1
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Shao Y, Ren Z, Han Z, Chen L, Li Y, Xue XS. Predicting bond dissociation energies of cyclic hypervalent halogen reagents using DFT calculations and graph attention network model. Beilstein J Org Chem 2024; 20:1444-1452. [PMID: 38952960 PMCID: PMC11216094 DOI: 10.3762/bjoc.20.127] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2024] [Accepted: 06/17/2024] [Indexed: 07/03/2024] Open
Abstract
Although hypervalent iodine(III) reagents have become staples in organic chemistry, the exploration of their isoelectronic counterparts, namely hypervalent bromine(III) and chlorine(III) reagents, has been relatively limited, partly due to challenges in synthesizing and stabilizing these compounds. In this study, we conduct a thorough examination of both homolytic and heterolytic bond dissociation energies (BDEs) critical for assessing the chemical stability and functional group transfer capability of cyclic hypervalent halogen compounds using density functional theory (DFT) analysis. A moderate linear correlation was observed between the homolytic BDEs across different halogen centers, while a strong linear correlation was noted among the heterolytic BDEs across these centers. Furthermore, we developed a predictive model for both homolytic and heterolytic BDEs of cyclic hypervalent halogen compounds using machine learning algorithms. The results of this study could aid in estimating the chemical stability and functional group transfer capabilities of hypervalent bromine(III) and chlorine(III) reagents, thereby facilitating their development.
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Affiliation(s)
- Yingbo Shao
- State Key Laboratory of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, P. R. China
| | - Zhiyuan Ren
- State Key Laboratory of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, P. R. China
| | - Zhihui Han
- State Key Laboratory of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, P. R. China
| | - Li Chen
- State Key Laboratory of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, P. R. China
| | - Yao Li
- Key Laboratory of Fluorine and Nitrogen Chemistry and Advanced Materials, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Shanghai 200032, P. R. China,
| | - Xiao-Song Xue
- Key Laboratory of Fluorine and Nitrogen Chemistry and Advanced Materials, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Shanghai 200032, P. R. China,
- School of Chemistry and Material Sciences, Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, Hangzhou 310024, P. R. China
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2
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Zhao P, Wang W, Gulder T. Hypervalent Fluoro-iodane-Triggered Semipinacol Rearrangements: Synthesis of α-Fluoro Ketones. Org Lett 2023; 25:6560-6565. [PMID: 37615672 DOI: 10.1021/acs.orglett.3c02384] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/25/2023]
Abstract
Hypervalent fluoro-λ3-iodanes have emerged as versatile reagents that provide unusual fluorination selectivities under mild reaction conditions. Here, we report on adding a semipinacol rearrangement, fluorination, and aryl migration cascade reaction of styrene derivatives. Thus, various cyclopentanones became accessible in up to 96% yield, all bearing tertiary C,F-carbon centers adjacent to the ketone group. Such fluorinated structural motifs are difficult to build with previously established methods. Preliminary experiments on enantioselective processes validated that asymmetric transformations are likewise feasible.
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Affiliation(s)
- Pengyuan Zhao
- Biomimetic Catalysis, Department of Chemistry, Technical University of Munich, Lichtenbergstrasse 4, 85748 Garching, Germany
- Institute of Organic Chemistry, Faculty of Chemistry and Mineralogy, Leipzig University, Johannisallee 29, 04103 Leipzig, Germany
| | - Wanying Wang
- Biomimetic Catalysis, Department of Chemistry, Technical University of Munich, Lichtenbergstrasse 4, 85748 Garching, Germany
| | - Tanja Gulder
- Biomimetic Catalysis, Department of Chemistry, Technical University of Munich, Lichtenbergstrasse 4, 85748 Garching, Germany
- Institute of Organic Chemistry, Faculty of Chemistry and Mineralogy, Leipzig University, Johannisallee 29, 04103 Leipzig, Germany
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3
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Theoretical Study on the Origin of Abnormal Regioselectivity in Ring-Opening Reaction of Hexafluoropropylene Oxide. Molecules 2023; 28:molecules28041669. [PMID: 36838653 PMCID: PMC9962681 DOI: 10.3390/molecules28041669] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2022] [Revised: 01/19/2023] [Accepted: 02/01/2023] [Indexed: 02/12/2023] Open
Abstract
That nucleophiles preferentially attack at the less sterically hindered carbon of epoxides under neutral and basic conditions has been generally accepted as a fundamental rule for predicting the regioselectivity of this type of reaction. However, this rule does not hold for perfluorinated epoxides, such as hexafluoropropylene oxide (HFPO), in which nucleophiles were found to attack at the more hindered CF3 substituted β-C rather than the fluorine substituted α-C. In this contribution, we aim to shed light on the nature of this intriguing regioselectivity by density functional theory methods. Our calculations well reproduced the observed abnormal regioselectivities and revealed that the unusual regiochemical preference for the sterically hindered β-C of HFPO mainly arises from the lower destabilizing distortion energy needed to reach the corresponding ring-opening transition state. The higher distortion energy required for the attack of the less sterically hindered α-C results from a significant strengthening of the C(α)-O bond by the negative hyperconjugation between the lone pair of epoxide O atom and the antibonding C-F orbital.
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4
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Computational insights into the effects of reagent structure and bases on nucleophilic monofluoromethylation of aldehydes. CHINESE CHEM LETT 2022. [DOI: 10.1016/j.cclet.2021.11.045] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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5
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Ren J, Jia MC, Du FH, Zhang C. A general method for one-step synthesis of monofluoroiodane(III) reagents using silver difluoride. CHINESE CHEM LETT 2022. [DOI: 10.1016/j.cclet.2022.01.070] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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6
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Ren J, Du FH, Jia MC, Hu ZN, Chen Z, Zhang C. Ring Expansion Fluorination of Unactivated Cyclopropanes Mediated by a New Monofluoroiodane(III) Reagent. Angew Chem Int Ed Engl 2021; 60:24171-24178. [PMID: 34523779 DOI: 10.1002/anie.202108589] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2021] [Revised: 09/03/2021] [Indexed: 11/08/2022]
Abstract
Herein, we report a new strategy for carbon-carbon bond scission and intramolecular ring expansion fluorination of unactivated cyclopropanes, which was accomplished with a new hypervalent fluoroiodane(III) reagent 1. This novel method delivers medicinally relevant 4-fully substituted fluoropiperidines in moderate to high yields with excellent regio- and diastereoselectivity. Reagent 1, which has an N-acetylbenziodazole framework, was readily synthesized via three steps in 76 % overall yield and was characterized by NMR spectroscopy and X-ray crystallography. Owing to the presence of a secondary I⋅⋅⋅O bonding interaction between the λ3 -iodane atom and the carbonyl oxygen of the acetyl group of the N-acetylbenziodazole framework, 1 has excellent stability and can be stored at ambient temperature for 6 months without any detectable decomposition. Density functional theory calculations and experimental studies showed that the reaction proceeds via a carbocation intermediate that readily combines with a fluoride ion to generate the product.
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Affiliation(s)
- Jing Ren
- State Key Laboratory of Elemento-Organic Chemistry, The Research Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, 94 Weijin Road, Tianjin, 300071, China
| | - Feng-Huan Du
- State Key Laboratory of Elemento-Organic Chemistry, The Research Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, 94 Weijin Road, Tianjin, 300071, China
| | - Meng-Cheng Jia
- State Key Laboratory of Elemento-Organic Chemistry, The Research Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, 94 Weijin Road, Tianjin, 300071, China
| | - Ze-Nan Hu
- State Key Laboratory of Elemento-Organic Chemistry, The Research Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, 94 Weijin Road, Tianjin, 300071, China
| | - Ze Chen
- State Key Laboratory of Elemento-Organic Chemistry, The Research Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, 94 Weijin Road, Tianjin, 300071, China
| | - Chi Zhang
- State Key Laboratory of Elemento-Organic Chemistry, The Research Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, 94 Weijin Road, Tianjin, 300071, China
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7
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Ren J, Du F, Jia M, Hu Z, Chen Z, Zhang C. Ring Expansion Fluorination of Unactivated Cyclopropanes Mediated by a New Monofluoroiodane(III) Reagent. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202108589] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Jing Ren
- State Key Laboratory of Elemento-Organic Chemistry The Research Institute of Elemento-Organic Chemistry College of Chemistry Nankai University 94 Weijin Road Tianjin 300071 China
| | - Feng‐Huan Du
- State Key Laboratory of Elemento-Organic Chemistry The Research Institute of Elemento-Organic Chemistry College of Chemistry Nankai University 94 Weijin Road Tianjin 300071 China
| | - Meng‐Cheng Jia
- State Key Laboratory of Elemento-Organic Chemistry The Research Institute of Elemento-Organic Chemistry College of Chemistry Nankai University 94 Weijin Road Tianjin 300071 China
| | - Ze‐Nan Hu
- State Key Laboratory of Elemento-Organic Chemistry The Research Institute of Elemento-Organic Chemistry College of Chemistry Nankai University 94 Weijin Road Tianjin 300071 China
| | - Ze Chen
- State Key Laboratory of Elemento-Organic Chemistry The Research Institute of Elemento-Organic Chemistry College of Chemistry Nankai University 94 Weijin Road Tianjin 300071 China
| | - Chi Zhang
- State Key Laboratory of Elemento-Organic Chemistry The Research Institute of Elemento-Organic Chemistry College of Chemistry Nankai University 94 Weijin Road Tianjin 300071 China
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8
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Robidas R, Legault CY. Cyclic Haloiodanes: Syntheses, Applications and Fundamental Studies. Helv Chim Acta 2021. [DOI: 10.1002/hlca.202100111] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Affiliation(s)
- Raphaël Robidas
- Department of Chemistry Université de Sherbrooke Sherbrooke Québec J1K 2R1 Canada
| | - Claude Y. Legault
- Department of Chemistry Université de Sherbrooke Sherbrooke Québec J1K 2R1 Canada
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9
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Zhang D, Shao Y, Zheng H, Zhou B, Xue XS. Mechanistic Study on the Bidentate Nitrogen-Ligated Iodine(V) Reagent Promoted Oxidative Dearomatization of Phenols. ACTA CHIMICA SINICA 2021. [DOI: 10.6023/a21080358] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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10
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Zheng H, Xue XS. Recent Computational Studies on Mechanisms of Hypervalent Iodine(III)-Promoted Dearomatization of Phenols. CURR ORG CHEM 2020. [DOI: 10.2174/1385272824999200620223218] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Hypervalent iodine-promoted dearomatization of phenols has received intense
attention. This mini-review summarizes recent computational mechanistic studies of phenolic
dearomatizations promoted by hypervalent iodine(III) reagents or catalysts. The first part
of this review describes mechanisms of racemic dearomatization of phenols, paying special
attention to the associative and dissociative pathways. The second part focuses on mechanisms
and selectivities of diastereo- or enantio-selective dearomatization of phenols.
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Affiliation(s)
- Hanliang Zheng
- College of Chemistry, Nankai University, Tianjin 300071, China
| | - Xiao-Song Xue
- College of Chemistry, Nankai University, Tianjin 300071, China
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11
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Mai BK, Himo F. Mechanisms of Metal-Catalyzed Electrophilic F/CF3/SCF3 Transfer Reactions from Quantum Chemical Calculations. TOP ORGANOMETAL CHEM 2020. [DOI: 10.1007/3418_2020_45] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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12
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Xu K, Yang R, Yang S, Jiang C, Ding Z. Hypervalent iodane mediated reactions of N-acetyl enamines for the synthesis of oxazoles and imidazoles. Org Biomol Chem 2019; 17:8977-8981. [PMID: 31576884 DOI: 10.1039/c9ob01895f] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
A hypervalent iodane reagent used for the intramolecular cyclization of N-acetyl enamines and intermolecular cyclocondensation of enamines and nitriles was investigated. The reaction was performed under mild conditions and gave oxazoles and imidazoles, respectively, in moderate to excellent yields. This transformation exhibits good reactivity, selectivity and functional group tolerance. The selectivity of the intra- or intermolecular reaction is dependent on the structure of N-acetyl enamines.
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Affiliation(s)
- Kang Xu
- Jiangsu Key Laboratory of Drug Design and Optimization, Department of Medicinal Chemistry, School of Pharmacy, China Pharmaceutical University, Nanjing 211198, China.
| | - Ruiqi Yang
- Jiangsu Key Laboratory of Drug Design and Optimization, Department of Medicinal Chemistry, School of Pharmacy, China Pharmaceutical University, Nanjing 211198, China.
| | - Shuang Yang
- Jiangsu Key Laboratory of Drug Design and Optimization, Department of Medicinal Chemistry, School of Pharmacy, China Pharmaceutical University, Nanjing 211198, China.
| | - Cheng Jiang
- Jiangsu Key Laboratory of Drug Design and Optimization, Department of Medicinal Chemistry, School of Pharmacy, China Pharmaceutical University, Nanjing 211198, China.
| | - Zhenhua Ding
- Jiangsu Key Laboratory of Drug Design and Optimization, Department of Medicinal Chemistry, School of Pharmacy, China Pharmaceutical University, Nanjing 211198, China.
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13
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Haj MK, Banik SM, Jacobsen EN. Catalytic, Enantioselective 1,2-Difluorination of Cinnamamides. Org Lett 2019; 21:4919-4923. [PMID: 30963766 DOI: 10.1021/acs.orglett.9b00938] [Citation(s) in RCA: 56] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The enantio- and diastereoselective synthesis of 1,2-difluorides via chiral aryl iodide-catalyzed difluorination of cinnamamides is reported. The method uses HF-pyridine as a fluoride source and mCPBA as a stoichiometric oxidant to turn over catalyst, and affords compounds containing vicinal, fluoride-bearing stereocenters. Selectivity for 1,2-difluorination versus a rearrangement pathway resulting in 1,1-difluorination is enforced through anchimeric assistance from a N- tert-butyl amide substituent.
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Affiliation(s)
- Moriana K Haj
- Department of Chemistry and Chemical Biology , Harvard University , Cambridge , Massachusetts 02138 , United States
| | - Steven M Banik
- Department of Chemistry and Chemical Biology , Harvard University , Cambridge , Massachusetts 02138 , United States
| | - Eric N Jacobsen
- Department of Chemistry and Chemical Biology , Harvard University , Cambridge , Massachusetts 02138 , United States
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14
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Shu S, Li Y, Jiang J, Ke Z, Liu Y. Mechanism of Hypervalent Iodine Promoted Fluorocyclization of Unsaturated Alcohols: Metathesis via Double Acids Activation. J Org Chem 2018; 84:458-462. [DOI: 10.1021/acs.joc.8b02741] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Affiliation(s)
- Siwei Shu
- School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou 510006, P. R. China
| | - Yinwu Li
- School of Materials Science and Engineering, PCFM Lab, Sun Yat-sen University, Guangzhou 510275, P. R. China
| | - Jingxing Jiang
- School of Materials Science and Engineering, PCFM Lab, Sun Yat-sen University, Guangzhou 510275, P. R. China
| | - Zhuofeng Ke
- School of Materials Science and Engineering, PCFM Lab, Sun Yat-sen University, Guangzhou 510275, P. R. China
| | - Yan Liu
- School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou 510006, P. R. China
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15
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Liu R, Tie Y, Zhao X, Zhu J, Zou J, Liu T. Mechanistic insight into the ruthenium-catalyzed cycloaddition of enynes with alkynes: A theoretical study. J Organomet Chem 2018. [DOI: 10.1016/j.jorganchem.2018.08.030] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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16
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Andries-Ulmer A, Brunner C, Rehbein J, Gulder T. Fluorine as a Traceless Directing Group for the Regiodivergent Synthesis of Indoles and Tryptophans. J Am Chem Soc 2018; 140:13034-13041. [DOI: 10.1021/jacs.8b08350] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Anna Andries-Ulmer
- Department of Chemistry and Catalysis Research Center (CRC), Technical University of Munich, Lichtenbergstraße 4, 85748 Garching, Germany
| | - Christoph Brunner
- Department of Chemistry and Catalysis Research Center (CRC), Technical University of Munich, Lichtenbergstraße 4, 85748 Garching, Germany
| | - Julia Rehbein
- Institute of Organic Chemistry, University of Regensburg, Universitätstraße 31, 93053 Regensburg, Germany
| | - Tanja Gulder
- Department of Chemistry and Catalysis Research Center (CRC), Technical University of Munich, Lichtenbergstraße 4, 85748 Garching, Germany
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17
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Mai BK, Szabó KJ, Himo F. Mechanisms of Rh-Catalyzed Oxyfluorination and Oxytrifluoromethylation of Diazocarbonyl Compounds with Hypervalent Fluoroiodine. ACS Catal 2018. [DOI: 10.1021/acscatal.8b00667] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Binh Khanh Mai
- Department of Organic Chemistry, Arrhenius Laboratory, Stockholm University, SE-106 91 Stockholm, Sweden
| | - Kálmán J. Szabó
- Department of Organic Chemistry, Arrhenius Laboratory, Stockholm University, SE-106 91 Stockholm, Sweden
| | - Fahmi Himo
- Department of Organic Chemistry, Arrhenius Laboratory, Stockholm University, SE-106 91 Stockholm, Sweden
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18
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Li M, Zheng H, Xue XS, Cheng JP. Ordering the relative power of electrophilic fluorinating, trifluoromethylating, and trifluoromethylthiolating reagents: A summary of recent efforts. Tetrahedron Lett 2018. [DOI: 10.1016/j.tetlet.2018.02.039] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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19
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Minhas HK, Riley W, Stuart AM, Urbonaite M. Activation of the hypervalent fluoroiodane reagent by hydrogen bonding to hexafluoroisopropanol. Org Biomol Chem 2018; 16:7170-7173. [DOI: 10.1039/c8ob02236d] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Hexafluoroisopropan-2-ol is an excellent solvent for promoting fluorinations with the stable hypervalent fluoroiodane reagent without any transition metals or TREAT-HF activators.
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Affiliation(s)
| | - William Riley
- Department of Chemistry
- University of Leicester
- Leicester
- UK
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20
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Li M, Xue XS, Cheng JP. Mechanism and Origins of Stereoinduction in Natural Cinchona Alkaloid Catalyzed Asymmetric Electrophilic Trifluoromethylthiolation of β-Keto Esters with N-Trifluoromethylthiophthalimide as Electrophilic SCF3 Source. ACS Catal 2017. [DOI: 10.1021/acscatal.7b03007] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Man Li
- State
Key Laboratory of Elemento-Organic Chemistry, College of Chemistry,
Collaborative Innovation Center of Chemical Science and Engineering, Nankai University, Tianjin 300071, People’s Republic of China
| | - Xiao-Song Xue
- State
Key Laboratory of Elemento-Organic Chemistry, College of Chemistry,
Collaborative Innovation Center of Chemical Science and Engineering, Nankai University, Tianjin 300071, People’s Republic of China
| | - Jin-Pei Cheng
- State
Key Laboratory of Elemento-Organic Chemistry, College of Chemistry,
Collaborative Innovation Center of Chemical Science and Engineering, Nankai University, Tianjin 300071, People’s Republic of China
- Center
of Basic Molecular Science, Department of Chemistry, Tsinghua University, Beijing 100084, People’s Republic of China
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21
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Nagata T, Matsubara H, Kiyokawa K, Minakata S. Catalytic Activation of 1-Cyano-3,3-dimethyl-3-(1H)-1,2-benziodoxole with B(C6F5)3 Enabling the Electrophilic Cyanation of Silyl Enol Ethers. Org Lett 2017; 19:4672-4675. [DOI: 10.1021/acs.orglett.7b02313] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Takaya Nagata
- Department of Applied Chemistry,
Graduate School of Engineering, Osaka University, Yamadaoka 2-1, Suita, Osaka 565-0871, Japan
| | - Hiroki Matsubara
- Department of Applied Chemistry,
Graduate School of Engineering, Osaka University, Yamadaoka 2-1, Suita, Osaka 565-0871, Japan
| | - Kensuke Kiyokawa
- Department of Applied Chemistry,
Graduate School of Engineering, Osaka University, Yamadaoka 2-1, Suita, Osaka 565-0871, Japan
| | - Satoshi Minakata
- Department of Applied Chemistry,
Graduate School of Engineering, Osaka University, Yamadaoka 2-1, Suita, Osaka 565-0871, Japan
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22
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Zhao Z, Racicot L, Murphy GK. Fluorinative Rearrangements of Substituted Phenylallenes Mediated by (Difluoroiodo)toluene: Synthesis of α-(Difluoromethyl)styrenes. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201706798] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Zhensheng Zhao
- Department of Chemistry; University of Waterloo; 200 University Ave. W Waterloo ON N2L3G1 Canada
| | - Léanne Racicot
- Department of Chemistry; University of Waterloo; 200 University Ave. W Waterloo ON N2L3G1 Canada
| | - Graham K. Murphy
- Department of Chemistry; University of Waterloo; 200 University Ave. W Waterloo ON N2L3G1 Canada
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23
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Zhao Z, Racicot L, Murphy GK. Fluorinative Rearrangements of Substituted Phenylallenes Mediated by (Difluoroiodo)toluene: Synthesis of α-(Difluoromethyl)styrenes. Angew Chem Int Ed Engl 2017; 56:11620-11623. [DOI: 10.1002/anie.201706798] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2017] [Indexed: 11/08/2022]
Affiliation(s)
- Zhensheng Zhao
- Department of Chemistry; University of Waterloo; 200 University Ave. W Waterloo ON N2L3G1 Canada
| | - Léanne Racicot
- Department of Chemistry; University of Waterloo; 200 University Ave. W Waterloo ON N2L3G1 Canada
| | - Graham K. Murphy
- Department of Chemistry; University of Waterloo; 200 University Ave. W Waterloo ON N2L3G1 Canada
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24
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Labattut A, Tremblay PL, Moutounet O, Legault CY. Experimental and Theoretical Quantification of the Lewis Acidity of Iodine(III) Species. J Org Chem 2017; 82:11891-11896. [DOI: 10.1021/acs.joc.7b01616] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- Axel Labattut
- Department of Chemistry, University of Sherbrooke, 2500 boul. de l’Université, Sherbrooke, Québec J1K 2R1, Canada
| | - Pierre-Luc Tremblay
- Department of Chemistry, University of Sherbrooke, 2500 boul. de l’Université, Sherbrooke, Québec J1K 2R1, Canada
| | - Odile Moutounet
- Department of Chemistry, University of Sherbrooke, 2500 boul. de l’Université, Sherbrooke, Québec J1K 2R1, Canada
| | - Claude Y. Legault
- Department of Chemistry, University of Sherbrooke, 2500 boul. de l’Université, Sherbrooke, Québec J1K 2R1, Canada
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25
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Yang JD, Wang Y, Xue XS, Cheng JP. A Systematic Evaluation of the N–F Bond Strength of Electrophilic N–F Reagents: Hints for Atomic Fluorine Donating Ability. J Org Chem 2017; 82:4129-4135. [DOI: 10.1021/acs.joc.7b00036] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Jin-Dong Yang
- State
Key Laboratory of Elemento-Organic Chemistry, Collaborative Innovation
Center of Chemical Science and Engineering, College of Chemistry, Nankai University, Tianjin 300071, China
| | - Ya Wang
- State
Key Laboratory of Elemento-Organic Chemistry, Collaborative Innovation
Center of Chemical Science and Engineering, College of Chemistry, Nankai University, Tianjin 300071, China
| | - Xiao-Song Xue
- State
Key Laboratory of Elemento-Organic Chemistry, Collaborative Innovation
Center of Chemical Science and Engineering, College of Chemistry, Nankai University, Tianjin 300071, China
| | - Jin-Pei Cheng
- State
Key Laboratory of Elemento-Organic Chemistry, Collaborative Innovation
Center of Chemical Science and Engineering, College of Chemistry, Nankai University, Tianjin 300071, China
- Center
of Basic Molecular Science, Department of Chemistry, Tsinghua University, Beijing 100084, China
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