1
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Rossi-Ashton JA, Clarke AK, Unsworth WP, Taylor RJK. Phosphoranyl Radical Fragmentation Reactions Driven by Photoredox Catalysis. ACS Catal 2020; 10:7250-7261. [PMID: 32905246 PMCID: PMC7469205 DOI: 10.1021/acscatal.0c01923] [Citation(s) in RCA: 73] [Impact Index Per Article: 18.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2020] [Revised: 06/04/2020] [Indexed: 12/17/2022]
Abstract
Photocatalytic generation of phosphoranyl radicals is fast emerging as an essential method for the generation of diverse and valuable radicals, typically via deoxygenation or desulfurization processes. This Perspective is a comprehensive evaluation of all studies using phosphoranyl radicals as tunable mediators in photoredox catalysis, highlighting how two distinct methods for phosphoranyl radical formation (radical addition and nucleophilic addition) can be used to generate versatile radical intermediates with diverse reactivity profiles.
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Affiliation(s)
| | - Aimee K. Clarke
- Department of Chemistry, University of York, Heslington,
York YO10 5DD, U.K.
| | - William P. Unsworth
- Department of Chemistry, University of York, Heslington,
York YO10 5DD, U.K.
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2
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Finkbeiner P, Hehn JP, Gnamm C. Phosphine Oxides from a Medicinal Chemist's Perspective: Physicochemical and in Vitro Parameters Relevant for Drug Discovery. J Med Chem 2020; 63:7081-7107. [PMID: 32479078 DOI: 10.1021/acs.jmedchem.0c00407] [Citation(s) in RCA: 40] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Phosphine oxides and related phosphorus-containing functional groups such as phosphonates and phosphinates are established structural motifs that are still underrepresented in today's drug discovery projects, and only few examples can be found among approved drugs. In this account, the physicochemical and in vitro properties of phosphine oxides and related phosphorus-containing functional groups are reported and compared to more commonly used structural motifs in drug discovery. Furthermore, the impact on the physicochemical properties of a real drug scaffold is exemplified by a series of phosphorus-containing analogs of imatinib. We demonstrate that phosphine oxides are highly polar functional groups leading to high solubility and metabolic stability but occasionally at the cost of reduced permeability. We conclude that phosphine oxides and related phosphorus-containing functional groups are valuable polar structural elements and that they deserve to be considered as a routine part of every medicinal chemist's toolbox.
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Affiliation(s)
- Peter Finkbeiner
- Boehringer Ingelheim Pharma GmbH & Co. KG, Birkendorfer Straße 65, 88397 Biberach an der Riß, Germany
| | - Jörg P Hehn
- Boehringer Ingelheim Pharma GmbH & Co. KG, Birkendorfer Straße 65, 88397 Biberach an der Riß, Germany
| | - Christian Gnamm
- Boehringer Ingelheim Pharma GmbH & Co. KG, Birkendorfer Straße 65, 88397 Biberach an der Riß, Germany
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3
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Belh S, Walalawela N, Lekhtman S, Greer A. Dark-Binding Process Relevant to Preventing Photosensitized Oxidation: Conformation-Dependent Light and Dark Mechanisms by a Dual-Functioning Diketone. ACS OMEGA 2019; 4:22623-22631. [PMID: 31909346 PMCID: PMC6941363 DOI: 10.1021/acsomega.9b03488] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/18/2019] [Accepted: 12/04/2019] [Indexed: 06/10/2023]
Abstract
Few photosensitizers function in both light and dark processes as they usually have no function when the lights are turned off. We hypothesized that light and dark mechanisms in an α-diketone will be decoupled by dihedral rotation in a conformation-dependent binding process. Successful decoupling of these two functions is now shown. Namely, anti- and syn-skewed conformations of 4,4'-dimethylbenzil promote photosensitized alkoxy radical production, whereas the syn conformation promotes a binding shutoff reaction with trimethyl phosphite. Less rotation of the diketone is better suited to the photosensitizing function since phosphite binding arises through the syn conformer of lower stability. The dual function seen here with the α-diketone is generally not available to sensitizers of limited conformational flexibility, such as porphyrins, phthalocyanines, and fullerenes.
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Affiliation(s)
- Sarah
J. Belh
- Department
of Chemistry, Brooklyn College, 2900 Bedford Avenue, Brooklyn, New York 11210, United States
- Ph.D.
Program in Chemistry, The Graduate Center
of the City University of New York, 365 Fifth Avenue, New York, New York 10016, United
States
| | - Niluksha Walalawela
- Department
of Chemistry, Brooklyn College, 2900 Bedford Avenue, Brooklyn, New York 11210, United States
- Ph.D.
Program in Chemistry, The Graduate Center
of the City University of New York, 365 Fifth Avenue, New York, New York 10016, United
States
| | - Stas Lekhtman
- Department
of Chemistry, Brooklyn College, 2900 Bedford Avenue, Brooklyn, New York 11210, United States
| | - Alexander Greer
- Department
of Chemistry, Brooklyn College, 2900 Bedford Avenue, Brooklyn, New York 11210, United States
- Ph.D.
Program in Chemistry, The Graduate Center
of the City University of New York, 365 Fifth Avenue, New York, New York 10016, United
States
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4
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Koranteng E, Liu YY, Liu SY, Wu QX, Lu LQ, Xiao WJ. Practical C–P bond formation via heterogeneous photoredox and nickel synergetic catalysis. CHINESE JOURNAL OF CATALYSIS 2019. [DOI: 10.1016/s1872-2067(19)63379-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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5
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Mamidala R, Pandey VK, Rit A. AgSbF 6-Catalyzed anti-Markovnikov hydroboration of terminal alkynes. Chem Commun (Camb) 2019; 55:989-992. [PMID: 30608078 DOI: 10.1039/c8cc07499b] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
AgSbF6-Catalyzed anti-Markovnikov addition of pinacolborane (HBpin) to terminal alkynes to produce the E-vinylboronates is reported. This efficient methodology is scalable, compatible with sterically and electronically diverse alkynes, and works at room temperature under solvent-free condition. The utility of this method is demonstrated in the facile synthesis of the clinically important (E)-2,4,3',5'-tetramethoxystilbene.
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Affiliation(s)
- Ramesh Mamidala
- Department of Chemistry, Indian Institute of Technology Madras, Chennai 600036, India.
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6
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Li CK, Tao ZK, Zhou ZH, Bao XG, Zhou SF, Zou JP. Copper-Catalyzed Oxidative sp3-Carbon Radical Cross-Coupling with Trialkylphosphites Leading to α-Phosphonyl 1,3-Dicarbonyl Compounds. J Org Chem 2019; 84:2351-2357. [DOI: 10.1021/acs.joc.8b03093] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Affiliation(s)
- Cheng-Kun Li
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry and Chemical Engineering, Soochow University, 199 Renai Street, Suzhou, Jiangsu 215123, China
| | - Ze-Kun Tao
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry and Chemical Engineering, Soochow University, 199 Renai Street, Suzhou, Jiangsu 215123, China
| | - Zhi-Hao Zhou
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry and Chemical Engineering, Soochow University, 199 Renai Street, Suzhou, Jiangsu 215123, China
| | - Xiao-Guang Bao
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry and Chemical Engineering, Soochow University, 199 Renai Street, Suzhou, Jiangsu 215123, China
| | - Shao-Fang Zhou
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry and Chemical Engineering, Soochow University, 199 Renai Street, Suzhou, Jiangsu 215123, China
| | - Jian-Ping Zou
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry and Chemical Engineering, Soochow University, 199 Renai Street, Suzhou, Jiangsu 215123, China
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7
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Zhu X, Ye C, Li Y, Bao H. Iron‐Catalyzed Radical Decarboxylative Oxyalkylation of Terminal Alkynes with Alkyl Peroxides. Chemistry 2017. [PMID: 28627009 DOI: 10.1002/chem.201701830] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Xiaotao Zhu
- Key Laboratory of Coal to Ethylene Glycol and Its Related Technology, State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of MatterUniversity of Chinese Academy of Sciences 155 Yangqiao Road West, Fuzhou Fujian 350002 P. R. China
| | - Changqing Ye
- Key Laboratory of Coal to Ethylene Glycol and Its Related Technology, State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of MatterUniversity of Chinese Academy of Sciences 155 Yangqiao Road West, Fuzhou Fujian 350002 P. R. China
| | - Yajun Li
- Key Laboratory of Coal to Ethylene Glycol and Its Related Technology, State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of MatterUniversity of Chinese Academy of Sciences 155 Yangqiao Road West, Fuzhou Fujian 350002 P. R. China
| | - Hongli Bao
- Key Laboratory of Coal to Ethylene Glycol and Its Related Technology, State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of MatterUniversity of Chinese Academy of Sciences 155 Yangqiao Road West, Fuzhou Fujian 350002 P. R. China
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8
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Fortunato L, Moglie Y, Dorn V, Radivoy G. Hydrophosphorylation of aliphatic alkynes catalyzed by CuNPs/ZnO for the synthesis of vinyl phosphonates. A DFT study on the reaction mechanism. RSC Adv 2017. [DOI: 10.1039/c7ra01037k] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
Abstract
A DFT study on the reaction mechanism for the synthesis of vinyl phosphonates catalyzed by CuNPs/ZnO. Essential role of the solvent and the catalyst support.
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Affiliation(s)
- Leandro Fortunato
- INQUISUR
- Departamento de Química
- Universidad Nacional del Sur (UNS)-CONICET
- 8000 Bahía Blanca
- Argentina
| | - Yanina Moglie
- INQUISUR
- Departamento de Química
- Universidad Nacional del Sur (UNS)-CONICET
- 8000 Bahía Blanca
- Argentina
| | - Viviana Dorn
- INQUISUR
- Departamento de Química
- Universidad Nacional del Sur (UNS)-CONICET
- 8000 Bahía Blanca
- Argentina
| | - Gabriel Radivoy
- INQUISUR
- Departamento de Química
- Universidad Nacional del Sur (UNS)-CONICET
- 8000 Bahía Blanca
- Argentina
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9
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10
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Baig MZK, Pallikonda G, Trivedi P, Tulichala RNP, Ghosh B, Chakravarty M. Metal-Free Arylation to Access Distinct Anthracenylphosphonates and Anticancer Activities for These and Allied Phosphonates. ChemistrySelect 2016. [DOI: 10.1002/slct.201600978] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- M. Zubair K. Baig
- Department of Chemistry; BITS-Pilani, Hyderabad Campus, Shamirpet; Hyderabad India 500078
| | - Gangaram Pallikonda
- Department of Chemistry; BITS-Pilani, Hyderabad Campus, Shamirpet; Hyderabad India 500078
| | - Prakruti Trivedi
- Department of Pharmacy; BITS-Pilani, Hyderabad Campus, Shamirpet; Hyderabad India 500078
| | | | - Balaram Ghosh
- Department of Pharmacy; BITS-Pilani, Hyderabad Campus, Shamirpet; Hyderabad India 500078
| | - Manab Chakravarty
- Department of Chemistry; BITS-Pilani, Hyderabad Campus, Shamirpet; Hyderabad India 500078
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11
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One-pot Synthesis of Terminal Vinylphosphonates Catalyzed by Pyridine Grafted GO as Reusable Acid-Base Bifunctional Catalyst. ChemistrySelect 2016. [DOI: 10.1002/slct.201600517] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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12
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13
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New ω-ketovinyl phosphonates: inexpensive synthesis, isomerization studies and route for functionalized 1,3-butadienes. Tetrahedron 2015. [DOI: 10.1016/j.tet.2015.06.064] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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14
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Gutierrez V, Mascaró E, Alonso F, Moglie Y, Radivoy G. Direct synthesis of β-ketophosphonates and vinyl phosphonates from alkenes or alkynes catalyzed by CuNPs/ZnO. RSC Adv 2015. [DOI: 10.1039/c5ra10223e] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Ligand- and base-free direct synthesis of β-keto- and vinyl phosphonates catalysed by CuNPs/ZnO under air. Selectivity dependent on alkyne nature.
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Affiliation(s)
- Victoria Gutierrez
- Instituto de Química del Sur
- INQUISUR (CONICET-UNS)
- Departamento de Química
- Universidad Nacional del Sur
- 8000 Bahía Blanca
| | - Evangelina Mascaró
- Instituto de Química del Sur
- INQUISUR (CONICET-UNS)
- Departamento de Química
- Universidad Nacional del Sur
- 8000 Bahía Blanca
| | - Francisco Alonso
- Instituto de Síntesis Orgánica (ISO) and Departamento de Química Orgánica
- Facultad de Ciencias
- Universidad de Alicante
- Alicante
- Spain
| | - Yanina Moglie
- Instituto de Química del Sur
- INQUISUR (CONICET-UNS)
- Departamento de Química
- Universidad Nacional del Sur
- 8000 Bahía Blanca
| | - Gabriel Radivoy
- Instituto de Química del Sur
- INQUISUR (CONICET-UNS)
- Departamento de Química
- Universidad Nacional del Sur
- 8000 Bahía Blanca
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15
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Dutta U, Maity S, Kancherla R, Maiti D. Aerobic Oxynitration of Alkynes with tBuONO and TEMPO. Org Lett 2014; 16:6302-5. [DOI: 10.1021/ol503025n] [Citation(s) in RCA: 91] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Uttam Dutta
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India
| | - Soham Maity
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India
| | - Rajesh Kancherla
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India
| | - Debabrata Maiti
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India
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16
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Maji A, Hazra A, Maiti D. Direct Synthesis of α-Trifluoromethyl Ketone from (Hetero)arylacetylene: Design, Intermediate Trapping, and Mechanistic Investigations. Org Lett 2014; 16:4524-7. [DOI: 10.1021/ol502071g] [Citation(s) in RCA: 105] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Arun Maji
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India
| | - Avijit Hazra
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India
| | - Debabrata Maiti
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India
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17
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Duda B, Tverdomed SN, Ionin BI, Röschenthaler GV. Fluorinated Alkynylphosphonates inC,C-Cyclizations: Regioselective Formation of Polysubstituted Fluorinated Arylphosphonates. European J Org Chem 2014. [DOI: 10.1002/ejoc.201402188] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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18
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Ballester J, Gatignol J, Schmidt G, Alayrac C, Gaumont AC, Taillefer M. A Copper-Catalyzed Variant of the Michaelis-Arbuzov Reaction. ChemCatChem 2014. [DOI: 10.1002/cctc.201301029] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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19
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Chen SY, Zeng RS, Zou JP, Asekun OT. Copper-Catalyzed Coupling Reaction of Arylhydrazines and Trialkylphosphites. J Org Chem 2014; 79:1449-53. [DOI: 10.1021/jo4022474] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Sheng-Yan Chen
- Key
Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry,
Chemical Engineering and Material Science, Soochow University, Suzhou 215123, People’s Republic of China
| | - Run-Sheng Zeng
- Key
Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry,
Chemical Engineering and Material Science, Soochow University, Suzhou 215123, People’s Republic of China
| | - Jian-Ping Zou
- Key
Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry,
Chemical Engineering and Material Science, Soochow University, Suzhou 215123, People’s Republic of China
- Key
Laboratory of Synthetic Chemistry of Natural Substances, Shanghai
Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai 200032, People’s Republic of China
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20
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Pan X, Chen M, Yao L, Wu J. Access to 6H-naphtho[2,3-c]chromenes by a palladium-catalyzed reaction of 2-haloaryl allene with 2-alkynylphenol. Chem Commun (Camb) 2014; 50:5891-4. [DOI: 10.1039/c4cc00374h] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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21
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Wang JW, Jia J, Xie YF, Feng L, Xu HQ, Meng S, Zhao GL, Xu WR, Ge YQ. Synthesis of Nitrogen Bridgehead Heterocycles with Phosphonates via a Novel Tandem Process. HETEROCYCLES 2013. [DOI: 10.3987/com-12-12661] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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22
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Pallikonda G, Chakravarty M. FeCl3-Mediated Arylation of α-Hydroxyphosphonates with Unactivated Arenes: Pseudo-Umpolung in Allylic Phosphonates. European J Org Chem 2012. [DOI: 10.1002/ejoc.201201352] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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23
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Bhorge YR, Chang SH, Chang CT, Yan TH. A new entry of highly nucleophilic CHBr3–TiCl4–Mg system for the stereoselective synthesis of 1-alkenyl bromides. Tetrahedron 2012. [DOI: 10.1016/j.tet.2012.03.123] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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24
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Yang G, Shen C, Zhang L, Zhang W. Nickel-catalyzed Arbuzov reactions of aryl triflates with triethyl phosphite. Tetrahedron Lett 2011. [DOI: 10.1016/j.tetlet.2011.07.077] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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25
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Tverdomed SN, Kolanowski J, Lork E, Röschenthaler GV. An effective synthetic route to ortho-difluoromethyl arylphosphosphonates: studies on the reactivity of phosphorus- and fluorine-containing functions. Tetrahedron 2011. [DOI: 10.1016/j.tet.2011.03.076] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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26
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27
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Berrino R, Cacchi S, Fabrizi G, Goggiamani A, Stabile P. Arenediazonium tetrafluoroborates in palladium-catalyzed C–P bond-forming reactions. Synthesis of arylphosphonates, -phosphine oxides, and -phosphines. Org Biomol Chem 2010; 8:4518-20. [DOI: 10.1039/c0ob00243g] [Citation(s) in RCA: 75] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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28
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Luo Y, Wu J. Synthesis of Arylphosphonates via Palladium-Catalyzed Coupling Reactions of Aryl Imidazolylsulfonates with H-Phosphonate Diesters. Organometallics 2009. [DOI: 10.1021/om900771v] [Citation(s) in RCA: 56] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Yong Luo
- Department of Chemistry, Fudan University, 220 Handan Road, Shanghai 200433, China
| | - Jie Wu
- Department of Chemistry, Fudan University, 220 Handan Road, Shanghai 200433, China
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 354 Fenglin Road, Shanghai 200032, China
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29
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Synthesis of (S)-(+)-tylophorine and its seco analogues using free radical reaction. ACTA ACUST UNITED AC 2009. [DOI: 10.1007/s11426-009-0183-z] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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30
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Rostamnia S, Alizadeh A, Zhu LG. Novel three-component route to diastereoselective synthesis of trisubstituted vinylphosphonates using phosphites, acetylenic esters, and aroyl chlorides. ACTA ACUST UNITED AC 2009; 11:143-5. [PMID: 19099427 DOI: 10.1021/cc800128j] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Trisubstituted vinylphosphonates have been prepared via three-component reaction using phosphites, acetylenic esters, and aroyl chlorides in good yields. A variety of phosphites, activated acetylenes, and aroyl chlorides have been successfully employed in these reactions. In addition, three-component synthesis of vinylphosphonate provides exclusive E-olefin stereochemistry.
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Affiliation(s)
- Sadegh Rostamnia
- Department of Chemistry, Tarbiat Modares University, Tehran, Iran
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31
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Kalek M, Ziadi A, Stawinski J. Microwave-assisted palladium-catalyzed cross-coupling of aryl and vinyl halides with H-phosphonate diesters. Org Lett 2008; 10:4637-40. [PMID: 18808138 DOI: 10.1021/ol801935r] [Citation(s) in RCA: 137] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A general and efficient method for the microwave-assisted formation of the C-P bond was developed. Using a prevalent palladium catalyst, Pd(PPh3)4, a quantitative cross-coupling of various H-phosphonate diesters with aryl and vinyl halides was achieved in less than 10 min. The reactions occurred with retention of configuration at the phosphorus center and in the vinyl moiety. Using this protocol, several C-phosphonates, including those bearing nucleoside and cholesteryl moieties, were prepared in high yields.
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Affiliation(s)
- Marcin Kalek
- Department of Organic Chemistry, Arrhenius Laboratory, Stockholm University, S-106 91 Stockholm, Sweden
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32
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Tverdomed SN, Röschenthaler GV, Kalinovich N, Lork E, Dogadina AV, Ionin BI. New α-substituted alkylbenzene- and dialkylbenzene-1,2-diphosphonates: side-chain metalation of tetraethyl 4-methyl- and 4,5-dimethylbenzene-1,2-diphosphonates. Tetrahedron 2008. [DOI: 10.1016/j.tet.2008.03.020] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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33
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Chatgilialoglu C. (Me3Si)3SiH: Twenty Years After Its Discovery as a Radical-Based Reducing Agent. Chemistry 2008; 14:2310-20. [DOI: 10.1002/chem.200701415] [Citation(s) in RCA: 133] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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34
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Goumans TPM, van Alem K, Lodder G. Photochemical Generation and Structure of Vinyl Radicals. European J Org Chem 2008. [DOI: 10.1002/ejoc.200700882] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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35
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Chatgilialoglu C, Timokhin VI. Silyl Radicals in Chemical Synthesis. ADVANCES IN ORGANOMETALLIC CHEMISTRY 2008. [DOI: 10.1016/s0065-3055(08)00002-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/07/2023]
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Vaillard SE, Mück-Lichtenfeld C, Grimme S, Studer A. Homolytic Substitution at Phosphorus for the Synthesis of Alkyl and Aryl Phosphanes. Angew Chem Int Ed Engl 2007; 46:6533-6. [PMID: 17639520 DOI: 10.1002/anie.200701650] [Citation(s) in RCA: 53] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Santiago E Vaillard
- Organisch-Chemisches Institut, Westfälische Wilhelms-Universität, Corrensstrasse 40, 48149 Münster, Germany
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Vaillard S, Mück-Lichtenfeld C, Grimme S, Studer A. Homolytische Substitution am Phosphor zur Synthese von Alkyl- und Arylphosphanen. Angew Chem Int Ed Engl 2007. [DOI: 10.1002/ange.200701650] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Ageno T, Okauchi T, Minami T, Ishida M. Generation of α-phosphonovinyl radicals and development of a new route to highly functionalized vinylphosphonates and vinylphosphonate-incorporated carbocyclic or heterocyclic compounds via a radical trapping sequence. Org Biomol Chem 2005; 3:924-31. [PMID: 15731880 DOI: 10.1039/b416394j] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The first direct generation of synthetically useful alpha-phosphonovinyl radicals was achieved by treatment of alpha-phosphonovinyl halides with a tributyltin radical. The alpha-phosphonovinyl radicals 2a-d were trapped with electron-rich olefins and an electron-deficient olefin to produce alpha-functionalized vinylphosphonates 3a-f in 16-55% yields. The alpha-phosphonovinyl radicals 7e-g containing the YCH2CH=CH2 (Y = O, CH2, S) substituent at the beta-position afforded mixtures of 5-exo and 6-endo cyclization products, 5e-g and 6e-g, in good yields. The 5-exo/6-endo product ratios increase in the following order of the beta-substituent: OCH2CH=CH2 > CH2CH2CH=CH2 > SCH2CH=CH2. The effects of the beta-substituents upon the cyclization reaction were discussed. Radical cyclization of alpha-phosphonovinyl radicals bearing functional groups such as geranyloxy, geranylthio, and (2-cyclohexen-1-yl)thio groups at the beta-position afforded 5-exo, 5-exo and 6-endo, and cis-fused-5,6-ring cyclization products incorporating an alpha,beta-unsaturated phosphonate unit within the ring, respectively, in good yields. The alpha-phosphonovinyl radical 20 underwent tandem radical cyclization-radical cyclization to produce a mixture of two isomeric bicyclo[4.3.0]nonenes including a vinylphosphonate moiety in high yield.
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Affiliation(s)
- Takafumi Ageno
- Department of Applied Chemistry, Kyushu Institute of Technology, Sensui-cho, Tobata, Kitakyushu, 804-8550, Japan
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