1 Ocak 2018 Dergi makalesi Açık Erişim

Cakici, Murat; Kilic, Hamdullah; Ulukanli, Sabri; Ekinci, Duygu

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{
  "@context": "https://schema.org/", 
  "@id": 29995, 
  "@type": "ScholarlyArticle", 
  "creator": [
    {
      "@type": "Person", 
      "affiliation": "Ataturk Univ, Chem Dept, Fac Sci, TR-25240 Erzurum, Turkey", 
      "name": "Cakici, Murat"
    }, 
    {
      "@type": "Person", 
      "affiliation": "Ataturk Univ, Chem Dept, Fac Sci, TR-25240 Erzurum, Turkey", 
      "name": "Kilic, Hamdullah"
    }, 
    {
      "@type": "Person", 
      "affiliation": "Osmaniye Korkut Ata Univ, Fac Sci & Letters, Chem Dept, TR-80000 Osmaniye, Turkey", 
      "name": "Ulukanli, Sabri"
    }, 
    {
      "@type": "Person", 
      "affiliation": "Ataturk Univ, Chem Dept, Fac Sci, TR-25240 Erzurum, Turkey", 
      "name": "Ekinci, Duygu"
    }
  ], 
  "datePublished": "2018-01-01", 
  "description": "A pair of Mn-III(quinazolinone) complexes was prepared and evaluated in the catalytic epoxidation of the chiral allylic alcohols and unfunctionalised alkenes with iodosylbenzene. Epoxidation of chiral allylic alcohols with 1,3-allylic strain proceeded chemo- and diastereoselectively to give threo-epoxy alcohol (up to 99% d.r). Epoxidation of unfunctionalised alkenes by the proposed catalyst system proceeded nonselectively, as evidenced by the formation of isomerization and rearrangement products in the epoxidation of (Z)-stilbene. A three-step pathway involving a cationic intermediate is proposed for the formation of isomerization and rearrangement products. The fact that only products resulting from the cationic intermediate were detected in the oxidation of a mechanistic probe, (2-methoxy-3-vinylcyclopropyl)benzene, with Mn-III(quinazolinone) and PhIO substantiated the cationic oxygen transfer mechanism. (C) 2017 Elsevier Ltd. All rights reserved.", 
  "headline": "Evidence for involvement of cationic intermediate in epoxidation of chiral allylic alcohols and unfunctionalised alkenes catalysed by Mn-III(quinazolinone) complexes", 
  "identifier": 29995, 
  "image": "https://aperta.ulakbim.gov.tr/static/img/logo/aperta_logo_with_icon.svg", 
  "license": "http://www.opendefinition.org/licenses/cc-by", 
  "name": "Evidence for involvement of cationic intermediate in epoxidation of chiral allylic alcohols and unfunctionalised alkenes catalysed by Mn-III(quinazolinone) complexes", 
  "url": "https://aperta.ulakbim.gov.tr/record/29995"
}