Dithiatetrazocines and dithiadiazolium salts

Abstract

Benzamidine and sulphur dichloride give the dithiadiazolium salt (2) as well as dithiatetrazocine (1), though better syntheses for both are reported; the first heterocyclic (7) and unsymmetrical (10) derivatives of dithiatetrazocine are described, and one dimethylamino substituent, in (10), is shown to be sufficient to destroy the planarity of the dithiatetrazocine ring.