| 摘要 |
A two step bromination process for manufacturing a polybrominated indane product such as octabromophenyl indane comprises the steps of: (a) forming an intermediate by reacting an indane compound with bromine, under reaction conditions so as to dissolve and partially ar-brominate the indane compound to contain an average of at least two ar-bromine atoms per molecule, and (b) catalytically ar-brominating the intermediate to obtain a polybrominated indane product, the catalytic ar-bromination occurring in the presence of an aluminum or iron containing bromination catalyst or other bromination catalyst having a catalytic activity substantially equivalent thereto and in a mole ratio of bromine to said intermediate of at least 5.
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