1908-35-6Relevant academic research and scientific papers
Application of the study of reactivity of alkaline salts of isocyanuric acid to the synthesis of mono and trisubstituted isocyanurates
Chiron-Charrier,Caubere
, p. 2659 - 2672 (1993)
Reactivity of alkaline salts of isocyanuric acid has been studied. It has been established that the nucleophilic substitution is not selective because of the protonic exchanges between salts and substituted derivatives. The synthesis of mono or trisubstituted derivative is due to secondary reactions and to solvent effects. With this study, it has been possible to settle a method to prepare mono and trisubstituted derivatives of isocyanuric acid.
Investigations providing a plausible mechanism in the hexamethyldisilazane- catalyzed trimerization of alkyl isocyanates
Roman, Mihaela,Andrioletti, Bruno,Lemaire, Marc,Bernard, Jean-Marie,Schwartz, Johannes,Barbeau, Philippe
scheme or table, p. 1506 - 1510 (2011/03/22)
Using HMDS as catalyst for the trimerization of isocyanates presents many advantages as the expected isocyanurate is not contaminated by the catalyst or other side-products resulting from its degradation. In addition, HMDS presents a low toxicity, and is compatible with industrial applications. This article describes the hexamethyldisilazane (HMDS)-catalyzed trimerization of octylisocyanate. Experimental investigations and mechanistic considerations indicate that the true catalyst of the trimerization is trimethylsilyloctylamine, which results from the preliminary condensation of HMDS with octylisocyanate.
