Sulfunic Acid Modifired MCM-41 Mesoporous Silica as an Efficient Nano-Catalyst for Synthesis of amides and lactams from Oximes Via Beckman Rearrangement
نویسندگان
چکیده مقاله:
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.
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عنوان ژورنال
دوره 27 شماره 3
صفحات 231- 236
تاریخ انتشار 2016-07-01
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