On the tautomerism of 2,4-disubstituted 3,4,5,6-tetrahydrobenzo[h]quinazolines
摘要:
The tautomerism of the title compounds was investigated by H-1, C-13-NMR and UV spectroscopy. Compound 5 was compared with respect to its spectra with those of appropriate model compounds 1,3,4, and 6. This gave evidence that 5 predominates in the tautomeric form 5A.