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3, 4-Dimethoxy, 3-benzyloxy-4-methoxy, 3, 4, 5-trimethoxy, 2-hydroxy-3, 4-dimethoxy, and 2-benzyloxy-3, 4-dimethoxy derivatives (3a-e) of phenacyl bromide have been prepared in 44-84% yields from the corresponding acetophenones by bromination with bromine in a mixture of ether and chloroform.
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Fujii et al. (1978) studied this question.
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