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ChemicalBook CAS DataBase List 1-(3-CHLOROMETHYL-4-HYDROXY-PHENYL)-ETHANONE
24085-05-0

1-(3-CHLOROMETHYL-4-HYDROXY-PHENYL)-ETHANONE synthesis

2synthesis methods
Preparation by introduction of the chloromethyl group into 4-hydroxyacetophenone by treatment with formaldehyde and hydrochloric acid, in the presence of zinc chloride [Blanc (Chloromethylation) reaction],92%.
-

Yield:-

Reaction Conditions:

with hydrogenchloride;formaldehyd

Steps:

24 EXAMPLE 24
EXAMPLE 24 To a mixture of 260 cc. of 37% formaldehyde and 1800 cc. of concentrated hydrochloric acid is added 400 g. of p-hydroxyacetophenone at a temperature of about 45°C. The mixture is maintained at 50°C. for two hours, filtered, and washed with water to give 3-chloromethyl-4-hydroxyacetophenone, m.p. 154°C. dec.

References:

SmithKline Corporation US3933913, 1976, A

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