| abstract |
N - (p - Hydroxy phenyl) amino, 4 - methyl phenyl-methane phosphonic acid; N-(hydroxy phenyl) amino, 4-methoxy phenyl-methane phosphonic acid, N - (3 - methyl - 4 - hydroxy phenyl) amino, methyl, phenylmethane phosphonic acid and N-(p-diethylaminophenyl) amino-methane phosphonic acid are prepared by reacting an appropriately substituted amino phenol or phenylene diamine with an appropriately substituted hydroxy methane phosphonic acid. |