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Chang MY, Chen PH. Synthesis of 4-sulfonyl-1,7-diesters via K 2CO 3-mediated alkylative debenzoylation of α-sulfonyl o-hydroxyacetophenones with acrylates. Org Biomol Chem 2024; 22:1194-1204. [PMID: 38224195 DOI: 10.1039/d3ob01703f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2024]
Abstract
The synthesis of 4-sulfonyl-1,7-diesters was well developed, under open-vessel conditions, by K2CO3-mediated double alkylation of α-sulfonyl o-hydroxyacetophenones with acrylates and tandem debenzoylation of the resulting α,α-disubstituted o-hydroxyacetophenones. A plausible mechanism is proposed and discussed here. This high-yielding protocol provides a highly effective intermolecular alkylation and intramolecular debenzoylation via the formation of two carbon-carbon (C-C) single bonds and the cleavage of a carbon-carbon (C-C) single bond.
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Affiliation(s)
- Meng-Yang Chang
- Department of Medicinal and Applied Chemistry, Kaohsiung Medical University, Kaohsiung 807, Taiwan.
- Department of Medical Research, Kaohsiung Medical University Hospital, Kaohsiung 807, Taiwan
- NPUST College of Professional Studies, National Pingtung University of Science and Technology, Pingtung 912, Taiwan
| | - Pin-Hsien Chen
- Department of Medicinal and Applied Chemistry, Kaohsiung Medical University, Kaohsiung 807, Taiwan.
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2
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Cook A, Bezaire M, Newman SG. Nickel-catalyzed desulfonylative olefination of β-hydroxysulfones. Org Chem Front 2023. [DOI: 10.1039/d2qo01999j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/22/2023]
Abstract
A Ni-catalyzed C–O bond activation is used to access alkenes directly from β-hydroxysulfones.
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Affiliation(s)
- Adam Cook
- Centre for Catalysis Research and Innovation, Department of Chemistry and Biomolecular Sciences, University of Ottawa, 10 Marie Curie, Ottawa, Ontario K1N 6N5, Canada
| | - Maxwell Bezaire
- Centre for Catalysis Research and Innovation, Department of Chemistry and Biomolecular Sciences, University of Ottawa, 10 Marie Curie, Ottawa, Ontario K1N 6N5, Canada
| | - Stephen G. Newman
- Centre for Catalysis Research and Innovation, Department of Chemistry and Biomolecular Sciences, University of Ottawa, 10 Marie Curie, Ottawa, Ontario K1N 6N5, Canada
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Affiliation(s)
- Hans‐Joachim Gais
- Institute of Organic Chemistry RWTH Aachen University Professor-Pirlet Strasse 1 52074 Aachen Germany
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Luo Y, Su R, Yang H. Efficient copper(i)-catalyzed oxidative intermolecular 1,2-estersulfenylation of styrenes with peroxyesters and disulfides. Org Biomol Chem 2021; 18:5045-5049. [PMID: 32573616 DOI: 10.1039/d0ob00823k] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
A simple and practical method for the synthesis of thio-substituted esters through copper(i)-catalyzed intermolecular 1,2-estersulfenylation of styrenes with peroxyesters and disulfides was developed. In this transformation, two new C-S bond and C-O bond were constructed simultaneously under a copper catalyst system, and the transformation exhibits a broad substrate scope and good functional group compatibility. In addition, this method can also be applied to arylthiols. It should be noted that peroxyesters not only acted as nucleophilic reagents but also as oxidants.
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Affiliation(s)
- Yiting Luo
- School of Economics and Management, Changsha University of Science and Technology, Changsha 410114, China and School of Business, Hunan First Normal University, Changsha, 410205, China
| | - Rongkui Su
- School of Environmental Science and Engineering, Central South University of Forestry and Technology, Changsha, 410004, China.
| | - Hongming Yang
- School of Electrical and Information Engineering, Changsha University of Science and Technology, Changsha 410114, China
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Konrádová D, Bon DJYD, Pospíšil J. 1-(Phenylsulfonyl)-3-oxabicyclo[3.1.0]hexan-2-one as a Building Block in Organic Synthesis. J Org Chem 2018; 83:12229-12238. [PMID: 30188126 DOI: 10.1021/acs.joc.8b01625] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
The transformation of the readily available phenylsulfonyl lactone building block to structurally diverse molecular scaffolds is described. Depicted structures are accessed in one to three steps, and their overall yields are high. The rigidity of the starting building block greatly directs the stereoselectivity of the transformations, and newly generated stereogenic centers including the quaternary carbon centers are formed with high stereoselectivity generally superior to dr > 95:1.
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Affiliation(s)
- Daniela Konrádová
- Laboratory of Growth Regulators , Palacky University & Institute of Experimental Botany AS CR , Šlechtitelů 27 , CZ-783 71 Olomouc , Czech Republic
| | - David Jean-Yves Denis Bon
- Department of Organic Chemistry, Faculty of Science , Palacky University , tř. 17. listopadu 1192/12 , CZ-771 46 Olomouc , Czech republic
| | - Jiří Pospíšil
- Laboratory of Growth Regulators , Palacky University & Institute of Experimental Botany AS CR , Šlechtitelů 27 , CZ-783 71 Olomouc , Czech Republic.,Department of Organic Chemistry, Faculty of Science , Palacky University , tř. 17. listopadu 1192/12 , CZ-771 46 Olomouc , Czech republic
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Synthesis of Chiral, Enantiopure Allylic Amines by the Julia Olefination of α-Amino Esters. Molecules 2016; 21:molecules21060805. [PMID: 27338326 PMCID: PMC6273449 DOI: 10.3390/molecules21060805] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2016] [Revised: 06/14/2016] [Accepted: 06/14/2016] [Indexed: 11/17/2022] Open
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Řehová L, Dračínský M, Jahn U. A general approach to iridoids by applying a new Julia olefination and a tandem anion-radical-carbocation crossover reaction. Org Biomol Chem 2016; 14:9612-9621. [DOI: 10.1039/c6ob01599a] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An efficient asymmetric approach to dihydronepetalactone and dolicholactone is presented featuring a Julia olefination and an anion–radical–cation crossover reaction.
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Affiliation(s)
- Lucie Řehová
- Institute of Organic Chemistry and Biochemistry
- Czech Academy of Sciences
- 16610 Prague 6
- Czech Republic
| | - Martin Dračínský
- Institute of Organic Chemistry and Biochemistry
- Czech Academy of Sciences
- 16610 Prague 6
- Czech Republic
| | - Ullrich Jahn
- Institute of Organic Chemistry and Biochemistry
- Czech Academy of Sciences
- 16610 Prague 6
- Czech Republic
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Dar AA, Enjamuri N, Shadab M, Ali N, Khan AT. Synthesis of Unsymmetrical Sulfides and Their Oxidation to Sulfones to Discover Potent Antileishmanial Agents. ACS COMBINATORIAL SCIENCE 2015; 17:671-81. [PMID: 26441303 DOI: 10.1021/acscombsci.5b00044] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Unsymmetrical sulfides were first synthesized using combinations of a 1,3-dicarbonyl, an aromatic aldehyde and a thiol in the presence of 10 mol % ethanolic piperidine. These sulfides derivatives were subsequently converted into corresponding sulfones via oxidation in the presence of m-chloroperoxybenzoic acid (m-CPBA) at ice-bath to room temperature. The former reaction was achieved at room temperature through one-pot three-component. The later was obtained in good yields using mild reaction conditions with flexibility in choice from a range of substrates. The antimicrobial properties of the newly synthesized sulfone derivatives were investigated against the protozoan parasite, Leishmania donovani, a causative agent of visceral leishmaniasis (VL). Nine sulfone derivatives were found to be efficacious and exhibited significant antimicrobial activity. Further, these compounds were nontoxic on murine peritoneal macrophages thus eliminating potential cytoxicity in the host cells. These compounds may be indicated as potential leads in the treatment of visceral leishmaniasis.
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Affiliation(s)
- Ajaz A. Dar
- Department
of Chemistry, Indian Institute of Technology Guwahati, Guwahati 781 039, India
| | - Nagasuresh Enjamuri
- Department
of Chemistry, Indian Institute of Technology Guwahati, Guwahati 781 039, India
| | | | - Nahid Ali
- Infectious
Diseases and Immunology Division, Indian Institute of Chemical Biology, 4, Raja S.C. Mullick Road, Kolkata 700 032, India
| | - Abu T. Khan
- Department
of Chemistry, Indian Institute of Technology Guwahati, Guwahati 781 039, India
- Aliah University, IIA/27, New
Town, Kolkata-700 156, West Bengal, India
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Mahamulkar SG, Císařová I, Jahn U. The Lithiation Reactivity and Selectivity of Differentially Branched Alkyldiphenylphosphine Oxides - A Simple and Versatile Approach toortho-Functionalized Arylphosphine Oxides. Adv Synth Catal 2015. [DOI: 10.1002/adsc.201400861] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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Margraf N, Manolikakes G. One-Pot Synthesis of Aryl Sulfones from Organometallic Reagents and Iodonium Salts. J Org Chem 2015; 80:2582-600. [DOI: 10.1021/jo5027518] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Natalie Margraf
- Department of Organic Chemistry
and Chemical Biology, Goethe University Frankfurt, Frankfurt am Main, Germany
| | - Georg Manolikakes
- Department of Organic Chemistry
and Chemical Biology, Goethe University Frankfurt, Frankfurt am Main, Germany
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Řehová L, Jahn U. Elucidation of the Reaction Mechanism ofortho→α Transmetalation Reactions of Alkyl Aryl Sulfone Carbanions. European J Org Chem 2014. [DOI: 10.1002/ejoc.201402171] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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