TAUTOMERISM OF DIHYDRO-1,2,4-TRIAZOLOPYRIMIDINES CONTAINING 2-HYDROXY- AND 4-DIMETHYLAMINOARYL SUBSTITUENTS

Article abstract of DOI:10.1007/BF00476757

We have studied the effect of structural factors and the nature of the solvent on the tautomeric composition of aromatic substituted dihydro-1,2,4-triazolo<1,5-a>pyrimidines.The kinetics of the tautomeric exchange of 5-(2-hydroxyphenyl)-7-phenyldihydro-1,2,4-triazolo<1,5-a>pyrimidines has also been investigated.