AZOLE HEMIAMINAL DERIVATIVES AND THEIR USE AS NITRIFICATION INHIBITORS

摘要

Nitrification inhibitors contain azole hemiaminal derivatives of the formula where R1 and R2 are each hydrogen, alkyl, aryl or halogen, R3 is alkyl, cycloalkyl, alkoxy, alkenyl, alkynyl, styryl, aryl, hetaryl or aralkyl, where the aromatic radical may be substituted, or is hydroxyl, A and B are each N or CR4, and R4 is hydrogen, alkyl, aryl or halogen.