1
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Krivdin LB. Computational NMR of charged systems. MAGNETIC RESONANCE IN CHEMISTRY : MRC 2022; 60:8-79. [PMID: 34355823 DOI: 10.1002/mrc.5201] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/10/2021] [Revised: 07/31/2021] [Accepted: 08/02/2021] [Indexed: 06/13/2023]
Abstract
This review covers NMR computational aspects of charged systems-carbocations, heterocations, and heteroanions, which were extensively studied in a number of laboratories worldwide, first of all, at the Loker Hydrocarbon Research Institute in California directed for several decades by a distinguished scientist, the Nobel laureate George Andrew Olah. The first part of the review briefly outlines computational background of the modern theoretical methods applied to the calculation of chemical shifts and spin-spin coupling constants at the DFT and the non-empirical levels. The second part of the review deals with the historical results, advances, and perspectives of the computational NMR of classical carbocations like methyl cation, CH3+ , and protonated methane, CH5+ , together with their numerous homologs and derivatives. The third and the forth parts of this survey are focused on the NMR computational aspects of accordingly, heterocations and heteroanions, the organic and inorganic ions with a charge localized mainly on heteroatoms like boron, oxygen, nitrogen, and heavier elements.
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Affiliation(s)
- Leonid B Krivdin
- A. E. Favorsky Irkutsk Institute of Chemistry, Siberian Branch of the Russian Academy of Sciences, Irkutsk, Russia
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2
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Zhu P, Sun X, Wang Y, Zhang J, Gu X, Zheng Z. Multifunctional oxygen vacancies in WO3– for catalytic alkylation of C–H by alcohols under red-light. J Catal 2021. [DOI: 10.1016/j.jcat.2021.08.040] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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3
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Song L, Ni D, Han W, Tang J, Yang F, Liu S. FeTPPCl/FeCl 3 Co-Catalyzed One-Pot Green Synthesis of α-Diaryl-β-alkynol Derivatives via Propargylic Carbocation Chemistry. J Org Chem 2021; 86:9306-9316. [PMID: 34228462 DOI: 10.1021/acs.joc.1c00474] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
A green and highly efficient one-pot method for α-diaryl-β-alkynol derivatives in water at room temperature was developed using the cocatalysis of a Lewis acid and meso-tetraphenylporphyrin iron(III) chloride (FeTPPCl). The unprecedented transformation was promoted by a modulation of the charge properties of propargylic carbocation chemistry and the use of an in situ-generated oxonium ylide as a matching nucleophile. The reaction was performed in water at room temperature with a highly step-economic manipulation in good to excellent yields and with a broad substrate scope. Water also acts as the third reactant for the one-pot transformation. Notably, the FeTPPCl catalyst can be directly reused four times with a slight discount in yields.
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Affiliation(s)
- Longlong Song
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development, School of Chemistry and Chemical Engineering, East China Normal University, 3663 North Zhongshan Road, Shanghai 200062, China
| | - Dan Ni
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development, School of Chemistry and Chemical Engineering, East China Normal University, 3663 North Zhongshan Road, Shanghai 200062, China
| | - Wangyujing Han
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development, School of Chemistry and Chemical Engineering, East China Normal University, 3663 North Zhongshan Road, Shanghai 200062, China
| | - Jie Tang
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development, School of Chemistry and Chemical Engineering, East China Normal University, 3663 North Zhongshan Road, Shanghai 200062, China
| | - Fan Yang
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development, School of Chemistry and Chemical Engineering, East China Normal University, 3663 North Zhongshan Road, Shanghai 200062, China
| | - Shunying Liu
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development, School of Chemistry and Chemical Engineering, East China Normal University, 3663 North Zhongshan Road, Shanghai 200062, China
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4
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Hong SY, Kim D, Chang S. Catalytic access to carbocation intermediates via nitrenoid transfer leading to allylic lactams. Nat Catal 2020. [DOI: 10.1038/s41929-020-00558-x] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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5
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Babaahmadi R, Jalali M, Smith JA, Yates BF, Ariafard A. How a Bismuth(III) Catalyst Achieves Greatest Activation of Organic Lewis Bases in a Catalytic Reaction: Insights from DFT Calculations. ChemCatChem 2020. [DOI: 10.1002/cctc.202001688] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Rasool Babaahmadi
- School of Natural Sciences (Chemistry) University of Tasmania Private Bag 75 Hobart TAS 7001 Australia
| | - Mona Jalali
- School of Natural Sciences (Chemistry) University of Tasmania Private Bag 75 Hobart TAS 7001 Australia
| | - Jason A. Smith
- School of Natural Sciences (Chemistry) University of Tasmania Private Bag 75 Hobart TAS 7001 Australia
| | - Brian F. Yates
- School of Natural Sciences (Chemistry) University of Tasmania Private Bag 75 Hobart TAS 7001 Australia
| | - Alireza Ariafard
- School of Natural Sciences (Chemistry) University of Tasmania Private Bag 75 Hobart TAS 7001 Australia
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6
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Tsuji H, Kawatsura M. Transition‐Metal‐Catalyzed Propargylic Substitution of Propargylic Alcohol Derivatives Bearing an Internal Alkyne Group. ASIAN J ORG CHEM 2020. [DOI: 10.1002/ajoc.202000422] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Hiroaki Tsuji
- Department of Chemistry, College of Humanities & Sciences Nihon University Sakurajosui, Setagaya-ku Tokyo 156-8550 Japan
| | - Motoi Kawatsura
- Department of Chemistry, College of Humanities & Sciences Nihon University Sakurajosui, Setagaya-ku Tokyo 156-8550 Japan
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8
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Sakata K, Nishibayashi Y. Mechanism and reactivity of catalytic propargylic substitution reactions via metal–allenylidene intermediates: a theoretical perspective. Catal Sci Technol 2018. [DOI: 10.1039/c7cy01382e] [Citation(s) in RCA: 68] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The mechanism and reactivity of transition metal-catalyzed propargylic substitution reactions are summarized from a theoretical point of view.
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Affiliation(s)
- Ken Sakata
- Faculty of Pharmaceutical Sciences
- Hoshi University
- Ebara
- Tokyo 142-8501
- Japan
| | - Yoshiaki Nishibayashi
- Department of Systems Innovation
- School of Engineering
- The University of Tokyo
- Tokyo 113-8656
- Japan
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9
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Chen JQ, Chang R, Wei YL, Mo JN, Wang ZY, Xu PF. Direct Decarboxylative–Decarbonylative Alkylation of α-Oxo Acids with Electrophilic Olefins via Visible-Light Photoredox Catalysis. J Org Chem 2017; 83:253-259. [DOI: 10.1021/acs.joc.7b02628] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Jian-Qiang Chen
- State Key Laboratory of Applied
Organic Chemistry, Lanzhou University, Lanzhou, 730000, P. R. China
| | - Rui Chang
- State Key Laboratory of Applied
Organic Chemistry, Lanzhou University, Lanzhou, 730000, P. R. China
| | - Yun-Long Wei
- State Key Laboratory of Applied
Organic Chemistry, Lanzhou University, Lanzhou, 730000, P. R. China
| | - Jia-Nan Mo
- State Key Laboratory of Applied
Organic Chemistry, Lanzhou University, Lanzhou, 730000, P. R. China
| | - Zhu-Yin Wang
- State Key Laboratory of Applied
Organic Chemistry, Lanzhou University, Lanzhou, 730000, P. R. China
| | - Peng-Fei Xu
- State Key Laboratory of Applied
Organic Chemistry, Lanzhou University, Lanzhou, 730000, P. R. China
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10
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Andreev VP, Ryzhakov AV, Sobolev PS. Kinetics of the reaction of N,N-dimethylaniline with 1-bromoalk-2-ynes. RUSS J GEN CHEM+ 2017. [DOI: 10.1134/s1070363217070076] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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11
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Catalytic Carbocation Generation Enabled by the Mesolytic Cleavage of Alkoxyamine Radical Cations. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201604619] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
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12
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Zhu Q, Gentry EC, Knowles RR. Catalytic Carbocation Generation Enabled by the Mesolytic Cleavage of Alkoxyamine Radical Cations. Angew Chem Int Ed Engl 2016; 55:9969-73. [PMID: 27403637 DOI: 10.1002/anie.201604619] [Citation(s) in RCA: 62] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2016] [Indexed: 01/11/2023]
Abstract
A new catalytic method is described to access carbocation intermediates via the mesolytic cleavage of alkoxyamine radical cations. In this process, electron transfer between an excited state oxidant and a TEMPO-derived alkoxyamine substrate gives rise to a radical cation with a remarkably weak C-O bond. Spontaneous scission results in the formation of the stable nitroxyl radical TEMPO(.) as well as a reactive carbocation intermediate that can be intercepted by a wide range of nucleophiles. Notably, this process occurs under neutral conditions and at comparatively mild potentials, enabling catalytic cation generation in the presence of both acid sensitive and easily oxidized nucleophilic partners.
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Affiliation(s)
- Qilei Zhu
- Department of Chemistry, Princeton University, Princeton, New Jersey, 08544, USA
| | - Emily C Gentry
- Department of Chemistry, Princeton University, Princeton, New Jersey, 08544, USA
| | - Robert R Knowles
- Department of Chemistry, Princeton University, Princeton, New Jersey, 08544, USA.
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13
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Domagalska J, Pyta K, Przybylski P. Conversion of leucomycin-A3 antibiotic into novel triazole analogues via regio- and diastereoselective SN1′ substitution with allylic rearrangement and 1,3-dipolar cycloaddition of CuAAC type. Tetrahedron Lett 2016. [DOI: 10.1016/j.tetlet.2016.02.113] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
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14
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15
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Hu F, Patel M, Luo F, Flach C, Mendelsohn R, Garfunkel E, He H, Szostak M. Graphene-Catalyzed Direct Friedel–Crafts Alkylation Reactions: Mechanism, Selectivity, and Synthetic Utility. J Am Chem Soc 2015; 137:14473-80. [DOI: 10.1021/jacs.5b09636] [Citation(s) in RCA: 133] [Impact Index Per Article: 14.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Feng Hu
- Department
of Chemistry, Rutgers University, 73 Warren Street, Newark, New Jersey 07102, United States
| | - Mehulkumar Patel
- Department
of Chemistry, Rutgers University, 73 Warren Street, Newark, New Jersey 07102, United States
| | - Feixiang Luo
- Department
of Chemistry and Chemical Biology, Rutgers University, 610 Taylor
Rd, Piscataway, New Jersey 08854, United States
| | - Carol Flach
- Department
of Chemistry, Rutgers University, 73 Warren Street, Newark, New Jersey 07102, United States
| | - Richard Mendelsohn
- Department
of Chemistry, Rutgers University, 73 Warren Street, Newark, New Jersey 07102, United States
| | - Eric Garfunkel
- Department
of Chemistry and Chemical Biology, Rutgers University, 610 Taylor
Rd, Piscataway, New Jersey 08854, United States
| | - Huixin He
- Department
of Chemistry, Rutgers University, 73 Warren Street, Newark, New Jersey 07102, United States
| | - Michal Szostak
- Department
of Chemistry, Rutgers University, 73 Warren Street, Newark, New Jersey 07102, United States
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16
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Nokami T, Yamane Y, Oshitani S, Kobayashi JK, Matsui SI, Nishihara T, Uno H, Hayase S, Itoh T. The β-Silyl Effect on the Memory of Chirality in Friedel-Crafts Alkylation Using Chiral α-Aryl Alcohols. Org Lett 2015; 17:3182-5. [PMID: 26067720 DOI: 10.1021/acs.orglett.5b01582] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Iron salt-catalyzed Friedel-Crafts alkylation of chiral α-aryl alcohols with a trimethylsilyl group was found to proceed with retention of the configuration of the hydroxyl group as a leaving group. The memory of chirality of this system stems from the β-silyl effect of the trimethylsilyl group on the carbocation intermediate.
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Affiliation(s)
| | | | | | | | | | | | - Hidemitsu Uno
- §Department of Chemistry and Biology, Graduate School of Science and Engineering, Ehime University, 2-5 Bunkyo-cho, Matsuyama City 790-8577, Ehime, Japan
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17
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Lavinda O, Tran VT, Woerpel KA. Effect of conformational rigidity on the stereoselectivity of nucleophilic additions to five-membered ring bicyclic oxocarbenium ion intermediates. Org Biomol Chem 2015; 12:7083-91. [PMID: 25087588 DOI: 10.1039/c4ob01251h] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Nucleophilic substitution reactions of five-membered ring acetals bearing fused rings reveal that subtle changes in the structure of the fused ring can exert dramatic influences on selectivity. If the fused ring did not constrain the five-membered ring undergoing substitution, selectivity was comparable to what was observed for an unconstrained system (≥92% diastereoselectivity, favoring the product of inside attack on the oxocarbenium ion). If the ring were more constrained by including at least one oxygen atom in the ring, selectivity dropped considerably (to 60% diastereoselectivity in one case). Transition states of the nucleophilic addition of allyltrimethylsilane to selected oxocarbenium ions were calculated using DFT methods. These computational models reproduced the correlation between additional conformational rigidity and selectivity.
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Affiliation(s)
- Olga Lavinda
- Department of Chemistry, New York University, New York, New York 10003, USA.
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18
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Lohr TL, Li Z, Assary RS, Curtiss LA, Marks TJ. Thermodynamically Leveraged Tandem Catalysis for Ester RC(O)O–R′ Bond Hydrogenolysis. Scope and Mechanism. ACS Catal 2015. [DOI: 10.1021/acscatal.5b00950] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Tracy L. Lohr
- Department
of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
| | - Zhi Li
- Department
of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
| | - Rajeev S. Assary
- Materials
Science Division, Argonne National Laboratory, Argonne, Illinois 60439, United States
| | - Larry A. Curtiss
- Materials
Science Division, Argonne National Laboratory, Argonne, Illinois 60439, United States
| | - Tobin J. Marks
- Department
of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
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19
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Dethe DH, Dherange BD. Enantioselective Total Syntheses of (+)-Hostmanin A, (−)-Linderol A, (+)-Methyllinderatin and Structural Reassignment of Adunctin E. J Org Chem 2015; 80:4526-31. [DOI: 10.1021/acs.joc.5b00331] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Dattatraya H. Dethe
- Department
of Chemistry, Indian Institute of Technology Kanpur, Kanpur-208016, India
| | - Balu D. Dherange
- Department
of Chemistry, Indian Institute of Technology Kanpur, Kanpur-208016, India
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20
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Naveen N, Koppolu SR, Balamurugan R. Silver Hexafluoroantimonate-Catalyzed Direct α-Alkylation of Unactivated Ketones. Adv Synth Catal 2015. [DOI: 10.1002/adsc.201400870] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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21
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Fu L, Niggemann M. Calcium-Catalyzed Carboarylation of Alkynes. Chemistry 2015; 21:6367-70. [DOI: 10.1002/chem.201406503] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2014] [Revised: 01/28/2015] [Indexed: 11/06/2022]
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22
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Luo T, Zhang R, Shen X, Zhang W, Ni C, Hu J. Brønsted acid-catalyzed 1,2-fluorine migration with fluoroepoxides. Dalton Trans 2015; 44:19636-41. [DOI: 10.1039/c5dt02088c] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
An efficient 1,2-fluorine migration reaction was realized under Brønsted acid catalysis in the absence of an external fluorinating source. The high fluorine atom economy and very mild conditions make this reaction a promising protocol for the construction of the C–F bond.
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Affiliation(s)
- Tao Luo
- Key Laboratory of Organofluorine Chemistry
- Shanghai Institute of Organic Chemistry
- Chinese Academy of Sciences
- Shanghai
- China
| | - Rui Zhang
- Key Laboratory of Organofluorine Chemistry
- Shanghai Institute of Organic Chemistry
- Chinese Academy of Sciences
- Shanghai
- China
| | - Xiao Shen
- Key Laboratory of Organofluorine Chemistry
- Shanghai Institute of Organic Chemistry
- Chinese Academy of Sciences
- Shanghai
- China
| | - Wei Zhang
- Key Laboratory of Organofluorine Chemistry
- Shanghai Institute of Organic Chemistry
- Chinese Academy of Sciences
- Shanghai
- China
| | - Chuanfa Ni
- Key Laboratory of Organofluorine Chemistry
- Shanghai Institute of Organic Chemistry
- Chinese Academy of Sciences
- Shanghai
- China
| | - Jinbo Hu
- Key Laboratory of Organofluorine Chemistry
- Shanghai Institute of Organic Chemistry
- Chinese Academy of Sciences
- Shanghai
- China
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23
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Okamoto N, Sueda T, Yanada R. Bi(OTf)3-Catalyzed Tandem Meyer–Schuster Rearrangement and 1,4-Addition to the Resulting Vinyl Ketone. J Org Chem 2014; 79:9854-9. [DOI: 10.1021/jo5017663] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Noriko Okamoto
- Faculty of Pharmaceutical
Sciences, Hiroshima International University, 5-1-1 Hirokoshingai, Kure, Hiroshima 737-0112, Japan
| | - Takuya Sueda
- Faculty of Pharmaceutical
Sciences, Hiroshima International University, 5-1-1 Hirokoshingai, Kure, Hiroshima 737-0112, Japan
| | - Reiko Yanada
- Faculty of Pharmaceutical
Sciences, Hiroshima International University, 5-1-1 Hirokoshingai, Kure, Hiroshima 737-0112, Japan
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24
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Nitsch D, Bach T. Bismuth(III) Triflate-Catalyzed Synthesis of Substituted 2-Alkenylfurans. J Org Chem 2014; 79:6372-9. [DOI: 10.1021/jo5009993] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Dominik Nitsch
- Lehrstuhl
für Organische
Chemie I and Catalysis Research Center (CRC), Technische Universität München, Lichtenbergstr. 4, 85747 Garching, Germany
| | - Thorsten Bach
- Lehrstuhl
für Organische
Chemie I and Catalysis Research Center (CRC), Technische Universität München, Lichtenbergstr. 4, 85747 Garching, Germany
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25
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Whitfield DM. In a glycosylation reaction how does a hydroxylic nucleophile find the activated anomeric carbon? Carbohydr Res 2014; 403:69-89. [PMID: 24962244 DOI: 10.1016/j.carres.2014.05.021] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2014] [Revised: 05/26/2014] [Accepted: 05/27/2014] [Indexed: 12/23/2022]
Abstract
The mechanism by which nucleophilic hydroxyls are attracted to activated glycopyranosyl donors is not known. Besides the intrinsic attraction of oxygen centred negative dipoles towards the developing electron deficiency at the anomeric carbon only a few suggestions have been given in the literature. By studying the effect on Density Functional Theory (DFT) modelled glycosylation reactions on the presence of polar additives as tested with acetonitrile two possible effects have been identified. One was noted in a previous publication (Carbohydr. Res.2012, 356, 180-190) and two further examples discovered here that suggest that a lone pair of a nucleophile approaching a donor with a β-leaving group from the α-face can act as the antiperiplanar lone pair that assists leaving group departure. This interaction starts at just under a nucleophile C-1 separation of 3Å and has an incipient bond angle of O-5-C-1-Nuc(O or N) of very close to 90° which can be at C-1 with the p-type orbital at C-1-O-5 of the incipient oxacarbenium ion, that is, the LUMO of the activated donor. The 2nd interaction is less well studied and is suggested to be a similar bonding interaction which moves β-face nucleophiles to O-Nuc-C-1-leaving groups angles close to 180°.
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Affiliation(s)
- Dennis M Whitfield
- National Research Council, Human Health Therapeutics, 100 Sussex Drive, Ottawa, ON K1A 0R6, Canada.
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26
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Chénard E, Hanessian S. Kinetic Diastereomer Differentiation in Au(III)- and Bi(III)-Catalyzed Benzylic Arylation: Concise and Stereocontrolled Synthesis of 2-Amino-1,1-diarylalkanes. Org Lett 2014; 16:2668-71. [DOI: 10.1021/ol500902p] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Affiliation(s)
- Etienne Chénard
- Department of Chemistry, Université de Montréal, C.P.
6128, Succ. Centre-Ville, Montréal, Québec H3C 3J7, Canada
| | - Stephen Hanessian
- Department of Chemistry, Université de Montréal, C.P.
6128, Succ. Centre-Ville, Montréal, Québec H3C 3J7, Canada
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