Beta-phenoxyethyl alky (aryl)Ketones, rearrangement and conversion into benzopyrylium salts 

 -  Tetrahedron, 28(16), p.4449-4453, 1972 .
<br/><br/> The rearrangement of some -phenoxyethyl alkyl(aryl)ketones to 4-hydroxyphenoxyethyl alkyl(aryl)ketones has been studied. The latter undergo rearrangement under oxidative conditions to flavilium salts such as 0-trimethylapigeninidin chloride or 0-tetramethylluteolinidui chloride. The mechanism of these changes has been discussed.