| 摘要 |
Process for the purification of 5H-dibenz[b,f]a-zepine, which comprises evaporating 5H-dibenz[b, f]azepine under reduced pressure from a reaction mixture obtained by catalytic dehydrogenation of 10,11-dihydro-5H-dibenz-[b,f]azepine in the 1st step and depositing it as a solid, suspending the deposited product in an aromatic hydrocarbon in the 2nd step and then isolating pure 5H-dibenz[b,f]azepine.
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