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Polymer/HIO4 : An efficient catalyst for solvent-free synthesis of 2-naphthol azo dyes | ||
Iranian Journal of Catalysis | ||
مقاله 7، دوره 4، شماره 4، اسفند 2014، صفحه 261-265 اصل مقاله (279.94 K) | ||
نوع مقاله: Articles | ||
نویسندگان | ||
Abdolhamid Bamoniri* 1؛ Alireza Pourali2؛ Seyed Mohamad Reza Nazifi2 | ||
1Departement of Organic Chemistry, Faculty of Chemistry, University of Kashan, Kashan, I.R. Iran. | ||
2School of Chemistry, Damghan University, Damghan, I.R. Iran. | ||
چکیده | ||
A convenient, one-pot method for the synthesis of diazonium salt has been developed by the sequential diazotization of aromatic amines with NaNO2, polymer- supported periodic acid (PPIA) and 2-naphthole under solvent-free conditions at room temperature. By using this method, several types of aromatic amine, containing electron-withdrawing and electron-donating groups, were rapidly converted to the corresponding azo dyes in good to excellent yields. The ensuing aryl diazonium salts supported on polymer (aryl diazonium polymer), ArN2 +IO4 - were sufficiently stable to be kept at room temperature in the dry state. The use of mild reaction conditions and an inexpensive procedure are further advantages of this method. | ||
کلیدواژهها | ||
Azo dye؛ Polymer-supported periodic acid؛ Diazotization؛ Solvent-free condition | ||
مراجع | ||
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