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Ermolaev NL, Fukin GK, Shavyrin AS, Lopatin MA, Kuznetsova OV, Kryzhkov DI, Ignatov SK, Chuhmanov EP, Berberova NT, Pashchenko KP. Tris(trifluoromethyl)germyl Biphenyl Conjugated Molecular System with Ferrocenyl Substituent: Confirmation of Photoinduced Intramolecular Charge Transfer to the Germanium Center. J Organomet Chem 2022. [DOI: 10.1016/j.jorganchem.2022.122535] [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]
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Tanaka D, Konishi A, Yasuda M. Synthesis and Catalytic Activity of Atrane-type Hard and Soft Lewis Superacids with a Silyl, Germyl, or Stannyl Cationic Center. Chem Asian J 2021; 16:3118-3123. [PMID: 34487429 DOI: 10.1002/asia.202100873] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2021] [Revised: 08/15/2021] [Indexed: 11/07/2022]
Abstract
The synthesis and isolation of atrane-type molecules 1E+ (E=Si, Ge, or Sn) having a cationic group 14 elemental center are reported. The cations 1E+ act as hard and soft Lewis superacids, which readily interact with various hard and soft Lewis basic substrates. The rigid atrane framework stabilizes the localized positive charge on the elemental center and assists the formation of the well-defined highly coordinated states of 1E+ . The cations were applied to the hydrodefluorination, Friedel-Crafts reaction, alkyne cyclization, and carbonyl reduction as Lewis acid catalysts. Most notably, [1Si][ClO4 ] exhibits unique chemoselectivity that depends on a solvent in the competitive reaction of silyl enol ether with a mixture of benzaldehyde dimethyl acetal and benzaldehyde. Our findings indicate the potential of hard and soft Lewis superacids in organic synthesis.
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Affiliation(s)
- Daiki Tanaka
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka, 565-0871, Japan
| | - Akihito Konishi
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka, 565-0871, Japan.,Center for Atomic and Molecular Technologies, Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka, 565-0871, Japan.,Innovative Catalysis Science Division, Institute for Open and Transdisciplinary Research Initiatives (ICS-OTRI), Osaka University, 2-1 Yamadaoka, Suita, Osaka, 565-0871, Japan
| | - Makoto Yasuda
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka, 565-0871, Japan.,Innovative Catalysis Science Division, Institute for Open and Transdisciplinary Research Initiatives (ICS-OTRI), Osaka University, 2-1 Yamadaoka, Suita, Osaka, 565-0871, Japan
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Jabbar ML, Kadhim KJ. Electronic Properties of Doped Graphene Nanoribbon and the Electron Distribution Contours: A DFT Study. RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY B 2021. [DOI: 10.1134/s1990793121010188] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Vishvakarma VK, Singh P, Kumar V, Kumari K, Patel R, Chandra R. Pyrrolothiazolones as Potential Inhibitors for the nsP2B‐nsP3 Protease of Dengue Virus and Their Mechanism of Synthesis. ChemistrySelect 2019. [DOI: 10.1002/slct.201901119] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Vijay Kumar Vishvakarma
- Department of ChemistryA.R.S.D. CollegeUniversity of Delhi, Delhi India
- Department of ChemistryUniversity of Delhi, Delhi India
| | - Prashant Singh
- Department of ChemistryA.R.S.D. CollegeUniversity of Delhi, Delhi India
| | - Vinod Kumar
- Department of ChemistryKirori Mal College, University of Delhi India
| | - Kamlesh Kumari
- Department of ZoologyDDU College, University of Delhi, Delhi India
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Shah A, Akhtar M, Aftab S, Shah AH, Kraatz HB. Gold copper alloy nanoparticles (Au-Cu NPs) modified electrode as an enhanced electrochemical sensing platform for the detection of persistent toxic organic pollutants. Electrochim Acta 2017. [DOI: 10.1016/j.electacta.2017.04.166] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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Carniato S, Journel L, Guillemin R, Piancastelli MN, Stolte WC, Lindle DW, Simon M. A new method to derive electronegativity from resonant inelastic x-ray scattering. J Chem Phys 2012; 137:144303. [DOI: 10.1063/1.4757065] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023] Open
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