HETEROCYCLIC ANALOGS OF PLEIADIENE 76.* SYNTHESIS AND TAUTOMERIC CONVERSIONS OF MONO- AND DISUBSTITUTED PERIMIDINES WITH ELECTRON-WITHDRAWING SUBSTITUENTS IN THE NAPHTHALENE FRAGMENT

摘要

A series of new mono- and disubstituted perimidines with electron-withdrawing substituents in the naphthalene fragment has been synthesized. Their prototropic annular tautomerism has been investigated by ~1HNMR spectroscopy.