1 Ocak 2011 Dergi makalesi Açık Erişim

Zora, Metin; Kivrak, Arif; Yazici, Ceyda

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  <identifier identifierType="URL">https://aperta.ulakbim.gov.tr/record/22263</identifier>
  <creators>
    <creator>
      <creatorName>Zora, Metin</creatorName>
      <givenName>Metin</givenName>
      <familyName>Zora</familyName>
      <affiliation>Middle E Tech Univ, Dept Chem, TR-06531 Ankara, Turkey</affiliation>
    </creator>
    <creator>
      <creatorName>Kivrak, Arif</creatorName>
      <givenName>Arif</givenName>
      <familyName>Kivrak</familyName>
      <affiliation>Middle E Tech Univ, Dept Chem, TR-06531 Ankara, Turkey</affiliation>
    </creator>
    <creator>
      <creatorName>Yazici, Ceyda</creatorName>
      <givenName>Ceyda</givenName>
      <familyName>Yazici</familyName>
      <affiliation>Middle E Tech Univ, Dept Chem, TR-06531 Ankara, Turkey</affiliation>
    </creator>
  </creators>
  <titles>
    <title>Synthesis Of Pyrazoles Via Electrophilic Cyclization</title>
  </titles>
  <publisher>Aperta</publisher>
  <publicationYear>2011</publicationYear>
  <dates>
    <date dateType="Issued">2011-01-01</date>
  </dates>
  <resourceType resourceTypeGeneral="Text">Journal article</resourceType>
  <alternateIdentifiers>
    <alternateIdentifier alternateIdentifierType="url">https://aperta.ulakbim.gov.tr/record/22263</alternateIdentifier>
  </alternateIdentifiers>
  <relatedIdentifiers>
    <relatedIdentifier relatedIdentifierType="DOI" relationType="IsIdenticalTo">10.1021/jo201119e</relatedIdentifier>
  </relatedIdentifiers>
  <rightsList>
    <rights rightsURI="http://www.opendefinition.org/licenses/cc-by">Creative Commons Attribution</rights>
    <rights rightsURI="info:eu-repo/semantics/openAccess">Open Access</rights>
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  <descriptions>
    <description descriptionType="Abstract">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.</description>
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