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烷基酮在水中用锌粉和溴在原位生成溴化锌催化,按溴的摩尔比和反应温度,生成相应的α-溴代物或α,α-二溴代物,22例收率74%～97%。以二氧六环-二溴代物为溴化剂在水
Alkyl ketone in water with zinc powder and bromine generated in situ zinc bromide catalysis bromine molar ratio and the reaction temperature to generate the corresponding α-bromo or α, α-dibromo, 22 cases of yield 74% ~ 97%. With dioxane - dibromo-brominating agent in water