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Bis-4-chloro-phenyl sulphone prodn. - from chloro-benzene, bis-tri:methyl-silyl pyrosulphate and sulphur tri:oxide
Bis-4-chloro-phenyl sulphone prodn. - from chloro-benzene, bis-tri:methyl-silyl pyrosulphate and sulphur tri:oxide
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机译：双-4-氯苯基砜产品-来自氯苯，双-三：甲基-甲硅烷基焦硫酸盐和三：硫
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摘要
Prodn. of bis(4-chlorophenyl) sulphone (I) is effected by reacting chlorobenzene (II) with bis(trimethylsilyl) pyrosulphate (III) and SO3 at 20-100 deg.C. (III) is formed with situ from bis(trimethylsilyl) sulphate (IV) and SO3. The (III):SO3 molar ratio is 0.1-10:1, esp. 0.5-1.2:1. The (II):SO3 molar ratio is 0.1-20:1, esp. 0.9-2:1.
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