We have studied now the interaction of 2-chloro-, 2-bromo, 2-iodo-, 2, 6-dichloro-and 2, 6- dibromoanisole with phthalyl chloride in the presence of aluminum chloride. The first three compounds reacted at ordinary temperature to form methyl ethers of phthalides of the general structure I in which halogen occupies the X positions; upon demethylation the phthaleins themselves were obtained, substances which dissolve in aqueous sodium ...
