W. Volkel et al., ADDITION-REACTIONS OF HERBICIDES AND AMIN O-CARRYING METABOLITES ON METHYLCATECHOL, A PRECURSOR OF HUMIC SUBSTANCES, Comptes rendus de l'Academie des sciences. Serie II. Mecanique, physique, chimie, astronomie, 320(2), 1995, pp. 103-108
The first step of the formation of pesticide-bound residues with soil
humic polymers is modelled by reacting -NH2 carrying herbicides and th
eir metabolites with methylcatechol under oxidative conditions. The ad
dition products, characterized by infrared absorption and H-1-MNR spec
troscopies, are N-substituted 4-amino-orthoquinones.