6264-56-8Relevant articles and documents
Novel diesters of aminophosphonic acids containing furan and benzidine residue
Kraicheva
, p. 127 - 136 (1999)
4,4′-Bis[N-methyl(diethoxyphosphonyl)-1-(2-furyl)]benzidine and 4,4′-bis[N-methyl(diisopropoxyphosphonyl)-1-(2-furyl)]benzidine have been synthesized through addition of diethyl phosphite and diisopropyl phosphite, respectively, to the Schiff base N,N′-difurfurylidenebenzidine. The compounds have been characterized by elemental analysis, TLC and IR spectra. A comparable study of their 1H-NMR spectra and 1H-NMR spectra of 4,4′-bis[N-methyl(diethoxyphosphonyl)-1-phenyl]benzidine has been carried out. Some 1H-NMR data of 4,4′-bis[N-methyl(dimethoxyphosphonyl)-1-phenyl]diaminodiphenylmethane, 4,4′-bis[N-methyl(diethoxyphosphonyl)-1-phenyl]diaminodiphenylmethane and 4,4′-bis [N-methyl(diisopropoxyphosphonyl)-1-phenyl]diaminodiphenylmethane in DMSO-d6, solution are also presented.