PYRYLIUM-SALTS WITH LONG ALKYL SUBSTITUENTS .3. 2,4-DIUNDECYL-4-METHYLPYRYLIUM PERCHLORATE AND DERIVED PYRIDINIUM SALTS

The crystalline title pyrylium salt was obtained by SnCl4 catalysed ac ylation of 2-chloro-2-methylpropane with lauroyl chloride. Some interm ediates and by products of the acylation reaction are also described. This new pyrylium salt was converted with high yields into the corresp onding pyridine and N-substituted pyridinium salts (N-methyl, N-phenyl , N-(4-n-butylphenyl) and N-dodecyl). These derivatives were character ized by H-1-, C-13-NMR and GC-MS spectra.