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Treichel M, Tyler Womble C, Selhorst R, Gaitor J, Pathiranage TMSK, Kowalewski T, Noonan KJT. Exploring the Effects of Bulky Cations Tethered to Semicrystalline Polymers: The Case of Tetraaminophosphoniums with Ring-Opened Polynorbornenes. Macromolecules 2020. [DOI: 10.1021/acs.macromol.0c00422] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- Megan Treichel
- Department of Chemistry, Carnegie Mellon University, 4400 Fifth Ave, Pittsburgh, Pennsylvania 15213-2617, United States
| | - C. Tyler Womble
- Department of Chemistry, Carnegie Mellon University, 4400 Fifth Ave, Pittsburgh, Pennsylvania 15213-2617, United States
| | - Ryan Selhorst
- Department of Chemistry, Carnegie Mellon University, 4400 Fifth Ave, Pittsburgh, Pennsylvania 15213-2617, United States
| | - Jamie Gaitor
- Department of Chemistry, Carnegie Mellon University, 4400 Fifth Ave, Pittsburgh, Pennsylvania 15213-2617, United States
| | - Taniya M. S. K. Pathiranage
- Department of Chemistry, Carnegie Mellon University, 4400 Fifth Ave, Pittsburgh, Pennsylvania 15213-2617, United States
| | - Tomasz Kowalewski
- Department of Chemistry, Carnegie Mellon University, 4400 Fifth Ave, Pittsburgh, Pennsylvania 15213-2617, United States
| | - Kevin J. T. Noonan
- Department of Chemistry, Carnegie Mellon University, 4400 Fifth Ave, Pittsburgh, Pennsylvania 15213-2617, United States
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Womble CT, Kang J, Hugar KM, Coates GW, Bernhard S, Noonan KJT. Rapid Analysis of Tetrakis(dialkylamino)phosphonium Stability in Alkaline Media. Organometallics 2017. [DOI: 10.1021/acs.organomet.7b00663] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- C. Tyler Womble
- Department
of Chemistry, Carnegie Mellon University, 4400 Fifth Avenue, Pittsburgh, Pennsylvania 15213-2617, United States
| | - Jamie Kang
- Department
of Chemistry, Carnegie Mellon University, 4400 Fifth Avenue, Pittsburgh, Pennsylvania 15213-2617, United States
| | - Kristina M. Hugar
- Department
of Chemistry and Chemical Biology, Baker Laboratory, Cornell University, Ithaca, New York 14853-1301, United States
| | - Geoffrey W. Coates
- Department
of Chemistry and Chemical Biology, Baker Laboratory, Cornell University, Ithaca, New York 14853-1301, United States
| | - Stefan Bernhard
- Department
of Chemistry, Carnegie Mellon University, 4400 Fifth Avenue, Pittsburgh, Pennsylvania 15213-2617, United States
| | - Kevin J. T. Noonan
- Department
of Chemistry, Carnegie Mellon University, 4400 Fifth Avenue, Pittsburgh, Pennsylvania 15213-2617, United States
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Cokoja M, Reich RM, Kühn FE. N-alkyl ammonium perrhenate salts as catalysts for the epoxidation of olefins under mild conditions. CATAL COMMUN 2017. [DOI: 10.1016/j.catcom.2017.06.043] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022] Open
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Iali W, Olaru AM, Green GGR, Duckett SB. Achieving High Levels of NMR-Hyperpolarization in Aqueous Media With Minimal Catalyst Contamination Using SABRE. Chemistry 2017; 23:10491-10495. [PMID: 28609572 PMCID: PMC5582620 DOI: 10.1002/chem.201702716] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2017] [Indexed: 01/02/2023]
Abstract
Signal amplification by reversible exchange (SABRE) is shown to allow access to strongly enhanced 1H NMR signals in a range of substrates in aqueous media. To achieve this outcome, phase‐transfer catalysis is exploited, which leads to less than 1.5×10−6 mol dm−3 of the iridium catalyst in the aqueous phase. These observations reflect a compelling route to produce a saline‐based hyperpolarized bolus in just a few seconds for subsequent in vivo MRI monitoring. The new process has been called catalyst separated hyperpolarization through signal amplification by reversible exchange or CASH‐SABRE. We illustrate this method for the substrates pyrazine, 5‐methylpyrimidine, 4,6‐d2‐methyl nicotinate, 4,6‐d2‐nicotinamide and pyridazine achieving 1H signal gains of approximately 790‐, 340‐, 3000‐, 260‐ and 380‐fold per proton at 9.4 T at the time point at which phase separation is complete.
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Affiliation(s)
- Wissam Iali
- Department of Chemistry, University of York, Heslington, York, YO10 5DD, UK
| | - Alexandra M Olaru
- Department of Chemistry, University of York, Heslington, York, YO10 5DD, UK
| | - Gary G R Green
- York Neuroimaging Centre, The Biocentre, York Science Park Innovation Way, Heslington, York, YO10 5DD, UK
| | - Simon B Duckett
- Department of Chemistry, University of York, Heslington, York, YO10 5DD, UK
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Noh H, Yu JS, Ko J, Kim JM, Oh SG. Preparation of Poly(ethylene-co-acrylic acid) Grafted with Aliphatic Quaternary Ammonium Salts as Antibacterial Polymers. B KOREAN CHEM SOC 2017. [DOI: 10.1002/bkcs.11198] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Hongche Noh
- Department of Chemical Engineering; Hanyang University; Seoul 04763 Korea
| | - Ji-Soo Yu
- Department of Chemical Engineering; Hanyang University; Seoul 04763 Korea
| | | | | | - Seong-Geun Oh
- Department of Chemical Engineering; Hanyang University; Seoul 04763 Korea
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Ghildiyal N, Pant GJN, Rawat MSM, Singh K. Spectral investigation of the effect of anion on the stability of non covalent assemblies of 2,3,5,6,8,9,11,12-octahydro-1,4,7,10,13-benzopentaoxacyclopentadecine (benzo-15-crown-5) with sodium halides. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2017; 171:507-514. [PMID: 27591702 DOI: 10.1016/j.saa.2016.07.044] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/18/2016] [Revised: 06/19/2016] [Accepted: 07/30/2016] [Indexed: 06/06/2023]
Abstract
A series of complexes of 2,3,5,6,8,9,11,12-octahydro-1,4,7,10,13-benzopentaoxacyclopentadecine (benzo-15-crown-5) with sodium halides was synthesized in acetonitrile. The effect of anion on the stability and spectral properties of complexes of benzo-15-crown-5 with sodium halides was investigated. The synthesis of complexes of sodium fluoride and sodium chloride are reported for the first time. Chloroform was used as solvent to study the assembly in solution state by 1H and 13C NMR techniques. Single crystal diffraction studies on the easily crystallizable bromide complex confirmed 1:1 stoichiometry of the complex. IR and Raman studies provided valuable evidence for a water molecule shared between the crown encapsulated cation and the counter ion to give a solvent shared ion pair (SSIP). The fluorescence spectra of the complexes were obtained in chloroform by excitation at 270nm to study the effect of complexation on the fluorescent properties of benzo-15-crown-5.
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Affiliation(s)
- Namrata Ghildiyal
- Department of Chemistry, H. N. B. Garhwal University, Srinagar (Garhwal), Uttarakhand 246174, India.
| | - Geeta Joshi Nee Pant
- Department of Chemistry, H. N. B. Garhwal University, Srinagar (Garhwal), Uttarakhand 246174, India.
| | - M S M Rawat
- Department of Chemistry, H. N. B. Garhwal University, Srinagar (Garhwal), Uttarakhand 246174, India
| | - Khushboo Singh
- Department of Physics, H.N. B. Garhwal University, Srinagar (Garhwal), Uttarakhand 246174, India
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Huynh TLY, Poiroux K, O'Brien RA, West KN, Davis JH, West CW. Fusion and Thermal Degradation Behavior of Symmetric Sulfur-Containing Quaternary Ammonium Bromides. J Phys Chem B 2016; 120:1330-5. [PMID: 26849572 DOI: 10.1021/acs.jpcb.6b00747] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Quaternary ammonium salts are widely used in consumer products and industrial processes, where their instability at elevated temperatures limits their range of applications. In this work, the thermal behavior of a new class of quaternary ammonium salts was investigated using differential scanning calorimetry. These salts contain a sulfur atom in each chain at the fourth position from the central nitrogen and are thus termed thiaquats. The temperatures at which these salts melt and thermally degrade were determined, and enthalpies and entropies of fusion were evaluated. Their melting points increase with chain lengths, in contrast to the behavior of traditional quaternary ammonium salts. Furthermore, they exhibit enthalpies and entropies of fusion significantly lower than corresponding tetraalkyl analogues. These trends provide physical insight into the molecular-level behavior of these salts, suggesting that they do not fully dissociate upon melting. The thiaquats also exhibit thermal stability to markedly higher temperatures than traditional quaternary ammonium bromides, a phenomenon that can be explained in by strong pairing between the quaternary cation and bromide anion, which inhibits possible decomposition mechanisms. This enhanced thermal stability may enable applications of these salts in processes where traditional salts are not viable, such as phase-transfer-catalyzed systems performed at elevated temperatures.
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Affiliation(s)
- Thai L Y Huynh
- Department of Chemical and Biomolecular Engineering, University of South Alabama , Mobile, Alabama 36688, United States
| | - Kaitlyn Poiroux
- Department of Chemical and Biomolecular Engineering, University of South Alabama , Mobile, Alabama 36688, United States
| | - Richard A O'Brien
- Department of Chemistry, University of South Alabama , Mobile, Alabama 36688, United States
| | - Kevin N West
- Department of Chemical and Biomolecular Engineering, University of South Alabama , Mobile, Alabama 36688, United States
| | - James H Davis
- Department of Chemistry, University of South Alabama , Mobile, Alabama 36688, United States
| | - Christy Wheeler West
- Department of Chemical and Biomolecular Engineering, University of South Alabama , Mobile, Alabama 36688, United States
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9
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Tundo P, Venturello P, Angeletti E. Quaternary Onium Salts Immobilized on Inorganic Matrices. Isr J Chem 2013. [DOI: 10.1002/ijch.198500108] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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10
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Landini D, Maia A, Montanari F. Dehydrating Effect of Concentrated Aqueous Alkaline Solutions in Aliphatic Nucleophilic Substitutions Carried out in Aqueous-Organic Two-Phase Systems. The Different Behavior of Various Phase-Transfer Catalysts: Quaternary Salts, Crown Ethers and Cryptand. Isr J Chem 2013. [DOI: 10.1002/ijch.198500105] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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11
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Lin IJB, Shen HI. Syntheses and Reactions of Sulfur- and Phosphorus- Ylide Metal Complexes Promoted with Phase-Transfer Catalysts and Hydrolysis of Bis(diphenylphosphino)methane. J CHIN CHEM SOC-TAIP 2013. [DOI: 10.1002/jccs.199200092] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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12
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Sala GD, Nardone B, De Riccardis F, Izzo I. Cyclopeptoids: a novel class of phase-transfer catalysts. Org Biomol Chem 2013; 11:726-31. [DOI: 10.1039/c2ob26764k] [Citation(s) in RCA: 53] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
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13
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Pozzi G, Fish RH. Fluoroponytailed crown ethers and quaternary ammonium salts as solid-liquid phase transfer catalysts in organic synthesis. Top Curr Chem (Cham) 2011; 308:213-32. [PMID: 21928010 DOI: 10.1007/128_2011_240] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Abstract
Fluorous derivatives of dibenzo-18-crown-6 ether were prepared, and then successfully applied in representative solid-liquid phase transfer catalysis reactions, which were performed in standard organic solvents, such as chlorobenzene and toluene, as well as in fluorous solvents, such as perfluoro-1,3-dimethylcyclohexane. It was clearly shown that properly designed fluoroponytailed crown ethers could promote the disintegration of the crystal lattice of alkali salts, and transfer anions from the solid surface into an apolar, non-coordinating perfluorocarbon phase, for phase transfer catalysis reactions in organic synthesis. Furthermore, 3,5-bis(perfluorooctyl)benzyl bromide and triethylamine were reacted under mild conditions to provide an analogue of the versatile phase transfer catalyst, benzyltriethylammonium chloride, containing two fluoroponytails. This fluoroponytailed quaternary ammonium salt was also successfully employed as a catalyst in a variety of organic reactions conducted under solid-liquid phase transfer catalysis conditions, without a perfluorocarbon phase. Thus, being both hydrophobic and lipophobic, fluorous crown ethers and ammonium salts, could be rapidly recovered in quantitative yields, and reused without loss of activity, over several reaction cycles.
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Affiliation(s)
- Gianluca Pozzi
- CNR-Istituto di Scienze e Tecnologie Molecolari, Milano, Italy.
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Pozzi G, Mihali V, Foschi F, Penso M, Quici S, Fish R. 3,5-Bis(n-perfluorooctyl)benzyltriethylammonium Bromide (F-TEBA): An Efficient, Easily Recoverable Fluorous Catalyst for Solid-Liquid PTC Reactions. Adv Synth Catal 2009. [DOI: 10.1002/adsc.200900631] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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16
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Usha J, Umapathy MJ. Radical Polymerization of n-BMA Using a Di-Site Phase Transfer Catalyst. INT J POLYM MATER PO 2009. [DOI: 10.1080/00914030902936485] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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17
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Methyl mercapturate synthesis: an efficient, convenient and simple method. Molecules 2008; 13:2394-407. [PMID: 18830162 PMCID: PMC6245067 DOI: 10.3390/molecules13102394] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2008] [Revised: 09/09/2008] [Accepted: 09/26/2008] [Indexed: 11/17/2022] Open
Abstract
A safe and simple method for methyl S-arylmercapturate synthesis is described. Thirteen such compounds, to be used afterwards in metabolism studies, have been obtained with yields ranging from 71 to 99.6%. These compounds were obtained using a sulfa-Michael addition and synthesized by adding the corresponding thiophenols to a mixture composed of methyl 2-acetamidoacrylate (MAA), potassium carbonate and a phase transfer catalyst, Aliquat 336. MAA, the initial synthon, was itself isolated in quasi quantitative yield following a fully described synthesis.
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Nelson J, Mckee V, Morgan G. Coordination Chemistry of Azacryptands. PROGRESS IN INORGANIC CHEMISTRY 2007. [DOI: 10.1002/9780470166482.ch2] [Citation(s) in RCA: 50] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
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Dillon KB, Hodgson M, Parker D. Catalytic and Stoichiometric Transformations with Triphenyl(P,P,P-Triphenylphosphine Imidato-N) Phosphorus Cyanide, [Pnp Cyanide]. SYNTHETIC COMMUN 2006. [DOI: 10.1080/00397918508063881] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Al-Rusaese S, Al-Kahtani AA, El-Azhary AA. Experimental and Theoretical Study of the Vibrational Spectra of 12-Crown-4−Alkali Metal Cation Complexes. J Phys Chem A 2006; 110:8676-87. [PMID: 16836428 DOI: 10.1021/jp062654l] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The vibrational, Raman, and IR, spectra of the five 12-crown-4 (12c4) complexes with Li+, Na+, K+, Rb+, and Cs+ alkali metal cations were measured. Except for a small shift of the position of some bands in the vibrational spectra of the Li+ complex, the vibrational spectra of the five complexes are so similar that it is concluded that the five complexes exist in the same conformation. B3LYP/6-31+G* force fields were calculated for six of the eight predicted conformations in a previous report (J. Phys. Chem. A 2005, 109, 8041) of the 12c4-Li+, Na+, and K+ complexes that are of symmetries higher than the C1 symmetry. These six conformations, in energy order, are of C4, Cs, Cs, C(2v), C(2v), and Cs symmetries. Comparison between the experimental and calculated vibrational frequencies assuming any of the above-mentioned six conformations shows that the five complexes exist in the C4 conformation. This agrees with the fact that the five alkali metal cations are larger than the 12c4 ring cavity. The B3LYP/6-31+G* force fields of the C4 conformation of the Li+, Na+ and K+ complexes were scaled using a set of eight scale factors and the scale factors were varied so as to minimize the difference between the calculated and experimental vibrational frequencies. The root-mean-square (rms) deviations of the calculated frequencies from the experimental frequencies were 7.7, 5.6, and 5.1 cm(-1) for the Li+, Na+, and K+ complexes, respectively. To account for the earlier results of the Li+ complex that the Cs conformation is more stable than the C4 conformation by 0.16 kcal/mol at the MP2/6-31+G* level, optimized geometries of the complex were calculated for the C4 and Cs conformations at the MP2/6-311++G** level. The C4 conformation was calculated to be more stable than the Cs conformation by 0.13 kcal/mol.
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Affiliation(s)
- S Al-Rusaese
- Chemistry Department, Faculty of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Kingdom of Saudi Arabia
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Hellwinkel D, Bohnet S. Dibenzocycloocten-, Dibenzochalcocin- und Diarenochalconindione. ACTA ACUST UNITED AC 2006. [DOI: 10.1002/cber.19871200711] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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23
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Polymer-supported phase transfer catalysts: Reaction mechanisms. ADVANCES IN POLYMER SCIENCE 2005. [DOI: 10.1007/3-540-12592-2_5] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/05/2023]
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Handel H, Muller FR, Guglielmetti R. Tetraazamacrocycles lipophiles: Application à l'extraction liquide-liquide des ions métalliques. Helv Chim Acta 2004. [DOI: 10.1002/hlca.19830660212] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Vigato PA, Tamburini S. The challenge of cyclic and acyclic schiff bases and related derivatives. Coord Chem Rev 2004. [DOI: 10.1016/j.cct.2003.09.003] [Citation(s) in RCA: 798] [Impact Index Per Article: 39.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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Vögtle F, Löhr HG, Franke J, Worsch D. Host/Guest Chemistry of Organic Onium Compounds-Clathrates, Crystalline Complexes, and Molecular Inclusion Compounds in Aqueous Solution. ACTA ACUST UNITED AC 2003. [DOI: 10.1002/anie.198507271] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Ohtani N, Ohta T, Watanabe K, Endo K, Mukudai J. The Role of Oil−Water Microinterface in Immobilized Phase-Transfer Catalysis. Ind Eng Chem Res 2003. [DOI: 10.1021/ie030147+] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Loris A, Perosa A, Selva M, Tundo P. Nucleophilic displacements in supercritical carbon dioxide under phase-transfer catalysis conditions. 2. Effect of pressure and kinetics. J Org Chem 2003; 68:4046-51. [PMID: 12737589 DOI: 10.1021/jo0268308] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The nucleophilic displacement on n-octylmesylate (n-C(8)H(17)OSO(2)CH(3), 1) with four different anions (I(-), Br(-), N(3)(-), and SCN(-)) is investigated under liquid-supercritical phase-transfer catalysis (LSc-PTC) conditions, i.e. in a biphase system of supercritical carbon dioxide (scCO(2)) and water, in the presence of both silica supported and conventional onium salts. The CO(2) pressure greatly affects the concentration of 1 in the sc-phase and plays a major role on its conversion. For example, at 50 degrees C and with a supported PT-catalyst, the conversion of 1 into n-octyl iodide drops by a factor of 5 as the CO(2) pressure is increased from 80 to 150 bar, while in the same pressure range, the solubility of n-octylmesylate in scCO(2) shows a 6-fold increase, indicating that the reagent is desorbed from the catalyst. Under LSc-PTC conditions, pseudo-first-order kinetic rate constants, evaluated for the investigated reactions, show that the performance of scCO(2) as a PTC solvent and the relative nucleophilicity order of the anions (N(3)(-) > I(-) > or = Br(-) > SCN(-)) are comparable to those of toluene and n-heptane. The behavior of conventional phosphonium salts in the scCO(2)/H(2)O biphase system suggests that the reaction may take place either within small droplets of PT-catalyst containing water or in a separate third liquid phase of the PT-catalyst itself.
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Affiliation(s)
- Alessandro Loris
- Dipartimento di Scienze Ambientali dell'Università Ca' Foscari di Venezia and Consorzio Interuniversitario La Chimica per l'Ambiente, Calle Larga S. Marta 2137, Italy
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Jwo JJ. Phase Transfer Catalysis: Fundamentals and Selected Systems. CATALYSIS REVIEWS-SCIENCE AND ENGINEERING 2003. [DOI: 10.1081/cr-120025539] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Ohtani N, Tsuchimoto D. Phase Behavior of Benzyltributylphosphonium Salts in Aromatic Hydrocarbons or Aqueous Solutions. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2001. [DOI: 10.1246/bcsj.74.1225] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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31
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El-Sayed AM, Abdel-Ghany H. One-Pot synthesis of isothiachromene, isochromene, isoquinoline and tetrahydronaphthalene derivatives. J Heterocycl Chem 2000. [DOI: 10.1002/jhet.5570370534] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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32
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Bartsch RA, Bitalac LP, Cowey CL, Elshani S, Goo MJ, Huber VJ, Ivy SN, Jang Y, Johnson RJ, Kim JS, Luboch E, Mcdonough JA, Pugia MJ, Son B, Zhao Q. Lariat ether alcohols based on dibenzo-16-crown-5. J Heterocycl Chem 2000. [DOI: 10.1002/jhet.5570370554] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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33
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Albanese D, Landini D, Maia A, Penso M. Phase transfer catalysis: some recent applications in organic synthesis. ACTA ACUST UNITED AC 1999. [DOI: 10.1016/s1381-1169(99)00219-8] [Citation(s) in RCA: 36] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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35
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Cohen S, Zoran A, Sasson Y. Direct evidence for the hydroxide extraction mechanism in the phase transfer catalyzed cyclopropanation of 4-halobutyronitrile in a solid-liquid system. Tetrahedron Lett 1998. [DOI: 10.1016/s0040-4039(98)02240-0] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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36
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TROXLER L, WIPFF G. Interfacial Behavior of Ionophoric Systems: Molecular Dynamics Studies on 18-Crown-6 and Its Complexes at the Water-Chloroform Interface. ANAL SCI 1998. [DOI: 10.2116/analsci.14.43] [Citation(s) in RCA: 40] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Affiliation(s)
- L. TROXLER
- Laboratoire MSM, UMR 7551 CNRS, Institut de Chimie
| | - G. WIPFF
- Laboratoire MSM, UMR 7551 CNRS, Institut de Chimie
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37
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Albanese D, Landini D, Penso M. Regioselective opening of epoxides to β-amido alcohols under solid-liquid PTC conditions. Tetrahedron 1997. [DOI: 10.1016/s0040-4020(97)00162-2] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Dillow AK, Yun SLJ, Suleiman D, Boatright DL, Liotta CL, Eckert CA. Kinetics of a Phase-Transfer Catalysis Reaction in Supercritical Fluid Carbon Dioxide. Ind Eng Chem Res 1996. [DOI: 10.1021/ie9600405] [Citation(s) in RCA: 52] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Angela K. Dillow
- Schools of Chemical Engineering and Chemistry and Specialty Separations Center, Georgia Institute of Technology, Atlanta, Georgia 30332-0100
| | - S. L. Jimmy Yun
- Schools of Chemical Engineering and Chemistry and Specialty Separations Center, Georgia Institute of Technology, Atlanta, Georgia 30332-0100
| | - David Suleiman
- Schools of Chemical Engineering and Chemistry and Specialty Separations Center, Georgia Institute of Technology, Atlanta, Georgia 30332-0100
| | - David L. Boatright
- Schools of Chemical Engineering and Chemistry and Specialty Separations Center, Georgia Institute of Technology, Atlanta, Georgia 30332-0100
| | - Charles L. Liotta
- Schools of Chemical Engineering and Chemistry and Specialty Separations Center, Georgia Institute of Technology, Atlanta, Georgia 30332-0100
| | - Charles A. Eckert
- Schools of Chemical Engineering and Chemistry and Specialty Separations Center, Georgia Institute of Technology, Atlanta, Georgia 30332-0100
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Ohtani N, Inoue Y, Kaneko Y, Sakakida A, Takeishi I, Furutani H. Solution Viscosity Behavior and Swelling Behavior of Polystyrene-Based Cationic Ionomers. Effects of Added Salts and Counterion. Polym J 1996. [DOI: 10.1295/polymj.28.11] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Sultan AA. SYNTHESIS OF SOME CONDENSED s-TRIAZOLE HETEROCYCLES USING PHASE-TRANSFER CATALYSIS TECHNIQUE. PHOSPHORUS SULFUR 1995. [DOI: 10.1080/10426509508042055] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Ohtani N, Inoue Y, Shinoki N, Nakayama K. Phase-Transfer Nucleophilic Reactions Using Water-Insoluble Alcohols as Organic Solvents. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 1995. [DOI: 10.1246/bcsj.68.2417] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Ohtani N, Inoue Y, Inagaki Y, Fukuda K, Nishiyama T. Reactions of Amino Acid Decyl Esters with Nucleophiles Catalyzed by Polymer-Supported Amine–Metal Complexes. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 1995. [DOI: 10.1246/bcsj.68.1669] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Corda L, Delogu G, Maccioni E, Podda G, Fernandez JMB. Electron impact mass spectrometry of new tris(polyoxalkyl)amines (tridents). J Heterocycl Chem 1994. [DOI: 10.1002/jhet.5570310607] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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Photoprocesses of eosine and rose bengal ion pairs with cationic surfactant in non-polar solvent: application in photosensitization studies. J Photochem Photobiol A Chem 1994. [DOI: 10.1016/1010-6030(93)02777-7] [Citation(s) in RCA: 28] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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O'Donnell MJ, Wu S, Huffman JC. A new active catalyst species for enantioselective alkylation by phase-transfer catalysis. Tetrahedron 1994. [DOI: 10.1016/s0040-4020(01)89382-0] [Citation(s) in RCA: 195] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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El-Saghier AMM. Simple One-Pot Synthesis of Thieno[2,3-b]thiophene Derivatives under Solid–Liquid PTC Conditions. Useful Starting Material for the Synthesis of Biological Active Compounds. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 1993. [DOI: 10.1246/bcsj.66.2011] [Citation(s) in RCA: 28] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Synthesis of methoxybenzenes from phenols and methyl formate via catalytic O-alkylation. ACTA ACUST UNITED AC 1993. [DOI: 10.1016/0304-5102(93)87058-g] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Bullitta MP, Maccioni E, Corda L, Podda G. Synthesis and catalytic activity of a new class of cyclophosphazenic polypodands. J Heterocycl Chem 1993. [DOI: 10.1002/jhet.5570300116] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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