1
|
Wang J, Wu J, Li R, Wang K, Xu S, Wu J, Wu F. Semipinacol Rearrangement of Iododifluorohomoallyl Alcohols and Its Application in the Allylic C-H Esterification Reactions. J Org Chem 2024; 89:3111-3122. [PMID: 38343173 DOI: 10.1021/acs.joc.3c02559] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/02/2024]
Abstract
We herein present a study on the Ag(I)-mediated semipinacol rearrangement of iododifluorohomoallyl alcohols, the resulting allylic difluoromethyl ketones underwent oxidative allylic C-H esterification under palladium catalysis in the absence of external ligand. This process yielded a range of difluoromethyl ketones derived from allyl esters in a single operation. The reaction features broad scope of o-nitrobenzoic acids and homoallylic iododifluoroalcohols affording the targeted molecules in synthetically useful yields. Control experiments illustrated that the silver salt acted as not only a Lewis acid to promote the cleavage of a C-I bond and furnish the semipinacol rearrangement but also a co-oxidant in the catalytic cycle for the allylic C-H esterification.
Collapse
Affiliation(s)
- Junqi Wang
- Shanghai Engineering Research Center of Green Fluoropharmaceutical Technology, School of Chemical and Environmental Engineering, Shanghai Institute of Technology, Shanghai 201418, China
| | - Jihong Wu
- Shanghai Engineering Research Center of Green Fluoropharmaceutical Technology, School of Chemical and Environmental Engineering, Shanghai Institute of Technology, Shanghai 201418, China
| | - Ruowen Li
- Shanghai Engineering Research Center of Green Fluoropharmaceutical Technology, School of Chemical and Environmental Engineering, Shanghai Institute of Technology, Shanghai 201418, China
| | - Kaiji Wang
- Shanghai Engineering Research Center of Green Fluoropharmaceutical Technology, School of Chemical and Environmental Engineering, Shanghai Institute of Technology, Shanghai 201418, China
| | - Shibo Xu
- Shanghai Engineering Research Center of Green Fluoropharmaceutical Technology, School of Chemical and Environmental Engineering, Shanghai Institute of Technology, Shanghai 201418, China
| | - Jingjing Wu
- Shanghai Engineering Research Center of Green Fluoropharmaceutical Technology, School of Chemical and Environmental Engineering, Shanghai Institute of Technology, Shanghai 201418, China
| | - Fanhong Wu
- Shanghai Engineering Research Center of Green Fluoropharmaceutical Technology, School of Chemical and Environmental Engineering, Shanghai Institute of Technology, Shanghai 201418, China
| |
Collapse
|
2
|
Genaev AM, Salnikov GE, Koltunov KY. DFT insights into superelectrophilic activation of α,β-unsaturated nitriles and ketones in superacids. Org Biomol Chem 2022; 20:6799-6808. [PMID: 35959855 DOI: 10.1039/d2ob01141g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Superelectrophilic activation of α,β-unsaturated carbonyl compounds and their isoelectronic analogs, proceeding normally under superacidic conditions, have led to a great variety of beneficial synthetic transformations. However, the essence of such activation is not yet fully recognized, while a number of alternative views on the subject have been discussed at length in the literature. Here, taking the example of virtual reactions of cinnamonitrile and benzalacetone with benzene, their feasible mechanistic variants, including multiple protonation (coordination to AlCl3) of the reactants, were analyzed based on density functional theory (DFT). It is revealed that the most plausible reaction pathways involve the initial N- or O-protonation (coordination to AlCl3) of the activated compounds followed by subsequent protonation on the α-C-atom. Dicationic superelectrophiles thus formed ensure practically barrier-free reactions with benzene in addition to a more favorable energetic profile of their generating, which is in marked contrast to other potential reaction pathways.
Collapse
Affiliation(s)
- Alexander M Genaev
- Vorozhtsov Novosibirsk Institute of Organic Chemistry, Pr. Lavrentieva 9, Novosibirsk, 630090, Russia.
| | - George E Salnikov
- Vorozhtsov Novosibirsk Institute of Organic Chemistry, Pr. Lavrentieva 9, Novosibirsk, 630090, Russia.
| | | |
Collapse
|
3
|
Cantin T, Morgenstern Y, Mingot A, Kornath A, Thibaudeau S. Evidence and exploitation of dicationic ammonium-nitrilium superelectrophiles: direct synthesis of unsaturated piperidinones. Chem Commun (Camb) 2020; 56:11110-11113. [PMID: 32812972 DOI: 10.1039/d0cc02910f] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Exploiting superacid activation, the reactivity of aminonitriles was enhanced through the transient formation of highly reactive ammonium-nitrilium superelectrophiles. Demonstrated by using in situ low-temperature NMR experiments and confirmed by X-ray diffraction analysis, these dications can be intramolecularly trapped by non-activated alkenes to generate unsaturated piperidinones, including enantioenriched ones, in a straightforward way.
Collapse
Affiliation(s)
- Thomas Cantin
- Université de Poitiers, IC2MP UMR CNRS 7285/Superacid Group - Organic Synthesis Team/4 rue Michel Brunet, 86073 Poitiers cedex 9, France.
| | | | | | | | | |
Collapse
|
4
|
Gorbunova Y, Zakusilo DN, Boyarskaya IA, Vasilyev AV. Reactions of 3-arylpropenenitriles with arenes under superelectrophilic activation conditions: Hydroarylation of the carbon-carbon double bond followed by cyclization into 3-arylindanones. Tetrahedron 2020. [DOI: 10.1016/j.tet.2020.131264] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
|
5
|
Yi X, Cao YF, Wang X, Xu H, Ban SR, Dai HX. Palladium-catalyzed fluoroacylation of (Hetero)arylboronic acid with fluorothioacetates at ambient temperature. Tetrahedron Lett 2020. [DOI: 10.1016/j.tetlet.2020.151780] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
|
6
|
Gorbunova Y, Zakusilo DN, Vasilyev AV. Cinnamonitrile as a precursor of a bi-centered electrophile in reactions with arenes in triflic acid. Tetrahedron Lett 2019. [DOI: 10.1016/j.tetlet.2019.02.047] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
|
7
|
Chen X, Zhou Y, Hong M, Ling Y, Yin D, Wang S, Zhang X, Rao W. Gold(I)-Catalyzed Tandem Cycloisomerization and Fluorination of 1,3(4)-Enyne Esters with NFSI: One-Pot Assembly of 5-Fluoro- Cyclopentenones. Adv Synth Catal 2018. [DOI: 10.1002/adsc.201800701] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Affiliation(s)
- Xianxiao Chen
- Jiangsu Key Laboratory of Biomass-based Green Fuels and Chemicals, College of Chemical Engineering; Nanjing Forestry University; Nanjing 210037 People's Republic of China
| | - Yuanyuan Zhou
- Jiangsu Key Laboratory of Biomass-based Green Fuels and Chemicals, College of Chemical Engineering; Nanjing Forestry University; Nanjing 210037 People's Republic of China
| | - Mei Hong
- Jiangsu Key Laboratory of Biomass-based Green Fuels and Chemicals, College of Chemical Engineering; Nanjing Forestry University; Nanjing 210037 People's Republic of China
| | - Yuan Ling
- Jiangsu Key Laboratory of Biomass-based Green Fuels and Chemicals, College of Chemical Engineering; Nanjing Forestry University; Nanjing 210037 People's Republic of China
| | - Dongliang Yin
- Jiangsu Key Laboratory of Biomass-based Green Fuels and Chemicals, College of Chemical Engineering; Nanjing Forestry University; Nanjing 210037 People's Republic of China
| | - Shifa Wang
- Jiangsu Key Laboratory of Biomass-based Green Fuels and Chemicals, College of Chemical Engineering; Nanjing Forestry University; Nanjing 210037 People's Republic of China
| | - Xiaoxiang Zhang
- Jiangsu Key Laboratory of Biomass-based Green Fuels and Chemicals, College of Chemical Engineering; Nanjing Forestry University; Nanjing 210037 People's Republic of China
| | - Weidong Rao
- Jiangsu Key Laboratory of Biomass-based Green Fuels and Chemicals, College of Chemical Engineering; Nanjing Forestry University; Nanjing 210037 People's Republic of China
| |
Collapse
|
8
|
Affiliation(s)
- Graham Pattison
- Department of Chemistry; University of Warwick; Gibbet Hill Road Coventry UK
| |
Collapse
|
9
|
Kazakova AN, Vasilyev AV. Trifluoromethanesulfonic acid in organic synthesis. RUSSIAN JOURNAL OF ORGANIC CHEMISTRY 2017. [DOI: 10.1134/s1070428017040017] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
|
10
|
Electrocatalytic synthesis of nitriles from aldehydes with ammonium acetate as the nitrogen source. Electrochim Acta 2017. [DOI: 10.1016/j.electacta.2016.12.168] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
|
11
|
Li YL, Li J, Deng J. Practical Access to Difluoromethyl Ketones via Straightforward Decarboxylative Difluorination of β-Ketoacids. Adv Synth Catal 2017. [DOI: 10.1002/adsc.201601315] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Yin-Long Li
- School of Pharmaceutical Science and Technology; Key Laboratory for Modern Drug Delivery & High-Efficiency; Tianjin University; Tianjin 300072 People's Republic of China
| | - Jian Li
- School of Pharmaceutical Science and Technology; Key Laboratory for Modern Drug Delivery & High-Efficiency; Tianjin University; Tianjin 300072 People's Republic of China
| | - Jun Deng
- School of Pharmaceutical Science and Technology; Key Laboratory for Modern Drug Delivery & High-Efficiency; Tianjin University; Tianjin 300072 People's Republic of China
- School of Pharmaceutical Sciences and Innovative Drug Research Centre; Chongqing University; 55 Daxuecheng South Road, Shapingba Chongqing 401331 People's Republic of China
| |
Collapse
|
12
|
Chatupheeraphat A, Soorukram D, Kuhakarn C, Tuchinda P, Reutrakul V, Pakawatchai C, Saithong S, Pohmakotr M. Synthesis ofgem-Difluoromethylenated Spiro-γ-butyrolactones by Employing PhSCF2Si(CH3)3as agem-Difluoromethylenating Agent. European J Org Chem 2013. [DOI: 10.1002/ejoc.201300998] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
|
13
|
Borzęcka W, Lavandera I, Gotor V. Synthesis of Enantiopure Fluorohydrins Using Alcohol Dehydrogenases at High Substrate Concentrations. J Org Chem 2013; 78:7312-7. [DOI: 10.1021/jo400962c] [Citation(s) in RCA: 54] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Wioleta Borzęcka
- Departamento de Química Orgánica e Inorgánica, University of Oviedo, C/Julián Clavería
8, 33006 Oviedo, Spain
| | - Iván Lavandera
- Departamento de Química Orgánica e Inorgánica, University of Oviedo, C/Julián Clavería
8, 33006 Oviedo, Spain
| | - Vicente Gotor
- Departamento de Química Orgánica e Inorgánica, University of Oviedo, C/Julián Clavería
8, 33006 Oviedo, Spain
| |
Collapse
|
14
|
Mandal M, Lavey C, Buevich AV, Zhu Z, Stamford AW, Liu X. On the power of super acid—iodination of aromatic ring in the presence of imidazole moiety of the potent gamma secretase modulators (GSM) en route to tritium labeling. Tetrahedron Lett 2012. [DOI: 10.1016/j.tetlet.2012.01.085] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
|