2,4-diamino-6-trifluoromethylpyrimidine compounds useful as herbicides

US4877443A · kind A · utility

Assignee

• BAYER HEALTHCARE LLC · DE

Inventors

• Michael Schwamborn · Cologne, DE
• Erich Klauke
• Robert R. Schmidt · Cologne, DE
• Hans-Joachim Santel · Leverkusen, DE
• Robert H. Strang · Goldkronach, DE

Key dates

• Filing date: Jan 13, 1987
• Grant date: Oct 31, 1989
• Expiry date: Jan 13, 2007

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A01N43/54
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

Herbicidally active 2,4-diamino-6-haloalkylpyrimidines of the formula ##STR1## in which R.sup.1 and R.sup.3, independently of one another, represent hydrogen or alkyl, PA0 R.sup.2 and R.sup.4, independently of one another, represent hydrogen, alkyl which is optionally substituted by halogen, cyano, alkoxy, alkylthio or by cyclopropyl, represent cycloalkyl, alkenyl which is optionally substituted by halogen, or alkinyl, and PA0 R.sup.5 represents alkyl which is substituted by halogen, with the proviso that R.sup.1, R.sup.2, R.sup.3 and PA0 R.sup.4 do not simultaneously represent hydrogen when PA0 R.sup.5 represents trichloromethyl, and with the provisio that R.sup.1 and R.sup.2 do not simultaneously represent hydrogen when R.sup.4 represents alkyl which is substituted by alkoxy or alkylthio.