Pyrolysis of 5H-dibenzo[a,d]cyclohepten-5-one oxime (8) and 10,11-dihydro-5H-dibenzo-[a,d]cyclohepten-5-one oxime (9) in a flow system (at 1.33 mbar and 650°C) were examined comparatively with pyrolysis of benzophenone oxime (1a) using GC/MS. The pyrolysis products of 8 were: 1-cyanophenanthrene (19), 3H-[3,4-a,5]isoxazolodibenzo[b,f]cycloheptene (20), dibenzosuberenone (12), dibenzosuberenone imine...
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