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Al-Huniti MH, Sullivan ZB, Stanley JL, Carson JA, Hyatt IFD, Hairston AC, Croatt MP. Hypervalent Iodonium Alkynyl Triflate Generated Phenylcyanocarbene and Its Reactivity with Aromatic Systems. J Org Chem 2017; 82:11772-11780. [PMID: 28841312 DOI: 10.1021/acs.joc.7b01608] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Phenylcyanocarbene was generated by the reaction of azide with a hypervalent iodonium alkynyl triflate and reacted in situ with 21 different carbocyclic and heterocyclic aromatic compounds. These reactions led to more complex products that frequently underwent subsequent rearrangements. The reactivity was further explored in a mechanistic study to ascertain the chemoselectivity and stereospecificity.
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Affiliation(s)
- Mohammed H Al-Huniti
- Department of Chemistry and Biochemistry, University of North Carolina at Greensboro , 435 Sullivan Science Building, Greensboro, North Carolina 27402, United States
| | - Zachary B Sullivan
- Department of Chemistry and Biochemistry, University of North Carolina at Greensboro , 435 Sullivan Science Building, Greensboro, North Carolina 27402, United States
| | - Jarrod L Stanley
- Department of Chemistry and Biochemistry, University of North Carolina at Greensboro , 435 Sullivan Science Building, Greensboro, North Carolina 27402, United States
| | - James A Carson
- Department of Chemistry and Biochemistry, University of North Carolina at Greensboro , 435 Sullivan Science Building, Greensboro, North Carolina 27402, United States
| | - I F Dempsey Hyatt
- Department of Chemistry, Adelphi University , 1 South Avenue, Garden City, New York 11530, United States
| | - A Christina Hairston
- Department of Chemistry and Biochemistry, University of North Carolina at Greensboro , 435 Sullivan Science Building, Greensboro, North Carolina 27402, United States
| | - Mitchell P Croatt
- Department of Chemistry and Biochemistry, University of North Carolina at Greensboro , 435 Sullivan Science Building, Greensboro, North Carolina 27402, United States
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Affiliation(s)
- Curt Wentrup
- School of Chemistry and Molecular
Biosciences, The University of Queensland, Brisbane, Queensland 4072, Australia
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3
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Navrátil R, Tarábek J, Linhart I, Martinů T. Radical and Nitrenoid Reactivity of 3-Halo-3-phenyldiazirines. Org Lett 2016; 18:3734-7. [PMID: 27437559 DOI: 10.1021/acs.orglett.6b01753] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
3-Halo-3-phenyl-3H-diazirines (halogen = Br or Cl) undergo a dissociative single-electron transfer from alkyllithiums (RLi) in THF-based solvent mixtures. The resulting 3-phenyldiazirinyl radical, observed by EPR spectroscopy, is eventually transformed to benzonitrile. In Et2O, 2 equiv of RLi add to both nitrogens of halodiazirine N═N bond, affording N,N'-dialkylbenzamidines. The nitrenoid reactivity of some N-alkyl-1H-diazirine intermediates is manifested by their insertion into the α-C-H bond of THF or Et2O.
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Affiliation(s)
- Rafael Navrátil
- Department of Organic Chemistry, University of Chemistry and Technology , Technická 5, 166 28 Prague, Czech Republic
| | - Ján Tarábek
- Institute of Organic Chemistry and Biochemistry CAS, v.v.i., Flemingovo náměstí 542/2, 166 10 Prague, Czech Republic
| | - Igor Linhart
- Department of Organic Chemistry, University of Chemistry and Technology , Technická 5, 166 28 Prague, Czech Republic
| | - Tomáš Martinů
- Department of Organic Chemistry, University of Chemistry and Technology , Technická 5, 166 28 Prague, Czech Republic
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Høj M, Kvaskoff D, Wentrup C. Nitrene-Carbene-Carbene Rearrangement. Photolysis and Thermolysis of Tetrazolo[5,1-a]phthalazine with Formation of 1-Phthalazinylnitrene, o-Cyanophenylcarbene, and Phenylcyanocarbene. J Org Chem 2013; 79:307-13. [DOI: 10.1021/jo402448u] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Affiliation(s)
- Martin Høj
- School
of Chemistry and Molecular
Biosciences, The University of Queensland, Brisbane, Queensland 4072, Australia
| | - David Kvaskoff
- School
of Chemistry and Molecular
Biosciences, The University of Queensland, Brisbane, Queensland 4072, Australia
| | - Curt Wentrup
- School
of Chemistry and Molecular
Biosciences, The University of Queensland, Brisbane, Queensland 4072, Australia
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Clemens JJ, Asgian JL, Busch BB, Coon T, Ernst J, Kaljevic L, Krenitsky PJ, Neubert TD, Schweiger EJ, Termin A, Stamos D. Diastereoselective One-Pot Knoevenagel Condensation/Corey–Chaykovsky Cyclopropanation. J Org Chem 2012; 78:780-5. [DOI: 10.1021/jo302443k] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Jeremy J. Clemens
- Department
of Drug Innovation, Vertex Pharmaceuticals, 11010 Torreyana Road, San Diego, California
92121, United States
| | - Juliana L. Asgian
- Department
of Drug Innovation, Vertex Pharmaceuticals, 11010 Torreyana Road, San Diego, California
92121, United States
| | - Brett B. Busch
- Department
of Drug Innovation, Vertex Pharmaceuticals, 11010 Torreyana Road, San Diego, California
92121, United States
| | - Timothy Coon
- Department
of Drug Innovation, Vertex Pharmaceuticals, 11010 Torreyana Road, San Diego, California
92121, United States
| | - Justin Ernst
- Department
of Drug Innovation, Vertex Pharmaceuticals, 11010 Torreyana Road, San Diego, California
92121, United States
| | - Leonard Kaljevic
- Department
of Drug Innovation, Vertex Pharmaceuticals, 11010 Torreyana Road, San Diego, California
92121, United States
| | - Paul J. Krenitsky
- Department
of Drug Innovation, Vertex Pharmaceuticals, 11010 Torreyana Road, San Diego, California
92121, United States
| | - Timothy D. Neubert
- Department
of Drug Innovation, Vertex Pharmaceuticals, 11010 Torreyana Road, San Diego, California
92121, United States
| | - Edwin J. Schweiger
- Department
of Drug Innovation, Vertex Pharmaceuticals, 11010 Torreyana Road, San Diego, California
92121, United States
| | - Andreas Termin
- Department
of Drug Innovation, Vertex Pharmaceuticals, 11010 Torreyana Road, San Diego, California
92121, United States
| | - Dean Stamos
- Department
of Drug Innovation, Vertex Pharmaceuticals, 11010 Torreyana Road, San Diego, California
92121, United States
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Banert K, Arnold R, Hagedorn M, Thoss P, Auer AA. 1-Azido-1-Alkynes: Synthesis and Spectroscopic Characterization of Azidoacetylene. Angew Chem Int Ed Engl 2012. [DOI: 10.1002/ange.201203626] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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8
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Banert K, Arnold R, Hagedorn M, Thoss P, Auer AA. 1-Azido-1-Alkynes: Synthesis and Spectroscopic Characterization of Azidoacetylene. Angew Chem Int Ed Engl 2012; 51:7515-8. [DOI: 10.1002/anie.201203626] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2012] [Indexed: 11/11/2022]
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Moss RA, Fedorynski M, Kmiecik-Ławrynowicz G, Terpinski J. Exchange reactions of diazirines: 3-X-3-methyldiazirines and derived carbenes. Tetrahedron Lett 1986. [DOI: 10.1016/s0040-4039(00)84622-5] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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