ChemInform Abstract: Preparation of 2‐Substituted 1,3,4‐Thiadiazoles (III) and Mesoionic 1,3,4‐Thiadiazole(3,2‐c)quinazolines (VII) from 4H‐3,1‐Benzothiazine‐4‐thiones (I) or 3‐Amino‐4(3H)‐quinazolinethiones (V). | Publicación