HuagongsheHuagongshe Chemie-Druckbericht · Nur für Forschungszwecke
Hydroquinone → 1-(2,5-Bis(2,2,2-trifluoroethoxy)phenyl)ethan-1-one
Beteiligte Stoffe
| Rolle | Name | HCID | Einwaage |
|---|---|---|---|
| Edukt | Hydroquinone | HCID 785 | — |
| Edukt | 1,4-Dibromobenzene | HCID 7804 | — |
| Edukt | 1,4-Bis(2,2,2-trifluoroethoxy)benzene | HCID 737156 | — |
| Produkt | 1-(2,5-Bis(2,2,2-trifluoroethoxy)phenyl)ethan-1-one | HCID 2736073 | — |
Reaktionsschritte
Compound [III] is prepared by a multi-stage process, comprising the conversion of 1,4dibromobenzene or hydroquinone to 1,4-bis(2,2,2-trifluoroethoxy)benzene, which is acetylated to form 2,5-bis(2,2,2-trifluoroethoxy)acetophenone. The acetophenone is then oxidized to form the corresponding benzoic acid derivative, which is then converted to its acid chloride and reacted either with 2-(aminomethyl)piperidine to form the Flecainide product in one step or with 2-(aminomethyl)pyridine, followed by catalytic hydrogenation of the pyridine ring, to form Flecainide in two steps.
Herkunft & Nachweise
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patentnummer | US06316627B1 |
| Quelldatensatz | uspto-grants-2001_11 |
| ORD ID | ord-2015b7c274634551875f9de46f28afd5 |
| Quellennotiz | uspto-grants-2001_11 |