1
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Jana K, Zhao Z, Musies J, Sparr C. Atroposelective Arene-Forming Wittig Reaction by Phosphorus P III/P V=O Redox Catalysis. Angew Chem Int Ed Engl 2024; 63:e202408159. [PMID: 38940901 DOI: 10.1002/anie.202408159] [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: 04/29/2024] [Revised: 06/25/2024] [Accepted: 06/26/2024] [Indexed: 06/29/2024]
Abstract
The Wittig reaction is renowned as exceptionally versatile method for converting a diversity of aldehydes and ketones into alkenes. Recently, strategies for chiral phosphine catalysis under PIII/PV=O redox cycling emerged to render this venerable transformation stereoselective. Herein, we describe that phosphine redox catalysis enables the enantioselective synthesis of pertinent biaryl atropisomers by means of a stereocontrolled arene-forming Wittig reaction. Key to the process is the release of an endogenous base from readily accessible tert-butyloxycarbonylated Morita-Baylis-Hillman adducts triggered by catalyst intramolecularization, permitting mild phosphine redox catalysis for atroposelective Wittig reactions. By this strategy, a broad diversity of biaryl atropisomers is obtained with up to 94 : 6 enantioselectivity.
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Affiliation(s)
- Kalipada Jana
- Department of Chemistry, University of Basel, St. Johanns-Ring 19, 4056, Basel, Switzerland
| | - Zhengxing Zhao
- Department of Chemistry, University of Basel, St. Johanns-Ring 19, 4056, Basel, Switzerland
| | - Janis Musies
- Department of Chemistry, University of Basel, St. Johanns-Ring 19, 4056, Basel, Switzerland
| | - Christof Sparr
- Department of Chemistry, University of Basel, St. Johanns-Ring 19, 4056, Basel, Switzerland
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2
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Purwa M, Chandrakanth G, Rana A, Mottafegh A, Kumar S, Kim DP, Singh AK. Auto-Optimized Electro-Flow Reactor Platform for the in-situ Reduction of P(V) Oxide to P(III) and Their Application. Chem Asian J 2024:e202400438. [PMID: 38923297 DOI: 10.1002/asia.202400438] [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: 04/20/2024] [Revised: 06/18/2024] [Accepted: 06/22/2024] [Indexed: 06/28/2024]
Abstract
Trivalent phosphine catalysis is mostly utilized to activate the carbon-carbon multiple bonds to form carbanion intermediate species and is highly sensitive to certain variables. Random manual multi-variables are critical for understanding the batch disabled regeneration of trivalent phosphine chemistry. We need the artificial intelligence-based system which can change the variable based on previously conducted failed experiment. Herein, we report an auto-optimized electro-micro-flow reactor platform for the in-situ reduction of stable P(V) oxide to sensitive P(III) and further utilized the method for Corey-Fuchs reaction.
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Affiliation(s)
- Mandeep Purwa
- Department of Organic Synthesis and Process Chemistry, CSIR-Indian Institute of Chemical Technology, Hyderabad, 500007, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, Uttar Pradesh, India
| | - Gaykwad Chandrakanth
- Department of Organic Synthesis and Process Chemistry, CSIR-Indian Institute of Chemical Technology, Hyderabad, 500007, India
| | - Abhilash Rana
- Department of Organic Synthesis and Process Chemistry, CSIR-Indian Institute of Chemical Technology, Hyderabad, 500007, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, Uttar Pradesh, India
| | - Amirreza Mottafegh
- Center for Intelligent Microprocess of Pharmaceutical Synthesis, Department of Chemical Engineering, Pohang University of Science and Technology (POSTECH), Pohang, 37673, Republic of Korea
| | - Sanjeev Kumar
- Department of Organic Synthesis and Process Chemistry, CSIR-Indian Institute of Chemical Technology, Hyderabad, 500007, India
| | - Dong-Pyo Kim
- Center for Intelligent Microprocess of Pharmaceutical Synthesis, Department of Chemical Engineering, Pohang University of Science and Technology (POSTECH), Pohang, 37673, Republic of Korea
| | - Ajay K Singh
- Department of Organic Synthesis and Process Chemistry, CSIR-Indian Institute of Chemical Technology, Hyderabad, 500007, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, Uttar Pradesh, India
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3
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Zhang J, Kong WY, Guo W, Tantillo DJ, Tang Y. Combined Computational and Experimental Study Reveals Complex Mechanistic Landscape of Brønsted Acid-Catalyzed Silane-Dependent P═O Reduction. J Am Chem Soc 2024; 146:13983-13999. [PMID: 38736283 DOI: 10.1021/jacs.4c02042] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/14/2024]
Abstract
The reaction mechanism of Brønsted acid-catalyzed silane-dependent P═O reduction has been elucidated through combined computational and experimental methods. Due to its remarkable chemo- and stereoselective nature, the Brønsted acid/silane reduction system has been widely employed in organophosphine-catalyzed transformations involving P(V)/P(III) redox cycle. However, the full mechanistic profile of this type of P═O reduction has yet to be clearly established to date. Supported by both DFT and experimental studies, our research reveals that the reaction likely proceeds through mechanisms other than the widely accepted "dual activation mode by silyl ester" or "acid-mediated direct P═O activation" mechanism. We propose that although the reduction mechanisms may vary with the substitution patterns of silane species, Brønsted acid generally activates the silane rather than the P═O group in transition structures. The proposed activation mode differs significantly from that associated with traditional Brønsted acid-catalyzed C═O reduction. The uniqueness of P═O reduction originates from the dominant Si/O═P orbital interactions in transition structures rather than the P/H-Si interactions. The comprehensive mechanistic landscape provided by us will serve as a guidance for the rational design and development of more efficient P═O reduction systems as well as novel organophosphine-catalyzed reactions involving P(V)/P(III) redox cycle.
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Affiliation(s)
- Jingyang Zhang
- School of Pharmaceutical Sciences, MOE Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology, Tsinghua University, Beijing 100084, China
| | - Wang-Yeuk Kong
- Department of Chemistry, University of California, Davis, Davis, California 95616, United States
| | - Wentao Guo
- Department of Chemistry, University of California, Davis, Davis, California 95616, United States
| | - Dean J Tantillo
- Department of Chemistry, University of California, Davis, Davis, California 95616, United States
| | - Yefeng Tang
- School of Pharmaceutical Sciences, MOE Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology, Tsinghua University, Beijing 100084, China
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4
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Xue J, Zhang YS, Huan Z, Luo HT, Dong L, Yang JD, Cheng JP. Phosphonium-Catalyzed Monoreduction of Bisphosphine Dioxides: Origin of Selectivity and Synthetic Applications. J Am Chem Soc 2024; 146:9335-9346. [PMID: 38501695 DOI: 10.1021/jacs.4c01361] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/20/2024]
Abstract
Controlling product selectivity in successive reactions of the same type is challenging owing to the comparable thermodynamic and kinetic properties of the reactions involved. Here, the synergistic interaction of the two phosphoryl groups in bisphosphine dioxides (BPDOs) with a bromo-phosphonium cation was studied experimentally to provide a practical tool for substrate-catalyst recognition. As the eventual result, we have developed a phosphonium-catalyzed monoreduction of chiral BPDOs to access an array of synthetically useful bisphosphine monoxides (BPMOs) with axial, spiro, and planar chirality, which are otherwise challenging to synthesize before. The reaction features excellent selectivity and impressive reactivity. It proceeds under mild conditions, avoiding the use of superstoichiometric amounts of additives and metal catalysts to simplify the synthetic procedure. The accessibility and scalability of the reaction allowed for the rapid construction of a ligand library for optimization of asymmetric Heck-type cyclization, laying the foundation for a broad range of applications of chiral BPMOs in catalysis.
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Affiliation(s)
- Jing Xue
- Center of Basic Molecular Science (CBMS), Department of Chemistry, Tsinghua University, Beijing 100084, China
| | - Yu-Shan Zhang
- Center of Basic Molecular Science (CBMS), Department of Chemistry, Tsinghua University, Beijing 100084, China
| | - Zhen Huan
- Center of Basic Molecular Science (CBMS), Department of Chemistry, Tsinghua University, Beijing 100084, China
| | - Hai-Tian Luo
- Center of Basic Molecular Science (CBMS), Department of Chemistry, Tsinghua University, Beijing 100084, China
| | - Likun Dong
- Center of Basic Molecular Science (CBMS), Department of Chemistry, Tsinghua University, Beijing 100084, China
| | - Jin-Dong Yang
- Center of Basic Molecular Science (CBMS), Department of Chemistry, Tsinghua University, Beijing 100084, China
- Haihe Laboratory of Sustainable Chemical Transformations, Tianjin 300192, China
| | - Jin-Pei Cheng
- Center of Basic Molecular Science (CBMS), Department of Chemistry, Tsinghua University, Beijing 100084, China
- State Key Laboratory of Elemento-Organic Chemistry, Nankai University, Tianjin 300071, China
- Haihe Laboratory of Sustainable Chemical Transformations, Tianjin 300192, China
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5
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Yin K, Wei M, Wang Z, Luo W, Li L. Tertiary Amine-Mediated Reductions of Phosphine Oxides to Phosphines. Org Lett 2023; 25:5236-5241. [PMID: 37428151 DOI: 10.1021/acs.orglett.3c01690] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/11/2023]
Abstract
The reduction of phosphine oxides without the use of highly reactive reductants represents a safer and more sustainable solution for recycling of organophosphorus compounds. Herein, we disclose an N,N,N',N'-tetramethylethylenediamine (TMEDA)-mediated reduction via an unusual intermolecular hydride transfer. Mechanistic studies suggest that TMEDA serves as a hydride donor, while the P(V) halophosphonium salt acts as the hydride acceptor. This methodology provides a scalable and efficient protocol to reduce phosphine oxides under mild conditions.
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Affiliation(s)
- Keshu Yin
- PCFM Lab and GDHPRC Lab, School of Chemistry, Sun Yat-sen University, Guangzhou 510275, P. R. China
| | - Mingjie Wei
- School of Pharmacy, Xianning Medical College, Hubei University of Science and Technology, Xianning 437100, P. R. China
| | - Zhenguo Wang
- PCFM Lab and GDHPRC Lab, School of Chemistry, Sun Yat-sen University, Guangzhou 510275, P. R. China
| | - Wenjun Luo
- PCFM Lab and GDHPRC Lab, School of Chemistry, Sun Yat-sen University, Guangzhou 510275, P. R. China
| | - Le Li
- PCFM Lab and GDHPRC Lab, School of Chemistry, Sun Yat-sen University, Guangzhou 510275, P. R. China
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6
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Xue J, Zhang YS, Huan Z, Yang JD, Cheng JP. Deoxygenation of Phosphine Oxides by P III/P V═O Redox Catalysis via Successive Isodesmic Reactions. J Am Chem Soc 2023. [PMID: 37410888 DOI: 10.1021/jacs.3c05270] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/08/2023]
Abstract
Deoxygenation of phosphine oxides is of great significance to synthesis of phosphorus ligands and relevant catalysts, as well as to the sustainability of phosphorus chemistry. However, the thermodynamic inertness of P═O bonds poses a severe challenge to their reduction. Previous approaches in this regard rely primarily on a type of P═O bond activation with either Lewis/Brønsted acids or stoichiometric halogenating reagents under harsh conditions. Here, we wish to report a novel catalytic strategy for facile and efficient deoxygenation of phosphine oxides via successive isodesmic reactions, whose thermodynamic driving force for breaking the strong P═O bond was compensated by a synchronous formation of another P═O bond. The reaction was enabled by PIII/P═O redox sequences with the cyclic organophosphorus catalyst and terminal reductant PhSiH3. This catalytic reaction avoids the use of the stoichiometric activator as in other cases and features a broad substrate scope, excellent reactivities, and mild reaction conditions. Preliminary thermodynamic and mechanistic investigations disclosed a dual synergistic role of the catalyst.
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Affiliation(s)
- Jing Xue
- Center of Basic Molecular Science (CBMS), Department of Chemistry, Tsinghua University, Beijing 100084, China
| | - Yu-Shan Zhang
- Center of Basic Molecular Science (CBMS), Department of Chemistry, Tsinghua University, Beijing 100084, China
| | - Zhen Huan
- Center of Basic Molecular Science (CBMS), Department of Chemistry, Tsinghua University, Beijing 100084, China
| | - Jin-Dong Yang
- Center of Basic Molecular Science (CBMS), Department of Chemistry, Tsinghua University, Beijing 100084, China
| | - Jin-Pei Cheng
- Center of Basic Molecular Science (CBMS), Department of Chemistry, Tsinghua University, Beijing 100084, China
- State Key Laboratory of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, China
- Haihe Laboratory of Sustainable Chemical Transformations, Tianjin 300192, China
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7
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Wang C, Ge Q, Xu C, Xing Z, Xiong J, Zheng Y, Duan WL. Photoinduced Copper-Catalyzed C(sp 3)-P Bond Formation by Coupling of Secondary Phosphines with N-(Acyloxy)phthalimides and N-Fluorocarboxamides. Org Lett 2023; 25:1583-1588. [PMID: 36826372 DOI: 10.1021/acs.orglett.3c00475] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/25/2023]
Abstract
A photoinduced copper-catalyzed C(sp3)-P bond formation has been developed by using N-(acyloxy)phthalimides as radical precursors and secondary phosphine boranes as coupling partners. A variety of alkyl carboxylic acid derivatives can be readily transformed into the corresponding phosphines with high reaction efficiency and structural diversity. Besides, utilizing the 1,5-HAT of the N-centered radical process, the δ C(sp3)-H bond can be coupled with secondary phosphines, which provides a novel method for the regioselective formation of C(sp3)-P bonds.
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Affiliation(s)
- Chuanyong Wang
- College of Chemistry and Chemical Engineering, Yangzhou University, 180 Siwangting Road, Yangzhou 225002, China
| | - Qiangqiang Ge
- College of Chemistry and Chemical Engineering, Yangzhou University, 180 Siwangting Road, Yangzhou 225002, China
| | - Cheng Xu
- College of Chemistry and Chemical Engineering, Yangzhou University, 180 Siwangting Road, Yangzhou 225002, China
| | - Zhongqiu Xing
- College of Chemistry and Chemical Engineering, Yangzhou University, 180 Siwangting Road, Yangzhou 225002, China
| | - Jianqi Xiong
- College of Chemistry and Chemical Engineering, Yangzhou University, 180 Siwangting Road, Yangzhou 225002, China
| | - Yu Zheng
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, International Innovation Center for Forest Chemicals and Materials, College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, China
| | - Wei-Liang Duan
- College of Chemistry and Chemical Engineering, Yangzhou University, 180 Siwangting Road, Yangzhou 225002, China.,School of Chemistry and Chemical Engineering, Shaanxi Normal University, 620 Xi Changan Street, Xi'an 710119, China
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8
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Xie C, Kim J, Mai BK, Cao S, Ye R, Wang XY, Liu P, Kwon O. Enantioselective Synthesis of Quaternary Oxindoles: Desymmetrizing Staudinger-Aza-Wittig Reaction Enabled by a Bespoke HypPhos Oxide Catalyst. J Am Chem Soc 2022; 144:21318-21327. [PMID: 36375169 PMCID: PMC10746329 DOI: 10.1021/jacs.2c09421] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
This paper describes a catalytic asymmetric Staudinger-aza-Wittig reaction of (o-azidoaryl)malonates, allowing access to chiral quaternary oxindoles through phosphine oxide catalysis. We designed a novel HypPhos oxide catalyst to enable the desymmetrizing Staudinger-aza-Wittig reaction through the PIII/PV═O redox cycle in the presence of a silane reductant and an IrI-based Lewis acid. The reaction occurs under mild conditions, with good functional group tolerance, a wide substrate scope, and excellent enantioselectivity. Density functional theory revealed that the enantioselectivity in the desymmetrizing reaction arose from the cooperative effects of the IrI species and the HypPhos catalyst. The utility of this methodology is demonstrated by the (formal) syntheses of seven alkaloid targets: (-)-gliocladin C, (-)-coerulescine, (-)-horsfiline, (+)-deoxyeseroline, (+)-esermethole, (+)-physostigmine, and (+)-physovenine.
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Affiliation(s)
- Changmin Xie
- Department of Chemistry and Biochemistry, University of California─Los Angeles, 607 Charles E. Young Dr. East, Los Angeles, California 90095-1569, United States
| | - Jacob Kim
- Department of Chemistry and Biochemistry, University of California─Los Angeles, 607 Charles E. Young Dr. East, Los Angeles, California 90095-1569, United States
| | - Binh Khanh Mai
- Department of Chemistry and Biochemistry, University of California─Los Angeles, 607 Charles E. Young Dr. East, Los Angeles, California 90095-1569, United States
| | - Shixuan Cao
- Department of Chemistry and Biochemistry, University of California─Los Angeles, 607 Charles E. Young Dr. East, Los Angeles, California 90095-1569, United States
| | - Rong Ye
- Department of Chemistry and Biochemistry, University of California─Los Angeles, 607 Charles E. Young Dr. East, Los Angeles, California 90095-1569, United States
| | - Xin-Yi Wang
- Department of Chemistry and Biochemistry, University of California─Los Angeles, 607 Charles E. Young Dr. East, Los Angeles, California 90095-1569, United States
| | - Peng Liu
- Department of Chemistry, University of Pittsburgh, Pittsburgh, Pennsylvania 15260, United States
| | - Ohyun Kwon
- Department of Chemistry and Biochemistry, University of California─Los Angeles, 607 Charles E. Young Dr. East, Los Angeles, California 90095-1569, United States
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9
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Xue J, Zhang YS, Huan Z, Yang JD, Cheng JP. Catalytic Vilsmeier-Haack Reactions for C1-Deuterated Formylation of Indoles. J Org Chem 2022; 87:15539-15546. [PMID: 36348629 DOI: 10.1021/acs.joc.2c02085] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
The Vilsmeier-Haack reaction is a powerful tool to introduce formyl groups into electron-rich arenes, but its wide application is significantly restricted by stoichiometric employment of caustic POCl3. Herein, we reported a catalytic version of the Vilsmeier-Haack reaction enabled by a P(III)/P(V)═O cycle. This catalytic reaction provides a facile and efficient route for the direct construction of C1-deuterated indol-3-carboxaldehyde under mild conditions with stoichiometric DMF-d7 as the deuterium source. The products feature a remarkably higher deuteration level (>99%) than previously reported ones and are not contaminated by the likely unselective deuteration at other sites. The present transformation can also be used to transfer other carbonyl groups. Further downstream derivatizations of these deuterated products manifested their potential applications in the synthesis of deuterated bioactive molecules. Mechanistic insight was disclosed from studies of kinetics and intermediates.
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Affiliation(s)
- Jing Xue
- Center of Basic Molecular Science (CBMS), Department of Chemistry, Tsinghua University, Beijing 100084, China
| | - Yu-Shan Zhang
- Center of Basic Molecular Science (CBMS), Department of Chemistry, Tsinghua University, Beijing 100084, China
| | - Zhen Huan
- Center of Basic Molecular Science (CBMS), Department of Chemistry, Tsinghua University, Beijing 100084, China
| | - Jin-Dong Yang
- Center of Basic Molecular Science (CBMS), Department of Chemistry, Tsinghua University, Beijing 100084, China
| | - Jin-Pei Cheng
- Center of Basic Molecular Science (CBMS), Department of Chemistry, Tsinghua University, Beijing 100084, China.,State Key Laboratory of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, China.,Haihe Laboratory of Sustainable Chemical Transformations, Keyan West Road, Tianjin 300192, China
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10
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Großmann LM, Beier V, Duttenhofer L, Lennartz L, Opatz T. An Iodide-Mediated Anodic Amide Coupling. Chemistry 2022; 28:e202201768. [PMID: 35835720 PMCID: PMC9804404 DOI: 10.1002/chem.202201768] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2022] [Indexed: 01/05/2023]
Abstract
The ubiquity of amide bonds, present in natural products and common pharmaceuticals renders this functional group one of the most prevalent in organic chemistry. Despite its importance and a wide variety of existing methods for its formation, the latter still can be a challenge for classical activating reagents such as chloridating agents or carbodiimides. As the spent reagents often cannot be recycled, the development of more sustainable methods is highly desirable. Herein, we report an operationally simple and mild indirect electrochemical protocol to effect the condensation of carboxylic acids with amines, forming a wide variety of carboxamides.
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Affiliation(s)
- Luca Marius Großmann
- Department of ChemistryJohannes Gutenberg University MainzDuesbergweg 10–1455128MainzGermany
| | - Vera Beier
- Department of ChemistryJohannes Gutenberg University MainzDuesbergweg 10–1455128MainzGermany
| | - Lea Duttenhofer
- Department of ChemistryJohannes Gutenberg University MainzDuesbergweg 10–1455128MainzGermany
| | - Laura Lennartz
- Department of ChemistryJohannes Gutenberg University MainzDuesbergweg 10–1455128MainzGermany
| | - Till Opatz
- Department of ChemistryJohannes Gutenberg University MainzDuesbergweg 10–1455128MainzGermany
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11
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Horsley Downie TM, Mahon MF, Lowe JP, Bailey RM, Liptrot DJ. A Copper(I) Platform for One-Pot P–H Bond Formation and Hydrophosphination of Heterocumulenes. ACS Catal 2022. [DOI: 10.1021/acscatal.2c02199] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
| | - Mary F. Mahon
- Department of Chemistry, University of Bath, Bath BA2 7AY U.K
| | - John P. Lowe
- Department of Chemistry, University of Bath, Bath BA2 7AY U.K
| | - Rowan M. Bailey
- Department of Chemistry, University of Bath, Bath BA2 7AY U.K
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12
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Zhang L, Liu C, Yang L, Cao L, Liang C, Sun M, Ma Y, Cheng R, Ye J. Synthesis of triarylphosphines from arylammonium salts via one-pot transition-metal-free C-P coupling. Org Biomol Chem 2022; 20:3897-3901. [PMID: 35481827 DOI: 10.1039/d2ob00547f] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
A nucleophilic aromatic substitution (SNAr) reaction that allowed transition-metal-free C-P bond construction via C-N bond cleavage was developed. The coupling between aryltrimethylammonium salts and secondary phosphines from the in situ reduction of diarylphosphine oxides led to the formation of diverse triarylphosphines with various functional groups. This one-pot process was not only a pertinent SNAr precedent but also a favorable transition-metal-free alternative for C-P coupling.
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Affiliation(s)
- Lei Zhang
- Engineering Research Centre of Pharmaceutical Process Chemistry, Ministry of Education, School of Pharmacy, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China.
| | - Chengyu Liu
- Engineering Research Centre of Pharmaceutical Process Chemistry, Ministry of Education, School of Pharmacy, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China.
| | - Lei Yang
- Engineering Research Centre of Pharmaceutical Process Chemistry, Ministry of Education, School of Pharmacy, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China.
| | - Liming Cao
- Engineering Research Centre of Pharmaceutical Process Chemistry, Ministry of Education, School of Pharmacy, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China.
| | - Chaoming Liang
- School of Biomedical and Pharmaceutical Sciences, Guangdong University of Technology, Guangzhou 510006, China.
| | - Maolin Sun
- School of Biomedical and Pharmaceutical Sciences, Guangdong University of Technology, Guangzhou 510006, China.
| | - Yueyue Ma
- School of Biomedical and Pharmaceutical Sciences, Guangdong University of Technology, Guangzhou 510006, China.
| | - Ruihua Cheng
- School of Biomedical and Pharmaceutical Sciences, Guangdong University of Technology, Guangzhou 510006, China.
| | - Jinxing Ye
- Engineering Research Centre of Pharmaceutical Process Chemistry, Ministry of Education, School of Pharmacy, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China. .,School of Biomedical and Pharmaceutical Sciences, Guangdong University of Technology, Guangzhou 510006, China.
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13
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Chakraborty B, Rajput A, Soni M. Electroreduction: A sustainable and less energy‐intensive approach compared to chemical reduction for phosphine oxide recycling to phosphine. ChemElectroChem 2022. [DOI: 10.1002/celc.202101658] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Biswarup Chakraborty
- Indian Institute of Technology Delhi Department of Chemistry Hauz Khas 110016 New Delhi INDIA
| | - Anubha Rajput
- IIT Delhi: Indian Institute of Technology Delhi Department of Chemistry Hauz Khas 110016 INDIA
| | - Monika Soni
- IIT Delhi: Indian Institute of Technology Delhi Department of Chemistry Hauz Khas 110016 Delhi INDIA
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14
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Cui P, Li S, Wang X, Li M, Wang C, Wu L. Visible-Light-Promoted Unsymmetrical Phosphine Synthesis from Benzylamines. Org Lett 2022; 24:1566-1570. [PMID: 35157457 DOI: 10.1021/acs.orglett.2c00317] [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
Herein, by applying visible-light photoredox catalysis, we have achieved the catalytic deaminative alkylation of diphenylphosphine and phenyl phosphine with benzylamine-derived Katritzky salts at room temperature. The use of Eosin Y as photoredox catalyst and visible light can largely promote the reaction. A series of unsymmetrical tertiary phosphines were successfully synthesized, including phosphines with three different substituents that are otherwise difficult to obtain.
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Affiliation(s)
- Penglei Cui
- College of Science, Hebei Agricultural University, Baoding 071001, P. R. China
| | - Sida Li
- State Key Laboratory for Oxo Synthesis and Selective Oxidation, Suzhou Research Institute of LICP, Lanzhou Institute of Chemical Physics (LICP), Chinese Academy of Sciences, Lanzhou 730000, P. R. China.,University of Chinese Academy of Sciences, Beijing 100049, P. R. China
| | - Xianjin Wang
- State Key Laboratory for Oxo Synthesis and Selective Oxidation, Suzhou Research Institute of LICP, Lanzhou Institute of Chemical Physics (LICP), Chinese Academy of Sciences, Lanzhou 730000, P. R. China.,University of Chinese Academy of Sciences, Beijing 100049, P. R. China
| | - Ming Li
- College of Science, Hebei Agricultural University, Baoding 071001, P. R. China
| | - Chun Wang
- College of Science, Hebei Agricultural University, Baoding 071001, P. R. China
| | - Lipeng Wu
- State Key Laboratory for Oxo Synthesis and Selective Oxidation, Suzhou Research Institute of LICP, Lanzhou Institute of Chemical Physics (LICP), Chinese Academy of Sciences, Lanzhou 730000, P. R. China
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15
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Fang C, Wei B, Ma D. Cu/
Picolinamides‐Catalyzed
Coupling of (Hetero)aryl Halides with Secondary Phosphine Oxides and Phosphite
†. CHINESE J CHEM 2021. [DOI: 10.1002/cjoc.202100354] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Affiliation(s)
- Chao Fang
- Department of Natural Medicine School of Pharmacy Fudan University, 826 Zhangheng Road Shanghai 201203 China
| | - Bangguo Wei
- Department of Natural Medicine School of Pharmacy Fudan University, 826 Zhangheng Road Shanghai 201203 China
| | - Dawei Ma
- State Key Laboratory of Bioorganic & Natural Products Chemistry, Center for Excellence in Molecular Synthesis Shanghai Institute of Organic Chemistry University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Lu Shanghai 200032 China
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16
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Nagahara S, Okada Y, Kitano Y, Chiba K. Biphasic electrochemical peptide synthesis. Chem Sci 2021; 12:12911-12917. [PMID: 34745521 PMCID: PMC8513919 DOI: 10.1039/d1sc03023j] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2021] [Accepted: 09/01/2021] [Indexed: 12/13/2022] Open
Abstract
The large amount of waste derived from coupling reagents is a serious drawback of peptide synthesis from a green chemistry viewpoint. To overcome this issue, we report an electrochemical peptide synthesis in a biphasic system. Anodic oxidation of triphenylphosphine (Ph3P) generates a phosphine radical cation, which serves as the coupling reagent to activate carboxylic acids, and produces triphenylphosphine oxide (Ph3P
Created by potrace 1.16, written by Peter Selinger 2001-2019
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O) as a stoichiometric byproduct. In combination with a soluble tag-assisted liquid-phase peptide synthesis, the selective recovery of desired peptides and Ph3PO was achieved. Given that methods to reduce Ph3PO to Ph3P have been reported, Ph3PO could be a recyclable byproduct unlike byproducts from typical coupling reagents. Moreover, a commercial peptide active pharmaceutical ingredient (API), leuprorelin, was successfully synthesized without the use of traditional coupling reagents. The large amount of waste derived from coupling reagents is a serious drawback of peptide synthesis from a green chemistry viewpoint.![]()
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Affiliation(s)
- Shingo Nagahara
- Department of Applied Biological Science, Tokyo University of Agriculture and Technology 3-5-8- Saiwai-cho Fuchu Tokyo 183-8509 Japan
| | - Yohei Okada
- Department of Applied Biological Science, Tokyo University of Agriculture and Technology 3-5-8- Saiwai-cho Fuchu Tokyo 183-8509 Japan
| | - Yoshikazu Kitano
- Department of Applied Biological Science, Tokyo University of Agriculture and Technology 3-5-8- Saiwai-cho Fuchu Tokyo 183-8509 Japan
| | - Kazuhiro Chiba
- Department of Applied Biological Science, Tokyo University of Agriculture and Technology 3-5-8- Saiwai-cho Fuchu Tokyo 183-8509 Japan
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17
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Laye C, Lusseau J, Robert F, Landais Y. The Trityl‐Cation Mediated Phosphine Oxides Reduction. Adv Synth Catal 2021. [DOI: 10.1002/adsc.202100189] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Claire Laye
- Univ. Bordeaux CNRS Institut des Sciences Moléculaires (ISM) UMR-5255 F-33400 Talence France
| | - Jonathan Lusseau
- Univ. Bordeaux CNRS Institut des Sciences Moléculaires (ISM) UMR-5255 F-33400 Talence France
| | - Frédéric Robert
- Univ. Bordeaux CNRS Institut des Sciences Moléculaires (ISM) UMR-5255 F-33400 Talence France
| | - Yannick Landais
- Univ. Bordeaux CNRS Institut des Sciences Moléculaires (ISM) UMR-5255 F-33400 Talence France
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18
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Sowa S, Pietrusiewicz KM. Reduction of tertiary phosphine oxides to phosphine-boranes using Ti(Oi-Pr)4/BH3-THF. Tetrahedron 2021. [DOI: 10.1016/j.tet.2021.132057] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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19
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Boden P, Di Martino‐Fumo P, Busch JM, Rehak FR, Steiger S, Fuhr O, Nieger M, Volz D, Klopper W, Bräse S, Gerhards M. Investigation of Luminescent Triplet States in Tetranuclear Cu I Complexes: Thermochromism and Structural Characterization. Chemistry 2021; 27:5439-5452. [PMID: 33176033 PMCID: PMC8048975 DOI: 10.1002/chem.202004539] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2020] [Revised: 11/09/2020] [Indexed: 11/10/2022]
Abstract
To develop new and flexible CuI containing luminescent substances, we extend our previous investigations on two metal-centered species to four metal-centered complexes. These complexes could be a basis for designing new organic light-emitting diode (OLED) relevant species. Both the synthesis and in-depth spectroscopic analysis, combined with high-level theoretical calculations are presented on a series of tetranuclear CuI complexes with a halide containing Cu4 X4 core (X=iodide, bromide or chloride) and two 2-(diphenylphosphino)pyridine bridging ligands with a methyl group in para (4-Me) or ortho (6-Me) position of the pyridine ring. The structure of the electronic ground state is characterized by X-ray diffraction, NMR, and IR spectroscopy with the support of theoretical calculations. In contrast to the para system, the complexes with ortho-substituted bridging ligands show a remarkable and reversible temperature-dependent dual phosphorescence. Here, we combine for the first time the luminescence thermochromism with time-resolved FTIR spectroscopy. Thus, we receive experimental data on the structures of the two triplet states involved in the luminescence thermochromism. The transient IR spectra of the underlying triplet metal/halide-to-ligand charge transfer (3 M/XLCT) and cluster-centered (3 CC) states were obtained and interpreted by comparison with calculated vibrational spectra. The systematic and significant dependence of the bridging halides was analyzed.
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Affiliation(s)
- Pit Boden
- Chemistry Department and Research Center OptimasTU KaiserslauternErwin-Schrödinger-Straße 5267663KaiserslauternGermany
| | - Patrick Di Martino‐Fumo
- Chemistry Department and Research Center OptimasTU KaiserslauternErwin-Schrödinger-Straße 5267663KaiserslauternGermany
| | - Jasmin M. Busch
- Institute of Organic Chemistry (IOC)Karlsruhe Institute of, Technology (KIT)Fritz-Haber-Weg 676131KarlsruheGermany
| | - Florian R. Rehak
- Institute of Physical Chemistry–Theoretical ChemistryKarlsruhe Institute of Technology (KIT)Fritz-Haber-Weg 276131KarlsruheGermany
| | - Sophie Steiger
- Chemistry Department and Research Center OptimasTU KaiserslauternErwin-Schrödinger-Straße 5267663KaiserslauternGermany
| | - Oliver Fuhr
- Karlsruhe Institute of Nanotechnology (INT) and Karlsruhe Nano-Micro, Facility (KNMF)Karlsruhe Institute of Technology (KIT)Hermann-von-Helmholtz-Platz 176344Eggenstein-LeopoldshafenGermany
| | - Martin Nieger
- Department of ChemistryUniversity of HelsinkiP.O.Box55 (A.I. Virtasen aukio 1)00014HelsinkiFinland
| | - Daniel Volz
- Institute of Organic Chemistry (IOC)Karlsruhe Institute of, Technology (KIT)Fritz-Haber-Weg 676131KarlsruheGermany
| | - Willem Klopper
- Institute of Physical Chemistry–Theoretical ChemistryKarlsruhe Institute of Technology (KIT)Fritz-Haber-Weg 276131KarlsruheGermany
| | - Stefan Bräse
- Institute of Organic Chemistry (IOC)Karlsruhe Institute of, Technology (KIT)Fritz-Haber-Weg 676131KarlsruheGermany
- Institute of Biological and Chemical Systems–Functional Molecular Systems, (IBCS-FMS)Karlsruhe Institute of Technology (KIT)Hermann-von-Helmholtz-Platz 176344Eggenstein-LeopoldshafenGermany
| | - Markus Gerhards
- Chemistry Department and Research Center OptimasTU KaiserslauternErwin-Schrödinger-Straße 5267663KaiserslauternGermany
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20
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Kapuśniak Ł, Plessow PN, Trzybiński D, Woźniak K, Hofmann P, Jolly PI. A Mild One-Pot Reduction of Phosphine(V) Oxides Affording Phosphines(III) and Their Metal Catalysts. Organometallics 2021; 40:693-701. [PMID: 33867621 PMCID: PMC8043083 DOI: 10.1021/acs.organomet.0c00788] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2020] [Indexed: 02/06/2023]
Abstract
![]()
The metal-free reduction
of a range of phosphine(V) oxides employing
oxalyl chloride as an activating agent and hexachlorodisilane as reducing
reagent has been achieved under mild reaction conditions. The method
was successfully applied to the reduction of industrial waste byproduct
triphenylphosphine(V) oxide, closing the phosphorus cycle to cleanly
regenerate triphenylphosphine(III). Mechanistic studies and quantum
chemical calculations support the attack of the dissociated chloride
anion of intermediated phosphonium salt at the silicon of the disilane
as the rate-limiting step for deprotection. The exquisite purity of
the resultant phosphine(III) ligands after the simple removal of volatiles
under reduced pressure circumvents laborious purification prior to
metalation and has permitted the facile formation of important transition
metal catalysts.
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Affiliation(s)
- Łukasz Kapuśniak
- Biological and Chemical Research Centre, Faculty of Chemistry, University of Warsaw, Żwirki i Wigury Street 101, 02-089 Warsaw, Poland
| | - Philipp N Plessow
- Institute of Catalysis Research and Technology, Karlsruhe Institute of Technology, Hermann-von-Helmholtz-Platz 1, D-76344 Eggenstein-Leopoldshafen, Germany
| | - Damian Trzybiński
- Biological and Chemical Research Centre, Faculty of Chemistry, University of Warsaw, Żwirki i Wigury Street 101, 02-089 Warsaw, Poland
| | - Krzysztof Woźniak
- Biological and Chemical Research Centre, Faculty of Chemistry, University of Warsaw, Żwirki i Wigury Street 101, 02-089 Warsaw, Poland
| | - Peter Hofmann
- Organisch-Chemisches Institut, Heidelberg University, Im Neuenheimer Feld 270, 69120 Heidelberg, Germany.,Catalysis Research Laboratory (CaRLa), Im Neuenheimer Feld 584, 69120 Heidelberg, Germany
| | - Phillip Iain Jolly
- Biological and Chemical Research Centre, Faculty of Chemistry, University of Warsaw, Żwirki i Wigury Street 101, 02-089 Warsaw, Poland.,Organisch-Chemisches Institut, Heidelberg University, Im Neuenheimer Feld 270, 69120 Heidelberg, Germany.,Catalysis Research Laboratory (CaRLa), Im Neuenheimer Feld 584, 69120 Heidelberg, Germany
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21
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Keglevich G. Microwaves as "Co-Catalysts" or as Substitute for Catalysts in Organophosphorus Chemistry. Molecules 2021; 26:1196. [PMID: 33672361 PMCID: PMC7926777 DOI: 10.3390/molecules26041196] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2021] [Revised: 02/18/2021] [Accepted: 02/19/2021] [Indexed: 11/16/2022] Open
Abstract
The purpose of this review is to summarize the importance of microwave (MW) irradiation as a kind of catalyst in organophosphorus chemistry. Slow or reluctant reactions, such as the Diels-Alder cycloaddition or an inverse-Wittig type reaction, may be performed efficiently under MW irradiation. The direct esterification of phosphinic and phosphonic acids, which is practically impossible on conventional heating, may be realized under MW conditions. Ionic liquid additives may promote further esterifications. The opposite reaction, the hydrolysis of P-esters, has also relevance among the MW-assisted transformations. A typical case is when the catalysts are substituted by MWs, which is exemplified by the reduction of phosphine oxides, and by the Kabachnik-Fields condensation affording α-aminophosphonic derivatives. Finally, the Hirao P-C coupling reaction may serve as an example, when the catalyst may be simplified under MW conditions. All of the examples discussed fulfill the expectations of green chemistry.
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Affiliation(s)
- György Keglevich
- Department of Organic Chemistry and Technology, Budapest University of Technology and Economics, 1521 Budapest, Hungary
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22
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Chen X, Liu X, Zhu H, Wang Z. Palladium-catalyzed C–P bond activation of aroyl phosphine oxides without the adjacent “anchoring atom”. Tetrahedron 2021. [DOI: 10.1016/j.tet.2020.131912] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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23
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New trivalent phosphorus containing poly(arylene ether)s as alternative reactants for the Mitsunobu reaction. Eur Polym J 2020. [DOI: 10.1016/j.eurpolymj.2020.110045] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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24
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Chakraborty B, Menezes PW, Driess M. Beyond CO2 Reduction: Vistas on Electrochemical Reduction of Heavy Non-metal Oxides with Very Strong E—O Bonds (E = Si, P, S). J Am Chem Soc 2020; 142:14772-14788. [DOI: 10.1021/jacs.0c05862] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Biswarup Chakraborty
- Department of Chemistry: Metalorganics and Inorganic Materials, Technische Universität Berlin, Straße des 17 Juni 135, Sekr. C2, 10623 Berlin, Germany
| | - Prashanth W. Menezes
- Department of Chemistry: Metalorganics and Inorganic Materials, Technische Universität Berlin, Straße des 17 Juni 135, Sekr. C2, 10623 Berlin, Germany
| | - Matthias Driess
- Department of Chemistry: Metalorganics and Inorganic Materials, Technische Universität Berlin, Straße des 17 Juni 135, Sekr. C2, 10623 Berlin, Germany
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25
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Convergent Synthesis of Polysubstituted Furans via Catalytic Phosphine Mediated Multicomponent Reactions. Molecules 2019; 24:molecules24244595. [PMID: 31888142 PMCID: PMC6943692 DOI: 10.3390/molecules24244595] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2019] [Revised: 12/10/2019] [Accepted: 12/13/2019] [Indexed: 11/29/2022] Open
Abstract
Tri- or tetrasubstituted furans have been prepared from terminal activated olefins and acyl chlorides or anhydrides by a multicomponental convergent synthesis mode. Instead of stoichiometric nBu3P, only catalytic nBu3P or nBu3P=O is needed to furnish the furans in modest to excellent yields with a good functional group tolerance under the aid of reducing agent silane. This synthetic method features a silane-driven catalytic intramolecular Wittig reaction as a key annulation step and represents the first successful application of catalytic Wittig reaction in multicomponent cascade reaction.
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26
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Abstract
The P-heterocyclic field forms a special part of organophosphorus chemistry,
and is a special discipline within heterocyclic chemistry. The relevant results accumulated
in the group of the author of this minireview in last 5 years are summarized. After
surveying the conformational situation of cyclic phosphinates, their Microwave
(MW)-assisted direct esterification and the T3P®-promoted esterification are discussed.
The next chapters describe newer results regarding the interpretation and modelling of the
rate enhancing effect of MWs, and on an important, but somewhat neglected field, the
hydrolysis of phosphinates. New results on the ring enlargement of 5-membered
unsaturated P-heterocycles to 6-ring species, as well as on the synthesis of
7-phosphanorbornene derivatives, and their refunctionalization are also included. Novel
findings on the preparation of cyclic amides and imides are also explored. Last but not least, the user-friendly
deoxygenations of cyclic phosphine oxides elaborated by us are shown. The reader will be able to discover
green chemical considerations and accomplishments throughout the series of organophosphorus
transformations reviewed.
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Affiliation(s)
- György Keglevich
- Department of Organic Chemistry and Technology, Budapest University of Technology and Economics, 1521 Budapest, Hungary
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27
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Lee KL, Feld J, Ben‐Tal Y, Guo Z, Hume P, Leitao EM. Facile Substituent Exchange at
H
‐Phosphonate Diesters Limiting an Effective Synthesis of
D
‐Phosphonate Diesters. ASIAN J ORG CHEM 2019. [DOI: 10.1002/ajoc.201900430] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Keng Lung Lee
- School of Chemical SciencesUniversity of Auckland, Private Bag 92019 Auckland 1142 New Zealand
| | - Joey Feld
- School of Chemical SciencesUniversity of Auckland, Private Bag 92019 Auckland 1142 New Zealand
| | - Yael Ben‐Tal
- School of Chemical SciencesUniversity of Auckland, Private Bag 92019 Auckland 1142 New Zealand
| | - Zhaoyang Guo
- School of Chemical SciencesUniversity of Auckland, Private Bag 92019 Auckland 1142 New Zealand
| | - Paul Hume
- School of Chemical and Physical SciencesVictoria University Wellington, Wellington 6010 New Zealand
- The MacDiarmid Institute for Advanced Materials and Nanotechnology New Zealand
| | - Erin M. Leitao
- School of Chemical SciencesUniversity of Auckland, Private Bag 92019 Auckland 1142 New Zealand
- The MacDiarmid Institute for Advanced Materials and Nanotechnology New Zealand
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28
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Lenstra DC, Wolf JJ, Mecinović J. Catalytic Staudinger Reduction at Room Temperature. J Org Chem 2019; 84:6536-6545. [PMID: 31050295 DOI: 10.1021/acs.joc.9b00831] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
We report an efficient catalytic Staudinger reduction at room temperature that enables the preparation of a structurally diverse set of amines from azides in excellent yields. The reaction is based on the use of catalytic amounts of triphenylphosphine as a phosphine source and diphenyldisiloxane as a reducing agent. Our catalytic Staudinger reduction exhibits a high chemoselectivity, as exemplified by reduction of azides over other common functionalities, including nitriles, alkenes, alkynes, esters, and ketones.
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Affiliation(s)
- Danny C Lenstra
- Institute for Molecules and Materials , Radboud University , Heyendaalseweg 135 , Nijmegen 6525 AJ , The Netherlands
| | - Joris J Wolf
- Institute for Molecules and Materials , Radboud University , Heyendaalseweg 135 , Nijmegen 6525 AJ , The Netherlands
| | - Jasmin Mecinović
- Institute for Molecules and Materials , Radboud University , Heyendaalseweg 135 , Nijmegen 6525 AJ , The Netherlands.,Department of Physics, Chemistry and Pharmacy , University of Southern Denmark , Campusvej 55 , Odense 5230 , Denmark
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29
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Rahman MS, Yoshikai N. Synthesis and Properties of Phospha[5]helicenes Bearing an Inner-Rim Phosphorus Center. Org Lett 2019; 21:3232-3236. [PMID: 30990704 DOI: 10.1021/acs.orglett.9b00955] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
New phospha[5]helicene derivatives featuring angular fusion of phosphole and carbohelicene moieties have been synthesized using 7-hydroxybenzo[ b]phosphole oxide as a key intermediate, which can be regioselectively prepared through one-pot multicomponent coupling. The structural behavior of the present phospha[5]helicene oxide, sulfide, and gold complex in the solid and solution states, along with DFT calculations, demonstrated close correlation between the P-centered chirality and the helical chirality as well as facile helicity inversion and equilibrium between the diastereomers in solution.
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Affiliation(s)
- Md Shafiqur Rahman
- Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences , Nanyang Technological University , Singapore 637371 , Singapore
| | - Naohiko Yoshikai
- Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences , Nanyang Technological University , Singapore 637371 , Singapore
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30
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Application of the Microwave Technique in Continuous Flow Processing of Organophosphorus Chemical Reactions. MATERIALS 2019; 12:ma12050788. [PMID: 30866480 PMCID: PMC6427270 DOI: 10.3390/ma12050788] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/08/2019] [Revised: 02/28/2019] [Accepted: 03/01/2019] [Indexed: 12/22/2022]
Abstract
The microwave (MW) technique is an efficient tool in the realization of organic reactions, as well as in the analytical field and in the food industry. The continuous flow approach is of special interest as a promising way to scale-up MW-assisted syntheses. Besides summarizing the batch precedents, this review focuses on the utilization of the MW technique in the continuous-flow realization of organophosphorus transformations. The advantages of the continuous flow technique against the batch accomplishment are also shown. A few materials chemistry-related applications are also mentioned.
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31
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Jasem YA, El-Esawi R, Thiemann T. Wittig- and Horner–Wadsworth–Emmons-Olefination Reactions with Stabilised and Semi-Stabilised Phosphoranes and Phosphonates under Non-Classical Conditions. JOURNAL OF CHEMICAL RESEARCH 2019. [DOI: 10.3184/174751914x14044684705710] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Affiliation(s)
- Yosef Al Jasem
- Department of Chemical Engineering, Faculty of Engineering, United Arab Emirates University, Al Ain, Abu Dhabi, United Arab Emirates
| | - Randa El-Esawi
- Department of Chemistry, Faculty of Science, United Arab Emirates University, Al Ain, Abu Dhabi, United Arab Emirates
| | - Thies Thiemann
- Department of Chemistry, Faculty of Science, United Arab Emirates University, Al Ain, Abu Dhabi, United Arab Emirates
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32
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Sowa S, Pietrusiewicz KM. Chemoselective Reduction of the P=O Bond in the Presence of P-O and P-N Bonds in Phosphonate and Phosphinate Derivatives. European J Org Chem 2019. [DOI: 10.1002/ejoc.201801518] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Sylwia Sowa
- Department of Organic Chemistry; University of Maria Curie-Sklodowska; Gliniana 33 St. 20-614 Lublin Poland
| | - K. Michał Pietrusiewicz
- Department of Organic Chemistry; University of Maria Curie-Sklodowska; Gliniana 33 St. 20-614 Lublin Poland
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33
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34
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Morrison RJ, Hoveyda AH. γ-, Diastereo-, and Enantioselective Addition of MEMO-Substituted Allylboron Compounds to Aldimines Catalyzed by Organoboron-Ammonium Complexes. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201805811] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Ryan J. Morrison
- Department of Chemistry; Merkert Chemistry Center; Boston College; Chestnut Hill MA 02467 USA
| | - Amir H. Hoveyda
- Department of Chemistry; Merkert Chemistry Center; Boston College; Chestnut Hill MA 02467 USA
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35
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Morrison RJ, Hoveyda AH. γ-, Diastereo-, and Enantioselective Addition of MEMO-Substituted Allylboron Compounds to Aldimines Catalyzed by Organoboron-Ammonium Complexes. Angew Chem Int Ed Engl 2018; 57:11654-11661. [PMID: 29969173 DOI: 10.1002/anie.201805811] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2018] [Revised: 07/02/2018] [Indexed: 01/21/2023]
Abstract
The first catalytic, broadly applicable, efficient, γ-, diastereo-, and enantioselective method for addition of O-substituted allyl-B(pin) compounds to phosphinoylimines (MEM=methoxyethoxymethyl, pin=pinacolato) is presented. The identity of the most effective catalyst and the optimal protecting group for the organoboron reagent were determined by consideration of the steric and electronic requirements at different stages of the catalytic cycle, namely, the generation of the chiral allylboronate, the subsequent 1,3-borotropic shift, and the addition step. Aryl-, heteroaryl-, alkenyl- and alkyl-substituted vicinal phosphinoylamido MEM-ethers were thus accessed in 57-92 % yield, 89:11 to >98:2 γ:α selectivity, 76:24-97:3 diastereomeric ratio, and 90:10-99:1 enantiomeric ratio. The method is scalable, and the phosphinoyl and MEM groups may be removed selectively or simultaneously. Utility is highlighted by enantioselective synthesis of an NK-1 receptor antagonist.
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Affiliation(s)
- Ryan J Morrison
- Department of Chemistry, Merkert Chemistry Center, Boston College, Chestnut Hill, MA, 02467, USA
| | - Amir H Hoveyda
- Department of Chemistry, Merkert Chemistry Center, Boston College, Chestnut Hill, MA, 02467, USA
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36
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He Y, Tang J, Luo M, Zeng X. Regioselective and Chemoselective Reduction of Naphthols Using Hydrosilane in Methanol: Synthesis of the 5,6,7,8-Tetrahydronaphthol Core. Org Lett 2018; 20:4159-4163. [PMID: 29979598 DOI: 10.1021/acs.orglett.8b01273] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
A regioselective and chemoselective method for catalytic synthesis of biologically interesting 5,6,7,8-tetrahydronaphthols by reduction of naphthols was described. The side aromatic hydrocarbons in naphthols were site-selectively reduced, using hydrosilanes in methanol, allowing for retaining functional phenol scaffolds intact. It presents a rare example of using low-cost and air-stable hydrosilane for catalytic reduction of unactivated aromatic hydrocarbons under mild conditions. This reaction is scalable and proceeds in high selectivity without the formation of 1,2,3,4-tetrahydronaphthol byproducts with toleration of sensitive functionalities such as bromide, chloride, fluoride, ketone, ester, and amide.
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Affiliation(s)
- Yuan He
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry , Sichuan University , Chengdu 610064 , China
| | - Jinghua Tang
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry , Sichuan University , Chengdu 610064 , China
| | - Meiming Luo
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry , Sichuan University , Chengdu 610064 , China
| | - Xiaoming Zeng
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry , Sichuan University , Chengdu 610064 , China
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37
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Xu Z, Wang P, Chen Q, Cai M. A practical synthesis of unsymmetrical triarylphosphines by heterogeneous palladium(0)-catalyzed cross-coupling of aryl iodides with diphenylphosphine. J Organomet Chem 2018. [DOI: 10.1016/j.jorganchem.2018.04.018] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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38
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Fang Z, Cai M, Lin Y, Zhao H. An efficient heterogeneous cross-coupling of aryl iodides with diphenylphosphine catalyzed by copper (I) immobilized in MCM-41. Appl Organomet Chem 2018. [DOI: 10.1002/aoc.4417] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Zhiqiang Fang
- School of Chemistry and Chemical Engineering, Guangdong Cosmetics Engineering and Technology Research Center; Guangdong Pharmaceutical University; Guangzhou 510006 People's Republic of China
| | - Mingzhong Cai
- College of Chemistry and Chemical Engineering; Jiangxi Normal University; Nanchang 330022 People's Republic of China
| | - Yang Lin
- School of Chemistry and Chemical Engineering, Guangdong Cosmetics Engineering and Technology Research Center; Guangdong Pharmaceutical University; Guangzhou 510006 People's Republic of China
| | - Hong Zhao
- School of Chemistry and Chemical Engineering, Guangdong Cosmetics Engineering and Technology Research Center; Guangdong Pharmaceutical University; Guangzhou 510006 People's Republic of China
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39
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Rinehart NI, Kendall AJ, Tyler DR. A Universally Applicable Methodology for the Gram-Scale Synthesis of Primary, Secondary, and Tertiary Phosphines. Organometallics 2018. [DOI: 10.1021/acs.organomet.7b00684] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- N. Ian Rinehart
- Department of Chemistry and Biochemistry, University of Oregon, 1253 University of Oregon, Eugene, Oregon 97403, United States
| | - Alexander J. Kendall
- Department of Chemistry and Biochemistry, University of Oregon, 1253 University of Oregon, Eugene, Oregon 97403, United States
| | - David R. Tyler
- Department of Chemistry and Biochemistry, University of Oregon, 1253 University of Oregon, Eugene, Oregon 97403, United States
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40
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Ye J, Ni K, Liu J, Chen G, Ikram M, Zhu Y. Oxygen-Rich Carbon Quantum Dots as Catalysts for Selective Oxidation of Amines and Alcohols. ChemCatChem 2017. [DOI: 10.1002/cctc.201701148] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Affiliation(s)
- Jianglin Ye
- Key Laboratory of Materials for Energy Conversion; Chinese Academy of Sciences & Department of Materials Science and Engineering, University of Science and Technology of China; Hefei Anhui 230026 P.R. China
| | - Kun Ni
- Key Laboratory of Materials for Energy Conversion; Chinese Academy of Sciences & Department of Materials Science and Engineering, University of Science and Technology of China; Hefei Anhui 230026 P.R. China
| | - Jie Liu
- Key Laboratory of Materials for Energy Conversion; Chinese Academy of Sciences & Department of Materials Science and Engineering, University of Science and Technology of China; Hefei Anhui 230026 P.R. China
| | - Guanxiong Chen
- Key Laboratory of Materials for Energy Conversion; Chinese Academy of Sciences & Department of Materials Science and Engineering, University of Science and Technology of China; Hefei Anhui 230026 P.R. China
| | - Mujtaba Ikram
- Key Laboratory of Materials for Energy Conversion; Chinese Academy of Sciences & Department of Materials Science and Engineering, University of Science and Technology of China; Hefei Anhui 230026 P.R. China
| | - Yanwu Zhu
- Key Laboratory of Materials for Energy Conversion; Chinese Academy of Sciences & Department of Materials Science and Engineering, University of Science and Technology of China; Hefei Anhui 230026 P.R. China
- iChEM (Collaborative Innovation Center of Chemistry for Energy Materials); University of Science and Technology of China; Hefei Anhui 230026 P.R. China
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41
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Chardon A, Maubert O, Rouden J, Blanchet J. Metal-Free Reduction of Phosphine Oxides, Sulfoxides, andN-Oxides with Hydrosilanes using a Borinic Acid Precatalyst. ChemCatChem 2017. [DOI: 10.1002/cctc.201700986] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Aurélien Chardon
- Laboratoire de Chimie Moléculaire et Thio-organique, ENSICAEN; Université de Caen Basse-Normandie, CNRS; 6 boulevard du Maréchal Juin 14050 Caen France
| | - Orianne Maubert
- Laboratoire de Chimie Moléculaire et Thio-organique, ENSICAEN; Université de Caen Basse-Normandie, CNRS; 6 boulevard du Maréchal Juin 14050 Caen France
| | - Jacques Rouden
- Laboratoire de Chimie Moléculaire et Thio-organique, ENSICAEN; Université de Caen Basse-Normandie, CNRS; 6 boulevard du Maréchal Juin 14050 Caen France
| | - Jérôme Blanchet
- Laboratoire de Chimie Moléculaire et Thio-organique, ENSICAEN; Université de Caen Basse-Normandie, CNRS; 6 boulevard du Maréchal Juin 14050 Caen France
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42
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Buonomo JA, Eiden CG, Aldrich CC. Chemoselective Reduction of Phosphine Oxides by 1,3-Diphenyl-Disiloxane. Chemistry 2017; 23:14434-14438. [PMID: 28840623 PMCID: PMC5647249 DOI: 10.1002/chem.201703875] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2017] [Indexed: 11/09/2022]
Abstract
Reduction of phosphine oxides to the corresponding phosphines represents the most straightforward method to prepare these valuable reagents. However, existing methods to reduce phosphine oxides suffer from inadequate chemoselectivity due to the strength of the P=O bond and/or poor atom economy. Herein, we report the discovery of the most powerful chemoselective reductant for this transformation to date, 1,3-diphenyl-disiloxane (DPDS). Additive-free DPDS selectively reduces both secondary and tertiary phosphine oxides with retention of configuration even in the presence of aldehyde, nitro, ester, α,β-unsaturated carbonyls, azocarboxylates, and cyano functional groups. Arrhenius analysis indicates that the activation barrier for reduction by DPDS is significantly lower than any previously calculated silane reduction system. Inclusion of a catalytic Brønsted acid further reduced the activation barrier and led to the first silane-mediated reduction of acyclic phosphine oxides at room temperature.
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Affiliation(s)
- Joseph A Buonomo
- Department of Medicinal Chemistry, University of Minnesota, 308 Harvard St. SE, Minneapolis, MN, 55455, USA
| | - Carter G Eiden
- Department of Medicinal Chemistry, University of Minnesota, 308 Harvard St. SE, Minneapolis, MN, 55455, USA
| | - Courtney C Aldrich
- Department of Medicinal Chemistry, University of Minnesota, 308 Harvard St. SE, Minneapolis, MN, 55455, USA
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43
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Kovács T, Urbanics A, Csatlós F, Keglevich G. A study on the deoxygenation of trialkyl-, dialkyl-phenyl- and alkyl-diphenyl phosphine oxides by hydrosilanes. HETEROATOM CHEMISTRY 2017. [DOI: 10.1002/hc.21376] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Tamara Kovács
- Department of Organic Chemistry and Technology; Budapest University of Technology and Economics; Budapest Hungary
| | - Anita Urbanics
- Department of Organic Chemistry and Technology; Budapest University of Technology and Economics; Budapest Hungary
| | - Flóra Csatlós
- Department of Organic Chemistry and Technology; Budapest University of Technology and Economics; Budapest Hungary
| | - György Keglevich
- Department of Organic Chemistry and Technology; Budapest University of Technology and Economics; Budapest Hungary
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44
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Huang P, Su Q, Dong W, Zhang Y, An D. BrØnsted/Lewis acids-promoted selective preparations of 3-hetero quinolines or 4/5-hetero triazoles from azides and hetero-alkynes. Tetrahedron 2017. [DOI: 10.1016/j.tet.2017.05.076] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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45
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Kendall AJ, Seidenkranz DT, Tyler DR. Improved Synthetic Route to Heteroleptic Alkylphosphine Oxides. Organometallics 2017. [DOI: 10.1021/acs.organomet.7b00304] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Alexander J. Kendall
- University of Oregon, Department of Chemistry and Biochemistry, 1253 University of Oregon, Eugene, Oregon 97403, United States
| | - Daniel T. Seidenkranz
- University of Oregon, Department of Chemistry and Biochemistry, 1253 University of Oregon, Eugene, Oregon 97403, United States
| | - David R. Tyler
- University of Oregon, Department of Chemistry and Biochemistry, 1253 University of Oregon, Eugene, Oregon 97403, United States
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46
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Krachko T, Lyaskovskyy V, Lutz M, Lammertsma K, Slootweg JC. Brønsted Acid Promoted Reduction of Tertiary Phosphine Oxides. Z Anorg Allg Chem 2017. [DOI: 10.1002/zaac.201700125] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Tetiana Krachko
- Van't Hoff Institute for Molecular Sciences; University of Amsterdam; Science Park 904, PO Box 94157 1090 GD Amsterdam The Netherlands
| | - Volodymyr Lyaskovskyy
- Department of Chemistry and Pharmaceutical Sciences; Vrije Universiteit Amsterdam; De Boelelaan 1083 1081 HV Amsterdam The Netherlands
| | - Martin Lutz
- Crystal and Structural Chemistry; Bijvoet Center for Biomolecular Research; Utrecht University; Padualaan 8 3584 CH Utrecht The Netherlands
| | - Koop Lammertsma
- Department of Chemistry and Pharmaceutical Sciences; Vrije Universiteit Amsterdam; De Boelelaan 1083 1081 HV Amsterdam The Netherlands
- Department of Chemistry; University of Johannesburg; Auckland Park 2006 Johannesburg South Africa
| | - J. Chris Slootweg
- Van't Hoff Institute for Molecular Sciences; University of Amsterdam; Science Park 904, PO Box 94157 1090 GD Amsterdam The Netherlands
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47
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Wang L, Sun M, Ding MW. Catalytic Intramolecular Wittig Reaction Based on a Phosphine/Phosphine Oxide Catalytic Cycle for the Synthesis of Heterocycles. European J Org Chem 2017. [DOI: 10.1002/ejoc.201601628] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- Long Wang
- Key Laboratory of Pesticide & Chemical Biology of Ministry of Education; Central China Normal University; 430079 Wuhan Hubei China
- College of Materials and Chemical Engineering; China Three Gorges University; 443002 Yichang Hubei China
| | - Mei Sun
- Key Laboratory of Pesticide & Chemical Biology of Ministry of Education; Central China Normal University; 430079 Wuhan Hubei China
| | - Ming-Wu Ding
- Key Laboratory of Pesticide & Chemical Biology of Ministry of Education; Central China Normal University; 430079 Wuhan Hubei China
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48
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Reactivity of cyrhetrenylphosphines: Synthesis and characterization of oxides, boranes and selenides. INORG CHEM COMMUN 2017. [DOI: 10.1016/j.inoche.2017.01.017] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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49
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John A, Hillmyer MA, Tolman WB. Anhydride-Additive-Free Nickel-Catalyzed Deoxygenation of Carboxylic Acids to Olefins. Organometallics 2017. [DOI: 10.1021/acs.organomet.6b00940] [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)
- Alex John
- Department of Chemistry & Center for Sustainable Polymers, University of Minnesota, 207 Pleasant Street SE, Minneapolis, Minnesota 55455-0431, United States
| | - Marc A. Hillmyer
- Department of Chemistry & Center for Sustainable Polymers, University of Minnesota, 207 Pleasant Street SE, Minneapolis, Minnesota 55455-0431, United States
| | - William B. Tolman
- Department of Chemistry & Center for Sustainable Polymers, University of Minnesota, 207 Pleasant Street SE, Minneapolis, Minnesota 55455-0431, United States
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50
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Rousée K, Pannecoucke X, Gaumont AC, Lohier JF, Morlet-Savary F, Lalevée J, Bouillon JP, Couve-Bonnaire S, Lakhdar S. Transition metal-free stereospecific access to (E)-(1-fluoro-2-arylvinyl)phosphine borane complexes. Chem Commun (Camb) 2017; 53:2048-2051. [DOI: 10.1039/c6cc09673e] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
Synthesis of (E)-(1-fluoro-2-arylvinyl)phosphine boranes has been achieved under metal-free conditions.
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Affiliation(s)
| | | | | | | | - Fabrice Morlet-Savary
- Institut de Science des Matériaux de Mulhouse IS2M – UMR CNRS 7361 – UHA
- 68057 Mulhouse Cedex
- France
| | - Jacques Lalevée
- Institut de Science des Matériaux de Mulhouse IS2M – UMR CNRS 7361 – UHA
- 68057 Mulhouse Cedex
- France
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