Dergi makalesi Açık Erişim
Cakici, Murat; Kilic, Hamdullah; Ulukanli, Sabri; Ekinci, Duygu
<?xml version='1.0' encoding='UTF-8'?> <record xmlns="http://www.loc.gov/MARC21/slim"> <leader>00000nam##2200000uu#4500</leader> <datafield tag="700" ind1=" " ind2=" "> <subfield code="a">Kilic, Hamdullah</subfield> <subfield code="u">Ataturk Univ, Chem Dept, Fac Sci, TR-25240 Erzurum, Turkey</subfield> </datafield> <datafield tag="700" ind1=" " ind2=" "> <subfield code="a">Ulukanli, Sabri</subfield> <subfield code="u">Osmaniye Korkut Ata Univ, Fac Sci & Letters, Chem Dept, TR-80000 Osmaniye, Turkey</subfield> </datafield> <datafield tag="700" ind1=" " ind2=" "> <subfield code="a">Ekinci, Duygu</subfield> <subfield code="u">Ataturk Univ, Chem Dept, Fac Sci, TR-25240 Erzurum, Turkey</subfield> </datafield> <datafield tag="909" ind1="C" ind2="4"> <subfield code="p">TETRAHEDRON</subfield> <subfield code="v">74</subfield> <subfield code="n">1</subfield> <subfield code="c">49-57</subfield> </datafield> <datafield tag="980" ind1=" " ind2=" "> <subfield code="a">user-tubitak-destekli-proje-yayinlari</subfield> </datafield> <datafield tag="540" ind1=" " ind2=" "> <subfield code="a">Creative Commons Attribution</subfield> <subfield code="u">http://www.opendefinition.org/licenses/cc-by</subfield> </datafield> <datafield tag="024" ind1=" " ind2=" "> <subfield code="a">10.1016/j.tet.2017.11.034</subfield> <subfield code="2">doi</subfield> </datafield> <datafield tag="245" ind1=" " ind2=" "> <subfield code="a">Evidence for involvement of cationic intermediate in epoxidation of chiral allylic alcohols and unfunctionalised alkenes catalysed by Mn-III(quinazolinone) complexes</subfield> </datafield> <datafield tag="100" ind1=" " ind2=" "> <subfield code="a">Cakici, Murat</subfield> <subfield code="u">Ataturk Univ, Chem Dept, Fac Sci, TR-25240 Erzurum, Turkey</subfield> </datafield> <datafield tag="909" ind1="C" ind2="O"> <subfield code="o">oai:zenodo.org:29995</subfield> <subfield code="p">user-tubitak-destekli-proje-yayinlari</subfield> </datafield> <datafield tag="650" ind1="1" ind2="7"> <subfield code="2">opendefinition.org</subfield> <subfield code="a">cc-by</subfield> </datafield> <datafield tag="260" ind1=" " ind2=" "> <subfield code="c">2018-01-01</subfield> </datafield> <datafield tag="856" ind1="4" ind2=" "> <subfield code="u">https://aperta.ulakbim.gov.trrecord/29995/files/bib-4ef2b2e8-1b4a-4103-8576-896fb0c16cbe.txt</subfield> <subfield code="z">md5:29eb7335150319cd02135ef6def58c06</subfield> <subfield code="s">250</subfield> </datafield> <datafield tag="542" ind1=" " ind2=" "> <subfield code="l">open</subfield> </datafield> <controlfield tag="005">20210315180844.0</controlfield> <controlfield tag="001">29995</controlfield> <datafield tag="980" ind1=" " ind2=" "> <subfield code="a">publication</subfield> <subfield code="b">article</subfield> </datafield> <datafield tag="520" ind1=" " ind2=" "> <subfield code="a">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.</subfield> </datafield> </record>
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