| تعداد نشریات | 126 |
| تعداد شمارهها | 7,095 |
| تعداد مقالات | 76,246 |
| تعداد مشاهده مقاله | 151,729,337 |
| تعداد دریافت فایل اصل مقاله | 113,819,969 |
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 | ||
|
آمار تعداد مشاهده مقاله: 1,171 تعداد دریافت فایل اصل مقاله: 1,402 |
||