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Sánchez-Molpeceres R, Martín L, Esteban N, Miguel JA, Maestro A, Andrés JM. Enantioselective Amination of 4-Substituted Pyrazolones Catalyzed by Oxindole-Containing Thioureas and by a Recyclable Linear-Polymer-Supported Analogue in a Continuous Flow Process. J Org Chem 2024; 89:330-344. [PMID: 38096132 PMCID: PMC10777414 DOI: 10.1021/acs.joc.3c02069] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2023] [Revised: 11/27/2023] [Accepted: 11/29/2023] [Indexed: 01/06/2024]
Abstract
A highly efficient organocatalytic amination of 4-substituted pyrazolones with azodicarboxylates mediated by a novel quinine-derived thiourea with a 3,3-diaryl-oxindole scaffold is reported. This synthetic method furnished 4-amino-5-pyrazolones in high yields and with excellent enantioselectivities (up to 97:3 er) at room temperature in short reaction times. Moreover, a linear-polymer-supported bifunctional thiourea, synthesized by reacting a bifunctional aromatic monomer (biphenyl) with isatin in superacidic media and further derivatization, was proven to be also an efficient heterogeneous organocatalyst for this α-amination reaction. The practical value of this process was demonstrated by the use of the immobilized catalyst in recycling experiments, maintaining the activity without additional reactivation, and in flow processes, allowing the synthesis of 4-amino-pyrazolone derivatives in a gram scale with high yield and enantioselectivity.
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Affiliation(s)
- Rodrigo Sánchez-Molpeceres
- SintACat,
IU CINQUIMA y Departamento de Química Orgánica, Facultad
de Ciencias, Universidad de Valladolid, Paseo Belén 7, Valladolid 47011, Spain
| | - Laura Martín
- SintACat,
IU CINQUIMA y Departamento de Química Orgánica, Facultad
de Ciencias, Universidad de Valladolid, Paseo Belén 7, Valladolid 47011, Spain
| | - Noelia Esteban
- CLiNuMat,
IU CINQUIMA y Departamento de Química Física y Química
Inorgánica, Facultad de Ciencias, Universidad de Valladolid, Paseo Belén 7, Valladolid 47011, Spain
| | - Jesús A. Miguel
- CLiNuMat,
IU CINQUIMA y Departamento de Química Física y Química
Inorgánica, Facultad de Ciencias, Universidad de Valladolid, Paseo Belén 7, Valladolid 47011, Spain
| | - Alicia Maestro
- SintACat,
IU CINQUIMA y Departamento de Química Orgánica, Facultad
de Ciencias, Universidad de Valladolid, Paseo Belén 7, Valladolid 47011, Spain
| | - José M. Andrés
- SintACat,
IU CINQUIMA y Departamento de Química Orgánica, Facultad
de Ciencias, Universidad de Valladolid, Paseo Belén 7, Valladolid 47011, Spain
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2
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Pathak C, Gogoi A, Devi A, Seth S. Polymers of Intrinsic Microporosity Based on Dibenzodioxin Linkage: Design, Synthesis, Properties, and Applications. Chemistry 2023; 29:e202301512. [PMID: 37303240 DOI: 10.1002/chem.202301512] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2023] [Revised: 06/10/2023] [Accepted: 06/12/2023] [Indexed: 06/13/2023]
Abstract
The development of polymers of intrinsic microporosity (PIMs) over the last two decades has established them as a distinct class of microporous materials, which combine the attributes of microporous solid materials and the soluble nature of glassy polymers. Due to their solubility in common organic solvents, PIMs are easily processable materials that potentially find application in membrane-based separation, catalysis, ion separation in electrochemical energy storage devices, sensing, etc. Dibenzodioxin linkage, Tröger's base, and imide bond-forming reactions have widely been utilized for synthesis of a large number of PIMs. Among these linkages, however, most of the studies have been based on dibenzodioxin-based PIMs. Therefore, this review focuses precisely on dibenzodioxin linkage chemistry. Herein, the design principles of different rigid and contorted monomer scaffolds are discussed, as well as synthetic strategies of the polymers through dibenzodioxin-forming reactions including copolymerization and postsynthetic modifications, their characteristic properties and potential applications studied so far. Towards the end, the prospects of these materials are examined with respect to their utility in industrial purposes. Further, the structure-property correlation of dibenzodioxin PIMs is analyzed, which is essential for tailored synthesis and tunable properties of these PIMs and their molecular level engineering for enhanced performances making these materials suitable for commercial usage.
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Affiliation(s)
| | - Abinash Gogoi
- Department of Applied Sciences, Tezpur University, Assam, India
| | - Arpita Devi
- Department of Applied Sciences, Tezpur University, Assam, India
| | - Saona Seth
- Department of Applied Sciences, Tezpur University, Assam, India
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3
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Lu X, Huang G, Liang F, Sun S, Chen Y, Liang Z. A highly efficient method to access unprotected C-3 bifunctional quaternary 3-allyl-3-(amino)oxindoles. Org Biomol Chem 2023; 21:3547-3551. [PMID: 37060142 DOI: 10.1039/d3ob00478c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/16/2023]
Abstract
A highly efficient Rh(II) catalyzed non-radical protocol to access NH-free C-3 bifunctional oxindoles, which possess 3-allyl and 3-amino simultaneously, was first achieved by employing an intermolecular [2,3]-sigmatropic rearrangement reaction between diazooxindoles and tertiary allylic amines. Utilizing readily available allylamines as the nitrogen and allyl source concurrently, a wide range of bio-active 3-allyl-3-(amino)oxindoles were obtained in excellent yields under very mild reaction conditions; meanwhile, the TON can be up to 90 000. Our study addresses a gap in the literature by investigating intermolecular rearrangements of ammonium ylides with diazoamides, which have been relatively understudied.
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Affiliation(s)
- Xunbo Lu
- School of Chemistry and Chemical Engineering, Laboratory of Marine Green Fine Chemicals, Lingnan Normal University, Zhanjiang, 524048, P. R. China.
| | - Guoling Huang
- School of Chemistry and Chemical Engineering, Laboratory of Marine Green Fine Chemicals, Lingnan Normal University, Zhanjiang, 524048, P. R. China.
| | - Fangpeng Liang
- School of Chemistry and Chemical Engineering, Laboratory of Marine Green Fine Chemicals, Lingnan Normal University, Zhanjiang, 524048, P. R. China.
| | - Siyu Sun
- Qiqihar Medical University, Qiqihar, 161006, P. R. China
| | - Yalin Chen
- School of Chemistry and Chemical Engineering, Laboratory of Marine Green Fine Chemicals, Lingnan Normal University, Zhanjiang, 524048, P. R. China.
| | - Zi Liang
- School of Chemistry and Chemical Engineering, Laboratory of Marine Green Fine Chemicals, Lingnan Normal University, Zhanjiang, 524048, P. R. China.
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4
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Yeo HM, Kim TH. Chiral Proline Amide‐Isothiouronium Salt Spaced with Diamine as an Efficient Bifunctional Organocatalyst for Enantioselective α‐Hydrazination of Aldehydes. ChemistrySelect 2023. [DOI: 10.1002/slct.202300060] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/07/2023]
Affiliation(s)
- Hyoung Min Yeo
- School of Chemical Engineering College of Engineering Chonnam National University Gwangju 61186 Republic of Korea
| | - Take Hyeon Kim
- School of Chemical Engineering College of Engineering Chonnam National University Gwangju 61186 Republic of Korea
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5
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Wu Z, Krishnamurthy S, Tummalapalli KSS, Antilla JC. Chiral Calcium Phosphate-Catalyzed Enantioselective Amination of 3-Aryl-2-oxindoles with Dibenzyl Azodicarboxylate. J Org Chem 2022; 87:8203-8212. [PMID: 35621216 DOI: 10.1021/acs.joc.2c00432] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A chiral calcium phosphate-catalyzed enantioselective amination of 2-oxindoles with dibenzyl azodicarboxylate has been developed, affording the products in consistently high yields and excellent enantioselectivity. This synthetic method features low catalyst loading and a high catalytic efficiency. Moreover, the practical value of this process is well demonstrated by a scale-up experiment and a trial of catalyst recovery and reuse.
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Affiliation(s)
- Zhenwei Wu
- Institute for Molecular Design and Synthesis, School of Pharmaceutical Science and Technology, Tianjin University, Tianjin 300072, P. R. China
| | - Suvratha Krishnamurthy
- Institute for Molecular Design and Synthesis, School of Pharmaceutical Science and Technology, Tianjin University, Tianjin 300072, P. R. China
| | - K S Satyanarayana Tummalapalli
- Institute for Molecular Design and Synthesis, School of Pharmaceutical Science and Technology, Tianjin University, Tianjin 300072, P. R. China
| | - Jon C Antilla
- Institute for Molecular Design and Synthesis, School of Pharmaceutical Science and Technology, Tianjin University, Tianjin 300072, P. R. China.,School of Science, Zhejiang Sci-Tech University, Hangzhou, Zhejiang 310018, P. R. China
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Yang W, Dong P, Xu J, Yang J, Liu X, Feng X. Enantioselective Synthesis of 3‐Substituted 3‐Amino‐2‐oxindoles by Amination with Anilines. Chemistry 2021; 27:9272-9275. [DOI: 10.1002/chem.202100829] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2021] [Indexed: 12/11/2022]
Affiliation(s)
- Wenkun Yang
- Key Laboratory of Green Chemistry &Technology Ministry of Education College of Chemistry Sichuan University Chengdu 610064 P. R. China
| | - Pei Dong
- Key Laboratory of Green Chemistry &Technology Ministry of Education College of Chemistry Sichuan University Chengdu 610064 P. R. China
| | - Jian Xu
- Key Laboratory of Green Chemistry &Technology Ministry of Education College of Chemistry Sichuan University Chengdu 610064 P. R. China
| | - Jian Yang
- Key Laboratory of Green Chemistry &Technology Ministry of Education College of Chemistry Sichuan University Chengdu 610064 P. R. China
| | - Xiaohua Liu
- Key Laboratory of Green Chemistry &Technology Ministry of Education College of Chemistry Sichuan University Chengdu 610064 P. R. China
| | - Xiaoming Feng
- Key Laboratory of Green Chemistry &Technology Ministry of Education College of Chemistry Sichuan University Chengdu 610064 P. R. China
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