| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1269612 | Ultrasonics Sonochemistry | 2015 | 8 Pages |
•HBF4 incorporated spherical mesoporous silica nanoparticle catalyst synthesized.•Ultrasound assisted synthesis of pyrrolo[2,3,4-kl]acridones.•Immobilization of HBF4 on uniform spherical mesoporous silica nanoparticles not achieved before.•Ethanol used as a green solvent.
Fluoroboric acid (HBF4) adsorbed on mesoporous silica nanoparticles of 600 nm dimension was synthesized and characterized by N2 adsorption, HRTEM, EDX, XPS. The applicability of silica-HBF4 was probed through the sonication assisted synthesis of pyrroloacridinones in ecofriendly solvent ethanol. Standard leaching experiment was performed to show that the reaction was heterogeneous with this recyclable catalyst.
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