title: 1,2,4,3,5-benzotrithiadiazepine and its unexpected hydrolysis to unusual 7H,14H-dibenzo[d,i][1,2,6,7,3,8]tetrathiadiazecine.
abstract: Previously unknown 1,2,4,3,5-benzotrithiadiazepine 1 was prepared by 1:1 condensation of Ph-N=S=N-SiMe3 with S2Cl2 followed by intramolecular ortho-cyclization of [Ph-N=S=N-S-S-Cl] intermediate, and hydrolyzed in pyridine to unusual macrocyclic 7H,14H-dibenzo[d,i][1,2,6,7,3,8]tetrathiadiazecine 2.
authors.affiliation: Institute of Organic Chemistry, Russian Academy of Sciences, 630090 Novosibirsk, Russia.
authors.forename: A Y
authors.initials: AY
authors.lastname: Makarov
authors.forename: M M
authors.initials: MM
authors.lastname: Shakirov
authors.forename: K V
authors.initials: KV
authors.lastname: Shuvaev
authors.forename: I Y
authors.initials: IY
authors.lastname: Bagryanskaya
authors.forename: Y V
authors.initials: YV
authors.lastname: Gatilov
authors.forename: A V
authors.initials: AV
authors.lastname: Zibarev