1 Ocak 2011 Dergi makalesi Açık Erişim

Zora, Metin; Kivrak, Arif; Yazici, Ceyda

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{
  "@context": "https://schema.org/", 
  "@id": 22263, 
  "@type": "ScholarlyArticle", 
  "creator": [
    {
      "@type": "Person", 
      "affiliation": "Middle E Tech Univ, Dept Chem, TR-06531 Ankara, Turkey", 
      "name": "Zora, Metin"
    }, 
    {
      "@type": "Person", 
      "affiliation": "Middle E Tech Univ, Dept Chem, TR-06531 Ankara, Turkey", 
      "name": "Kivrak, Arif"
    }, 
    {
      "@type": "Person", 
      "affiliation": "Middle E Tech Univ, Dept Chem, TR-06531 Ankara, Turkey", 
      "name": "Yazici, Ceyda"
    }
  ], 
  "datePublished": "2011-01-01", 
  "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.", 
  "headline": "Synthesis of Pyrazoles via Electrophilic Cyclization", 
  "identifier": 22263, 
  "image": "https://aperta.ulakbim.gov.tr/static/img/logo/aperta_logo_with_icon.svg", 
  "license": "http://www.opendefinition.org/licenses/cc-by", 
  "name": "Synthesis of Pyrazoles via Electrophilic Cyclization", 
  "url": "https://aperta.ulakbim.gov.tr/record/22263"
}