V. Kiselev, E. Kashaeva, G. G. Iskhakova
Oct 8, 1999
Citations
0
Influential Citations
10
Citations
Journal
Tetrahedron
Abstract
Abstract Pressure and temperature effects on the reaction rate of dimethyl 1,2,4,5-tetrazine-3,6-dicarboxylate with 1-hexene were investigated. The activation volume (−26.7 cm3 mol−1, 298.1 K) is in agreement with the conservation of all four nitrogen atoms in transition state. Densitometry, 1H NMR and calorimetric studies of the reaction indicate nitrogen molecule loss by the intermediate just after its formation. Partial molar volumes in acetone of diene (127.2), 1-hexene (127.6) and the resulting adduct (206.9 cm3 mol−1) were determined.