Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Benzimidazole | HCID 5798 | — |
| Reactant | Tetrafluoroboric acid | HCID 28118 | — |
| Solvent | Diethyl Ether | HCID 3283 | — |
| Solvent | Dichloromethane | HCID 6344 | — |
| Product | HCID 86589916 | HCID 86589916 | — |
Reaction Steps
To a solution of benzimidazole (10 g, 84.6 mmol) in dichloromethane (30 mL) is added dropwise tetrafluoroboric acid as its etherate (85%, HBF4 by volume, Aldrich Chemicals Co.) with stirring at 0° C. The reaction mixture is diluted with diethylether (100 mL) to precipitate the title compound. The title compound is filtered, washed with ether and recrystallized from ether.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|
| Patent number | US06274725B1 |
|---|
| Source dataset | uspto-grants-2001_08 |
|---|
| ORD ID | ord-3e93a1834e8f4cf584ec987d938fee3b |
|---|
| Source note | uspto-grants-2001_08 |
|---|
