A new 4-unsubstituted monocyclic oxazolium-5-olate (I) was generated and characterized by NMR. Several 3-alkyl- and 3-aryl-4-acylated monocyclic munchnone and sydnone derivs. were also prepd. From NMR exptl. data and theor. calcns., different conformations were proposed for the 3-alkyl group in the munchnone and sydnone series. The 3-arylated mesoionic oxazolones had non-planar structures.
Preferred conformations of a 3-alkyl and 3-aryl-substituent in 4-unsubstituted and 4-acylated monocyclic munchones and sydnones / H., Petride; DALLA CORT, Antonella; C., Florea; M., Caproiu. - In: REVUE ROUMAINE DE CHIMIE. - ISSN 0035-3930. - ELETTRONICO. - 44:(1999), pp. 249-259.
Preferred conformations of a 3-alkyl and 3-aryl-substituent in 4-unsubstituted and 4-acylated monocyclic munchones and sydnones
DALLA CORT, Antonella;
1999
Abstract
A new 4-unsubstituted monocyclic oxazolium-5-olate (I) was generated and characterized by NMR. Several 3-alkyl- and 3-aryl-4-acylated monocyclic munchnone and sydnone derivs. were also prepd. From NMR exptl. data and theor. calcns., different conformations were proposed for the 3-alkyl group in the munchnone and sydnone series. The 3-arylated mesoionic oxazolones had non-planar structures.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
