Kinetic Spectrophotometric Study of Effect of Triazolopyrazines on p-Benzoquinone Complexes

The effect of adding triazolopyrazines to a p-benzoqui-none-proline system and a p-benzoquinone-histamine system was studied by observing the kinetics of the spectral changes and analyzing the results using digital simulation methods. Below 35°, the major effect was that the triazolopyrazine competed with the electron donors for the acceptors to form complexes. Above 35°, there was predominantly a chemical interaction between the triazolopyrazine and the acceptors. A separate experiment showed that the triazolopyrazine interacted with p-benzoquinone to form a complex initially but that a chemical interaction took place later.