반응 #54243

반응 방정식

1-bromo-1-phenyl-3,3-dimethyl-butan-2-one

4-chlorophenol

sodium

→

1-phenyl-1-(4'-chlorophenoxy)-3,3-dimethyl-butan-2-one

수율 67.0%

용매

ethyl acetate

ethanol

반응 조건

후처리

1. 1
   온도under reflux
2. 2
   기타the sodium bromide which had separated out
3. 3
   여과was filtered off hot
4. 4
   workup.DISTILLATIONThe filtrate was distilled in vacuo
5. 5
   기타the solid residue which remained was recrystallized from ligroin

실험 절차

A solution of 25.4 g (0.1 mole) of 1-bromo-1-phenyl-3,3-dimethyl-butan-2-one in 50 ml of ethyl acetate was added dropwise, at the boil, to a solution of 12.85 g (0.1 mole) of 4-chlorophenol and 2.3 g (0.1 mole) of sodium in 100 ml of ethanol. After boiling for 12 hours under reflux, the sodium bromide which had separated out was filtered off hot. The filtrate was distilled in vacuo and the solid residue which remained was recrystallized from ligroin. 20.2 g (67% of theory) of 1-phenyl-1-(4'-chlorophenoxy)-3,3-dimethyl-butan-2-one of melting point 103° C. were obtained.

출처