SEARCH Articles Figures Tables 1- Benzopyrylium from phenols 1- Benzopyrylium ring synthesis 2- Benzopyrylium-4-olates 2- Benzopyryliums 2- Benzopyryliums ring synthesis 2-Benzopyrylium salts formation 2-Benzopyrylium salts, cycloaddition 2-Benzopyrylium-4-olates cycloaddition 2-Phenyl-l-benzopyrylium 2-benzopyrylium-4-olate 3.4- Benzopyrylium salts, synthesis 5.7- Dihydroxy-2- benzopyrylium chloride Alkyl-Benzopyryliums Benzopyrylium Benzopyrylium Benzopyrylium cations Benzopyrylium derivatives Benzopyrylium ions Benzopyrylium oxide Benzopyrylium perchlorates Benzopyrylium salts Benzopyrylium salts 4-hydroxy— from Benzopyrylium salts Flavylium Benzopyrylium salts, 4-alkoxy Benzopyrylium salts, amination Benzopyrylium synthesis Benzopyrylium triflates Benzopyryliums, Benzopyrones Reactions and Synthesis Benzopyryliums, reaction with ammonia Chromones benzopyrylium salts Notable Examples of Benzopyrylium and Benzopyrone Syntheses Phenyl benzopyrylium Pyrylium ring benzopyrylium salts Reactions of Benzopyryliums Ring Synthesis of 1-Benzopyryliums Synthesis of Benzopyryliums, Chromones, Coumarins and Isocoumarins