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Sulfunic Acid Modifired MCM-41 Mesoporous Silica as an Efficient Nano-Catalyst for Synthesis of amides and lactams from Oximes Via Beckman Rearrangement | ||
Journal of Sciences, Islamic Republic of Iran | ||
مقاله 4، دوره 27، شماره 3، مهر 2016، صفحه 231-236 اصل مقاله (683.77 K) | ||
نوع مقاله: Final File | ||
نویسندگان | ||
S. Eskandari* 1؛ E. Tarizade2؛ F. Teymouri1 | ||
11Department of Chemistry, Engineering College, Saveh Branch, Islamic Azad University, Saveh, Islamic Republic of Iran | ||
22Department of Organic Chemistry, Faculty of Basic Sciences, South Tehran Branch, Islamic Azad University, Tehran, Islamic Republic of Iran | ||
چکیده | ||
Mesoporous MCM-41 silicas anchored with sulfonic acid (–SO3H) groups (denoted MSN-SA) via postsynthesis modification are very effective for the Beckman rearrangement. A simple and convenient procedure for conversion of a variety oximes to their corresponding amides and lactams has been developed. The reaction was carried out in the presence of MSN-SA as the catalyst. The best results for conversion of oximes to amides and lactams were obtained in the presence of MSN-SA and solvent free condition at 110 ºC. Excellent yields were obtained from oximes with electron-donating and electron-withdrawing groups. The system also worked well with polynuclear aromatic, heterocyclic and aliphatic oximes. | ||
کلیدواژهها | ||
Oxime, MCM-4؛ Sulfonic acid؛ Beckman rearrangement | ||
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