Analyse par resonance magnetique nucleaire 13C de la stabilite relative des spirochromenes et des merocyanines derivant du methoxy-3 nitro-5 salicylaldehyde

Article abstract of DOI:10.1139/v82-380

Heterocycloimmmonium salts generally react with 3-methoxy 5-nitro salicylaldehyde to give spirochromenes or merocyanines.Only the latter compounds are obtained in the thiazolinic and the benzimidazolinic series.The linking of a paraffinic ring to the mero