ClC1C=C(C(OO)=[O:9])C=CC=1.[F:12][C:13]1[CH:18]=[CH:17][C:16]([CH2:19][CH:20]=[CH2:21])=[CH:15][CH:14]=1.C(=O)([O-])[O-].[K+].[K+]>ClCCl>[F:12][C:13]1[CH:18]=[CH:17][C:16]([CH2:19][CH:20]2[CH2:21][O:9]2)=[CH:15][CH:14]=1To a stirred mixture of 86 parts of 3-chlorobenzeneperoxoic acid and 650 parts of dichloromethane are added dropwise (slowly) 53 parts of 1-fluoro-4-(2-propenyl)benzene. Upon completion, stirring is continued overnight at room temperature. Then there are added dropwise 92 parts of a potassium carbonate solution and the layers are separated. The organic phase is washed with a sodium bisulfite solution, dried, filtered and evaporated, yielding 58.4 parts (98%) of 2-(4-fluorophenylmethyl)oxirane as an oily residue.
Wird geladen…
