| 摘要 |
The invention provides a process for the preparation of an alkyl 4-halophenyl ether of formula (I), wherein R is C1-4 straight or branched chain alkyl and X is bromo or chloro, which comprises the step of alkylation of phenol by reaction with an alkyl halide of formula R-X (II) in the presence of a base, followed by the step of halogenation of the intermediate alkyl phenyl ether obtained thereby, characterised in that the halogenating agent is elemental halogen derived by oxidation of the anionic halide by-product of the alkylation step. The invention also provides products of formula (I) whenever prepared by the process. |
