Nano magnetic double-charged diazoniabicyclo[2.2.2]octane dichloride silica hybrid: Synthesis, characterization, and application as an efficient and reusable organic-inorganic hybrid silica with ionic liquid framework for one-pot synthesis of pyran annula

- Reusable nanomagnetic catalyst.
- One-pot synthesis of pyran annulated heterocyclic compounds.
- Bridged double-charged diazoniabicyclo[2.2.2] octane dichloride.
- Hybrid xerogel materials.
- One-pot multicomponent coupling reaction in water.