S. Guccione et al., ALKYLATION OF NON-ELECTRON RICH NITROGEN-HETEROCYCLES BY ALKYL ORTHOFORMATES - QUANTUM-CHEMISTRY CALCULATIONS, Journal of heterocyclic chemistry, 33(4), 1996, pp. 1413-1415
Results of semiempirical MO calculations of N-1- and N-2-alkyl pyrzolo
triazolopyrimidin-4-ones originating from alkylation by trimethyl and
triethyl orthoformate are presented.