Wang Y, Liu ZQ, Li Z. Nitro-Spirocyclization of Biaryl Ynones with tert-Butyl Nitrite: Access to NO 2-Substituted Spiro[5,5]trienones. J Org Chem 2023; 88:4854-4862. [PMID: 36947717 DOI: 10.1021/acs.joc.3c00087] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/24/2023]
Abstract
A metal/peroxide-free involved simple cascade 6-exo-trig spirocyclization of tert-butyl nitrite with biaryl ynones has been finished, which resulted in various NO2-modified spiro[5,5]trienones with good regioselectivity/yields. A variety of scaled-up experiments, reduction/epoxidation operations, and mechanistic studies were performed to verify the merits and spirocyclization process of this radical system. Finally, the structure of the spirocycles was confirmed by single-crystal X-ray diffraction.
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Affiliation(s)
- Yang Li
- Key Laboratory of Medicinal Chemistry and Molecular Diagnosis of the Ministry of Education, College of Chemistry and Materials Science, Key Laboratory of Chemical Biology of Hebei Province, Hebei University, Baoding, Hebei 071002, PR China
| | - Lijun Li
- Key Laboratory of Medicinal Chemistry and Molecular Diagnosis of the Ministry of Education, College of Chemistry and Materials Science, Key Laboratory of Chemical Biology of Hebei Province, Hebei University, Baoding, Hebei 071002, PR China
| | - Changyou Guo
- Key Laboratory of Medicinal Chemistry and Molecular Diagnosis of the Ministry of Education, College of Chemistry and Materials Science, Key Laboratory of Chemical Biology of Hebei Province, Hebei University, Baoding, Hebei 071002, PR China
| | - Qinqin Yan
- Key Laboratory of Medicinal Chemistry and Molecular Diagnosis of the Ministry of Education, College of Chemistry and Materials Science, Key Laboratory of Chemical Biology of Hebei Province, Hebei University, Baoding, Hebei 071002, PR China
| | - Hongxun Zhou
- Key Laboratory of Medicinal Chemistry and Molecular Diagnosis of the Ministry of Education, College of Chemistry and Materials Science, Key Laboratory of Chemical Biology of Hebei Province, Hebei University, Baoding, Hebei 071002, PR China
| | - Ying Wang
- Key Laboratory of Medicinal Chemistry and Molecular Diagnosis of the Ministry of Education, College of Chemistry and Materials Science, Key Laboratory of Chemical Biology of Hebei Province, Hebei University, Baoding, Hebei 071002, PR China
| | - Zhong-Quan Liu
- Jiangsu Collaborative Innovation Center of Chinese Medicinal Resources Industrialization, College of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, Jiangsu 210023, PR China
| | - Zejiang Li
- Key Laboratory of Medicinal Chemistry and Molecular Diagnosis of the Ministry of Education, College of Chemistry and Materials Science, Key Laboratory of Chemical Biology of Hebei Province, Hebei University, Baoding, Hebei 071002, PR China
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7
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Wei G, Zhang J, Wang H, Chen Z, Wu XF. Radical selenylative cyclization of trifluoromethyl propargyl imines for the synthesis of trifluoromethyl- and seleno-azaspiro[4,5]-tetraenones and quinolines. Org Biomol Chem 2023; 21:284-288. [PMID: 36484764 DOI: 10.1039/d2ob02033e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/05/2022]
Abstract
A radical selenylative cyclization of trifluoromethyl propargyl imines with diselenides for the regiodivergent construction of diversely functionalized azaspiro[4,5]-tetraenones and quinolines has been developed, which enables dual incorporation of CF3 and Se groups into heterocycles in a one-pot reaction. When using Oxone as a green oxidant, the reaction proceeds through oxidative dearomative ipso-annulation or intramolecular ortho-annulation exhibiting good regioselectivity. The synthetic utility of this method is demonstrated by a scale-up reaction and further modification of the obtained products.
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Affiliation(s)
- Guangming Wei
- Department of Chemistry, Key Laboratory of Surface & Interface Science of Polymer Materials of Zhejiang Province, Zhejiang Sci-Tech University, Hangzhou 310018, People's Republic of China.
| | - Jiajun Zhang
- Department of Chemistry, Key Laboratory of Surface & Interface Science of Polymer Materials of Zhejiang Province, Zhejiang Sci-Tech University, Hangzhou 310018, People's Republic of China.
| | - Haoyuan Wang
- Department of Chemistry, Key Laboratory of Surface & Interface Science of Polymer Materials of Zhejiang Province, Zhejiang Sci-Tech University, Hangzhou 310018, People's Republic of China.
| | - Zhengkai Chen
- Department of Chemistry, Key Laboratory of Surface & Interface Science of Polymer Materials of Zhejiang Province, Zhejiang Sci-Tech University, Hangzhou 310018, People's Republic of China.
| | - Xiao-Feng Wu
- Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, Liaoning, China. .,Leibniz-Institut für Katalyse e. V., Albert-Einstein-Straβe 29a, 18059 Rostock, Germany.
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8
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Hellwig PS, Barcellos AM, Cargnelutti R, Barcellos T, Perin G. Synthesis of Chalcogenylchromenes through Cyclization of Propargylic Aryl Ethers. J Org Chem 2022; 87:15050-15060. [PMID: 36302502 DOI: 10.1021/acs.joc.2c01490] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
We describe here for the first time the synthesis of 2-(chalcogenyl)-3H-benzo[f]chromenes and the new 3-(phenylselanyl)-2H-chromenes by the radical or electrophilic cyclization of propargylic aryl ethers in the presence of diorganyl diselenides or ditellurides using Oxone as a green oxidant and acetonitrile as solvent in a sealed tube at 100 °C. In this study, thirty-one chalcogenylchromenes with a broad substrate scope were prepared in moderate to excellent yields (50-98%), including compounds derived from natural products.
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Affiliation(s)
- Paola S Hellwig
- Laboratório de Síntese Orgânica Limpa - LASOL, CCQFA, Universidade Federal de Pelotas - UFPel, P.O. Box 354 - 96010-900, Pelotas, RS, Brazil
| | - Angelita M Barcellos
- Laboratório de Síntese Orgânica Limpa - LASOL, CCQFA, Universidade Federal de Pelotas - UFPel, P.O. Box 354 - 96010-900, Pelotas, RS, Brazil
| | - Roberta Cargnelutti
- Departamento de Química, CCNE, Universidade Federal de Santa Maria - UFSM, 97105-900, Santa Maria, RS, Brazil
| | - Thiago Barcellos
- Laboratório de Biotecnologia de Produtos Naturais e Sintéticos, Universidade de Caxias do Sul, 95070-560, Caxias do Sul, RS, Brazil
| | - Gelson Perin
- Laboratório de Síntese Orgânica Limpa - LASOL, CCQFA, Universidade Federal de Pelotas - UFPel, P.O. Box 354 - 96010-900, Pelotas, RS, Brazil
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9
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Raji Reddy C, Subbarao M, Kolgave DH, Ajaykumar U, Vinaya PP. Access to Diverse Seleno-spirocyclohexadienones via Ag(II)-Catalyzed Selenylative ipso-Annulation with Se and Boronic Acids. ACS OMEGA 2022; 7:38045-38052. [PMID: 36312410 PMCID: PMC9608386 DOI: 10.1021/acsomega.2c05394] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/22/2022] [Accepted: 09/30/2022] [Indexed: 05/29/2023]
Abstract
An efficient and straightforward synthesis of diversified seleno-azaspiro-2,5-cyclohexadienones from N-(4-methoxy aryl)propiolamides using elemental selenium and boronic acids has been demonstrated. The reaction proceeds through silver-catalyzed oxidative dearomatization in the presence of potassium persulfate (K2S2O8) as the oxidant. Further, this approach was extended to N-(4-methoxy aryl)propiolates and biaryl ynones to access the corresponding selenylated oxospiro-2,5-cyclohexadienones and spiro[5,5]trienones, respectively. The present three-component method offers the diverse substitutions on selenium involving two C-Se and one C-C bond formations.
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10
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Wang J, Lu XX, Yang RP, Xiang ZH, Zhang BB, Chao S, Liu L, Yan Y, Shang X. Synthesis of Spiro[5.5]trienones- and Spiro[4.5]trienones-Fused Selenocyanates via Electrophilic Selenocyanogen Cyclization and Dearomative Spirocyclization. J Org Chem 2022; 87:13089-13101. [PMID: 36170059 DOI: 10.1021/acs.joc.2c01594] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A practical strategy for the synthesis of spiro[5.5]trienones-fused selenocyanates and spiro[4.5]trienones-fused selenocyanates through electrophilic selenocyanogen cyclization and dearomative spirocyclization is reported. This approach was conducted under mild conditions with broad substrate scope and good functional group tolerance. The utility of this procedure is exhibited in the late-stage functionalization of nature product and drug molecules.
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Affiliation(s)
- Jia Wang
- School of Basic Medical Sciences, Xinxiang Medical University, Xinxiang, Henan 453003, China
| | - Xiao-Xiao Lu
- School of Basic Medical Sciences, Xinxiang Medical University, Xinxiang, Henan 453003, China
| | - Run-Ping Yang
- School of Basic Medical Sciences, Xinxiang Medical University, Xinxiang, Henan 453003, China
| | - Zhi-Hao Xiang
- School of Basic Medical Sciences, Xinxiang Medical University, Xinxiang, Henan 453003, China
| | - Bing-Bing Zhang
- School of Basic Medical Sciences, Xinxiang Medical University, Xinxiang, Henan 453003, China
| | - Shujun Chao
- School of Basic Medical Sciences, Xinxiang Medical University, Xinxiang, Henan 453003, China
| | - Lixia Liu
- School of Basic Medical Sciences, Xinxiang Medical University, Xinxiang, Henan 453003, China
| | - Yunhui Yan
- School of Basic Medical Sciences, Xinxiang Medical University, Xinxiang, Henan 453003, China
| | - Xuefang Shang
- School of Basic Medical Sciences, Xinxiang Medical University, Xinxiang, Henan 453003, China
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11
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Tan X, Zhao K, Zhong X, Yang L, Dong Y, Wang T, Yu S, Li X, Zhao Z. Synthesis of 1,2-diselenides via potassium persulfate-mediated diselenation of allenamides with diselenides. Org Biomol Chem 2022; 20:6566-6570. [PMID: 35903979 DOI: 10.1039/d2ob00964a] [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
An efficient potassium persulfate-mediated radical addition of allenamides with diselenides was developed to create a workable route to 1,2-diselenide products. The reaction tolerates a wide spectrum of functional groups to deliver the products in good to excellent yields. Mechanistic investigations including a calculation study indicated that the radical cascade proceeds through a vinyl radical intermediate, which is formed via a selenium radical added to the terminal CC double bond of allenamides.
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Affiliation(s)
- Xiaoju Tan
- Key Laboratory of Basic Chemistry of the State Ethnic Commission, School of Chemistry and Environment, Southwest Minzu University, Chengdu 610041, PR China.
| | - Kun Zhao
- Key Laboratory of Basic Chemistry of the State Ethnic Commission, School of Chemistry and Environment, Southwest Minzu University, Chengdu 610041, PR China.
| | - Xuefang Zhong
- Key Laboratory of Basic Chemistry of the State Ethnic Commission, School of Chemistry and Environment, Southwest Minzu University, Chengdu 610041, PR China.
| | - Lan Yang
- Key Laboratory of Basic Chemistry of the State Ethnic Commission, School of Chemistry and Environment, Southwest Minzu University, Chengdu 610041, PR China.
| | - Yiming Dong
- Key Laboratory of Basic Chemistry of the State Ethnic Commission, School of Chemistry and Environment, Southwest Minzu University, Chengdu 610041, PR China.
| | - Tianmi Wang
- Key Laboratory of Basic Chemistry of the State Ethnic Commission, School of Chemistry and Environment, Southwest Minzu University, Chengdu 610041, PR China.
| | - Shengping Yu
- Key Laboratory of Basic Chemistry of the State Ethnic Commission, School of Chemistry and Environment, Southwest Minzu University, Chengdu 610041, PR China.
| | - Xiaoxiao Li
- Key Laboratory of Basic Chemistry of the State Ethnic Commission, School of Chemistry and Environment, Southwest Minzu University, Chengdu 610041, PR China.
| | - Zhigang Zhao
- Key Laboratory of Basic Chemistry of the State Ethnic Commission, School of Chemistry and Environment, Southwest Minzu University, Chengdu 610041, PR China.
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12
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Li JN, Li ZJ, Shen LY, Li P, Zhang Y, Yang WC. Selective polychloromethylation and halogenation of alkynes with polyhaloalkanes. Org Biomol Chem 2022; 20:6659-6666. [DOI: 10.1039/d2ob01053d] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We disclosed a selective polychloromethylation and halogenation reaction of alkynes via a radical addition/spirocyclization cascade sequence, in which applying polyhaloalkanes as the precursor of polyhalomethyl and halogen radical. Across this...
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13
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Bartz RH, Silva KB, Peglow TJ, Barcellos AM, Jacob RG, Lenardão EJ, Perin G. Radical cyclization of alkynyl aryl ketones for the synthesis of 3-seleno-substituted thiochromones and chromones. Org Biomol Chem 2022; 20:8952-8961. [DOI: 10.1039/d2ob01762h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Herein we present an alternative and transition-metal-free procedure to access 3-organoselanylthiochromones and 3-organoselanylchromones from the cyclization reaction between alkynyl aryl ketones and diorganyl diselenides promoted by Oxone®.
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Affiliation(s)
- Ricardo H. Bartz
- LASOL-CCQFA, Universidade Federal de Pelotas – UFPel, P.O. Box 354, 96010-900, Pelotas, RS, Brazil
| | - Krigor B. Silva
- LASOL-CCQFA, Universidade Federal de Pelotas – UFPel, P.O. Box 354, 96010-900, Pelotas, RS, Brazil
| | - Thiago J. Peglow
- LASOL-CCQFA, Universidade Federal de Pelotas – UFPel, P.O. Box 354, 96010-900, Pelotas, RS, Brazil
| | - Angelita M. Barcellos
- LASOL-CCQFA, Universidade Federal de Pelotas – UFPel, P.O. Box 354, 96010-900, Pelotas, RS, Brazil
| | - Raquel G. Jacob
- LASOL-CCQFA, Universidade Federal de Pelotas – UFPel, P.O. Box 354, 96010-900, Pelotas, RS, Brazil
| | - Eder J. Lenardão
- LASOL-CCQFA, Universidade Federal de Pelotas – UFPel, P.O. Box 354, 96010-900, Pelotas, RS, Brazil
| | - Gelson Perin
- LASOL-CCQFA, Universidade Federal de Pelotas – UFPel, P.O. Box 354, 96010-900, Pelotas, RS, Brazil
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14
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Xia D, Shen LY, Zhang Y, Yang WC. Radical spirocyclization of biaryl ynones for the construction of NO 2-containing spiro[5.5]trienones. NEW J CHEM 2022. [DOI: 10.1039/d2nj03670c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
An efficient 6-exo-trig radical cascade reaction of biaryl ynones with NaNO2 was developed to afford nitro-functionalized spiro[5.5]trienones with yields of up to 88%.
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Affiliation(s)
- Dong Xia
- College of Pharmacy, Jiangsu Vocational College of Medicine, Yancheng, 224005, P. R. China
| | - Liu-Yu Shen
- Guangling College and School of Plant Protection, Yangzhou University, Yangzhou, 225009, P. R. China
| | - Yicheng Zhang
- Key Laboratory of Green and Precise Synthetic Chemistry, Ministry of Education, Huaibei Normal University, Huaibei, Anhui, 235000, P. R. China
| | - Wen-Chao Yang
- Guangling College and School of Plant Protection, Yangzhou University, Yangzhou, 225009, P. R. China
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15
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Chen Z, Zheng X, Zhou SF, Cui X. Visible Light-Promoted Selenylative Spirocyclization of Biaryl Ynones toward the Formation of Selenated Spiro[5.5]trienones. Org Biomol Chem 2022; 20:5779-5783. [DOI: 10.1039/d2ob01006b] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A visible-light induced dearomative cascade cyclization of biaryl ynones with diselenides under photocatalyst and external additive-free conditions has been explored, giving a series of selenated spiro[5.5]trienones in moderate to good...
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