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Method for dehydrochlorinating 1,1,1,-trichloro-2,2-bis(4- hydroxyphenyl) ethane and products obtained therefrom
Method for dehydrochlorinating 1,1,1,-trichloro-2,2-bis(4- hydroxyphenyl) ethane and products obtained therefrom
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机译:1,1,1,-三氯-2,2-双(4-羟苯基)乙烷的脱氯化氢方法及由此获得的产物
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摘要
A method is described for dehydrochlorinating 1,1,1-trichloro- 2,2- bis(4-hydroxyphenyl)ethane employing a refluxing dipolar aprotic solvent, such as dimethylformamide, containing a lithium halide catalyst to produce a crystalline product consisting essentially of 1,1-dichloro-2, 2- bis(4-hydroxyphenyl) ethylene. The crystalline product can be isolated in substantially pure form and converted to a high impact, flame retardant polycarbonate.
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