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Process for the manufacture of dihalodiphenylsulfones starting from organic acids
Process for the manufacture of dihalodiphenylsulfones starting from organic acids
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机译:从有机酸开始生产二卤代二苯砜的方法
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摘要
A process for the preparation of dihalodiphenylsulfones_such as 4,4′-dichlorodiphenyl sulfone or 4,4′-bis-(4-chlorophenylsulfonyl)biphenyl with high regioselectivity, at low temperature and in the absence of toxic reagents by reacting together at least one acid, sulfur trioxide and at least one halobenzene. The invented process is particularly suited for the manufacture of 4,4′-dichlorodiphenyl sulfone.
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