Bromine → Diethyl 4-Bromo-2-methylbenzylphosphonate
Reaktionsgleichung
[CH3:1][C:2]1[CH:16]=[CH:15][CH:14]=[CH:13][C:3]=1[CH2:4][P:5](=[O:12])([O:9][CH2:10][CH3:11])[O:6][CH2:7][CH3:8].[Br:17]Br>P(OC)(OC)(OC)=O.O>[CH3:1][C:2]1[CH:16]=[C:15]([Br:17])[CH:14]=[CH:13][C:3]=1[CH2:4][P:5](=[O:12])([O:9][CH2:10][CH3:11])[O:6][CH2:7][CH3:8]Komponenten
5
Edukt 2
Produkt 1
Reagenzien, Katalysatoren, Lösungsmittel 2
Versuchsvorschrift
10 g (42 mmol) of diethyl 2-methylbenzylphosphonate were dissolved in 60 ml of trimethyl phosphate and the solution was introduced into a flask protected from light and moisture. 16 g (0.05 mol) of Br2 were added dropwise, while stirring. The mixture was stirred at 90° C. for 15 hours and, after cooling, was diluted with 100 ml of water and extracted three times with 100 ml of n-hexane each time. The organic phase wa dried, concentrated and distilled.