Synthesis of new a-aminophosphonates containing sterically hindered phenol fragments based on the reaction of 3,5-di(ferr-butyl)-4-oxo-2,5-cyclohexadienylidenemethylphosphonates with aliphatic amines

摘要

A reaction of aliphatic amines (n-butylamine, sec-butylamine, fert-butylamine, dodecyl-amine, 1,12-diaminododecane) with a-phosphorylated methylenequinones (dimethyl {[3,5-di-(tert-butyl)-4-oxo-2,5-cyclohexadienylidene]methyl}phosphonate and diphenyl {[3,5-di(tert-butyl)-4-oxo-2,5-cyclohexadienylidene]methyl}phosphonate)) to form 1,6-nucleophilic addition products was studied. This approach was used to obtain a-aminophosphonates containing sterically hindered phenol fragments in high yields.