1
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Zhang Y, Tian Q, Zhang G, Zhang D. Silver-catalyzed synthesis of β-fluorovinylphosphonates by phosphonofluorination of aromatic alkynes. Beilstein J Org Chem 2020; 16:3086-3092. [PMID: 33414856 PMCID: PMC7753110 DOI: 10.3762/bjoc.16.258] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2020] [Accepted: 12/07/2020] [Indexed: 01/18/2023] Open
Abstract
A silver-catalyzed three-component reaction involving alkynes, Selectfluor®, and diethyl phosphite was employed for the one-pot formation of C(sp2)-F and C(sp2)-P bonds to provide an efficient access to β-fluorovinylphosphonates in a highly regio- and stereoselective manner under mild reaction conditions. This reaction is operationally simple and offers an excellent functional group tolerance as well as a broad substrate scope that includes both terminal and internal alkynes. The reaction proceeded through the oxidative generation of a P-centered radical and subsequent fluorine atom transfer.
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Affiliation(s)
- Yajing Zhang
- School of Science, China Pharmaceutical University, 24 Tongjiaxiang, Nanjing 210000, P. R. China
| | - Qingshan Tian
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, P. R. China
| | - Guozhu Zhang
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, P. R. China
| | - Dayong Zhang
- School of Science, China Pharmaceutical University, 24 Tongjiaxiang, Nanjing 210000, P. R. China
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2
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Morisaki K, Morimoto H, Ohshima T. Recent Progress on Catalytic Addition Reactions to N-Unsubstituted Imines. ACS Catal 2020. [DOI: 10.1021/acscatal.0c01212] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Kazuhiro Morisaki
- Institute for Chemical Research, Kyoto University, Uji, Kyoto 611-0011, Japan
| | - Hiroyuki Morimoto
- Graduate School of Pharmaceutical Sciences, Kyushu University, Fukuoka 812-8582, Japan
| | - Takashi Ohshima
- Graduate School of Pharmaceutical Sciences, Kyushu University, Fukuoka 812-8582, Japan
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3
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Schmidt EY, Bidusenko IA, Protsuk NI, Demyanov YV, Ushakov IA, Vashchenko AV, Trofimov BA. Transition-Metal-Free Superbase-Catalyzed C–H Vinylation of Aldimines with Acetylenes to 1-Azadienes. J Org Chem 2020; 85:3417-3425. [DOI: 10.1021/acs.joc.9b03192] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Elena Yu. Schmidt
- A.E. Favorsky Irkutsk Institute of Chemistry, Siberian Branch of the Russian Academy of Sciences, 1 Favorsky Street, Irkutsk 664033, Russian Federation
| | - Ivan A. Bidusenko
- A.E. Favorsky Irkutsk Institute of Chemistry, Siberian Branch of the Russian Academy of Sciences, 1 Favorsky Street, Irkutsk 664033, Russian Federation
| | - Nadezhda I. Protsuk
- A.E. Favorsky Irkutsk Institute of Chemistry, Siberian Branch of the Russian Academy of Sciences, 1 Favorsky Street, Irkutsk 664033, Russian Federation
| | - Yan V. Demyanov
- A.E. Favorsky Irkutsk Institute of Chemistry, Siberian Branch of the Russian Academy of Sciences, 1 Favorsky Street, Irkutsk 664033, Russian Federation
| | - Igor A. Ushakov
- A.E. Favorsky Irkutsk Institute of Chemistry, Siberian Branch of the Russian Academy of Sciences, 1 Favorsky Street, Irkutsk 664033, Russian Federation
| | - Alexander V. Vashchenko
- A.E. Favorsky Irkutsk Institute of Chemistry, Siberian Branch of the Russian Academy of Sciences, 1 Favorsky Street, Irkutsk 664033, Russian Federation
| | - Boris A. Trofimov
- A.E. Favorsky Irkutsk Institute of Chemistry, Siberian Branch of the Russian Academy of Sciences, 1 Favorsky Street, Irkutsk 664033, Russian Federation
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4
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Yang S, Zhu S, Lu D, Gong Y. Formylation of Fluoroalkyl Imines through Visible-Light-Enabled H-Atom Transfer Catalysis: Access to Fluorinated α-Amino Aldehydes. Org Lett 2019; 21:2019-2024. [DOI: 10.1021/acs.orglett.9b00128] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Sen Yang
- School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, 1037 Luoyu Rd., Wuhan, Hubei 430074, China
| | - Shuangyu Zhu
- School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, 1037 Luoyu Rd., Wuhan, Hubei 430074, China
| | - Dengfu Lu
- School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, 1037 Luoyu Rd., Wuhan, Hubei 430074, China
| | - Yuefa Gong
- School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, 1037 Luoyu Rd., Wuhan, Hubei 430074, China
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5
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Trost BM, Tracy JS, Yusoontorn T. Vanadium-Catalyzed Coupling of Allenols with Electrophilic Halide Sources for the Formation of α-Halo-α′,β′-unsaturated Ketones. Org Lett 2019; 21:1207-1211. [DOI: 10.1021/acs.orglett.9b00195] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Barry M. Trost
- Department of Chemistry, Stanford University, 333 Campus Drive, Stanford, California 94305, United States
| | - Jacob S. Tracy
- Department of Chemistry, Stanford University, 333 Campus Drive, Stanford, California 94305, United States
| | - Tas Yusoontorn
- Department of Chemistry, Stanford University, 333 Campus Drive, Stanford, California 94305, United States
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6
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Swamy KCK, Anitha M, Debnath S, Shankar M. Reactivity of allenylphosphonates/allenylphosphine oxides – some new addition/cycloaddition and cyclization pathways. PURE APPL CHEM 2019. [DOI: 10.1515/pac-2018-1111] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Abstract
In this paper, we highlight some addition/cycloaddition reactions of allenylphosphonates and allenylphosphine oxides, mostly based on the work done in our laboratory. Thus the electrophilic addition of iodine monochloride (ICl) with allenylphosphine oxides affords cyclic phosphonium salts rather than γ-chloro-β-iodovinylphosphine oxides (NMR, HRMS, X-ray) that exhibit rather unusual downfield shifts in the 31P NMR spectra. These compounds undergo hydrolysis to afford γ-hydroxy-β-iodovinylphosphine oxides; the hydroxymethyl group in these compounds can be oxidized by Dess-Martin periodinane to afford the corresponding aldehyde-substituted vinylphosphine oxides. A [2+2] cycloaddition product of an allenylphosphonate has also been structurally characterized. Other reactions that are highlighted include those leading to (Z)/(E)-β-aminovinylphosphonates, β-ketophosphonates (and their utility in Horner-Wadsworth-Emmons reaction), indolyl/furanyl/isocoumaranyl/naphthyl phosphine oxides, thiophosphorylated phosphonates and azo-substituted coumarin phosphonates.
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Affiliation(s)
- K. C. Kumara Swamy
- School of Chemistry , University of Hyderabad , Hyderabad-500046, Telangana , India
| | - Mandala Anitha
- School of Chemistry , University of Hyderabad , Hyderabad-500046, Telangana , India
| | - Shubham Debnath
- School of Chemistry , University of Hyderabad , Hyderabad-500046, Telangana , India
| | - Mallepalli Shankar
- School of Chemistry , University of Hyderabad , Hyderabad-500046, Telangana , India
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7
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Qiao B, Cao HQ, Huang YJ, Zhang Y, Nie J, Zhang FG, Ma JA. Pd(II)-Catalyzed Phosphorylation of Enamido C(sp2
)-H Bonds: A General Route to β-Amido-vinylphosphonates. CHINESE J CHEM 2018. [DOI: 10.1002/cjoc.201800262] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Baokun Qiao
- Department of Chemistry, Tianjin Key Laboratory of Molecular Optoelectronic Sciences, and Tianjin Collaborative Innovation Center of Chemical Science & Engineering; Tianjin University; Tianjin 300072 China
| | - Hao-Qiang Cao
- Department of Chemistry, Tianjin Key Laboratory of Molecular Optoelectronic Sciences, and Tianjin Collaborative Innovation Center of Chemical Science & Engineering; Tianjin University; Tianjin 300072 China
| | - Yin-Jun Huang
- Department of Chemistry, Tianjin Key Laboratory of Molecular Optoelectronic Sciences, and Tianjin Collaborative Innovation Center of Chemical Science & Engineering; Tianjin University; Tianjin 300072 China
| | - Yue Zhang
- Department of Chemistry, Tianjin Key Laboratory of Molecular Optoelectronic Sciences, and Tianjin Collaborative Innovation Center of Chemical Science & Engineering; Tianjin University; Tianjin 300072 China
| | - Jing Nie
- Department of Chemistry, Tianjin Key Laboratory of Molecular Optoelectronic Sciences, and Tianjin Collaborative Innovation Center of Chemical Science & Engineering; Tianjin University; Tianjin 300072 China
| | - Fa-Guang Zhang
- Department of Chemistry, Tianjin Key Laboratory of Molecular Optoelectronic Sciences, and Tianjin Collaborative Innovation Center of Chemical Science & Engineering; Tianjin University; Tianjin 300072 China
| | - Jun-An Ma
- Department of Chemistry, Tianjin Key Laboratory of Molecular Optoelectronic Sciences, and Tianjin Collaborative Innovation Center of Chemical Science & Engineering; Tianjin University; Tianjin 300072 China
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8
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Pang S, Yang X, Cao ZH, Zhang YL, Zhao Y, Huang YY. Intermolecular [2 + 2] Cycloaddition/Isomerization of Allenyl Imides and Unactivated Imines for the Synthesis of 1-Azadienes Catalyzed by a Ni(ClO4)2·6H2O Lewis Acid. ACS Catal 2018. [DOI: 10.1021/acscatal.8b01454] [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)
- Shuai Pang
- Department of Chemistry, School of Chemistry, Chemical Engineering and Life Science, Wuhan University of Technology, Wuhan 430070, China
| | - Xing Yang
- Department of Chemistry, School of Chemistry, Chemical Engineering and Life Science, Wuhan University of Technology, Wuhan 430070, China
| | - Ze-Hun Cao
- Department of Chemistry, School of Chemistry, Chemical Engineering and Life Science, Wuhan University of Technology, Wuhan 430070, China
| | - Yu-Long Zhang
- Department of Chemistry, School of Chemistry, Chemical Engineering and Life Science, Wuhan University of Technology, Wuhan 430070, China
| | - Yan Zhao
- State Key Laboratory of Silicate Materials for Architectures, International School of Materials Science and Engineering, Wuhan University of Technology, Wuhan 430070, China
| | - Yi-Yong Huang
- Department of Chemistry, School of Chemistry, Chemical Engineering and Life Science, Wuhan University of Technology, Wuhan 430070, China
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9
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Leclerc MC, Gabidullin BM, Da Gama JG, Daifuku SL, Iannuzzi TE, Neidig ML, Baker RT. Transition-Metal-Free Formation of C-E Bonds (E = C, N, O, S) and Formation of C-M Bonds (M = Mn, Mo) from N-Heterocyclic Carbene Mediated Fluoroalkene C-F Bond Activation. Organometallics 2017; 36:849-857. [PMID: 28670045 DOI: 10.1021/acs.organomet.6b00908] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Herein, a recently reported polyfluoroalkenyl imidazolium salt is shown to react with nitrogen-, oxygen- and sulfur-based nucleophiles at the C β position in a stereoselective and regioselective fashion, without the use of a transition metal. In contrast, reactivity with 1-methylimidazole demonstrates net substitution at C α . This product reacts quantitatively with water, affording clean transformation of a difluoromethylene group to give an α,β-unsaturated trifluoromethyl ketone. Further reactivity studies demonstrate that the difluoromethyl fragment of an N-heterocyclic fluoroalkene is capable of direct C-C bond formation with NaCp through loss of sodium fluoride and double C-F bond activation (Cp = cyclopentadienide). TD-DFT calculations of this product indicate that both the HOMO and LUMO are of mixed π/π* character and are delocalized over the N-heterocyclic and Cp fragments, giving rise to a very intense absorption feature in the UV-vis spectrum. Additionally, two carbonylmetalate-substituted fluorovinyl imidazolium complexes featuring Mn and Mo were isolated and fully characterized.
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Affiliation(s)
- Matthew C Leclerc
- Department of Chemistry and Biomolecular Sciences and Centre for Catalysis Research and Innovation, University of Ottawa, 30 Marie Curie, Ottawa, Ontario K1N 6N5, Canada
| | - Bulat M Gabidullin
- Department of Chemistry and Biomolecular Sciences and Centre for Catalysis Research and Innovation, University of Ottawa, 30 Marie Curie, Ottawa, Ontario K1N 6N5, Canada
| | - Jason G Da Gama
- Department of Chemistry and Biomolecular Sciences and Centre for Catalysis Research and Innovation, University of Ottawa, 30 Marie Curie, Ottawa, Ontario K1N 6N5, Canada
| | - Stephanie L Daifuku
- Department of Chemistry, University of Rochester, Rochester, New York 14627, United States
| | - Theresa E Iannuzzi
- Department of Chemistry, University of Rochester, Rochester, New York 14627, United States
| | - Michael L Neidig
- Department of Chemistry, University of Rochester, Rochester, New York 14627, United States
| | - R Tom Baker
- Department of Chemistry and Biomolecular Sciences and Centre for Catalysis Research and Innovation, University of Ottawa, 30 Marie Curie, Ottawa, Ontario K1N 6N5, Canada
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10
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Li SG, Portela-Cubillo F, Zard SZ. A Convergent Synthesis of Enantiopure Open-Chain, Cyclic, and Fluorinated α-Amino Acids. Org Lett 2016; 18:1888-91. [DOI: 10.1021/acs.orglett.6b00656] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Shi-Guang Li
- Laboratoire
de Synthèse
Organique, CNRS UMR 7652 Ecole Polytechnique, 91128 Palaiseau, Cedex, France
| | - Fernando Portela-Cubillo
- Laboratoire
de Synthèse
Organique, CNRS UMR 7652 Ecole Polytechnique, 91128 Palaiseau, Cedex, France
| | - Samir Z. Zard
- Laboratoire
de Synthèse
Organique, CNRS UMR 7652 Ecole Polytechnique, 91128 Palaiseau, Cedex, France
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11
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Kwon Y, Jeon M, Park JY, Rhee YH, Park J. Synthesis of 1H-azadienes and application to one-pot organic transformations. RSC Adv 2016. [DOI: 10.1039/c5ra26230e] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
1H-Azadienes were synthesized from allyl azides by ruthenium catalysis under mild and neutral conditions. Applications of the 1H-azadienes were demonstrated for the one-pot synthesis of nitrogen containing organic compounds.
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Affiliation(s)
- Yearang Kwon
- Department of Chemistry
- POSTECH (Pohang University of Science and Technology)
- Pohang
- Korea
| | - Mina Jeon
- Department of Chemistry
- POSTECH (Pohang University of Science and Technology)
- Pohang
- Korea
| | - Jin Yong Park
- Department of Chemistry
- POSTECH (Pohang University of Science and Technology)
- Pohang
- Korea
| | - Young Ho Rhee
- Department of Chemistry
- POSTECH (Pohang University of Science and Technology)
- Pohang
- Korea
| | - Jaiwook Park
- Department of Chemistry
- POSTECH (Pohang University of Science and Technology)
- Pohang
- Korea
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12
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Rapp M, Szewczyk MZ, Koroniak H. Synthesis and spectral properties of α,α-difluorinated β-iminophosphonates. J Fluor Chem 2014. [DOI: 10.1016/j.jfluchem.2014.07.008] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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13
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14
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Fernández de Trocóniz G, Ochoa de Retana AM, Rubiales G, Palacios F. Fluoroalkylated α,β-Unsaturated Imines as Synthons for the Preparation of Fluorinated Triazinane-2,4-diones and Dihydropyrimidin-2(1H)-ones. J Org Chem 2014; 79:5173-81. [DOI: 10.1021/jo500745u] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Guillermo Fernández de Trocóniz
- Departamento de Química
Orgánica I and Centro de Investigacion Lascaray (Lascaray Research
Center) Facultad de Farmacia, Universidad del País Vasco/Euskal Herriko Unibertsitatea (UPV/EHU), Paseo de la Universidad 7, 01006 Vitoria, Spain
| | - Ana M. Ochoa de Retana
- Departamento de Química
Orgánica I and Centro de Investigacion Lascaray (Lascaray Research
Center) Facultad de Farmacia, Universidad del País Vasco/Euskal Herriko Unibertsitatea (UPV/EHU), Paseo de la Universidad 7, 01006 Vitoria, Spain
| | - Gloria Rubiales
- Departamento de Química
Orgánica I and Centro de Investigacion Lascaray (Lascaray Research
Center) Facultad de Farmacia, Universidad del País Vasco/Euskal Herriko Unibertsitatea (UPV/EHU), Paseo de la Universidad 7, 01006 Vitoria, Spain
| | - Francisco Palacios
- Departamento de Química
Orgánica I and Centro de Investigacion Lascaray (Lascaray Research
Center) Facultad de Farmacia, Universidad del País Vasco/Euskal Herriko Unibertsitatea (UPV/EHU), Paseo de la Universidad 7, 01006 Vitoria, Spain
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15
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Cai Y, Ge H, Yu C, Sun W, Zhan J, Miao Z. Regiospecific and highly stereoselective synthesis of β-amino (Z)-enylphosphonates via β-hydrogen migration reaction of dialkyl α-diazophosphonates catalyzed by AgOTf. RSC Adv 2014. [DOI: 10.1039/c4ra02520b] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Abstract
The diazo decomposition of dialkyl α-diazophosphonates in the presence of AgOTf provides an efficient one-step route to a variety of β-amino (Z)-enylphosphonates in good yields with complete control over regio- and stereochemistry.
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Affiliation(s)
- Yan Cai
- State Key Laboratory of Elemento-Organic Chemistry
- Institute of Elemento-Organic Chemistry
- Nankai University
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin)
- Nankai University
| | - Haihong Ge
- State Key Laboratory of Elemento-Organic Chemistry
- Institute of Elemento-Organic Chemistry
- Nankai University
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin)
- Nankai University
| | - Chengbin Yu
- State Key Laboratory of Elemento-Organic Chemistry
- Institute of Elemento-Organic Chemistry
- Nankai University
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin)
- Nankai University
| | - Weize Sun
- State Key Laboratory of Elemento-Organic Chemistry
- Institute of Elemento-Organic Chemistry
- Nankai University
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin)
- Nankai University
| | - Junchen Zhan
- State Key Laboratory of Elemento-Organic Chemistry
- Institute of Elemento-Organic Chemistry
- Nankai University
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin)
- Nankai University
| | - Zhiwei Miao
- State Key Laboratory of Elemento-Organic Chemistry
- Institute of Elemento-Organic Chemistry
- Nankai University
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin)
- Nankai University
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16
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Debrouwer W, Heugebaert TSA, Van Hecke K, Stevens CV. Synthetic Entry into 1-Phosphono-3-azabicyclo[3.1.0]hexanes. J Org Chem 2013; 78:8232-41. [DOI: 10.1021/jo401185u] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Affiliation(s)
- Wouter Debrouwer
- SynBioC
Research Group, Department of Sustainable Organic Chemistry and Technology,
Faculty of Bioscience Engineering, Ghent University, Coupure links
653, B-9000 Gent, Belgium
| | - Thomas S. A. Heugebaert
- SynBioC
Research Group, Department of Sustainable Organic Chemistry and Technology,
Faculty of Bioscience Engineering, Ghent University, Coupure links
653, B-9000 Gent, Belgium
| | - Kristof Van Hecke
- Department
of Inorganic and Physical Chemistry, Faculty of Sciences, Ghent University, Krijgslaan 281-S3, B-9000 Gent, Belgium
| | - Christian V. Stevens
- SynBioC
Research Group, Department of Sustainable Organic Chemistry and Technology,
Faculty of Bioscience Engineering, Ghent University, Coupure links
653, B-9000 Gent, Belgium
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17
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Fernández de Trocóniz G, Ochoa de Retana AM, Pascual S, Ezpeleta JM, Palacios F. Regioselective Conjugate Addition of Nitriles to α,β-Unsaturated Imines: Synthesis of Fluorinated Primary Enamines and 2-Aminopyridine Derivatives. European J Org Chem 2013. [DOI: 10.1002/ejoc.201300580] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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18
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Alonso C, González M, Fuertes M, Rubiales G, Ezpeleta JM, Palacios F. Synthesis of Fluorinated β-Aminophosphonates and γ-Lactams. J Org Chem 2013; 78:3858-66. [DOI: 10.1021/jo400281e] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- Concepción Alonso
- Departamento de Quı́mica Orgánica I and Centro
de Investigacion Lascaray (Lascaray Research Center) and ‡Departamento de Fı́sica
Aplicada, Facultad de Farmacia, Universidad del País Vasco/Euskal Herriko Unibertsitatea (UPV/EHU), Paseo de la Universidad 7, 01006 Vitoria, Spain
| | - Marı́a González
- Departamento de Quı́mica Orgánica I and Centro
de Investigacion Lascaray (Lascaray Research Center) and ‡Departamento de Fı́sica
Aplicada, Facultad de Farmacia, Universidad del País Vasco/Euskal Herriko Unibertsitatea (UPV/EHU), Paseo de la Universidad 7, 01006 Vitoria, Spain
| | - Marı́a Fuertes
- Departamento de Quı́mica Orgánica I and Centro
de Investigacion Lascaray (Lascaray Research Center) and ‡Departamento de Fı́sica
Aplicada, Facultad de Farmacia, Universidad del País Vasco/Euskal Herriko Unibertsitatea (UPV/EHU), Paseo de la Universidad 7, 01006 Vitoria, Spain
| | - Gloria Rubiales
- Departamento de Quı́mica Orgánica I and Centro
de Investigacion Lascaray (Lascaray Research Center) and ‡Departamento de Fı́sica
Aplicada, Facultad de Farmacia, Universidad del País Vasco/Euskal Herriko Unibertsitatea (UPV/EHU), Paseo de la Universidad 7, 01006 Vitoria, Spain
| | - Jose Marı́a Ezpeleta
- Departamento de Quı́mica Orgánica I and Centro
de Investigacion Lascaray (Lascaray Research Center) and ‡Departamento de Fı́sica
Aplicada, Facultad de Farmacia, Universidad del País Vasco/Euskal Herriko Unibertsitatea (UPV/EHU), Paseo de la Universidad 7, 01006 Vitoria, Spain
| | - Francisco Palacios
- Departamento de Quı́mica Orgánica I and Centro
de Investigacion Lascaray (Lascaray Research Center) and ‡Departamento de Fı́sica
Aplicada, Facultad de Farmacia, Universidad del País Vasco/Euskal Herriko Unibertsitatea (UPV/EHU), Paseo de la Universidad 7, 01006 Vitoria, Spain
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19
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Turcheniuk KV, Kukhar VP, Röschenthaler GV, Aceña JL, Soloshonok VA, Sorochinsky AE. Recent advances in the synthesis of fluorinated aminophosphonates and aminophosphonic acids. RSC Adv 2013. [DOI: 10.1039/c3ra22891f] [Citation(s) in RCA: 132] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023] Open
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20
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Jin Z, Hidinger RS, Xu B, Hammond GB. Stereoselective Synthesis of Monofluoroalkyl α,β-Unsaturated Ketones From Allenyl Carbinol Esters Mediated by Gold and Selectfluor. J Org Chem 2012; 77:7725-9. [DOI: 10.1021/jo301239p] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Zhuang Jin
- Department of Chemistry, University of Louisville, Louisville, Kentucky 40292, United States
| | - Rachel S. Hidinger
- Department of Chemistry, University of Louisville, Louisville, Kentucky 40292, United States
| | - Bo Xu
- Department of Chemistry, University of Louisville, Louisville, Kentucky 40292, United States
| | - Gerald B. Hammond
- Department of Chemistry, University of Louisville, Louisville, Kentucky 40292, United States
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21
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Palacios F, Ochoa de Retana AM, Vélez del Burgo A. Selective synthesis of substituted pyrrole-2-phosphine oxides and -phosphonates from 2H-azirines and enolates from acetyl acetates and malonates. J Org Chem 2011; 76:9472-7. [PMID: 21999212 DOI: 10.1021/jo201932m] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A simple and efficient selective synthesis of 1H-pyrrole-2-phosphine oxides 3 and -phosphonates 7 by addition of enolates derived from acetyl acetates to 2H-azirinylphosphine oxide 1 and -phosphonate 6 is reported. Nucleophilic addition of enolates derived from diethyl malonate to 2H-azirines 1 and 6 led to the formation of functionalized 2-hydroxy-1H-pyrrole-5-phosphine oxide 9 and -phosphonate 10, while vinylogous α-aminoalkylphosphine oxides 14 and -phosphonate 15 may be obtained from azirines and the enolate derived from diethyl 2-phenylmalonate. Ring closure of vinylogous derivatives 14 and 15 in the presence of base led to the formation of 1,5-dihydro-3-pyrrolin-2-ones containing a phosphine oxide 17 or a phosphonate group 18.
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Affiliation(s)
- Francisco Palacios
- Departamento de Química Orgánica I, Facultad de Farmacia, Centro de Investigaciones y Estudios Avanzados Lucio Lascaray, Universidad del País Vasco, 01080 Vitoria, Spain.
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22
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Chávez MÁ, Vargas S, Suárez A, Álvarez E, Pizzano A. Highly Enantioselective Hydrogenation of β-Acyloxy and β-Acylamino α,β-Unsaturated Phosphonates Catalyzed by Rhodium Phosphane-Phosphite Complexes. Adv Synth Catal 2011. [DOI: 10.1002/adsc.201000611] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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23
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Monbaliu JCM, Masschelein KGR, Stevens CV. Electron-deficient 1- and 2-azabuta-1,3-dienes: a comprehensive survey of their synthesis and reactivity. Chem Soc Rev 2011; 40:4708-39. [PMID: 21655551 DOI: 10.1039/c1cs15070g] [Citation(s) in RCA: 66] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Electron-deficient 1- and 2-azabuta-1,3-dienes are reagents intrinsically able to provide a wide range of cyclic and acyclic N-containing building blocks. Depending on their substitution, they behave as dienes for Diels-Alder reactions, as partners for [4+1], [3+2], [2+2]-cycloadditions, for aziridinations and as electrophiles for 1,2 and 1,4-additions. Nowadays, they are a very versatile family of compounds, despite their usual instability and complex reactivity. Four decades of research in this challenging area are reviewed in this critical review: their synthetic aspects and their reactivity towards a wide range of dienophiles, dipoles and nucleophiles are described as well. The introduction focuses on their electronic properties in order to get a clear picture of their reactivity (190 references).
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Affiliation(s)
- Jean-Christophe M Monbaliu
- SynBioC Research Group, Department of Sustainable Organic Chemistry and Technology, Faculty of Bioscience Engineering, Ghent University, Coupure links 653, B-9000 Gent, Belgium
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24
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Affiliation(s)
- Javier Vicario
- a Departamento de Química Orgánica I, Facultad de Farmacia , Universidad del País Vasco , Vitoria , Spain
| | - Domitila Aparicio
- a Departamento de Química Orgánica I, Facultad de Farmacia , Universidad del País Vasco , Vitoria , Spain
| | - Francisco Palacios
- a Departamento de Química Orgánica I, Facultad de Farmacia , Universidad del País Vasco , Vitoria , Spain
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25
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Palacios F, Ochoa de Retana AM, Pascual S, Fernández de Trocóniz G. Efficient synthesis of fluorinated α- and β-amino nitriles from fluoroalkylated α,β-unsaturated imines. Tetrahedron 2011. [DOI: 10.1016/j.tet.2010.12.046] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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26
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Liu J, Hu J. Highly diastereoselective synthesis of α-difluoromethyl amines from N-tert-butylsulfinyl ketimines and difluoromethyl phenyl sulfone. Chemistry 2010; 16:11443-54. [PMID: 20725920 DOI: 10.1002/chem.201000893] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
The first highly efficient and stereoselective difluoromethylation of structurally diverse N-tert-butylsulfinyl ketimines has been achieved with an in situ generated PhSO(2)CF(2)(-) anion, which provides a powerful synthetic method for the preparation of a variety of structurally diverse homochiral α-difluoromethyl tertiary carbinamines, including α-difluoromethyl allylic amines and α-difluoromethyl propargylamines. The stereocontrol mode of the present diastereoselective difluoromethylation of ketimines was found to be different from that of other known fluoroalkylations of N-tert-butylsulfinyl aldimines, which suggests that a cyclic six-membered transition state may be involved in the reaction.
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Affiliation(s)
- Jun Liu
- Key Laboratory of Organofluorine Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Ling-Ling Road, Shanghai 200032, China
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27
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Palacios F, Ochoa de Retana AM, Pascual S, de Trocóniz GF, Ezpeleta JM. Fluoroalkylated α,β-Unsaturated Imines: Efficient and Versatile Substrates for the Synthesis of Fluorinated Vinylogous β-Amino Esters and 3,4-Dihydropyridin-2-ones. European J Org Chem 2010. [DOI: 10.1002/ejoc.201000948] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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28
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Rulev AY, Muzalevskiy VM, Kondrashov EV, Ushakov IA, Shastin AV, Balenkova ES, Haufe GÃ, Nenajdenko VG. A Cascade Approach to Captodative Trifluoromethylated Enamines or Vinylogous Guanidinium Salts: Aromatic Substituents as Switches of Reaction Direction. European J Org Chem 2010. [DOI: 10.1002/ejoc.200900926] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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29
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Doherty S, Knight JG, Bell AL, El-Menabawey S, Vogels CM, Decken A, Westcott SA. Rhodium complexes of (R)-Me-CATPHOS and (R)-(S)-JOSIPHOS: highly enantioselective catalysts for the asymmetric hydrogenation of (E)- and (Z)-β-aryl-β-(enamido)phosphonates. ACTA ACUST UNITED AC 2009. [DOI: 10.1016/j.tetasy.2009.05.023] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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30
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de los Santos JM, Ignacio R, Aparicio D, Palacios F, Ezpeleta JM. Reactions of Conjugate Phosphinyl- and Phosphonyl-Nitroso Alkenes with Enamines. Preparation ofN-Hydroxypyrrole Derivatives. J Org Chem 2009; 74:3444-8. [DOI: 10.1021/jo900489j] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Jesús M. de los Santos
- Departamento de Química Orgánica I, Facultad de Farmacia, Universidad del País Vasco, Apartado 450, 01080 Vitoria, Spain
| | - Roberto Ignacio
- Departamento de Química Orgánica I, Facultad de Farmacia, Universidad del País Vasco, Apartado 450, 01080 Vitoria, Spain
| | - Domitila Aparicio
- Departamento de Química Orgánica I, Facultad de Farmacia, Universidad del País Vasco, Apartado 450, 01080 Vitoria, Spain
| | - Francisco Palacios
- Departamento de Química Orgánica I, Facultad de Farmacia, Universidad del País Vasco, Apartado 450, 01080 Vitoria, Spain
| | - José M. Ezpeleta
- Departamento de Física Aplicada II, Facultad de Farmacia, Universidad del País Vasco, Apartado 450, 01080 Vitoria, Spain
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31
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Synthesis and reactivity of alkenyl- and alkynyl-substituted β,β-dihalo-and β,β,β-trichloroamines. Tetrahedron 2009. [DOI: 10.1016/j.tet.2009.01.034] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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32
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Regioselective synthesis of pyrrolin-3-ones and 2,3,4,5-tetrahydro[1,3]-oxazines from N-vinylic amidines. Tetrahedron 2009. [DOI: 10.1016/j.tet.2008.12.014] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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33
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Vicario J, Aparicio D, Palacios F. Conjugate Addition of Amines to an α,β-Unsaturated Imine Derived from α-Aminophosphonate. Synthesis of γ-Amino-α-dehydroaminophosphonates. J Org Chem 2008; 74:452-5. [DOI: 10.1021/jo8022022] [Citation(s) in RCA: 42] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Javier Vicario
- Departamento de Química Orgánica I, Facultad de Farmacia, Universidad del País Vasco, Apartado 450, 01080 Vitoria, Spain
| | - Domitila Aparicio
- Departamento de Química Orgánica I, Facultad de Farmacia, Universidad del País Vasco, Apartado 450, 01080 Vitoria, Spain
| | - Francisco Palacios
- Departamento de Química Orgánica I, Facultad de Farmacia, Universidad del País Vasco, Apartado 450, 01080 Vitoria, Spain
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34
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Groenendaal B, Ruijter E, Orru RVA. 1-Azadienes in cycloaddition and multicomponent reactions towards N-heterocycles. Chem Commun (Camb) 2008:5474-89. [PMID: 18997927 DOI: 10.1039/b809206k] [Citation(s) in RCA: 178] [Impact Index Per Article: 11.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
1-Azadienes are versatile building blocks for the efficient construction of various N-heterocycles. Depending on the substitution pattern and reaction partner, they may participate in a range of different reactions. An overview of recent methods for the generation of 1-azadienes is presented, as well as their application in cycloaddition, electrocyclization, and multicomponent reactions. Considering the broad range of reactivities and resulting heterocyclic scaffold structures, 1-azadienes are very useful reactive intermediates for the development of modular reaction sequences in diversity-oriented synthesis.
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Affiliation(s)
- Bas Groenendaal
- Department of Chemistry and Pharmaceutical Sciences, Vrije Universiteit Amsterdam, De Boelelaan 1083, 1081 HV, Amsterdam, The Netherlands
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35
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Palacios F, Retana AMOD, Oyarzabal J, Pascual S, Trocóniz GFD. Synthesis of Fluoroalkylated β-Aminophosphonates and Pyridines from Primary β-Enaminophosphonates. J Org Chem 2008; 73:4568-74. [DOI: 10.1021/jo8005667] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- Francisco Palacios
- Departamento de Química Orgánica I, Facultad de Farmacia, Universidad del País Vasco, Apartado 450, 01080-Vitoria, Spain
| | - Ana M. Ochoa de Retana
- Departamento de Química Orgánica I, Facultad de Farmacia, Universidad del País Vasco, Apartado 450, 01080-Vitoria, Spain
| | - Julen Oyarzabal
- Departamento de Química Orgánica I, Facultad de Farmacia, Universidad del País Vasco, Apartado 450, 01080-Vitoria, Spain
| | - Sergio Pascual
- Departamento de Química Orgánica I, Facultad de Farmacia, Universidad del País Vasco, Apartado 450, 01080-Vitoria, Spain
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36
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Kadyrov R, Holz J, Schäffner B, Zayas O, Almena J, Börner A. Synthesis of chiral β-aminophosphonates via Rh-catalyzed asymmetric hydrogenation of β-amido-vinylphosphonates. ACTA ACUST UNITED AC 2008. [DOI: 10.1016/j.tetasy.2008.04.019] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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37
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Magueur G, Crousse B, Bonnet-Delpon D. Stereoselective Access to Substituted [(E)- or (Z)-1-(Trifluoromethyl)allyl]amines. European J Org Chem 2008. [DOI: 10.1002/ejoc.200701090] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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38
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de los Santos JM, López Y, Aparicio D, Palacios F. A Convenient Synthesis of Substituted Pyrazolidines and Azaproline Derivatives through Highly Regio- and Diastereoselective Reduction of 2-Pyrazolines. J Org Chem 2007; 73:550-7. [DOI: 10.1021/jo702050t] [Citation(s) in RCA: 43] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Jesús M. de los Santos
- Departamento de Química Orgánica I, Facultad de Farmacia, Universidad del País Vasco, Apartado 450, 01080 Vitoria, Spain
| | - Yago López
- Departamento de Química Orgánica I, Facultad de Farmacia, Universidad del País Vasco, Apartado 450, 01080 Vitoria, Spain
| | - Domitila Aparicio
- Departamento de Química Orgánica I, Facultad de Farmacia, Universidad del País Vasco, Apartado 450, 01080 Vitoria, Spain
| | - Francisco Palacios
- Departamento de Química Orgánica I, Facultad de Farmacia, Universidad del País Vasco, Apartado 450, 01080 Vitoria, Spain
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39
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Aggarwal R, Kumar R, Kumar V. A facile and rapid one-pot synthesis of 1,4-diaryl-2-mercaptoimidazoles under solvent-free conditions. J Sulphur Chem 2007. [DOI: 10.1080/17415990701625035] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Affiliation(s)
- Ranjana Aggarwal
- a Department of Chemistry , Kurukshetra University , Kurukshetra, 136 119, Haryana, India
| | - Rajiv Kumar
- a Department of Chemistry , Kurukshetra University , Kurukshetra, 136 119, Haryana, India
| | - Vinod Kumar
- a Department of Chemistry , Kurukshetra University , Kurukshetra, 136 119, Haryana, India
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40
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Druzhinin SV, Balenkova ES, Nenajdenko VG. Recent advances in the chemistry of α,β-unsaturated trifluoromethylketones. Tetrahedron 2007. [DOI: 10.1016/j.tet.2007.04.029] [Citation(s) in RCA: 146] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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41
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Palacios F, Vicario J, Aparicio D. Efficient synthesis of 1-azadienes derived from alpha-aminoesters. Regioselective preparation of alpha-dehydroamino acids, vinylglycines, and alpha-amino acids. J Org Chem 2007; 71:7690-6. [PMID: 16995675 DOI: 10.1021/jo061140f] [Citation(s) in RCA: 44] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
An efficient synthesis of 1-azadienes derived from alpha-aminoesters is achieved through an aza-Wittig reaction of phosphazenes with beta,gamma-unsaturated alpha-ketoesters. Regioselective 1,2-reduction of these functionalized 1-azadienes affords vinylglycine derivatives, while conjugative 1,4-reduction gives alpha-dehydroamino acid compounds. Reduction of both the carbon-carbon and the imine-carbon-nitrogen double bonds leads to the formation of alpha-amino acid derivatives.
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Affiliation(s)
- Francisco Palacios
- Departamento de Química Orgánica I, Facultad de Farmacia, Universidad del País Vasco, Apartado 450, 01080 Vitoria-Gasteiz, Spain.
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42
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Palacios F, Ochoa de Retana AM, Alonso JM. Regioselective synthesis of fluoroalkylated beta-aminophosphorus derivatives and aziridines from phosphorylated oximes and nucleophilic reagents. J Org Chem 2007; 71:6141-8. [PMID: 16872198 DOI: 10.1021/jo060865g] [Citation(s) in RCA: 55] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A simple and efficient stereoselective synthesis of fluoroalkyl substituted aziridine-2-phosphine oxides and -phosphonates by diastereoselective addition of methoxide, imidazole, benzenethiol, and Grignard reagents to functionalized ketoxime-phosphine oxides and -phosphonates is described. Aziridines are used as intermediates for the regioselective synthesis of fluorine containing beta-amino phosphine oxides and beta-amino phosphonates. Amino phosphorus derivatives can also be obtained from ketoximes derived from phosphine oxides and phosphonates with sodium borohydride.
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Affiliation(s)
- Francisco Palacios
- Departamento de Química Organica I, Facultad de Farmacia, Universidad del País Vasco, Apartado 450, 01080, Vitoria, Spain.
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43
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de los Santos JM, Ignacio R, Aparicio D, Palacios F. Michael Addition of Amine Derivatives to Conjugate Phosphinyl and Phosphonyl Nitrosoalkenes. Preparation of α-Amino Phosphine Oxide and Phosphonate Derivatives. J Org Chem 2007; 72:5202-6. [PMID: 17579451 DOI: 10.1021/jo0705521] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The synthesis of nitrosoalkenes derived from phosphine oxides and phosphonates generated through base-mediated dehydrohalogenations of readily available alpha-halooximes is reported. These highly reactive intermediates act as Michael acceptors toward nucleophilic reagents such as ammonia, amines, and optically active amino esters, furnishing alpha-amino phosphine oxides and phosphonates in a highly regioselective fashion.
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Affiliation(s)
- Jesús M de los Santos
- Departamento de Química Orgánica I, Facultad de Farmacia, Universidad del País Vasco, Apartado 450, 01080 Vitoria, Spain
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44
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Palacios F, Vicario J, Maliszewska A, Aparicio D. Synthesis of α-Phosphorylated α,β-Unsaturated Imines and Their Selective Reduction to Vinylogous and Saturated α-Aminophosphonates. J Org Chem 2007; 72:2682-5. [PMID: 17328577 DOI: 10.1021/jo062609+] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
An efficient synthesis of alpha,beta-unsaturated imines derived from alpha-aminophosphonates is achieved through aza-Wittig reaction of P-trimethyl phosphazenes with beta,gamma-unsaturated alpha-ketophosphonates. Selective 1,2-reduction of such 1-azadienes affords beta,gamma-unsaturated alpha-aminophosphonates, phosphorylated analogs of vinylglycines, which are hydrogenated to yield saturated alpha-aminophosphonate derivatives.
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Affiliation(s)
- Francisco Palacios
- Departamento de Química Orgánica I, Facultad de Farmacia, Universidad del País Vasco, Apartado 450, 01080 Vitoria, Spain.
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45
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Palacios F, Vicario J. Copper-Catalyzed Asymmetric Conjugate Addition of Diethylzinc to α,β-Unsaturated Imines Derived from α-Aminoacids. Enantioselective Synthesis of γ-Substituted α-Dehydroaminoesters. Org Lett 2006; 8:5405-8. [PMID: 17078729 DOI: 10.1021/ol062294k] [Citation(s) in RCA: 52] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
[Structure: see text] A highly enantioselective synthesis of alpha-dehydroaminoacids with a stereogenic center in the gamma position through copper-catalyzed asymmetric conjugate addition of diethylzinc to alpha,beta-unsaturated imines using a TADDOL-derived phosphoramidite complex is reported.
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Affiliation(s)
- Francisco Palacios
- Departamento de Química Organica I, Facultad de Farmacia, Universidad del País Vasco, Apartado 450, 01080 Vitoria-Gasteiz, Spain.
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46
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Kumara Swamy K, Balaraman E, Satish Kumar N. Synthesis and utility of new amine/nucleobase addition products of allenylphosphonates. Tetrahedron 2006. [DOI: 10.1016/j.tet.2006.08.034] [Citation(s) in RCA: 35] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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47
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Palacios F, Alonso C, Legido M, Rubiales G, Villegas M. Synthesis and subsequent reactivity of 1-amino-2-aza-1,3-butadienes derived from β-amino esters. Tetrahedron Lett 2006. [DOI: 10.1016/j.tetlet.2006.08.072] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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48
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Palacios F, de Retana AMO, Alonso JM. Reaction of 2H-azirine phosphine oxide and -phosphonates with nucleophiles. Stereoselective Synthesis of functionalized aziridines and alpha- and beta-aminophosphorus derivatives. J Org Chem 2006; 70:8895-901. [PMID: 16238324 DOI: 10.1021/jo051404i] [Citation(s) in RCA: 55] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
[reaction: see text] A simple and efficient stereoselective synthesis of aziridine-2-phosphonate 3, and -phosphine oxide 5 by diastereoselective addition of Grignard reagents to 2H-azirine phosphonate 1 and -phosphine oxide 4 is reported. Similarly, the addition of heterocyclic amines and benzenethiol to aziridines 1 and 4 yielded functionalized aziridines 10, 11, and 18. These aziridines are used as intermediates for the regioselective synthesis of beta-aminophosphine oxides 6 and beta-aminophosphonates 7, as well as alpha- aminophosphonates 8. Phenylsulfenyl-substituted alpha-aminophosphorus derivatives 15 and 19 are obtained directly from benzenethiol and 2H-azirine phosphonates 1 and -phosphine oxides 4.
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Affiliation(s)
- Francisco Palacios
- Departamento de Química Orgánica I, Facultad de Farmacia, Universidad del País Vasco, Vitoria, Spain.
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49
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Palacios F, Vicario J, Aparicio D. An Efficient Synthesis of Achiral and Chiral Cyclic Dehydro-α-Amino Acid Derivatives Through Nucleophilic Addition of Amines to β,γ-Unsaturatedα-Keto Esters. European J Org Chem 2006. [DOI: 10.1002/ejoc.200600092] [Citation(s) in RCA: 60] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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