<abstract xmlns="http://www.w3.org/1999/xhtml"><p>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.</p></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.

Thermal analysis of N-carbamoyl benzotriazole derivatives

Department of Analytical Chemistry, University of Zagreb

Department of General and Inorganic Chemistry, University of Zagreb Faculty of Pharmacy and Biochemistry 10000 Zagreb, Croatia

Department of Textile Chemistry and Ecology, University of Zagreb Faculty of Textile Technology 10000 Zagreb, Croatia

Acta Pharmaceutica

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

{"article-title":"Thermal analysis of N-carbamoyl benzotriazole derivatives"}

Thermal properties of N-carbamoyl benzotriazole derivatives and N,N’,N’’-tribenzyloxyisocyanuric acid were investigated using thermogravimetric analysis and...

Thermal analysis of N-carbamoyl benzotriazole derivatives

Pubblicato online: 23 mag 2015

Pagine: 207 - 213

Accettato: 18 gen 2015

DOI: https://doi.org/10.1515/acph-2015-0017

© by Jasna Jablan

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.