Crystalline modification of the anhydrate of boscalid

US7501384B2 · kind B2 · utility

Assignee

• BASF SE

Inventors

• Winfried Mayer · Bubenheim, DE
• Hans Ziegler · Mutterstadt, DE
• Karl-Heinrich Schneider · Kleinkarlbach, DE
• Thomas Kröhl · Schriesheim, DE
• Horst Mayer · Ludwigshafen, DE
• Peter Erk · Bischofswerda, DE
• Gerhard Cox · Bad Dürkheim, DE
• Reinhard Stierl · Freinsheim, DE

Key dates

• Filing date: Jan 28, 2004
• Grant date: Mar 10, 2009
• Expiry date: Jun 4, 2025

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A01N43/40
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

Monoclinic 2-chloro-N-(4′-chlorobiphenyl-2-yl)nicotinamide melting at 147-148° C. and of the formula Iand a process for the preparation thereof.