Reaction of a pentane-2,4-dionate salt with dimethyldichlorosilane yields a bright yellow compound; X-ray structure analysis reveals it to be the novel substituted pyrylium species, 6-(2-hydroxy-prop-1-enyl)-2,4-dimethylpyrylium chloride (III).
N. Serpone and P. H. Bird, J. Chem. Soc., Chem. Commun., 1975, 284 DOI: 10.1039/C39750000284
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