| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 51184 | Catalysis Communications | 2009 | 5 Pages |
Abstract
TiO2-P25 and Ag/Pt doped TiO2 nanoparticles are efficient and highly chemo-selective photocatalysts for the reduction of aromatic azides to N-heterocyclics in O2-free alcoholic suspensions under solar and UV-A light. 2-Nitrophenyl azide with different alcohols on irradiation with TiO2 undergoes a combined redox reaction and condensation giving 2-alkylbenzimidazoles as the main product. In case of 2-nitrobenzyl azide, the reduced amine does not react with aldehyde but undergoes cyclization to form indazole. Doping of Ag/Pt enhanced the photoactivity of TiO2 significantly.
Related Topics
Physical Sciences and Engineering
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Catalysis
Authors
K. Selvam, B. Krishnakumar, R. Velmurugan, M. Swaminathan,