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HuagongsheHuagongshe Chemie-Druckbericht · Nur für Forschungszwecke
HRID 467241Erstellt: 23. Oktober 2026

4-Bromotoluene → Di-p-tolyl

https://huagongshe.com/de/reaction/467241

Reaktionsgleichung

Beteiligte Stoffe

RolleNameHCIDEinwaage
Edukt4-BromotolueneHCID 7805—
EduktSodium p-toluenesulfinateHCID 2723791—
EduktCalciumoxideHCID 6850728—
Katalysator1,2-Bis(diphenylphosphino)ethaneHCID 74267—
Katalysatorpalladium(II) acetateHCID 167845—
LösungsmittelN-methyl-2-pyrrolidoneHCID 13387—
ProduktDi-p-tolylHCID 1194186%

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

DOI10.6084/m9.figshare.5104873.v1
PatentnummerUS05159082
Quelldatensatzuspto-grants-1992_10
ORD IDord-8b9a71eb38ae4b48b2cee193bc62bafd
Quellennotizuspto-grants-1992_10