1 Ocak 2018 Dergi makalesi Açık Erişim

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

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        "affiliation": "Ataturk Univ, Chem Dept, Fac Sci, TR-25240 Erzurum, Turkey", 
        "name": "Cakici, Murat"
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      {
        "affiliation": "Ataturk Univ, Chem Dept, Fac Sci, TR-25240 Erzurum, Turkey", 
        "name": "Kilic, Hamdullah"
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      {
        "affiliation": "Osmaniye Korkut Ata Univ, Fac Sci & Letters, Chem Dept, TR-80000 Osmaniye, Turkey", 
        "name": "Ulukanli, Sabri"
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      {
        "affiliation": "Ataturk Univ, Chem Dept, Fac Sci, TR-25240 Erzurum, Turkey", 
        "name": "Ekinci, Duygu"
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    "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.", 
    "doi": "10.1016/j.tet.2017.11.034", 
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      "issue": "1", 
      "pages": "49-57", 
      "title": "TETRAHEDRON", 
      "volume": "74"
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    "title": "Evidence for involvement of cationic intermediate in epoxidation of chiral allylic alcohols and unfunctionalised alkenes catalysed by Mn-III(quinazolinone) complexes"
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