HuagongsheHuagongshe Chemie-Druckbericht · Nur für Forschungszwecke
Oxalic Acid → (E)-1-(2-Pyridyl)-2-[2-(4-pyridyl)ethenyl]-1H-benzimidazole oxalate
Beteiligte Stoffe
| Rolle | Name | HCID | Einwaage |
|---|---|---|---|
| Edukt | Oxalic Acid | HCID 971 | — |
| Edukt | 4-Pyridinecarboxaldehyde | HCID 13389 | — |
| Edukt | 2-Methyl-1-(pyridin-2-yl)-1H-benzimidazole | HCID 22736643 | — |
| Edukt | (E)-1-(2-Pyridyl)-2-[2-(2-pyridyl)ethenyl]-1H-benzimidazole dihydrochloride | HCID 22736657 | — |
| Lösungsmittel | Methanol | HCID 887 | — |
| Produkt | (E)-1-(2-Pyridyl)-2-[2-(4-pyridyl)ethenyl]-1H-benzimidazole oxalate | HCID 22736688 | — |
Reaktionsschritte
Free base of the titled compound was prepared from 2-methyl-1-(2-pyridyl)-1H-benzimidazole and pyridine-4-carboxaldehyde according to the preparation of (E)-1-(2-pyridyl)-2-[2-(2-pyridyl)ethenyl]-1H-benzimidazole dihydrochloride (Example 44). The free base and oxalic acid were dissolved into MeOH. Concentration and recrystallization from ethyl MeOH/Et2O/n-hexane yielded the titled compound.
Herkunft & Nachweise
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patentnummer | US06310079B1 |
| Quelldatensatz | uspto-grants-2001_10 |
| ORD ID | ord-a99a7f94c89e4ff5a2e93daf4d425045 |
| Quellennotiz | uspto-grants-2001_10 |