Dergi makalesi Açık Erişim
Zora, Metin; Kivrak, Arif; Yazici, Ceyda
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"affiliation": "Middle E Tech Univ, Dept Chem, TR-06531 Ankara, Turkey",
"name": "Zora, Metin"
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"affiliation": "Middle E Tech Univ, Dept Chem, TR-06531 Ankara, Turkey",
"name": "Kivrak, Arif"
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"affiliation": "Middle E Tech Univ, Dept Chem, TR-06531 Ankara, Turkey",
"name": "Yazici, Ceyda"
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"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.",
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"title": "JOURNAL OF ORGANIC CHEMISTRY",
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"title": "Synthesis of Pyrazoles via Electrophilic Cyclization"
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