title: [Dibenzothiepin derivatives and related compounds. I. Isolation of 11-phenyl-6,11-dihydrodibenzo[b,e]theipin-11-ylium salts and their novel dehydrocyclization reaction (author's transl)].
mesh_terms: D003500:Cyclization; D003988:Dibenzothiepins / Q000302:isolation & purification*
chemical_list: D003988:Dibenzothiepins