1 Ocak 2011 Dergi makalesi Açık Erişim

Zora, Metin; Kivrak, Arif; Yazici, Ceyda

Dublin Core

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  <dc:creator>Zora, Metin</dc:creator>
  <dc:creator>Kivrak, Arif</dc:creator>
  <dc:creator>Yazici, Ceyda</dc:creator>
  <dc:date>2011-01-01</dc:date>
  <dc:description>Electrophilic cyclizations of alpha,beta-alkynic hydrazones by molecular iodine were investigated for the synthesis of 4-iodopyrazoles. alpha,beta-Alkynic hydrazones were readily prepared by the reactions of hydrazines with propargyl aldehydes and ketones. When treated with molecular iodine in the presence of sodium bicarbonate, alpha,beta-alkynic hydrazones underwent electrophilic cyclization to afford 4-iodopyrazoles in good to high yields. Iodocyclization was general for a wide range of alpha,beta-alkynic hydrazones and tolerated the presence of aliphatic, aromatic, heteroaromatic, and ferrocenyl moieties with electron-withdrawing and electron-donating substituents.</dc:description>
  <dc:identifier>https://aperta.ulakbim.gov.trrecord/22263</dc:identifier>
  <dc:identifier>oai:zenodo.org:22263</dc:identifier>
  <dc:rights>info:eu-repo/semantics/openAccess</dc:rights>
  <dc:rights>http://www.opendefinition.org/licenses/cc-by</dc:rights>
  <dc:source>JOURNAL OF ORGANIC CHEMISTRY 76(16) 6726-6742</dc:source>
  <dc:title>Synthesis of Pyrazoles via Electrophilic Cyclization</dc:title>
  <dc:type>info:eu-repo/semantics/article</dc:type>
  <dc:type>publication-article</dc:type>
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