title: Thermal analysis of N-carbamoyl benzotriazole derivatives.
abstract: Thermal properties of N-carbamoyl benzotriazole derivatives and N,N',N''-tribenzyloxyisocyanuric acid were investigated using thermogravimetric analysis and differential scanning calorimetry. The results revealed a difference between structural analogs of N-carbamoyl benzotriazole derivatives. They seem to be in agreement with the previously proposed formation of N,N',N''-tribenzyloxyisocyanuric acid from 1-(N-benzyloxycarbamoyl) benzotriazole, via an intermediary N-benzyloxyisocyanate acid, during heating. Substantially different thermal properties were observed for structural analogues, 1-(N-methoxycarbamoyl) benzotriazole and 1-(N-ethoxycarbamoyl) benzotriazole. In contrast to N-benzyloxyisocyanate, no corresponding reactions were observed for their decomposition products, i.e., methoxyisocyanate and ethoxyisocyanate.
authors.forename: Ivan
authors.initials: I
authors.lastname: Kos
authors.forename: Tin
authors.initials: T
authors.lastname: Weitner
authors.forename: Sandra Flinčec
authors.initials: SF
authors.lastname: Grgac
authors.forename: Jasna
authors.initials: J
authors.lastname: Jablan
mesh_terms: D002152:Calorimetry, Differential Scanning / Q000379:methods*; D006358:Hot Temperature; D017953:Isocyanates / Q000737:chemistry*; D013818:Thermogravimetry / Q000379:methods*; D014230:Triazoles / Q000737:chemistry*
chemical_list: D017953:Isocyanates; D014230:Triazoles; C012771:benzotriazole