Processes for preparing 3-(1-hydroxyphenyl-1-alkoximinomethyl) dioxazines

US6479675B1 · kind B1 · utility

Assignee

• BAYER HEALTHCARE LLC · DE

Inventors

• Herbert Gayer · Monheim, DE
• Bernd Gallenkamp · Wuppertal, DE
• Peter Gerdes · Aachen, DE
• Ulrich Heinemann · Leichlingen, DE
• Bernd-Wieland Kruger · Wittlich, DE
• Reinhard Lantzsch · Leverkusen, DE
• Thomas Seitz · Viernheim, DE
• Uwe Stelzer · Burscheid, DE

Key dates

• Filing date: Jul 19, 2000
• Grant date: Nov 12, 2002
• Expiry date: Jul 19, 2020

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07D407/12
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

The present invention relates to a plurality of novel processes and novel intermediates for preparing 3-(1-hydroxyphenyl-1-alkoximinomethyl)dioxazines, which are known as intermediates for preparing compounds having fungicidal properties (WO 95-04728).