Process for the rearrangement of 10,11-epoxy-10,11-...

Details Process for the rearrangement of 10,11-epoxy-10,11-... Process for the rearrangement of 10,11-epoxy-10,11-...

C - Chemistry, Metallurgy

07

D

260/241.15

C07D 491/04 (2006.01) C07D 223/22 (2006.01) C07F 3/02 (2006.01)

Patent

CA 1112241

Process for the rearrangement of 10,11-epoxy-10,11-dihydro- 5H-dibenz[b,f]azepine-5-carboxamide to 10-oxo-10,11- dihydro-5H-dibenz[b,f]azepine-5-carboxamide Abstract The invention relates to a process for the rearrange- ment of 10,11-epoxy-10,11-dihydro-5H-dibenz[b,f]azepine 5-carboxamide of the formula Image to 10-oxo-10,11-dihydro-5H-dibenz[b,f]azepine-5- carboxamide of the formula Image which process comprises performing the rearrangement by means of a bromide or iodide of lithium, magnesium or calcium in the dry form, or in the form of their known compounds with water (hydrates) or with organic substances, in a suitable solvent within a temperature range of 20 - 120°C, preferably of 40 - 80°C.

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