Triazolopyrimidine herbicides

US5071468A · kind A · utility

Assignee

• Shell Internationale Research Maatschappij B.V. · NL

Inventors

• David P. Astles · Rainham, GB
• John E. Spencer · Liverpool, GB
• Andrew Flood · Allen, GB

Key dates

• Filing date: Dec 5, 1989
• Grant date: Dec 10, 1991
• Expiry date: Dec 5, 2009

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A01N43/90
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

Compounds of the formula: ##STR1## wherein X, Y and Z are hydrogen, halogen, alkyl, haloalkyl, hydroxy, alkoxyalkyl, alkoxy, haloalkoxy, cycloalkyl, substituted aryl, alkylthio, arylthio, substituted amino or --CO.sub.2 R.sup.7, wherein R.sup.7 is hydrogen, optionally substituted alkyl, cycloalkyl, aryl or aralkyl, or X and Y together or Y and Z together form a ring R.sup.1 is --A--CH.dbd.CHCH.sub.3, --A--C.tbd.CCH.sub.3, --A--CH.sub.2 CH.dbd.CH.sub.2, --A--CH.sub.2 C.tbd.CH, --A(CH.sub.2).sub.n Br, --A(CH.sub.2).sub.n B(CH.sub.2).sub.m BR, ##STR2## or --A(CH.sub.2).sub.n R.sup.8, optionally substituted wherein A and B are --O--, --S-- or --NR, B.sup.1 is a direct bond, --O--, --S-- or --NR, n and m are integers from 1 to 3, p is 0, 1 or 2, R is hydrogen, optionally substituted alkyl, cycloalkyl, aryl or aralkyl and R.sup.8 is optionally substituted aryl; PA0 R.sup.2 to R.sup.4, each are hydrogen, halogen, alkyl, alkoxy or --CO.sub.2 R.sup.7 ; PA0 R.sup.5 is hydrogen, halogen, alkyl, haloalkyl, optionally substituted cycloalkyl or aryl, nitro, cyano, hydroxy, optionally substituted alkoxy, aryloxy, heteroaryloxy, amino, alkylthio, alkylsulphinyl, alkylsulfphonyl, arylthio, arylsulp…