INVESTIGATION IN THE CHROMONE SERIES. PART XX. CHROMONE-3-PHOSPHONIC ACIDS AND ESTERS

Abstract In the Arbuzov and Perkow reactions of 2-bromo-2′-acyloxyacetophenone with trimethyl phosphite the derivatives in position 2 of 3-phosphonochromone acids and esters and 1–2′-acyloxyphenylvinylphosphates were obtained.