2.6-Dialkyl-phenols exhibit little steric hindrance on reaction with phosphoryl chloride unless the alkyl substituent is bulky (i.e. t-butyl). Where bulky substituents are present reaction with phosphoryl chloride occurs only in the presence of Friedel-Crafts type catalysts after either a dealkylation or a rearrangement of the ortho-placed alkyl groups, followed by U-phosphorylation, has occurred. DIALKYLANILINES react with phosphoryl chloride and phosphorus trichloride by C-phosphorylation a t the @ava-position both in the presence specific Friedel-Crafts type catalysts to give mixtures of products containing from One to three phosphorust Present address:
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.