Herbicidal hydantoins

US4944791A · kind A · utility

Assignee

• Shell Internationale Research Maatschappij B.V. · NL

Inventors

• Ludwig Schroder · Ingelheim am Rhein, DE
• Werner Stransky · Gau-Algesheim, DE
• Rudolf Mengel · Ingelheim am Rhein, DE
• Erich Raddatz · Kaiserslautern, DE
• Sigmund Lust · Darmstadt, DE
• Gerbert Linden · Ingelheim am Rhein, DE
• Gerhart Schneider · Königstein, DE

Key dates

• Filing date: Dec 14, 1988
• Grant date: Jul 31, 1990
• Expiry date: Dec 14, 2008

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07C2601/14
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

Novel cycloalkane-5.dbd.-spiro-hydantoins of formula ##STR1## wherein A is selected from the group consisting of ##STR2## and the remaining substituents are defined below having strong, selective herbicidal activity and novel intermediates and a process for their preparation.