Fungicidally active pyrano-pyrazole derivatives

US4515801A · kind A · utility

Assignee

• BAYER HEALTHCARE LLC · DE

Inventors

• Hartmut Stegelmeier · Hilden, DE
• Wilhelm Brandes · Leichlingen, DE

Key dates

• Filing date: Nov 8, 1983
• Grant date: May 7, 1985
• Expiry date: Nov 8, 2003

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07D495/14
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

Pyrano-pyrazole derivative of the formula ##STR1## in which R.sup.1 represents hydrogen, alkyl, alkanoyl, alkoxycarbonyl, optionally substituted phenyl or optionally substituted phenylalkyl, PA0 R.sup.2 and R.sup.3 can be identical or different and represent hydrogen, alkyl or optionally substituted phenyl, PA0 R.sup.4 represents cyano, alkyl, alkoxycarbonyl or optionally substituted phenyl, PA0 Y represents oxygen, sulphur or the methylene group, PA0 X represents halogen, alkyl, alkoxy, alkylthio, halogenoalkyl, dialkylamino, nitro or cyano and n represents a number from 0 to 3, which possess fungicidal activity.