HuagongsheHuagongshe Chemistry Print Report · For research reference only
Hydrogen Bromide → 5,6-Dichloro-2-trifluoromethylbenzimidazole
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Hydrogen Bromide | HCID 260 | — |
| Reactant | HCID 54300085 | HCID 54300085 | — |
| Solvent | Methanol | HCID 887 | — |
| Product | 5,6-Dichloro-2-trifluoromethylbenzimidazole | HCID 16859 | — |
Reaction Steps
HBr was passed into a cooled (0° -5° C.) solution of 1.05 grams of 1-(methylcarbamoyloxy)-5,6-dichloro-2 -(trifluoromethyl) benzimidazole in 40 milliliters of methanol. The reaction mixture was permitted to stand for twenty minutes, then evaporated to obtain as a residue 5,6-dichloro-2-(trifluoromethyl) benzimidazole. After recrystallization from chloroform, it melted at 233° -5° C.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US04031107 |
| Source dataset | uspto-grants-1977_06 |
| ORD ID | ord-eeb65c7767474d69a2639dbd568ffe22 |
| Source note | uspto-grants-1977_06 |