Highly selective direct azidation of alcohols over a heterogeneous povidone-phosphotungstic solid acid catalyst
| Title | Highly selective direct azidation of alcohols over a heterogeneous povidone-phosphotungstic solid acid catalyst |
| Publication Type | Journal Article |
| Year of Publication | 2016 |
| Authors | Kamble, S, More, S, Rode, CV |
| Journal | New Journal of Chemistry |
| Volume | 40 |
| Issue | 12 |
| Pagination | 10240-10245 |
| Date Published | DEC |
| Abstract | A simple protocol for the selective azidation of alcohols is developed using a solid acid hybrid of a povidone and phosphotungstic acid (PVP-PWA) using azidotrimethylsilane as an azide source at room temperature. In a broad substrate scope, various activated as well as unactivated benzylic and diphenyl alcohols were treated smoothly with TMS-N-3 to selectively produce only azide products with excellent yields in a very short reaction time of 2 h. FT-IR confirmed the stability of the catalyst with retention of the Keggins structure after the reaction. Recycling experiments demonstrated the reusability of the PVP PWA (3:1) several times without losing its original activity. |
| DOI | 10.1039/c6nj02500e |
| Type of Journal (Indian or Foreign) | Foreign |
| Impact Factor (IF) | 3.277 |
Divison category:
Chemical Engineering & Process Development