1
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Hitoshio K, Maeda H, Teranishi K, Shimokawa J, Yorimitsu H. Synthesis of unsymmetrical dialkoxydiarylsilanes and diarylsilanediols from tetraalkoxysilane having a dioxasilepane unit. Chem Commun (Camb) 2024; 60:7339-7342. [PMID: 38916043 DOI: 10.1039/d4cc02051k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/26/2024]
Abstract
The tetraalkoxysilane carrying a stable seven-membered dioxasilepane moiety and two trifluoroethoxy groups undergoes reliable iterative substitution of the two trifluoroethoxy groups by sequential treatment with different aryl Grignard reagents while keeping the seven-membered structure intact. The process results in the synthesis of unsymmetrical dialkoxydiarylsilanes and eventually diarylsilanediols after proper hydrolysis.
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Affiliation(s)
- Kenshiro Hitoshio
- Department of Chemistry Graduate School of Science, Kyoto University Sakyo-ku, Kyoto 606-8502, Japan.
| | - Hiroki Maeda
- Department of Chemistry Graduate School of Science, Kyoto University Sakyo-ku, Kyoto 606-8502, Japan.
| | - Kento Teranishi
- Department of Chemistry Graduate School of Science, Kyoto University Sakyo-ku, Kyoto 606-8502, Japan.
| | - Jun Shimokawa
- Department of Chemistry Graduate School of Science, Kyoto University Sakyo-ku, Kyoto 606-8502, Japan.
| | - Hideki Yorimitsu
- Department of Chemistry Graduate School of Science, Kyoto University Sakyo-ku, Kyoto 606-8502, Japan.
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2
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Diedhiou M, Mayer PM. On the fate of protonated chloroformates in the gas phase: a competition between forming HCl and chloroformic acid. JOURNAL OF MASS SPECTROMETRY : JMS 2024; 59:e5044. [PMID: 38770544 DOI: 10.1002/jms.5044] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/20/2024] [Revised: 04/18/2024] [Accepted: 05/06/2024] [Indexed: 05/22/2024]
Abstract
Chloroformates are prevalent in the atmosphere due to their utilization as fuel additives and industrial solvents. These species may undergo interactions with atmospheric water resulting in protonated chloroformates. This study delves into the gas-phase dissociation of these protonated species. Tandem mass spectrometry was employed to scrutinize the unimolecular dissociation of protonated methyl (1), ethyl (2), neopentyl (3), and phenyl chloroformate (4). Notably, 1 and 4 exhibited HCl loss, yielding CH3OCO+ and C6H5OCO+, respectively, with 1 additionally generating neutral methanol and ClCO+. 4 additionally loses CO and CO2. In contrast, 2 and 3 each only exhibit a single fragmentation channel, with 2 losing C2H4 to generate protonated chloroformic acid and 3 generating protonated 2-methylbutene by losing neutral chloroformic acid. Density functional theory at the B3LYP/6-311+G(d,p) level of theory was employed to explore minimum energy reaction pathways for each ion, and CBS-QB3 single-point energy calculations were added to provide reliable energetics. The Rice-Ramsperger-Kassel-Marcus (RRKM) calculations of the rate constants for selected competing processes were carried out to link theory and experiment. One common unimolecular process observed was the 1,3-H shift of the proton from the carbonyl oxygen to the ester oxygen before dissociation.
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Affiliation(s)
- Malick Diedhiou
- Department of Chemistry and Biomolecular Sciences, University of Ottawa, Ottawa K1N 6N5, Canada
| | - Paul M Mayer
- Department of Chemistry and Biomolecular Sciences, University of Ottawa, Ottawa K1N 6N5, Canada
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3
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Aleksiev M, García Mancheño O. Enantioselective dearomatization reactions of heteroarenes by anion-binding organocatalysis. Chem Commun (Camb) 2023; 59:3360-3372. [PMID: 36790499 PMCID: PMC10019134 DOI: 10.1039/d2cc07101k] [Citation(s) in RCA: 12] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/16/2023]
Abstract
Catalytic asymmetric dearomatization of heteroaromatic compounds has received considerable attention in the last few years, since it allows for a fast expansion of the chemical space by converting relatively simple, flat molecules into complex, three dimensional structures with added value. Among different approaches, remarkable progress has been recently achieved by the development of organocatalytic dearomatization methods. In particular, the anion-binding catalysis technology has emerged as a potent alternative to metal catalysis, which together with the design of novel, tunable anion-receptor motifs, has provided new entries for the enantioselective dearomatization of heteroarenes through a chiral contact ion pair formation by activation of the electrophilic reaction partner. In this feature, we provide an overview of the different methodologies and advances in anion-binding catalyzed dearomatization reactions of different heteroarenes.
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Affiliation(s)
- Martin Aleksiev
- Organic Chemistry Institute, University of Münster, Corrensstraße 36/40, 48149 Münster, Germany.
| | - Olga García Mancheño
- Organic Chemistry Institute, University of Münster, Corrensstraße 36/40, 48149 Münster, Germany.
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4
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Valverde-González A, Borrallo-Aniceto MC, Pintado-Sierra M, Sánchez F, Arnanz A, Boronat M, Iglesias M. BINOL-Containing Chiral Porous Polymers as Platforms for Enantiorecognition. ACS APPLIED MATERIALS & INTERFACES 2022; 14:53936-53946. [PMID: 36417669 PMCID: PMC10471007 DOI: 10.1021/acsami.2c18074] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/07/2022] [Accepted: 11/12/2022] [Indexed: 06/16/2023]
Abstract
The enantioselective discrimination of racemic compounds can be achieved through the design and preparation of a new family of chiral conjugated BINOL-porous polymers (CBPPs) from enantiopure (R)- or (S)-BINOL derivatives and 1,3,5-tris(4-phenylboronic acid)benzene or 1,3,5-tris(4-ethynylphenyl)benzene, 1,3,5-triethynyl-2,4,6-trifluorobenzene, and tetra(4-ethynylphenyl)methane as comonomers following Suzuki-Miyaura and Sonogashira-Hagihara carbon-carbon coupling approaches. The obtained CBPPs show high thermal stability, a good specific surface area, and a robust framework and can be applied successfully in the fluorescence recognition of enantiomers of terpenes (limonene and α-pinene) and 1-phenylethylamine. Fluorescence titration of CBPPs-OH in acetonitrile shows that all Sonogashira hosts exhibit a preference for the (R)-enantiomer over the (S)-enantiomer of 1-phenylethylamine, the selectivity being much higher than that of the corresponding BINOL-based soluble system used as a reference. However, the Suzuki host reveals a preference toward (S)-phenylethylamine. Regarding the sensing of terpenes, only Sonogashira hosts show enantiodifferentiation with an almost total preference for the (S)-enantiomer of limonene and α-pinene. Based on the computational simulations and the experimental data, with 1-phenylethylamine as the analyte, chiral recognition is due to the distinctive binding affinities resulting from N···H-O hydrogen bonds and the π-π interaction between the host and the guest. However, for limonene, the geometry of the adsorption complex is mostly governed by the interaction between the hydroxyl group of the BINOL unit and the C═C bond of the iso-propenyl fragment. The synthetic strategy used to prepare CBPPs opens many possibilities to place chiral centers such as BINOL in porous polymers for different chiral applications such as enantiomer recognition.
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Affiliation(s)
- Antonio Valverde-González
- Instituto
de Ciencia de Materiales de Madrid, CSIC, C/ Sor Juana Inés de la cruz, 3, Madrid 28049, Spain
| | - M. Carmen Borrallo-Aniceto
- Instituto
de Ciencia de Materiales de Madrid, CSIC, C/ Sor Juana Inés de la cruz, 3, Madrid 28049, Spain
| | | | - Félix Sánchez
- Instituto
de Química Orgánica General, CSIC, C/ Juan de la Cierva, 3, Madrid 28006, Spain
| | - Avelina Arnanz
- Departamento
de Química inorgánica, Universidad
Autónoma de Madrid, Cantoblanco, Madrid 28049, Spain
| | - Mercedes Boronat
- Instituto
de Tecnología Química, Universitat
Politècnica de València- Consejo Superior de Investigaciones
Científicas (UPV-CSIC), Avenida de los Naranjos s/n, 46022 Valencia, Spain
| | - Marta Iglesias
- Instituto
de Ciencia de Materiales de Madrid, CSIC, C/ Sor Juana Inés de la cruz, 3, Madrid 28049, Spain
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5
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Entgelmeier LM, García Mancheño O. Activation Modes in Asymmetric Anion-Binding Catalysis. SYNTHESIS-STUTTGART 2022. [DOI: 10.1055/a-1846-6139] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
Over the past two decades, enantioselective anion-binding catalysis has emerged as a powerful strategy for the induction of chirality in organic transformations. The stereoselectivity is achieved in a range of different reactions by using non-covalent interactions between a chiral catalyst and an ionic substrate or intermediate, and subsequent formation of a chiral contact ion-pair upon anion-binding. This strategy offers vast possibilities in catalysis and the constant development of new reactions has led to various substrate activation approaches. This review provides an overview on the different activation modes in asymmetric anion-binding catalysis by looking at representative examples and recent advances made in this field.
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6
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Kondo SI, Okada N, Abe S, Tanaka R, Yamamura M, Unno M. Anion recognition by silanetriol in acetonitrile. Org Biomol Chem 2022; 20:8925-8931. [DOI: 10.1039/d2ob01596j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Anion recognition ability and organocatalytic activity of a silanetriol are firstly presented by comparing with those of a series of silanol derivatives.
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Affiliation(s)
- Shin-ichi Kondo
- Department of Chemistry, Faculty of Science, Yamagata University, Yamagata 990-8560, Japan
| | - Natsumi Okada
- Department of Chemistry and Chemical Biology, Graduate School of Science and Technology, Gunma University, Kiryu, Gunma 376-8515, Japan
| | - Shiori Abe
- Department of Chemistry, Faculty of Science, Yamagata University, Yamagata 990-8560, Japan
| | - Ryoji Tanaka
- Department of Chemistry and Chemical Biology, Graduate School of Science and Technology, Gunma University, Kiryu, Gunma 376-8515, Japan
- Sagami Chemical Research Institute, Hayakawa 2743-1, Ayase, Kanagawa 252-1193, Japan
| | - Masaki Yamamura
- Department of Chemistry and Chemical Biology, Graduate School of Science and Technology, Gunma University, Kiryu, Gunma 376-8515, Japan
- Faculty of Engineering, Toyama Prefectural University, 5180 Kurokawa, Imizu, Toyama 939-0398, Japan
| | - Masafumi Unno
- Department of Chemistry and Chemical Biology, Graduate School of Science and Technology, Gunma University, Kiryu, Gunma 376-8515, Japan
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7
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Copolymers incorporated with β-substituted acrylate synthesized by organo-catalyzed group-transfer polymerization. Polym J 2021. [DOI: 10.1038/s41428-021-00493-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
AbstractVarious copolymers incorporated with β-substituted acrylates, such as alkyl crotonates (e.g., methyl crotonate (MC), ethyl crotonate (EC), isopropyl crotonate (iPC), and n-butyl crotonate (nBC)) and methyl cinnamate (MCin), were synthesized by group-transfer polymerization (GTP) using a silicon-based Lewis acid catalyst. In addition to β-substituted acrylates, α-substituted acrylates (e.g., methyl methacrylate (MMA) and n-butyl methacrylate (nBMA)) were examined as comonomers. Proton nuclear magnetic resonance (1H NMR) spectroscopy and matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOF-MS) characterizations of the obtained copolymers revealed that each monomer component was incorporated sufficiently. The thermal stabilities of the resulting copolymers were investigated by dynamic mechanical analysis (DMA), indicating that the glass-transition temperature (Tg) of the copolymers can be widely varied over a relatively high-temperature range by selecting the optimal comonomer. More specifically, the Tg values of poly(MC-random-EC) (MC/EC molar ratio = 50/50), poly(MC-random-nBC) (MC/nBC molar ratio = 50/50), poly(MC-random-MCin) (MC/MCin molar ratio = 54/46), and poly(nBC-random-MCin) (nBC/MCin molar ratio = 56/44) were 173, 130, 216, and 167 °C, respectively.
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9
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Hou B, Yang S, Yang K, Han X, Tang X, Liu Y, Jiang J, Cui Y. Confinement-Driven Enantioselectivity in 3D Porous Chiral Covalent Organic Frameworks. Angew Chem Int Ed Engl 2021; 60:6086-6093. [PMID: 33295124 DOI: 10.1002/anie.202013926] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2020] [Revised: 11/24/2020] [Indexed: 11/09/2022]
Abstract
3D covalent organic frameworks (COFs) with well-defined porous channels are shown to be capable of inducing chiral molecular catalysts from non-enantioselective to highly enantioselective in catalyzing organic transformations. By condensations of a tetrahedral tetraamine and two linear dialdehydes derived from enantiopure 1,1'-binaphthol (BINOL), two chiral 3D COFs with a 9-fold or 11-fold interpenetrated diamondoid framework are prepared. Enhanced Brønsted acidity was observed for the chiral BINOL units that are uniformly distributed within the tubular channels compared to the non-immobilized acids. This facilitates the Brønsted acid catalysis of cyclocondensation of aldehydes and anthranilamides to produce 2,3-dihydroquinazolinones. DFT calculations show the COF catalyst provides preferential secondary interactions between the substrate and framework to induce enantioselectivities that are not achievable in homogeneous systems.
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Affiliation(s)
- Bang Hou
- School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules and State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, Shanghai, 200240, China
| | - Shi Yang
- School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules and State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, Shanghai, 200240, China
| | - Kuiwei Yang
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 117576, Singapore, Singapore
| | - Xing Han
- School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules and State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, Shanghai, 200240, China
| | - Xianhui Tang
- School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules and State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, Shanghai, 200240, China
| | - Yan Liu
- School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules and State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, Shanghai, 200240, China
| | - Jianwen Jiang
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 117576, Singapore, Singapore
| | - Yong Cui
- School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules and State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, Shanghai, 200240, China
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10
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Affiliation(s)
- Jiarong Shi
- School of Chemistry and Chemical Engineering, Chongqing University, 174 Shazheng Street, Chongqing, P. R. China, 400030
| | - Lianggui Li
- School of Chemistry and Chemical Engineering, Chongqing University, 174 Shazheng Street, Chongqing, P. R. China, 400030
| | - Yang Li
- School of Chemistry and Chemical Engineering, Chongqing University, 174 Shazheng Street, Chongqing, P. R. China, 400030
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11
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Hou B, Yang S, Yang K, Han X, Tang X, Liu Y, Jiang J, Cui Y. Confinement‐Driven Enantioselectivity in 3D Porous Chiral Covalent Organic Frameworks. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202013926] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Bang Hou
- School of Chemistry and Chemical Engineering Frontiers Science Center for Transformative Molecules and State Key Laboratory of Metal Matrix Composites Shanghai Jiao Tong University Shanghai 200240 China
| | - Shi Yang
- School of Chemistry and Chemical Engineering Frontiers Science Center for Transformative Molecules and State Key Laboratory of Metal Matrix Composites Shanghai Jiao Tong University Shanghai 200240 China
| | - Kuiwei Yang
- Department of Chemical and Biomolecular Engineering National University of Singapore 117576 Singapore Singapore
| | - Xing Han
- School of Chemistry and Chemical Engineering Frontiers Science Center for Transformative Molecules and State Key Laboratory of Metal Matrix Composites Shanghai Jiao Tong University Shanghai 200240 China
| | - Xianhui Tang
- School of Chemistry and Chemical Engineering Frontiers Science Center for Transformative Molecules and State Key Laboratory of Metal Matrix Composites Shanghai Jiao Tong University Shanghai 200240 China
| | - Yan Liu
- School of Chemistry and Chemical Engineering Frontiers Science Center for Transformative Molecules and State Key Laboratory of Metal Matrix Composites Shanghai Jiao Tong University Shanghai 200240 China
| | - Jianwen Jiang
- Department of Chemical and Biomolecular Engineering National University of Singapore 117576 Singapore Singapore
| | - Yong Cui
- School of Chemistry and Chemical Engineering Frontiers Science Center for Transformative Molecules and State Key Laboratory of Metal Matrix Composites Shanghai Jiao Tong University Shanghai 200240 China
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12
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Momo PB, Leveille AN, Farrar EHE, Grayson MN, Mattson AE, Burtoloso ACB. Enantioselective S-H Insertion Reactions of α-Carbonyl Sulfoxonium Ylides. Angew Chem Int Ed Engl 2020; 59:15554-15559. [PMID: 32352184 PMCID: PMC7606806 DOI: 10.1002/anie.202005563] [Citation(s) in RCA: 45] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2020] [Indexed: 12/20/2022]
Abstract
The first example of enantioselective S-H insertion reactions of sulfoxonium ylides is reported. Under the influence of thiourea catalysis, excellent levels of enantiocontrol (up to 95 % ee) and yields (up to 97 %) are achieved for 31 examples in S-H insertion reactions of aryl thiols and α-carbonyl sulfoxonium ylides.
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Affiliation(s)
- Patrícia B. Momo
- Institute of Chemistry of São CarlosUniversity of São PauloCEP 13560-970São CarlosSPBrazil
| | - Alexandria N. Leveille
- Department Chemistry and BiochemistryWorcester Polytechnic Institute100 Institute RoadWorcesterMA01609USA
| | | | | | - Anita E. Mattson
- Department Chemistry and BiochemistryWorcester Polytechnic Institute100 Institute RoadWorcesterMA01609USA
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13
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Imada M, Takenaka Y, Tsuge T, Abe H. Effect of Disyndiotacticity on the Glass Transition Temperature of Poly(ethyl crotonate)s Synthesized by Group-Transfer Polymerization Catalyzed by Organic Acids. Macromolecules 2020. [DOI: 10.1021/acs.macromol.0c01122] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Affiliation(s)
- Motosuke Imada
- Bioplastic Research Team, RIKEN Center for Sustainable Resource Science, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
- Department of Materials Science and Engineering, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama 226-8502, Japan
- Research Center, Innovation and Business Development Division, Nippon Shokubai Co., Ltd., 5-8 Nishi Otabi-cho, Suita, Osaka 564-0034, Japan
| | - Yasumasa Takenaka
- Bioplastic Research Team, RIKEN Center for Sustainable Resource Science, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - Takeharu Tsuge
- Department of Materials Science and Engineering, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama 226-8502, Japan
| | - Hideki Abe
- Bioplastic Research Team, RIKEN Center for Sustainable Resource Science, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
- Department of Materials Science and Engineering, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama 226-8502, Japan
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14
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Momo PB, Leveille AN, Farrar EHE, Grayson MN, Mattson AE, Burtoloso ACB. Enantioselective S−H Insertion Reactions of α‐Carbonyl Sulfoxonium Ylides. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202005563] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Patrícia B. Momo
- Institute of Chemistry of São Carlos University of São Paulo CEP 13560-970 São Carlos SP Brazil
| | - Alexandria N. Leveille
- Department Chemistry and Biochemistry Worcester Polytechnic Institute 100 Institute Road Worcester MA 01609 USA
| | | | - Matthew N. Grayson
- Department of Chemistry University of Bath Claverton Down Bath BA2 7AY UK
| | - Anita E. Mattson
- Department Chemistry and Biochemistry Worcester Polytechnic Institute 100 Institute Road Worcester MA 01609 USA
| | - Antonio C. B. Burtoloso
- Institute of Chemistry of São Carlos University of São Paulo CEP 13560-970 São Carlos SP Brazil
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15
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Nakamura T, Okuno K, Nishiyori R, Shirakawa S. Hydrogen‐Bonding Catalysis of Alkyl‐Onium Salts. Chem Asian J 2020; 15:463-472. [DOI: 10.1002/asia.201901652] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2019] [Indexed: 12/20/2022]
Affiliation(s)
- Takumi Nakamura
- Department of Environmental ScienceGraduate School of Fisheries and Environmental SciencesNagasaki University 1-14 Bunkyo-machi Nagasaki 852-8521 Japan
| | - Ken Okuno
- Department of Environmental ScienceGraduate School of Fisheries and Environmental SciencesNagasaki University 1-14 Bunkyo-machi Nagasaki 852-8521 Japan
| | - Ryuichi Nishiyori
- Department of Environmental ScienceGraduate School of Fisheries and Environmental SciencesNagasaki University 1-14 Bunkyo-machi Nagasaki 852-8521 Japan
| | - Seiji Shirakawa
- Department of Environmental ScienceGraduate School of Fisheries and Environmental SciencesNagasaki University 1-14 Bunkyo-machi Nagasaki 852-8521 Japan
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16
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Imada M, Takenaka Y, Tsuge T, Abe H. Kinetic modeling study of the group-transfer polymerization of alkyl crotonates using a silicon Lewis acid catalyst. Polym Chem 2020. [DOI: 10.1039/d0py00353k] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Kinetic modeling is effective in the development of efficient and manageable polymerization systems.
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Affiliation(s)
- Motosuke Imada
- Bioplastic Research Team
- RIKEN Center for Sustainable Resource Science
- Saitama 351-0198
- Japan
- Department of Materials Science and Engineering
| | - Yasumasa Takenaka
- Bioplastic Research Team
- RIKEN Center for Sustainable Resource Science
- Saitama 351-0198
- Japan
| | - Takeharu Tsuge
- Department of Materials Science and Engineering
- Tokyo Institute of Technology
- Yokohama 226-8502
- Japan
| | - Hideki Abe
- Bioplastic Research Team
- RIKEN Center for Sustainable Resource Science
- Saitama 351-0198
- Japan
- Department of Materials Science and Engineering
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17
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Ma J, Kass SR. Electrostatically Enhanced Phosphoric Acids and Their Applications in Asymmetric Friedel-Crafts Alkylations. J Org Chem 2019; 84:11125-11134. [PMID: 31386810 DOI: 10.1021/acs.joc.9b01741] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
A series of electrostatically enhanced phosphoric acid catalysts were synthesized and studied. These compounds possess two positively charged N-octylpyridinium or triarylphosphonium ion centers at the 3,3'-positions of the (R)-BINOL backbone to enhance reactivity and provide needed steric bulk for enantioselective transformations. Catalytic activities for Friedel-Crafts alkylations of indoles with trans-β-nitrostyrenes were studied. Both types of catalysts accelerate reaction conversions relative to noncharged analogues, and good enantioselectivities up to 90% ee are observed with the phosphonium-ion-tagged phosphoric acids. This transformation also can be scaled up to synthetically useful amounts, affording >250 mg of product without losing any reactivity or selectivity.
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Affiliation(s)
- Jie Ma
- Department of Chemistry , University of Minnesota , 207 Pleasant Street, SE , Minneapolis , Minnesota 55455 , United States
| | - Steven R Kass
- Department of Chemistry , University of Minnesota , 207 Pleasant Street, SE , Minneapolis , Minnesota 55455 , United States
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18
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Anzabi MY, Yazdani H, Bazgir A. Electrostatically Enhanced Sulfuric Acid: A Strong Brønsted Acidic Catalyst for Multi-Component Reactions. Catal Letters 2019. [DOI: 10.1007/s10562-019-02776-w] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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19
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Boer SA, Foyle EM, Thomas CM, White NG. Anion coordination chemistry using O-H groups. Chem Soc Rev 2019; 48:2596-2614. [PMID: 30860210 DOI: 10.1039/c8cs00828k] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
This review covers significant advances in the use of O-H groups in anion coordination chemistry. The review focuses on the use of these groups in synthetic anion receptors, as well as more recent developments in transport, self-assembly and catalysis.
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Affiliation(s)
- Stephanie A Boer
- Research School of Chemistry, The Australian National University, Canberra, Australia.
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20
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Fox F, Neudörfl JM, Goldfuss B. Silanediol versus chlorosilanol: hydrolyses and hydrogen-bonding catalyses with fenchole-based silanes. Beilstein J Org Chem 2019; 15:167-186. [PMID: 30745992 PMCID: PMC6350884 DOI: 10.3762/bjoc.15.17] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2018] [Accepted: 12/22/2018] [Indexed: 01/01/2023] Open
Abstract
Biphenyl-2,2'-bisfenchyloxydichlorosilane (7, BIFOXSiCl2) is synthesized and employed as precursor for the new silanols biphenyl-2,2'-bisfenchyloxychlorosilanol (8, BIFOXSiCl(OH)) and biphenyl-2,2'-bisfenchyloxysilanediol (9, BIFOXSi(OH)2). BIFOXSiCl2 (7) shows a remarkable stability against hydrolysis, yielding silanediol 9 under enforced conditions. A kinetic study for the hydrolysis of dichlorosilane 7 shows a 263 times slower reaction compared to reference bis-(2,4,6-tri-tert-butylphenoxy)dichlorosilane (14), known for its low hydrolytic reactivity. Computational analyses explain the slow hydrolyses of BIFOXSiCl2 (7) to BIFOXSiCl(OH) (8, E a = 32.6 kcal mol-1) and BIFOXSiCl(OH) (8) to BIFOXSi(OH)2 (9, E a = 31.4 kcal mol-1) with high activation barriers, enforced by endo fenchone units. Crystal structure analyses of silanediol 9 with acetone show shorter hydrogen bonds between the Si-OH groups and the oxygen of the bound acetone (OH···O 1.88(3)-2.05(2) Å) than with chlorosilanol 8 (OH···2.16(0) Å). Due to its two hydroxy units, the silanediol 9 shows higher catalytic activity as hydrogen bond donor than chlorosilanol 8, e.g., C-C coupling N-acyl Mannich reaction of silyl ketene acetals 11 with N-acylisoquinolinium ions (up to 85% yield and 12% ee), reaction of 1-chloroisochroman (18) and silyl ketene acetals 11 (up to 85% yield and 5% ee), reaction of chromen-4-one (20) and silyl ketene acetals 11 (up to 98% yield and 4% ee).
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Affiliation(s)
- Falco Fox
- Department für Chemie, Institut für Organische Chemie, Greinstrasse 4, 50939 Köln, Germany
| | - Jörg M Neudörfl
- Department für Chemie, Institut für Organische Chemie, Greinstrasse 6, 50939 Köln, Germany
| | - Bernd Goldfuss
- Department für Chemie, Institut für Organische Chemie, Greinstrasse 4, 50939 Köln, Germany
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21
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Chiral Diol-Based Organocatalysts in Enantioselective Reactions. Molecules 2018; 23:molecules23092317. [PMID: 30208621 PMCID: PMC6225256 DOI: 10.3390/molecules23092317] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2018] [Revised: 09/03/2018] [Accepted: 09/06/2018] [Indexed: 12/22/2022] Open
Abstract
Organocatalysis has emerged as a powerful synthetic tool in organic chemistry in the last few decades. Among various classes of organocatalysis, chiral diol-based scaffolds, such as BINOLs, VANOLs, and tartaric acid derivatives, have been widely used to induce enantioselectivity due to the ability of the hydroxyls to coordinate with the Lewis acidic sites of reagents or substrates and create a chiral environment for the transformation. In this review, we will discuss the applications of these diol-based catalysts in different types of reactions, including the scopes of reactions and the modes of catalyst activation. In general, the axially chiral aryl diol BINOL and VANOL derivatives serve as the most competent catalyst for most examples, but examples of exclusive success using other scaffolds, herein, suggests that they should not be overlooked. Lastly, the examples, to date, are mainly from tartrate and biaryl diol catalysts, suggesting that innovation may be available from new diol scaffolds.
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22
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Hurkes N, Belaj F, Koe JR, Pietschnig R. Synthesis, structure and catalytic properties of bis[2-(trifluoromethyl)phenyl]silanediol. Appl Organomet Chem 2018. [DOI: 10.1002/aoc.4427] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- Natascha Hurkes
- Institute of Chemistry and Center for Interdisciplinary Nanostructure Science and Technology (CINSaT); University of Kassel; Heinrich-Plett-Straße 40 34132 Kassel Germany
| | - Ferdinand Belaj
- Institute of Chemistry; Karl-Franzens-University; Schubertstraße 1 8010 Graz Austria
| | - Julian R. Koe
- Department of Natural Sciences; International Christian University; 3-10-2 Osawa Mitaka Tokyo 181-8585 Japan
| | - Rudolf Pietschnig
- Institute of Chemistry and Center for Interdisciplinary Nanostructure Science and Technology (CINSaT); University of Kassel; Heinrich-Plett-Straße 40 34132 Kassel Germany
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23
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Marappan D, Palanisamy M, Velappan K, Muthukumaran N, Ganesan P. First luminescent triphenyl silanol enabled by non-innocent acridine orange. INORG CHEM COMMUN 2018. [DOI: 10.1016/j.inoche.2018.04.020] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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24
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Guan Y, Attard JW, Visco MD, Fisher TJ, Mattson AE. Enantioselective Catalyst Systems from Copper(II) Triflate and BINOL-Silanediol. Chemistry 2018; 24:7123-7127. [PMID: 29575279 DOI: 10.1002/chem.201801304] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2018] [Indexed: 12/24/2022]
Abstract
Silanediol and copper catalysis are merged, for the first time, to create an enhanced Lewis acid catalyst system for enantioselective heterocycle functionalization. The promise of this silanediol and copper catalyst combination is demonstrated in the enantioselective addition of indoles to alkylidene malonates to give rise to the desirable adducts in excellent yield and high enantiomeric excess. From these studies, 1,1'-bi-2-naphthol (BINOL)-based silanediols emerge as one-of-a-kind cocatalysts. Their potential role in the reaction pathway is also discussed.
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Affiliation(s)
- Yong Guan
- Department of Chemistry and Biochemistry, Worcester Polytechnic Institute, 100 Institute Road, Worcester, MA, 01609, USA
| | - Jonathan W Attard
- Department of Chemistry and Biochemistry, Worcester Polytechnic Institute, 100 Institute Road, Worcester, MA, 01609, USA
| | | | - Thomas J Fisher
- The Goodyear Tire and Rubber Company, 200 Innovation Way, Akron, OH, USA
| | - Anita E Mattson
- Department of Chemistry and Biochemistry, Worcester Polytechnic Institute, 100 Institute Road, Worcester, MA, 01609, USA
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25
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Jin Y, Makida Y, Uchida T, Kuwano R. Ruthenium-Catalyzed Chemo- and Enantioselective Hydrogenation of Isoquinoline Carbocycles. J Org Chem 2018; 83:3829-3839. [PMID: 29547282 DOI: 10.1021/acs.joc.8b00190] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
A chemoselective hydrogenation of isoquinoline carbocycles was achieved by using the catalyst prepared from Ru(methallyl)2(cod) and trans-chelate chiral ligand PhTRAP. The unique chemoselectivity achieved in this hydrogenation could be ascribed to the trans-chelation of the chiral ligand. The procedure for preparing the catalyst strongly affects the reproducibility of the carbocycle hydrogenation. Various 5-, 6-, 7-, and 8-substituted isoquinolines were selectively hydrogenated at their carbocycles to afford 5,6,7,8-tetrahydroisoquinolines as major products in high yields with moderate or good enantioselectivities. Some mechanistic studies suggested that the stereogenic center was created during the initial addition of H2 to the aromatic ring in the hydrogenation of 5-substituted isoquinolines. In other words, the stereochemical control was accompanied by the dearomatization.
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Affiliation(s)
- Yushu Jin
- Department of Chemistry, Faculty of Science , Kyushu University , 744 Motooka , Nishi-ku, Fukuoka 819-0395 , Japan
| | - Yusuke Makida
- Department of Chemistry, Faculty of Science , Kyushu University , 744 Motooka , Nishi-ku, Fukuoka 819-0395 , Japan
| | - Tatsuya Uchida
- International Institute for Carbon-Neutral Energy Research (I2CNER) , Kyushu University , 744 Motooka , Nishi-ku, Fukuoka 819-0395 , Japan.,Faculty of Arts and Science , Kyushu University , 744 Motooka , Nishi-ku, Fukuoka 819-0395 , Japan
| | - Ryoichi Kuwano
- Department of Chemistry, Faculty of Science , Kyushu University , 744 Motooka , Nishi-ku, Fukuoka 819-0395 , Japan
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26
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Benz S, Poblador-Bahamonde AI, Low-Ders N, Matile S. Catalysis with Pnictogen, Chalcogen, and Halogen Bonds. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201801452] [Citation(s) in RCA: 77] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Sebastian Benz
- Department of Organic Chemistry; University of Geneva; Geneva Switzerland
| | | | - Nicolas Low-Ders
- Department of Organic Chemistry; University of Geneva; Geneva Switzerland
| | - Stefan Matile
- Department of Organic Chemistry; University of Geneva; Geneva Switzerland
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27
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Benz S, Poblador-Bahamonde AI, Low-Ders N, Matile S. Catalysis with Pnictogen, Chalcogen, and Halogen Bonds. Angew Chem Int Ed Engl 2018; 57:5408-5412. [PMID: 29558562 PMCID: PMC5947745 DOI: 10.1002/anie.201801452] [Citation(s) in RCA: 235] [Impact Index Per Article: 39.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2018] [Indexed: 12/31/2022]
Abstract
Halogen‐ and chalcogen‐based σ‐hole interactions have recently received increased interest in non‐covalent organocatalysis. However, the closely related pnictogen bonds have been neglected. In this study, we introduce conceptually simple, neutral, and monodentate pnictogen‐bonding catalysts. Solution and in silico binding studies, together with high catalytic activity in chloride abstraction reactions, yield compelling evidence for operational pnictogen bonds. The depth of the σ holes is easily varied with different substituents. Comparison with homologous halogen‐ and chalcogen‐bonding catalysts shows an increase in activity from main group VII to V and from row 3 to 5 in the periodic table. Pnictogen bonds from antimony thus emerged as by far the best among the elements covered, a finding that provides most intriguing perspectives for future applications in catalysis and beyond.
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Affiliation(s)
- Sebastian Benz
- Department of Organic Chemistry, University of Geneva, Geneva, Switzerland
| | | | - Nicolas Low-Ders
- Department of Organic Chemistry, University of Geneva, Geneva, Switzerland
| | - Stefan Matile
- Department of Organic Chemistry, University of Geneva, Geneva, Switzerland
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28
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Wolf FF, Neudörfl JM, Goldfuss B. Hydrogen-bonding cyclodiphosphazanes: superior effects of 3,5-(CF3)2-substitution in anion-recognition and counter-ion catalysis. NEW J CHEM 2018. [DOI: 10.1039/c7nj04660j] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Syntheses, X-ray characterization and employment of new cyclodiphosph(v)azane hydrogen-bonding catalysts in experimental and computational anion recognition and the N-acyl-Mannich reaction.
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Affiliation(s)
- Florian F. Wolf
- Institut für Organische Chemie
- Universität zu Köln
- 50939 Köln
- Germany
| | - Jörg-M. Neudörfl
- Institut für Organische Chemie
- Universität zu Köln
- 50939 Köln
- Germany
| | - Bernd Goldfuss
- Institut für Organische Chemie
- Universität zu Köln
- 50939 Köln
- Germany
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29
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Visco MD, Attard J, Guan Y, Mattson AE. Anion-binding catalyst designs for enantioselective synthesis. Tetrahedron Lett 2017. [DOI: 10.1016/j.tetlet.2017.05.045] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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30
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Diemoz KM, Hein JE, Wilson SO, Fettinger JC, Franz AK. Reaction Progress Kinetics Analysis of 1,3-Disiloxanediols as Hydrogen-Bonding Catalysts. J Org Chem 2017; 82:6738-6747. [DOI: 10.1021/acs.joc.7b00875] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Affiliation(s)
- Kayla M. Diemoz
- Department
of Chemistry, University of California, One Shields Avenue, Davis, California 95616, United States
| | - Jason E. Hein
- Department
of Chemistry, University of British Columbia, 2036 Main Mall, Vancouver, BC Canada, V6T1Z1
| | - Sean O. Wilson
- Department
of Chemistry, University of California, One Shields Avenue, Davis, California 95616, United States
| | - James C. Fettinger
- Department
of Chemistry, University of California, One Shields Avenue, Davis, California 95616, United States
| | - Annaliese K. Franz
- Department
of Chemistry, University of California, One Shields Avenue, Davis, California 95616, United States
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31
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Kaneko S, Kumatabara Y, Shimizu S, Maruoka K, Shirakawa S. Hydrogen-bonding catalysis of sulfonium salts. Chem Commun (Camb) 2017; 53:119-122. [PMID: 27892549 DOI: 10.1039/c6cc08411g] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Although quaternary ammonium and phosphonium salts are known as important catalysts in phase-transfer catalysis, the catalytic ability of tertiary sulfonium salts has not yet been well demonstrated. Herein, we demonstrate the catalytic ability of trialkylsulfonium salts as hydrogen-bonding catalysts on the basis of the characteristic properties of the acidic α hydrogen atoms on alkylsulfonium salts.
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Affiliation(s)
- Shiho Kaneko
- Department of Environmental Science, Graduate School of Fisheries and Environmental Sciences, Nagasaki University, 1-14, Bunkyo-machi, Nagasaki 852-8521, Japan.
| | - Yusuke Kumatabara
- Department of Environmental Science, Graduate School of Fisheries and Environmental Sciences, Nagasaki University, 1-14, Bunkyo-machi, Nagasaki 852-8521, Japan.
| | - Shoichi Shimizu
- Department of Applied Molecular Chemistry, College of Industrial Technology, Nihon University, Izumi-cho, Narashino, Chiba 275-8575, Japan
| | - Keiji Maruoka
- Department of Chemistry, Graduate School of Science, Kyoto University, Sakyo, Kyoto 606-8502, Japan
| | - Seiji Shirakawa
- Department of Environmental Science, Graduate School of Fisheries and Environmental Sciences, Nagasaki University, 1-14, Bunkyo-machi, Nagasaki 852-8521, Japan.
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32
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Neumeyer M, Brückner R. Establishing Consensus Stereostructures for the Naphthoquinonopyrano-γ-lactone Natural Products (-)-Arizonin B1 and (-)-Arizonin C1 by Total Syntheses. Diastereocontrol of Oxa-Pictet-Spengler Cyclizations by Protective-Group Optimization. European J Org Chem 2017. [DOI: 10.1002/ejoc.201700013] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Affiliation(s)
- Markus Neumeyer
- Institut für Organische Chemie; Albert-Ludwigs-Universität Freiburg; Albertstraße 21 79104 Freiburg Germany
| | - Reinhard Brückner
- Institut für Organische Chemie; Albert-Ludwigs-Universität Freiburg; Albertstraße 21 79104 Freiburg Germany
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33
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Venkatakrishnarao D, Narayana YSLV, Mohaiddon MA, Mamonov EA, Mitetelo N, Kolmychek IA, Maydykovskiy AI, Novikov VB, Murzina TV, Chandrasekar R. Two-Photon Luminescence and Second-Harmonic Generation in Organic Nonlinear Surface Comprised of Self-Assembled Frustum Shaped Organic Microlasers. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2017. [PMID: 28112830 DOI: 10.1039/c7tc04621a] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/12/2023]
Abstract
An ultrathin nonlinear optical (NLO) organic surface composed of numerous self-assembled frustum-shaped whispering-gallery-mode resonators displays both two-photon luminescence and second-harmonic-generation signals. A super-second-order increase of the NLO intensity with respect to pump power confirms the microlasing action and practical usefulness of the NLO organic surfaces.
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Affiliation(s)
- Dasari Venkatakrishnarao
- Functional Molecular Nano-/Micro-Solids Laboratory, School of Chemistry, University of Hyderabad, Prof. C. R. Rao Road, Gachibowli, Hyderabad, 500046, India
| | - Yemineni S L V Narayana
- Functional Molecular Nano-/Micro-Solids Laboratory, School of Chemistry, University of Hyderabad, Prof. C. R. Rao Road, Gachibowli, Hyderabad, 500046, India
| | - Mahamad A Mohaiddon
- Centre for Nanoscience and Technology, University of Hyderabad, Prof. C. R. Rao Road, Gachibowli, Hyderabad, 500046, India
| | - Evgeniy A Mamonov
- Division of Quantum Electronics, Department of Physics, M. V. Lomonosov Moscow State University, Moscow, 119991, Russia
| | - Nikolai Mitetelo
- Division of Quantum Electronics, Department of Physics, M. V. Lomonosov Moscow State University, Moscow, 119991, Russia
| | - Irina A Kolmychek
- Division of Quantum Electronics, Department of Physics, M. V. Lomonosov Moscow State University, Moscow, 119991, Russia
| | - Anton I Maydykovskiy
- Division of Quantum Electronics, Department of Physics, M. V. Lomonosov Moscow State University, Moscow, 119991, Russia
| | - Vladimir B Novikov
- Division of Quantum Electronics, Department of Physics, M. V. Lomonosov Moscow State University, Moscow, 119991, Russia
| | - Tatiana V Murzina
- Division of Quantum Electronics, Department of Physics, M. V. Lomonosov Moscow State University, Moscow, 119991, Russia
| | - Rajadurai Chandrasekar
- Functional Molecular Nano-/Micro-Solids Laboratory, School of Chemistry, University of Hyderabad, Prof. C. R. Rao Road, Gachibowli, Hyderabad, 500046, India
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34
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Yang C, Wang J, Liu Y, Ni X, Li X, Cheng J. Study on the Catalytic Behavior of Bifunctional Hydrogen‐Bonding Catalysts Guided by Free Energy Relationship Analysis of Steric Parameters. Chemistry 2017; 23:5488-5497. [DOI: 10.1002/chem.201605666] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2016] [Indexed: 01/09/2023]
Affiliation(s)
- Chen Yang
- State Key Laboratory of Elemento-organic Chemistry College of Chemistry Nankai University Tianjin 300071 P. R. China
| | - Jie Wang
- State Key Laboratory of Elemento-organic Chemistry College of Chemistry Nankai University Tianjin 300071 P. R. China
| | - Yang Liu
- State Key Laboratory of Elemento-organic Chemistry College of Chemistry Nankai University Tianjin 300071 P. R. China
| | - Xiang Ni
- State Key Laboratory of Elemento-organic Chemistry College of Chemistry Nankai University Tianjin 300071 P. R. China
| | - Xin Li
- State Key Laboratory of Elemento-organic Chemistry College of Chemistry Nankai University Tianjin 300071 P. R. China
- Collaborative Innovation Center of Chemical Science and Engineering Tianjin 300071 P. R. China
| | - Jin‐Pei Cheng
- State Key Laboratory of Elemento-organic Chemistry College of Chemistry Nankai University Tianjin 300071 P. R. China
- Collaborative Innovation Center of Chemical Science and Engineering Tianjin 300071 P. R. China
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35
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Jarvis CL, Hirschi JS, Vetticatt MJ, Seidel D. Catalytic Enantioselective Synthesis of Lactams through Formal [4+2] Cycloaddition of Imines with Homophthalic Anhydride. Angew Chem Int Ed Engl 2017; 56:2670-2674. [DOI: 10.1002/anie.201612148] [Citation(s) in RCA: 49] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2016] [Indexed: 01/26/2023]
Affiliation(s)
- Claire L. Jarvis
- Department of Chemistry and Chemical Biology; Rutgers, The State University of New Jersey; Piscataway NJ 08854 USA
| | | | | | - Daniel Seidel
- Department of Chemistry and Chemical Biology; Rutgers, The State University of New Jersey; Piscataway NJ 08854 USA
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36
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Jarvis CL, Hirschi JS, Vetticatt MJ, Seidel D. Catalytic Enantioselective Synthesis of Lactams through Formal [4+2] Cycloaddition of Imines with Homophthalic Anhydride. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201612148] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Affiliation(s)
- Claire L. Jarvis
- Department of Chemistry and Chemical Biology; Rutgers, The State University of New Jersey; Piscataway NJ 08854 USA
| | | | | | - Daniel Seidel
- Department of Chemistry and Chemical Biology; Rutgers, The State University of New Jersey; Piscataway NJ 08854 USA
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37
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Velásquez-Hernández MDJ, Torres-Huerta A, Hernández-Balderas U, Martínez-Otero D, Núñez-Pineda A, Jancik V. Novel route to silanetriols and silanediols based on acetoxysilylalkoxides. Polyhedron 2017. [DOI: 10.1016/j.poly.2016.10.051] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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38
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Diemoz KM, Wilson SO, Franz AK. Synthesis of Structurally Varied 1,3-Disiloxanediols and Their Activity as Anion-Binding Catalysts. Chemistry 2016; 22:18349-18353. [DOI: 10.1002/chem.201604103] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2016] [Indexed: 01/06/2023]
Affiliation(s)
- Kayla M. Diemoz
- Department of Chemistry; University of California, Davis; One Shields Avenue Davis Ca USA
| | - Sean O. Wilson
- Department of Chemistry; University of California, Davis; One Shields Avenue Davis Ca USA
| | - Annaliese K. Franz
- Department of Chemistry; University of California, Davis; One Shields Avenue Davis Ca USA
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39
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Ma J, Kass SR. Electrostatically Enhanced Phosphoric Acids: A Tool in Brønsted Acid Catalysis. Org Lett 2016; 18:5812-5815. [DOI: 10.1021/acs.orglett.6b02750] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Jie Ma
- Department of Chemistry, University of Minnesota, 207 Pleasant Street SE, Minneapolis, Minnesota 55455, United States
| | - Steven R. Kass
- Department of Chemistry, University of Minnesota, 207 Pleasant Street SE, Minneapolis, Minnesota 55455, United States
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40
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Zurro M, Mancheño OG. 1,2,3,-Triazole-Based Catalysts: From Metal- to Supramolecular Organic Catalysis. CHEM REC 2016; 17:485-498. [DOI: 10.1002/tcr.201600104] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2016] [Accepted: 09/12/2016] [Indexed: 12/22/2022]
Affiliation(s)
- Mercedes Zurro
- Institute for Organic Chemistry; University of Regensburg; Universitätsstrasse 31 93053 Regensburg Germany
| | - Olga García Mancheño
- Institute for Organic Chemistry; University of Regensburg; Universitätsstrasse 31 93053 Regensburg Germany
- Straubing Center of Science for Renewable Resources (WZS); Schulgasse 16 94315 Straubing Germany
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41
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Bruña S, Garrido-Castro AF, Perles J, Montero-Campillo MM, Mó O, Kaifer AE, Cuadrado I. Multi-Ferrocene-Containing Silanols as Redox-Active Anion Receptors. Organometallics 2016. [DOI: 10.1021/acs.organomet.6b00559] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
| | | | | | | | | | - Angel E. Kaifer
- Center
for Supramolecular Science and Department of Chemistry, University of Miami, Coral Gables, Florida 33124-0431, United States
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42
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Ray Choudhury A, Mukherjee S. Enantioselective dearomatization of isoquinolines by anion-binding catalysis en route to cyclic α-aminophosphonates. Chem Sci 2016. [PMID: 28626550 PMCID: PMC5465551 DOI: 10.1039/c6sc02466a] [Citation(s) in RCA: 57] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
An enantioselective dearomatization of isoquinolines has been developed using chiral anion-binding catalysis. This transformation makes use of silyl phosphite as a nucleophile and generates cyclic α-aminophosphonates.
An enantioselective dearomatization of isoquinolines has been developed using chiral anion-binding catalysis. This transformation, catalyzed by a simple and easy to prepare tert-leucine-based thiourea derivative, makes use of silyl phosphite as a nucleophile and generates cyclic α-aminophosphonates. This is the first time asymmetric anion-binding catalysis has been applied to the synthesis of α-aminophosphonates.
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Affiliation(s)
- Abhijnan Ray Choudhury
- Department of Organic Chemistry , Indian Institute of Science , Bangalore 560 012 , India . ; ; Tel: +91-80-2293-2850
| | - Santanu Mukherjee
- Department of Organic Chemistry , Indian Institute of Science , Bangalore 560 012 , India . ; ; Tel: +91-80-2293-2850
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Hardman-Baldwin AM, Visco MD, Wieting JM, Stern C, Kondo SI, Mattson AE. Silanediol-Catalyzed Chromenone Functionalization. Org Lett 2016; 18:3766-9. [PMID: 27453257 DOI: 10.1021/acs.orglett.6b01783] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Promising levels of enantiocontrol are observed in the silanediol-catalyzed addition of silyl ketene acetals to benzopyrylium triflates. This rare example of enantioselective, intermolecular chromenone functionalization with carbonyl-containing nucleophiles has potential applications in the synthesis of bioactive chromanones and tetrahydroxanthones.
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Affiliation(s)
- Andrea M Hardman-Baldwin
- Department of Chemistry and Biochemistry, The Ohio State University , 100 West 18th Avenue, Columbus, Ohio 43210, United States
| | - Michael D Visco
- Department of Chemistry and Biochemistry, The Ohio State University , 100 West 18th Avenue, Columbus, Ohio 43210, United States
| | - Joshua M Wieting
- Department of Chemistry and Biochemistry, The Ohio State University , 100 West 18th Avenue, Columbus, Ohio 43210, United States
| | - Charlotte Stern
- Department of Chemistry and Biochemistry, The Ohio State University , 100 West 18th Avenue, Columbus, Ohio 43210, United States
| | - Shin-Ichi Kondo
- Department of Chemistry and Biochemistry, The Ohio State University , 100 West 18th Avenue, Columbus, Ohio 43210, United States
| | - Anita E Mattson
- Department of Chemistry and Biochemistry, The Ohio State University , 100 West 18th Avenue, Columbus, Ohio 43210, United States
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Visco MD, Wieting JM, Mattson AE. Carbon–Silicon Bond Formation in the Synthesis of Benzylic Silanes. Org Lett 2016; 18:2883-5. [PMID: 27255675 DOI: 10.1021/acs.orglett.6b01223] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Michael D. Visco
- The Ohio State University, Department of
Chemistry and Biochemistry, 100 West 18th Avenue, Columbus, Ohio 43210, United States
| | - Joshua M. Wieting
- The Ohio State University, Department of
Chemistry and Biochemistry, 100 West 18th Avenue, Columbus, Ohio 43210, United States
| | - Anita E. Mattson
- The Ohio State University, Department of
Chemistry and Biochemistry, 100 West 18th Avenue, Columbus, Ohio 43210, United States
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45
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Zurro M, Asmus S, Bamberger J, Beckendorf S, García Mancheño O. Chiral Triazoles in Anion-Binding Catalysis: New Entry to Enantioselective Reissert-Type Reactions. Chemistry 2016; 22:3785-93. [PMID: 26743138 DOI: 10.1002/chem.201504094] [Citation(s) in RCA: 61] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2015] [Indexed: 12/15/2022]
Abstract
Easily accessible and tunable chiral triazoles have been introduced as a novel class of C-H bond-based H-donors for anion-binding organocatalysis. They have proven to be effective catalysts for the dearomatization reaction of different N-heteroarenes. Although this dearomatization approach represents a powerful strategy to build chiral heterocycles, to date only a few catalytic methods to this end exist. In this work, the organocatalyzed enantioselective Reissert-type dearomatization of isoquinoline derivatives employing a number of structurally diverse chiral triazoles as anion-binding catalysts was realized. The here presented method was employed to synthesize a number of chiral 1,2-dihydroisoquinoline substrates with an enantioselectivity up to 86:14 e.r. Moreover, a thorough study of the determining parameters affecting the activity of this type of anion- binding catalysts was carried out.
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Affiliation(s)
- Mercedes Zurro
- Institute for Organic Chemistry, University of Regensburg, Universitätsstrasse 31, 93053, Regensburg, Germany.,Straubing Center of Science for Renewable Resources (WZS), Schulgasse 16, 94315, Straubing, Germany
| | - Sören Asmus
- Institute for Organic Chemistry, University of Regensburg, Universitätsstrasse 31, 93053, Regensburg, Germany
| | - Julia Bamberger
- Institute for Organic Chemistry, University of Regensburg, Universitätsstrasse 31, 93053, Regensburg, Germany
| | - Stephan Beckendorf
- Institute of Organic Chemistry, University of Münster, Corrensstrasse 40, 48149, Münster, Germany
| | - Olga García Mancheño
- Institute for Organic Chemistry, University of Regensburg, Universitätsstrasse 31, 93053, Regensburg, Germany. .,Straubing Center of Science for Renewable Resources (WZS), Schulgasse 16, 94315, Straubing, Germany.
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46
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Affiliation(s)
- Yang Fan
- Department
of Chemistry, University of Minnesota, 207 Pleasant Street, SE, Minneapolis, Minnesota 55455, United States
| | - Steven R. Kass
- Department
of Chemistry, University of Minnesota, 207 Pleasant Street, SE, Minneapolis, Minnesota 55455, United States
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48
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Shirakawa S, Liu S, Kaneko S, Kumatabara Y, Fukuda A, Omagari Y, Maruoka K. Tetraalkylammonium Salts as Hydrogen-Bonding Catalysts. Angew Chem Int Ed Engl 2015; 54:15767-70. [PMID: 26564098 DOI: 10.1002/anie.201508659] [Citation(s) in RCA: 65] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2015] [Indexed: 11/09/2022]
Abstract
Although the hydrogen-bonding ability of the α hydrogen atoms on tetraalkylammonium salts is often discussed with respect to phase-transfer catalysts, catalysis that utilizes the hydrogen-bond-donor properties of tetraalkylammonium salts remains unknown. Herein, we demonstrate hydrogen-bonding catalysis with newly designed tetraalkylammonium salt catalysts in Mannich-type reactions. The structure and the hydrogen-bonding ability of the new ammonium salts were investigated by X-ray diffraction analysis and NMR titration studies.
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Affiliation(s)
- Seiji Shirakawa
- Department of Environmental Science, Graduate School of Fisheries and Environmental Sciences, Nagasaki University, 1-14 Bunkyo-machi, Nagasaki 852-8521 (Japan) http://seijishirakawa.wix.com/greenchemistry.
| | - Shiyao Liu
- Department of Environmental Science, Graduate School of Fisheries and Environmental Sciences, Nagasaki University, 1-14 Bunkyo-machi, Nagasaki 852-8521 (Japan) http://seijishirakawa.wix.com/greenchemistry
| | - Shiho Kaneko
- Department of Environmental Science, Graduate School of Fisheries and Environmental Sciences, Nagasaki University, 1-14 Bunkyo-machi, Nagasaki 852-8521 (Japan) http://seijishirakawa.wix.com/greenchemistry
| | - Yusuke Kumatabara
- Department of Environmental Science, Graduate School of Fisheries and Environmental Sciences, Nagasaki University, 1-14 Bunkyo-machi, Nagasaki 852-8521 (Japan) http://seijishirakawa.wix.com/greenchemistry
| | - Airi Fukuda
- Department of Environmental Science, Graduate School of Fisheries and Environmental Sciences, Nagasaki University, 1-14 Bunkyo-machi, Nagasaki 852-8521 (Japan) http://seijishirakawa.wix.com/greenchemistry
| | - Yumi Omagari
- Department of Environmental Science, Graduate School of Fisheries and Environmental Sciences, Nagasaki University, 1-14 Bunkyo-machi, Nagasaki 852-8521 (Japan) http://seijishirakawa.wix.com/greenchemistry
| | - Keiji Maruoka
- Department of Chemistry, Graduate School of Science, Kyoto University, Sakyo, Kyoto 606-8502 (Japan).
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Shirakawa S, Liu S, Kaneko S, Kumatabara Y, Fukuda A, Omagari Y, Maruoka K. Tetraalkylammonium Salts as Hydrogen‐Bonding Catalysts. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201508659] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- Seiji Shirakawa
- Department of Environmental Science, Graduate School of Fisheries and Environmental Sciences, Nagasaki University, 1‐14 Bunkyo‐machi, Nagasaki 852‐8521 (Japan) http://seijishirakawa.wix.com/greenchemistry
| | - Shiyao Liu
- Department of Environmental Science, Graduate School of Fisheries and Environmental Sciences, Nagasaki University, 1‐14 Bunkyo‐machi, Nagasaki 852‐8521 (Japan) http://seijishirakawa.wix.com/greenchemistry
| | - Shiho Kaneko
- Department of Environmental Science, Graduate School of Fisheries and Environmental Sciences, Nagasaki University, 1‐14 Bunkyo‐machi, Nagasaki 852‐8521 (Japan) http://seijishirakawa.wix.com/greenchemistry
| | - Yusuke Kumatabara
- Department of Environmental Science, Graduate School of Fisheries and Environmental Sciences, Nagasaki University, 1‐14 Bunkyo‐machi, Nagasaki 852‐8521 (Japan) http://seijishirakawa.wix.com/greenchemistry
| | - Airi Fukuda
- Department of Environmental Science, Graduate School of Fisheries and Environmental Sciences, Nagasaki University, 1‐14 Bunkyo‐machi, Nagasaki 852‐8521 (Japan) http://seijishirakawa.wix.com/greenchemistry
| | - Yumi Omagari
- Department of Environmental Science, Graduate School of Fisheries and Environmental Sciences, Nagasaki University, 1‐14 Bunkyo‐machi, Nagasaki 852‐8521 (Japan) http://seijishirakawa.wix.com/greenchemistry
| | - Keiji Maruoka
- Department of Chemistry, Graduate School of Science, Kyoto University, Sakyo, Kyoto 606‐8502 (Japan)
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50
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Aiken S, Armitage B, Gabbutt CD, Heron BM. An intramolecular, Pd-mediated α-arylation route to 4-aryl-2-naphthols. Tetrahedron Lett 2015. [DOI: 10.1016/j.tetlet.2015.06.081] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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