HuagongsheHuagongshe Chemie-Druckbericht · Nur für Forschungszwecke
4-Bromotoluene → Di-p-tolyl
Beteiligte Stoffe
| Rolle | Name | HCID | Einwaage |
|---|---|---|---|
| Edukt | 4-Bromotoluene | HCID 7805 | — |
| Edukt | Sodium p-toluenesulfinate | HCID 2723791 | — |
| Edukt | Calciumoxide | HCID 6850728 | — |
| Katalysator | 1,2-Bis(diphenylphosphino)ethane | HCID 74267 | — |
| Katalysator | palladium(II) acetate | HCID 167845 | — |
| Lösungsmittel | N-methyl-2-pyrrolidone | HCID 13387 | — |
| Produkt | Di-p-tolyl | HCID 11941 | 86% |
Reaktionsschritte
3.56 g (20 mmol) of sodium p-toluenesulfinate, 3.42 g (20 mmol) of p-bromotoluene, 0.0225 g (0.1 mmol) of palladium acetate, 0.0478 g (0.12 mmol) of 1,2-bis(diphenylphosphino)-ethane, 6.73 g (120 mmol) of calcium oxide and 60 ml of N-methyl-2-pyrrolidone were placed in a 100 ml round bottom flask and reacted at 150° C. in a nitrogen gas stream for 8 hours. After the completion of the reaction, the reaction mixture was analyzed by means of high performance liquid chromatography. The analysis showed that 17.1 mmol (yield: 86%) of 4,4'-dimethylbiphenyl was formed in the reaction mixture solution.
Herkunft & Nachweise
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patentnummer | US05159082 |
| Quelldatensatz | uspto-grants-1992_10 |
| ORD ID | ord-8b9a71eb38ae4b48b2cee193bc62bafd |
| Quellennotiz | uspto-grants-1992_10 |