HuagongsheHuagongshe Chemistry Print Report · For research reference only
Hydrochloric Acid → (E)-1-(4-Pyrimidyl)-2-styryl-1H-benzimidazole hydrochloride
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Hydrochloric Acid | HCID 313 | — |
| Reactant | 2-(2-Phenylethenyl)-1h-benzimidazole | HCID 242965 | — |
| Reactant | 4-Chloropyrimidine | HCID 642834 | — |
| Reactant | (E)-1-(2-pyridyl)-2-styryl-1H-benzimidazole | HCID 9796241 | — |
| Solvent | Methanol | HCID 887 | — |
| Product | (E)-1-(4-Pyrimidyl)-2-styryl-1H-benzimidazole hydrochloride | HCID 22736756 | — |
Reaction Steps
Free base of the titled compound was prepared from 2-styryl-1H-benzimidazole and 4-Chloropyrimidine according to the preparation of (E)-1-(2-pyridyl)-2-styryl-1H-benzimidazole (Example 1, method B). The free base was treated with a 10% methanol solution of hydrogen chloride and concentrated to dryness. The residue was recrystallized from ethyl acetate/n-hexane to give the titled compound. MW: 234.81; mp: 191.0-192.0° C.; 1H-NMR (CDCl3) δ: 9.42 (1H, br.s), 9.15 (1H, br.s), 8.26 (1H, d, J=16.5 Hz), 8.08-7.94 (1H, m), 7.82-7.71 (4H, m), 7.58-7.33 (6H, m).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US06713482B2 |
| Source dataset | uspto-grants-2004_03 |
| ORD ID | ord-a780c9cb4c14491ea5bda352f2a09817 |
| Source note | uspto-grants-2004_03 |