Heterocyclyl-1,3,4-thiadiazolyloxyacetamides and their use as herbicides

US5780392A · kind A · utility

Assignee

• BAYER HEALTHCARE LLC · DE

Inventors

• Heinz Forster · Wuppertal, DE
• Hans-Joachim Diehr · Wuppertal, DE
• Hans-Joachim Santel · Leverkusen, DE
• Markus Dollinger · Leverkusen, DE

Key dates

• Filing date: Oct 4, 1996
• Grant date: Jul 14, 1998
• Expiry date: Oct 4, 2016

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07D417/14
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

This invention concerns heterocyclyl-1,3,4-thiadiazolyloxycetamides of the formula ##STR1## in which R.sup.1 is hydrogen or optionally substituted alkyl, alkenyl, alkinyl or aralkyl, R.sup.2 is optionally substituted alkyl, alkenyl, alkinyl, cycloalkyl, cycloalkenyl, aralkyl, aryl, alkoxy, alkenyloxy or alkinyloxy or R.sup.1 and R.sup.2, together with the nitrogen atom to which they are bound, form an optionally substituted, saturated or unsaturated nitrogen heterocycle which may contain other hetero-atoms and to which a benzo-grouping can be fused, and Het is an optionally substituted heterocyclyl group with the exception of thienyl. The Invention also concerns a method of preparing such compounds, intermediates used in their preparation and the use of such compounds as herbicides.