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Papis M, Colombo S, Spanu D, Recchia S, Nava D, Foschi F, Broggini G, Loro C. Diastereoselective Palladaelectro-Catalyzed Construction of Bromomethyl Morpholines as Key Step To Access Morpholino Homonucleosides. Org Lett 2024; 26:6330-6334. [PMID: 39037909 DOI: 10.1021/acs.orglett.4c01790] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/24/2024]
Abstract
A synthetic protocol for the preparation of a new class of morpholino homonucleosides in enantiopure form starting from readily available 1,2-aminoalcohols or glycidol has been developed. Key intermediates of the synthetic sequence are 2-bromomethyl morpholines, diastereoselectively achieved from the corresponding alkenols by palladaelectro-catalyzed alkoxybromination of unactivated alkenes. The so obtained bromo derivatives are in turn susceptible to functionalization with nucleic bases for easy access to morpholino homonucleosides.
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Affiliation(s)
- Marta Papis
- Dipartimento di Scienza e Alta Tecnologia, Università degli Studi dell'Insubria, Via Valleggio 9, 22100, Como, Italy
| | - Sara Colombo
- Dipartimento di Scienza e Alta Tecnologia, Università degli Studi dell'Insubria, Via Valleggio 9, 22100, Como, Italy
| | - Davide Spanu
- Dipartimento di Scienza e Alta Tecnologia, Università degli Studi dell'Insubria, Via Valleggio 9, 22100, Como, Italy
| | - Sandro Recchia
- Dipartimento di Scienza e Alta Tecnologia, Università degli Studi dell'Insubria, Via Valleggio 9, 22100, Como, Italy
| | - Donatella Nava
- DISFARM, Sezione di Chimica Generale e Organica "A. Marchesini", Università degli Studi di Milano, Via Venezian 21, 20133, Milano, Italy
| | - Francesca Foschi
- Dipartimento di Scienza e Alta Tecnologia, Università degli Studi dell'Insubria, Via Valleggio 9, 22100, Como, Italy
| | - Gianluigi Broggini
- Dipartimento di Scienza e Alta Tecnologia, Università degli Studi dell'Insubria, Via Valleggio 9, 22100, Como, Italy
| | - Camilla Loro
- Dipartimento di Scienza e Alta Tecnologia, Università degli Studi dell'Insubria, Via Valleggio 9, 22100, Como, Italy
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2
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Zhang S, Zhu HT, Xi JJ, Wang SB, Chang X, Shen CP, Feng Y, Zhang ZY, Zhao MT, Zhang LK, Li M, Jin X, Zhou AX, Zhou NN. Brønsted Acid-Catalyzed Intramolecular Tandem Double Cyclization of γ-Hydroxy Acetylenic Ketones with Alkynes into Naphtho[1,2- b]furan-3-ones. J Org Chem 2024; 89:1633-1647. [PMID: 38235569 DOI: 10.1021/acs.joc.3c02300] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2024]
Abstract
A metal-free and atom-economic route for the synthesis of naphtho[1,2-b]furan-3-ones has been realized via p-TsOH·H2O-catalyzed intramolecular tandem double cyclization of γ-hydroxy acetylenic ketones with alkynes in formic acid. The benzene-linked furanonyl-ynes are the key intermediates obtained by the scission/recombination of C-O double bonds. Further, the structural modifications of the representative product were implemented by reduction, demethylation, substitution, and [5 + 2]-cycloaddition.
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Affiliation(s)
- Sen Zhang
- College of Chemistry and Chemical Engineering, Shannxi Key Laboratory of Phytochemistry, Baoji University of Arts and Sciences, Baoji 721013, China
| | - Hai-Tao Zhu
- College of Chemistry and Chemical Engineering, Shannxi Key Laboratory of Phytochemistry, Baoji University of Arts and Sciences, Baoji 721013, China
| | - Jia-Jun Xi
- College of Chemistry and Chemical Engineering, Shannxi Key Laboratory of Phytochemistry, Baoji University of Arts and Sciences, Baoji 721013, China
| | - San-Bao Wang
- College of Chemistry and Chemical Engineering, Shannxi Key Laboratory of Phytochemistry, Baoji University of Arts and Sciences, Baoji 721013, China
| | - Xin Chang
- College of Chemistry and Chemical Engineering, Shannxi Key Laboratory of Phytochemistry, Baoji University of Arts and Sciences, Baoji 721013, China
| | - Cheng-Ping Shen
- College of Chemistry and Chemical Engineering, Shannxi Key Laboratory of Phytochemistry, Baoji University of Arts and Sciences, Baoji 721013, China
| | - Yue Feng
- College of Chemistry and Chemical Engineering, Shannxi Key Laboratory of Phytochemistry, Baoji University of Arts and Sciences, Baoji 721013, China
| | - Zhao-Yang Zhang
- College of Chemistry and Chemical Engineering, Shannxi Key Laboratory of Phytochemistry, Baoji University of Arts and Sciences, Baoji 721013, China
| | - Meng-Ting Zhao
- College of Chemistry and Chemical Engineering, Shannxi Key Laboratory of Phytochemistry, Baoji University of Arts and Sciences, Baoji 721013, China
| | - Li-Kun Zhang
- College of Chemistry and Chemical Engineering, Shannxi Key Laboratory of Phytochemistry, Baoji University of Arts and Sciences, Baoji 721013, China
| | - Mi Li
- Gansu University Key Laboratory for Molecular Medicine & Chinese Medicine Prevention and Treatment of Major Diseases, Gansu University of Chinese Medicine, Lanzhou 730000, 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
| | - An-Xi Zhou
- key Laboratory of Applied Organic Chemistry, Higher Institutions of Jiangxi Province, Shangrao Normal University, Shangrao 334000, China
| | - Ni-Ni Zhou
- College of Chemistry and Chemical Engineering, Shannxi Key Laboratory of Phytochemistry, Baoji University of Arts and Sciences, Baoji 721013, China
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Mao K, Bian M, Dai L, Zhang J, Yu Q, Wang C, Rong L. Metal-Free Radical Annulation of Oxygen-Containing 1,7-Enynes: Configuration-Selective Synthesis of ( E)-3-((Arylsulfonyl)methyl)-4-Substituted Arylidenechromene Derivatives. Org Lett 2021; 23:218-224. [PMID: 33351635 DOI: 10.1021/acs.orglett.0c03946] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
A novel strategy for the synthesis of (E)-3-((arylsulfonyl)methyl)-4-substituted benzylidenechromene derivatives via a metal-free radical annulation reaction of oxygen-containing 1,7-enynes with thiosulfonates has been developed. The reaction shows broad substrate scope, wide functional group tolerance, and moderate to excellent yields. Moreover, thiosulfonates were well driven to achieve the bifunctionalization reaction of oxo-1,7-enynes which derived from aliphatic alkynes. In addition, the (E)-configuration of the products was highly controlled by the structure of 1,7-enyne.
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Affiliation(s)
- Kaimin Mao
- Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials, School of Chemistry and Materials Science, Jiangsu Normal University, Xuzhou 221116, Jiangsu, P.R. China
| | - Mouwang Bian
- Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials, School of Chemistry and Materials Science, Jiangsu Normal University, Xuzhou 221116, Jiangsu, P.R. China
| | - Lei Dai
- Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials, School of Chemistry and Materials Science, Jiangsu Normal University, Xuzhou 221116, Jiangsu, P.R. China
| | - Jinghang Zhang
- Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials, School of Chemistry and Materials Science, Jiangsu Normal University, Xuzhou 221116, Jiangsu, P.R. China
| | - Qiuyu Yu
- Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials, School of Chemistry and Materials Science, Jiangsu Normal University, Xuzhou 221116, Jiangsu, P.R. China
| | - Chang Wang
- Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials, School of Chemistry and Materials Science, Jiangsu Normal University, Xuzhou 221116, Jiangsu, P.R. China
| | - Liangce Rong
- Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials, School of Chemistry and Materials Science, Jiangsu Normal University, Xuzhou 221116, Jiangsu, P.R. China
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4
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Neto JSS, Zeni G. Transition Metal‐Catalyzed and Metal‐Free Cyclization Reactions of Alkynes with Nitrogen‐Containing Substrates: Synthesis of Pyrrole Derivatives. ChemCatChem 2020. [DOI: 10.1002/cctc.201902325] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Jose S. S. Neto
- Departamento de QuímicaUniversidade Federal de Santa Catarina Florianópolis Santa Catarina 88040-900 Brazil
| | - Gilson Zeni
- Department of Biochemistry and Molecular Biology Laboratório de Síntese Reatividade Avaliação Farmacológica e Toxicológica de Organocalcogênios, CCNEUniversidade Federal de Santa Maria Santa Maria Rio Grande do Sul 97105-900 Brazil
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5
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Mishima N, Ogawa T, Tanabe G, Muraoka O, Wasada H, Hatae N, Yoshimatsu M. Synthesis of Thiazinoimidazoles by Lewis Acid-Catalyzed [3+3] Cycloaddition Reactions of Propargyl Alcohols with 2-Mercaptoimidazoles. European J Org Chem 2019. [DOI: 10.1002/ejoc.201900367] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Naoya Mishima
- Department of Chemistry; Faculty of Education Gifu University; Yanagido 1-1 501-1193 Gifu Japan
| | - Takahiro Ogawa
- Department of Chemistry; Faculty of Education Gifu University; Yanagido 1-1 501-1193 Gifu Japan
| | - Genzoh Tanabe
- Faculty of Pharmaceuticy; The Kindai University; Kowakae 3-4-1, Higashi-osaka 577-8502 Osaka Japan
| | - Osamu Muraoka
- Faculty of Pharmaceuticy; The Kindai University; Kowakae 3-4-1, Higashi-osaka 577-8502 Osaka Japan
| | - Hiroaki Wasada
- Department of Chemistry; Faculty of Regional Study; Gifu University; Gifu Japan
| | - Noriyuki Hatae
- School of Pharmaceutical Sciences; Faculty of Regional Study; Health Science University of Hokkaido; Ishikari- 061-0293 Tobetsu Hokkaido Japan
| | - Mitsuhiro Yoshimatsu
- Department of Chemistry; Faculty of Education Gifu University; Yanagido 1-1 501-1193 Gifu Japan
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Go T, Morimatsu A, Wasada H, Tanabe G, Muraoka O, Sawada Y, Yoshimatsu M. Unprecedented nucleophile-promoted 1,7-S or Se shift reactions under Pummerer reaction conditions of 4-alkenyl-3-sulfinylmethylpyrroles. Beilstein J Org Chem 2018; 14:2722-2729. [PMID: 30498522 PMCID: PMC6244179 DOI: 10.3762/bjoc.14.250] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2018] [Accepted: 10/03/2018] [Indexed: 01/28/2023] Open
Abstract
A unique 1,7-S- and Se-shift reaction under Pummerer reaction conditions of 4-alkenyl-3-sulfinyl- and seleninylpyrroles was described. The usual Pummerer reaction of 4-(alkenylaminomethyl)-3-phenylsulfinylpyrroles and a successive reaction with tetrabutylammonium hydroxide (TBAH) yielded either pyrrolo[3,2-c]azepines or N-pyrrol-3-ylmethyl-N-(4-hydroxy-3-sulfanylpropyl)-p-toluenesulfonamides (diols). Seleno-Pummerer reactions of 3-selanylmethylpyrroles also proceeded via in situ generation of selenoxides, followed by a treatment with TBAH.
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Affiliation(s)
- Takashi Go
- Department of Chemistry, Faculty of Education, Gifu University, Yanagido 1-1, Gifu 501-1193, Japan
| | - Akane Morimatsu
- Department of Chemistry, Faculty of Education, Gifu University, Yanagido 1-1, Gifu 501-1193, Japan
| | - Hiroaki Wasada
- Department of Chemistry, Faculty of Regional Study, Gifu University, Yanagido 1-1, Gifu 501-1193, Japan
| | - Genzoh Tanabe
- School of Pharmacy, Kindai University, 3-4-1 Kowakae, Higashi-osaka, Osaka 577-8502, Japan
| | - Osamu Muraoka
- School of Pharmacy, Kindai University, 3-4-1 Kowakae, Higashi-osaka, Osaka 577-8502, Japan
| | - Yoshiharu Sawada
- Life Science Research Center, Gifu University, Yanagido 1-1, Gifu 501-1193, Japan
| | - Mitsuhiro Yoshimatsu
- Department of Chemistry, Faculty of Education, Gifu University, Yanagido 1-1, Gifu 501-1193, Japan
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