1.
Egyptian Journal of Chemistry. 1987; 30 (2): 179-88
in English
| IMEMR
| ID: emr-107306
2.
Egyptian Journal of Chemistry. 1987; 30 (2): 189-93
in English
| IMEMR
| ID: emr-107307
3.
Egyptian Journal of Chemistry. 1983; 26 (1): 13-8
in English
| IMEMR
| ID: emr-3016
ABSTRACT
Pyrylium cations [1-3; Z=O [+]] have been prepared by the interaction of diketones and fluorosulphonic acid or trifluoromethanesulphonic acid. The pyrylium cations have been converted into the corresponding pyridinium cations [1-14; Z = N [+]]