Decafluorobiphenyl → 4-(4-Benzyloxycarbonylphenoxy)nonafluorobiphenyl

Beteiligte Stoffe

Reaktionsbedingungen

Reaktionsschritte

37.6 g of decafluorobiphenyl (0.112 mol) are dissolved in 700 ml of dimethylformamide, and the solution is cooled to -10° C. by means of a cryostat, and a solution of 15 g of potassium 4-benzyloxycarbonylphenoxide (0.056 mol) in 300 ml of dimethylformamide is then added drop wise over the course of 2 hours. After 48 hours at -10° C., the potassium salt has reacted. The dimethylformamide is then removed in a rotary evaporator, and the residue is taken up in a little tetrahydrofuran and filtered via a silica-gel column. The clear solution obtained is evaporated in a rotary evaporator until the reaction product precipitates out. The reaction product is then stirred in n-hexane, filtered off via a fluted filter and then dried for 48 hours under nitrogen at 40° C./10 mbar in a vacuum drying cabinet.

Herkunft & Nachweise