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Construction of Safer Oxidation Systems

Research Project

Project/Area Number 14550809
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field 有機工業化学
Research InstitutionOsaka University

Principal Investigator

MASUYAMA Araki  Osaka University, Graduate School of Engineering, Associate Professor, 大学院・工学研究科, 助教授 (30157218)

Project Period (FY) 2002 – 2003
Project Status Completed (Fiscal Year 2003)
Budget Amount *help
¥3,600,000 (Direct Cost: ¥3,600,000)
Fiscal Year 2003: ¥1,200,000 (Direct Cost: ¥1,200,000)
Fiscal Year 2002: ¥2,400,000 (Direct Cost: ¥2,400,000)
KeywordsAmphiphilic Hydroperoxides / Oxidation of Benzyl Sulfide / Epoxidation of Geraniol / Micellar Oxidation Systems / Functional Micelles / Oxone / Allylic Hydroperoxides / Radical Cyclization / ミセル水溶液系酸化反応 / 両親媒性ケトン / リスクミニマム酸化反応 / 水媒質中での有機反応 / グリーンケミストリー / ミセル水溶液酸化反応
Research Abstract

1. New Protocol for Oxidation in Water : Micellar Oxidation Systems Composed of α-AHP
A series of novel amphiphilic hydroperoxides, α-alkoxyalkyl hydroperoxides (α-AHP) and their related hydroperoxides, were prepared with the intention of developing new oxidizing agents bearing a micelle-forming character in water. Both oxidation of benzyl sulfide and epoxidation of geraniol promoted by these hydroperoxides were investigated in detail under various conditions. Because the conversion of each substrate in the micellar systems was higher than that in nonmicellar media, the solubilization of substrates into micelles was certainly effective in promoting oxidations of insoluble substrates in aqueous media.
2. Safer Oxidation Systems Composed of Oxone and Amphiphilic Ketones in Water
New nonionic surfactant bearing a carbonyl group at the terminal position of hydrophilic moiety were prepared and were applied to newly designed micellar aqueous oxidation systems composed of Oxone (2KHSO_5-KHSO_4・K_2S0_4) as an oxidizing agent. Both solubilization of substrates by micelles of these surfactants and active peroxo species generated by the reaction of these surfactants with Oxone in situ were the keys in promoting effective epoxidation of various alkenes in water.
3. Radical Cyclization Initiated by the Reaction of Allylic Hydroperoxides with FeSO_4 in Aqueous Media
Treatment of 1-methyl-2-methylene-1-cyclohexane with a mixture of FeSO_4/CuCl_2 in aqueous media yielded 1-(1-chlorocyclohexyl)ethanones as the major product consistent with 6-endo-trig cyclization of the intermediate alkyl radical. This strategy was extended to the ring enlargement of a series of 1 -isopropylcycloalkyl hydroperoxides. Regioselective 7-or 8-endo-trig cyclization reactions could be achieved by treatment of the corresponding cyclopentyl or cyclohexyl hydroperoxides with a mixture of FeSO_4/CuCl_2 in aqueous media.

Report

(3 results)
  • 2003 Annual Research Report   Final Research Report Summary
  • 2002 Annual Research Report
  • Research Products

    (6 results)

All Other

All Publications (6 results)

  • [Publications] A.Masuyama, T.Sugawara, M.Nojima, K.J.McCullough: "Regioselective radical cyclization initiated by the reaction of allylic hydroperoxides with iron(II) sulfate"Tetrahedron. 59(3). 353-366 (2003)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] A.Masuyama, K.Fukuoka, N.Katsuyama, M.Nojima: "New Protocol for Oxidation in Water : Micellar Oxidation Systems Composed of Novel Amphiphilic Hydroperoxides"Langmuir. 20(1). 82-89 (2004)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Araki Masuyama, Tomohiro Sugawara, Masatomo Nojima, Kevin J.McCullough: "Regioselective radical cyclization initiated by the reaction of allylic hydroperoxides with iron(II) sulfate"Tetrahedron. 59(3). 353-366 (2003)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Araki Masuyama, Kazuyuki Fukuoka, Naoko Katsuyama, Masatomo Nojima: "New Protocol for Oxidation in Water: Micellar Oxidation Systems Composed of Novel Amphiphilic Hydroperoxides"Langmuir. 20(1). 82-89 (2004)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] A.Masuyama, K.Fukuoka, N.Katsuyama, M.Nojima: "New Protocol for Oxidation in Water : Micellar Oxidation Systems Composed of Novel Amphiphilic Hydroperoxides"Langmuir. 20(1). 82-89 (2004)

    • Related Report
      2003 Annual Research Report
  • [Publications] A.Masuyama et al.: "Regioselective radical cyclization initiated by the reaction of allylic hydroperoxides with iron(II) sulfate"Tetrahedron. 59(3). 353-366 (2003)

    • Related Report
      2002 Annual Research Report

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Published: 2002-04-01   Modified: 2016-04-21  

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