1
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Di Terlizzi L, Galathri EM, Protti S, Kokotos CG, Fagnoni M. A General Metal-Free Protocol for the Visible-Light-Driven Protection of Carbonyls. CHEMSUSCHEM 2023; 16:e202201998. [PMID: 36427248 DOI: 10.1002/cssc.202201998] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/28/2022] [Revised: 11/25/2022] [Indexed: 06/16/2023]
Abstract
The protection of a carbonyl is a standard procedure to mask the reactivity of this group towards nucleophiles and reductants. The present work pointed out the potentialities of arylazo sulfones as non-ionic photoacid generators (PAGs) to promote the efficient conversion of aldehydes and ketones into acetals, ketals, and 1,3-oxazolidines upon visible-light irradiation. This approach employed mild conditions and exhibited an easy scalability and a broad scope (80 examples included).
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Affiliation(s)
- Lorenzo Di Terlizzi
- PhotoGreen Lab, Department of Chemistry, University of Pavia, Viale Taramelli 12, 27100, Pavia, Italy
| | - Eirini M Galathri
- Laboratory of Organic Chemistry, Department of Chemistry, National and Kapodistrian University of Athens, Panepistimiopolis, 15771, Athens, Greece
| | - Stefano Protti
- PhotoGreen Lab, Department of Chemistry, University of Pavia, Viale Taramelli 12, 27100, Pavia, Italy
| | - Christoforos G Kokotos
- Laboratory of Organic Chemistry, Department of Chemistry, National and Kapodistrian University of Athens, Panepistimiopolis, 15771, Athens, Greece
| | - Maurizio Fagnoni
- PhotoGreen Lab, Department of Chemistry, University of Pavia, Viale Taramelli 12, 27100, Pavia, Italy
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2
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Paley RS, Hejna BG, Quevedo RE, Wong AR, Dow NW, Murphy JS, Choi S, Yu M, Rablen PR, Pike RD. N-Oxazolidinoyl Diene Iron(0) Tricarbonyl Complexes: Preparation by Diastereoselective Complexation and Synthetic Applications. Organometallics 2022. [DOI: 10.1021/acs.organomet.2c00272] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Robert S. Paley
- Department of Chemistry and Biochemistry, Swarthmore College, 500 College Avenue, Swarthmore, Pennsylvania 19081, United States
| | - Benjamin G. Hejna
- Department of Chemistry and Biochemistry, Swarthmore College, 500 College Avenue, Swarthmore, Pennsylvania 19081, United States
| | - Raundi E. Quevedo
- Department of Chemistry and Biochemistry, Swarthmore College, 500 College Avenue, Swarthmore, Pennsylvania 19081, United States
| | - Alice R. Wong
- Department of Chemistry and Biochemistry, Swarthmore College, 500 College Avenue, Swarthmore, Pennsylvania 19081, United States
| | - Nathan W. Dow
- Department of Chemistry and Biochemistry, Swarthmore College, 500 College Avenue, Swarthmore, Pennsylvania 19081, United States
| | - Julia S. Murphy
- Department of Chemistry and Biochemistry, Swarthmore College, 500 College Avenue, Swarthmore, Pennsylvania 19081, United States
| | - Sooyun Choi
- Department of Chemistry and Biochemistry, Swarthmore College, 500 College Avenue, Swarthmore, Pennsylvania 19081, United States
| | - Mason Yu
- Department of Chemistry and Biochemistry, Swarthmore College, 500 College Avenue, Swarthmore, Pennsylvania 19081, United States
| | - Paul R. Rablen
- Department of Chemistry and Biochemistry, Swarthmore College, 500 College Avenue, Swarthmore, Pennsylvania 19081, United States
| | - Robert D. Pike
- Department of Chemistry, William & Mary, P.O. Box 8795, Williamsburg, Virginia 23187, United States
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3
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Maruyama K, Kanazawa A, Aoshima S. Alternating Cationic Copolymerization of Vinyl Ethers and Aryl-Substituted Cyclic Acetals: Structural Investigation of Effects of Cyclic Acetals on Copolymerizability. Macromolecules 2022. [DOI: 10.1021/acs.macromol.2c00354] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Kazuya Maruyama
- Department of Macromolecular Science, Graduate School of Science, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - Arihiro Kanazawa
- Department of Macromolecular Science, Graduate School of Science, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - Sadahito Aoshima
- Department of Macromolecular Science, Graduate School of Science, Osaka University, Toyonaka, Osaka 560-0043, Japan
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4
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Wang D, Cao FR, Lu G, Ren J, Zeng BB. Practical acetalization and transacetalization of carbonyl compounds catalyzed by recyclable PVP-I. Tetrahedron 2021. [DOI: 10.1016/j.tet.2021.132250] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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5
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Higuchi M, Kanazawa A, Aoshima S. Unzipping and scrambling
reaction‐induced
sequence control of copolymer chains via temperature changes during cationic
ring‐opening
copolymerization of cyclic acetals and cyclic esters. JOURNAL OF POLYMER SCIENCE 2021. [DOI: 10.1002/pol.20210197] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Motoki Higuchi
- Department of Macromolecular Science, Graduate School of Science Osaka University Toyonaka Osaka Japan
| | - Arihiro Kanazawa
- Department of Macromolecular Science, Graduate School of Science Osaka University Toyonaka Osaka Japan
| | - Sadahito Aoshima
- Department of Macromolecular Science, Graduate School of Science Osaka University Toyonaka Osaka Japan
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6
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Subaramanian M, Landge VG, Mondal A, Gupta V, Balaraman E. Nickel-Catalyzed Chemoselective Acetalization of Aldehydes With Alcohols under Neutral Conditions. Chem Asian J 2019; 14:4557-4562. [PMID: 31407487 DOI: 10.1002/asia.201900908] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2019] [Revised: 08/08/2019] [Indexed: 01/02/2023]
Abstract
A molecularly defined NiII -complex catalyzing the chemoselective acetalization of aldehydes with alcohols under neutral conditions is reported. The reaction is general, efficient and showed a wide substrate scope (including aliphatic aldehydes) as well as excellent functional group tolerance. Reusability of the present nickel catalyst is also demonstrated.
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Affiliation(s)
- Murugan Subaramanian
- Department of Chemistry, Indian Institute of Science Education and Research Tirupati (IISER-Tirupati), Tirupati-, 517507, India
| | - Vinod G Landge
- Department of Chemistry, Indian Institute of Science Education and Research Tirupati (IISER-Tirupati), Tirupati-, 517507, India
| | - Akash Mondal
- Department of Chemistry, Indian Institute of Science Education and Research Tirupati (IISER-Tirupati), Tirupati-, 517507, India
| | - Virendrakumar Gupta
- Polymer Synthesis & Catalysis, Reliance Research &, Development Centre, Reliance Industries Limited, Ghansoli-, 400701, Navi Mumbai, India
| | - Ekambaram Balaraman
- Department of Chemistry, Indian Institute of Science Education and Research Tirupati (IISER-Tirupati), Tirupati-, 517507, India
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7
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Chaffey DR, Alamillo-Ferrer C, Davies TE, Taylor SH, Tomkinson NCO, Graham AE. Metal Triflate-Promoted Allylic Substitution Reactions of Cinnamyl Alcohol in the Presence of Orthoesters and Acetals. ACS OMEGA 2019; 4:15985-15991. [PMID: 31592469 PMCID: PMC6776978 DOI: 10.1021/acsomega.9b02059] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/05/2019] [Accepted: 08/22/2019] [Indexed: 06/10/2023]
Abstract
The product distribution of ethers formed from the reaction of cinnamyl alcohol with orthoesters in the presence of indium (III) triflate (InOTf)3 is dependent on both the reaction temperature and catalyst loading. Carrying out the reaction at room temperature under low loadings of the catalyst leads to a facile reaction generating the unexpected secondary allyl ether as the major product. In contrast, carrying out the reaction under higher catalyst loadings at elevated temperatures provides the expected primary linear ether in high yield and with excellent selectivity. The etherification reaction is also effective in the presence of acetals and ketals in place of orthoesters and allows for the development of the procedure to encompass a telescoped etherification protocol in which the acetal is generated in situ.
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Affiliation(s)
- Dawn R. Chaffey
- School
of Applied Sciences, University of South
Wales, Pontypridd CF37 4AT, UK
| | - Carla Alamillo-Ferrer
- WestCHEM,
Department of Pure and Applied Chemistry, Thomas Graham Building, University of Strathclyde, Glasgow G1 1XL, UK
| | - Thomas E. Davies
- Cardiff
Catalysis Institute, School of Chemistry, Cardiff University, Main Building, Park Place, Cardiff CF10 3AT, UK
| | - Stuart H. Taylor
- Cardiff
Catalysis Institute, School of Chemistry, Cardiff University, Main Building, Park Place, Cardiff CF10 3AT, UK
| | - Nicholas C. O. Tomkinson
- WestCHEM,
Department of Pure and Applied Chemistry, Thomas Graham Building, University of Strathclyde, Glasgow G1 1XL, UK
| | - Andrew E. Graham
- School
of Applied Sciences, University of South
Wales, Pontypridd CF37 4AT, UK
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8
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Maruyama K, Kanazawa A, Aoshima S. Controlled cationic copolymerization of vinyl monomers and cyclic acetals via concurrent vinyl-addition and ring-opening mechanisms: the systematic study of structural effects on the copolymerization behavior. Polym Chem 2019. [DOI: 10.1039/c9py01024f] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
The effects of the structures of cyclic acetals on the copolymerization behavior were systematically investigated in the cationic copolymerization with vinyl ethers.
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Affiliation(s)
- Kazuya Maruyama
- Department of Macromolecular Science
- Graduate School of Science
- Osaka University
- Osaka 560-0043
- Japan
| | - Arihiro Kanazawa
- Department of Macromolecular Science
- Graduate School of Science
- Osaka University
- Osaka 560-0043
- Japan
| | - Sadahito Aoshima
- Department of Macromolecular Science
- Graduate School of Science
- Osaka University
- Osaka 560-0043
- Japan
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9
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Dong JL, Yu LSH, Xie JW. A Simple and Versatile Method for the Formation of Acetals/Ketals Using Trace Conventional Acids. ACS OMEGA 2018; 3:4974-4985. [PMID: 31458712 PMCID: PMC6641695 DOI: 10.1021/acsomega.8b00159] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/27/2018] [Accepted: 04/12/2018] [Indexed: 06/01/2023]
Abstract
An important and surprising finding that the acetalization and ketalization of aldehydes and ketones with alcohols, respectively, proceed smoothly in the presence of 0.1 mol % acid, without removing water, has been presented. This process has many merits, such as commercial available catalysts with low cost and low loadings (as low as 0.03 mol %), quite a broad substrate scope (including various aldehydes, ketones, acid-sensitive substrates, and diols), a wide range of reaction temperature (-60 to 50 °C), high yields, large-scale preparation, environmental friendliness, and simple work-up procedure. This new protocol has also been successfully applied to protect the important organic compounds, such as 1,3-diols, 1,2-diols, acid-sensitive substrates, glucose, and 1,3-dicarbonyl compounds.
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10
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Maier L, Khirsariya P, Hylse O, Adla SK, Černová L, Poljak M, Krajčovičová S, Weis E, Drápela S, Souček K, Paruch K. Diastereoselective Flexible Synthesis of Carbocyclic C-Nucleosides. J Org Chem 2017; 82:3382-3402. [PMID: 28267331 DOI: 10.1021/acs.joc.6b02594] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Carbocyclic C-nucleosides are quite rare. Our route enables flexible preparation of three classes of these nucleoside analogs from common precursors-properly substituted cyclopentanones, which can be prepared racemic (in six steps) or optically pure (in ten steps) from inexpensive norbornadiene. The methodology allows flexible manipulation of individual positions around the cyclopentane ring, namely highly diastereoselective installation of carbo- and heterocyclic substituents at position 1', orthogonal functionalization of position 5', and efficient inversion of stereochemistry at position 2'. Newly prepared carbocyclic C-analog of tubercidine, profiled in MCF7 (breast cancer) and HFF1 (human foreskin fibroblasts) cell cultures, is less potent than tubercidine itself, but more selectively toxic toward the tumorigenic cells.
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Affiliation(s)
- Lukáš Maier
- Department of Chemistry, CZ Openscreen, Faculty of Science, Masaryk University , Kamenice 5/A8, 625 00 Brno, Czech Republic.,International Center for Clinical Research, St. Anne's University Hospital Brno , Pekařská 53, 656 91 Brno, Czech Republic
| | - Prashant Khirsariya
- Department of Chemistry, CZ Openscreen, Faculty of Science, Masaryk University , Kamenice 5/A8, 625 00 Brno, Czech Republic.,International Center for Clinical Research, St. Anne's University Hospital Brno , Pekařská 53, 656 91 Brno, Czech Republic
| | - Ondřej Hylse
- Department of Chemistry, CZ Openscreen, Faculty of Science, Masaryk University , Kamenice 5/A8, 625 00 Brno, Czech Republic.,International Center for Clinical Research, St. Anne's University Hospital Brno , Pekařská 53, 656 91 Brno, Czech Republic
| | - Santosh Kumar Adla
- Department of Chemistry, CZ Openscreen, Faculty of Science, Masaryk University , Kamenice 5/A8, 625 00 Brno, Czech Republic
| | - Lenka Černová
- Department of Chemistry, CZ Openscreen, Faculty of Science, Masaryk University , Kamenice 5/A8, 625 00 Brno, Czech Republic
| | - Michal Poljak
- Department of Chemistry, CZ Openscreen, Faculty of Science, Masaryk University , Kamenice 5/A8, 625 00 Brno, Czech Republic
| | - Soňa Krajčovičová
- Department of Chemistry, CZ Openscreen, Faculty of Science, Masaryk University , Kamenice 5/A8, 625 00 Brno, Czech Republic
| | - Erik Weis
- Department of Chemistry, CZ Openscreen, Faculty of Science, Masaryk University , Kamenice 5/A8, 625 00 Brno, Czech Republic
| | - Stanislav Drápela
- Department of Cytokinetics, Institute of Biophysics, Academy of Sciences of the Czech Republic , Královopolská 135, 612 00 Brno, Czech Republic
| | - Karel Souček
- International Center for Clinical Research, St. Anne's University Hospital Brno , Pekařská 53, 656 91 Brno, Czech Republic.,Department of Cytokinetics, Institute of Biophysics, Academy of Sciences of the Czech Republic , Královopolská 135, 612 00 Brno, Czech Republic
| | - Kamil Paruch
- Department of Chemistry, CZ Openscreen, Faculty of Science, Masaryk University , Kamenice 5/A8, 625 00 Brno, Czech Republic.,International Center for Clinical Research, St. Anne's University Hospital Brno , Pekařská 53, 656 91 Brno, Czech Republic
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11
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Yi H, Niu L, Wang S, Liu T, Singh AK, Lei A. Visible-Light-Induced Acetalization of Aldehydes with Alcohols. Org Lett 2016; 19:122-125. [PMID: 28004943 DOI: 10.1021/acs.orglett.6b03403] [Citation(s) in RCA: 51] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
In this work, we have achieved a simple and general method for acetalization of aldehydes by means of a photochemical reaction under low-energy visible light irradiation. A broad range of aromatic, heteroaromatic, and aliphatic aldehydes have been protected under neutral conditions in good to excellent yields using a catalytic amount of Eosin Y as the photocatalyst. Our visible light mediated acetalization strategies are successful for more challenging acid-sensitive aldehydes and sterically hindered aldehydes. Notably, this protocol is chemoselective to aldehydes, while ketones remain intact.
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Affiliation(s)
- Hong Yi
- College of Chemistry and Molecular Sciences, Institute for Advanced Studies (IAS), Wuhan University , Wuhan, Hubei 430072, P. R. China
| | - Linbin Niu
- College of Chemistry and Molecular Sciences, Institute for Advanced Studies (IAS), Wuhan University , Wuhan, Hubei 430072, P. R. China
| | - Shengchun Wang
- College of Chemistry and Molecular Sciences, Institute for Advanced Studies (IAS), Wuhan University , Wuhan, Hubei 430072, P. R. China
| | - Tianyi Liu
- College of Chemistry and Molecular Sciences, Institute for Advanced Studies (IAS), Wuhan University , Wuhan, Hubei 430072, P. R. China
| | - Atul K Singh
- College of Chemistry and Molecular Sciences, Institute for Advanced Studies (IAS), Wuhan University , Wuhan, Hubei 430072, P. R. China
| | - Aiwen Lei
- College of Chemistry and Molecular Sciences, Institute for Advanced Studies (IAS), Wuhan University , Wuhan, Hubei 430072, P. R. China.,National Research Center for Carbohydrate Synthesis, Jiangxi Normal University , Nanchang, Jiangxi 330022, P. R. China
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12
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Brachvogel RC, von Delius M. The Dynamic Covalent Chemistry of Esters, Acetals and Orthoesters. European J Org Chem 2016. [DOI: 10.1002/ejoc.201600388] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- René-Chris Brachvogel
- Institute of Organic Chemistry and Advanced Materials; University of Ulm; Albert-Einstein-Allee 11 89081 Ulm Germany
- Friedrich-Alexander University Erlangen-Nürnberg (FAU); Department of Chemistry and Pharmacy & Interdisciplinary Center of Molecular Materials (ICMM); Henkestr. 42 91054 Erlangen Germany
| | - Max von Delius
- Institute of Organic Chemistry and Advanced Materials; University of Ulm; Albert-Einstein-Allee 11 89081 Ulm Germany
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13
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Botubol-Ares JM, Durán-Peña MJ, Hernández-Galán R, Collado IG, Harwood LM, Macías-Sánchez AJ. nor-Mevaldic acid surrogates as selective antifungal agent leads against Botrytis cinerea. Enantioselective preparation of 4-hydroxy-6-(1-phenylethoxy)tetrahydro-2H-pyran-2-one. Bioorg Med Chem 2015; 23:3379-87. [PMID: 25971873 DOI: 10.1016/j.bmc.2015.04.048] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2015] [Revised: 04/13/2015] [Accepted: 04/15/2015] [Indexed: 11/29/2022]
Abstract
Solvent-free desymmetrisation of meso-dialdehyde 1 with chiral 1-phenylethan-1-ol, led to preparation of 4-silyloxy-6-alkyloxytetrahydro-2H-pyran-2-one (+)-3a with a 96:4 dr Deprotected lactone (+)-19a and the related racemic lactones 16a-18a present a lactone moiety resembling the natural substrate of HMG-CoA reductase and their antifungal properties have been evaluated against the phytopathogenic fungi Botrytis cinerea and Colletotrichum gloeosporioides. These compounds were selectively active against B. cinerea, while inactive against C. gloeosporioides.
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Affiliation(s)
- José Manuel Botubol-Ares
- Departamento de Química Orgánica, Facultad de Ciencias, Campus Universitario Puerto Real, Universidad de Cádiz, Puerto Real, Cádiz 11510, Spain
| | - María Jesús Durán-Peña
- Departamento de Química Orgánica, Facultad de Ciencias, Campus Universitario Puerto Real, Universidad de Cádiz, Puerto Real, Cádiz 11510, Spain
| | - Rosario Hernández-Galán
- Departamento de Química Orgánica, Facultad de Ciencias, Campus Universitario Puerto Real, Universidad de Cádiz, Puerto Real, Cádiz 11510, Spain
| | - Isidro G Collado
- Departamento de Química Orgánica, Facultad de Ciencias, Campus Universitario Puerto Real, Universidad de Cádiz, Puerto Real, Cádiz 11510, Spain
| | - Laurence M Harwood
- Department of Chemistry, University of Reading, Whiteknights, Reading RG6 6AD, United Kingdom
| | - Antonio J Macías-Sánchez
- Departamento de Química Orgánica, Facultad de Ciencias, Campus Universitario Puerto Real, Universidad de Cádiz, Puerto Real, Cádiz 11510, Spain.
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14
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Bamoniri A, Moshtael-Arani N. BF3-Functionalized Silica-Coated Magnetic Nanoparticles as a Novel Heterogeneous Solid Acid for Synthesis of Formazan Derivatives via a Green Protocol. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2015. [DOI: 10.1246/bcsj.20140298] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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15
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Griesbeck AG, Maaßen A, Bräutigam M, Pietsch M. Model Studies on Peroxidic Glutathione Transferase (GST) Inhibitors: C5-Methylated 1,2,4-Trioxanes with C6-Acrylate Side Chains. European J Org Chem 2015. [DOI: 10.1002/ejoc.201500326] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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16
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Kean JR, Graham AE. Indium(III) triflate promoted synthesis of alkyl levulinates from furyl alcohols and furyl aldehydes. CATAL COMMUN 2015. [DOI: 10.1016/j.catcom.2014.10.013] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
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17
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Phillips DJ, Kean JL, Graham AE. Sequential- and tandem-oxidation–epoxidation reactions employing guanidine bases. Tetrahedron 2013. [DOI: 10.1016/j.tet.2013.05.036] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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