HuagongsheHuagongshe Chemie-Druckbericht · Nur für Forschungszwecke
Hydroquinone → Bis(hydroxypropyl) fumarate
Beteiligte Stoffe
| Rolle | Name | HCID | Einwaage |
|---|---|---|---|
| Edukt | Hydroquinone | HCID 785 | — |
| Edukt | Propylene Glycol | HCID 1030 | — |
| Edukt | Diethyl fumarate | HCID 638144 | — |
| Katalysator | Zincchloride | HCID 3007855 | — |
| Lösungsmittel | Ethanol | HCID 702 | — |
| Produkt | Bis(hydroxypropyl) fumarate | HCID 86587300 | — |
Reaktionsschritte
Poly(propylene fumarate) was synthesized following a two step procedure [11]. First, 1 mole of diethyl fumarate (Acros Organics, Pittsburgh, Pa.) and 3 moles of 1,2 propanediol (Acros Organics) were reacted using 0.01 moles ZnCl2 (Fisher Chemicals, Fair Lawn, N.J.) as a catalyst and 0.002 moles hydroquinone (Acros Organics) as a radical inhibitor. The reaction was run under a nitrogen blanket, producing bis(hydroxypropyl) fumarate as the main product and ethanol as a byproduct. Second, the bis(hydroxypropyl) fumarate was transesterified, producing poly(propylene fumarate) and 1,2 propanediol as a byproduct.
Herkunft & Nachweise
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patentnummer | US06753358B2 |
| Quelldatensatz | uspto-grants-2004_06 |
| ORD ID | ord-ff7b432d5b0e4004ab6d24459485836b |
| Quellennotiz | uspto-grants-2004_06 |