“…On the basis of these intermediates and the related literatures [16,18,20,21,[45][46][47], we proposed that alachlor degradation mechanism involved alkylic oxidation, cleavage of C-N, C-Cl, C-O, and/or C-C bonds, cyclization, and dealkylation ( Figure 4). First, compound A c c e p t e d m a n u s c r i p t 11 2 was generated by dealkylation of alachlor upon the attack by •OH and then further oxidized to compounds 6 and 5 by scission of the R-N bond and hydroxylation, as it has been previously observed in photo-Fenton oxidation [16].…”