HuagongsheHuagongshe Chemie-Druckbericht · Nur für Forschungszwecke
Sodium Hydroxide → 1,4-Dimethyl-2,5-bis(5,8,11-trioxadodecyloxy)benzene
Beteiligte Stoffe
| Rolle | Name | HCID | Einwaage |
|---|---|---|---|
| Edukt | Sodium Hydroxide | HCID 14798 | — |
| Edukt | 2,5-Dimethylhydroquinone | HCID 69211 | — |
| Edukt | 1-Bromo-5,8,11-trioxadodecane | HCID 23431562 | — |
| Katalysator | Tetrabutylammonium Bromide | HCID 74236 | — |
| Lösungsmittel | Chlorobenzene | HCID 7964 | — |
| Produkt | 1,4-Dimethyl-2,5-bis(5,8,11-trioxadodecyloxy)benzene | HCID 23431566 | — |
Reaktionsschritte
10 mmol of 2,5-dimethylhydroquinone in 25 mL of chlorobenzene, 20 mmol of 1-bromo-5,8,11-trioxadodecane, 20 mmol of sodium hydroxide in the form of a 50% aqueous solution are reacted in the presence of a phase transfer catalyst, tetrabutylammonium bromide. The 1,4-dimethyl-2,5-bis(5,8,11-trioxadodecyloxy)benzene thus obtained is purified by chromatography. 1,4-bis(Bromomethyl-2,5-bis(5,8,11-trioxadodecyloxy)benzene is obtained by treatment with two equivalents of N-bromosuccinimide. Duplicative elimination by potassium tert-butoxide in THF gives the polymer.
Herkunft & Nachweise
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patentnummer | US06699954B2 |
| Quelldatensatz | uspto-grants-2004_03 |
| ORD ID | ord-ef7675ec1b3e4ee7ba664939951ac352 |
| Quellennotiz | uspto-grants-2004_03 |