Azole hemiaminal derivatives and their use as nitrification inhibitors

US4925476A · kind A · utility

Assignee

• BASF SE

Inventors

• Klaus Wagner · Warthausen, DE
• Norbert Rieber · Mannheim, DE
• Ernst-Heinrich Pommer · Schifferstadt, DE
• Juergen Dressel · Schifferstadt, DE

Key dates

• Filing date: Feb 5, 1988
• Grant date: May 15, 1990
• Expiry date: Feb 5, 2008

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10S71/902
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

Nitrification inhibitors contain azole hemiaminal derivatives of the formula ##STR1## where R.sup.1 and R.sup.2 are each hydrogen, alkyl, aryl or halogen, R.sup.3 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 CR.sup.4, and R.sup.4 is hydrogen, alkyl, aryl or halogen.