Process for the preparation of 5- and/or 6-substituted-2-hydroxybenzoic acid esters

US6559336B2 · kind B2 · utility

Assignee

• BASF SE

Inventors

• Andreas Pfrengle · Bingen, DE
• Robert J. H. Scheffer · Ingelheim am Rhein, DE
• Stefan Scheiblich · Mainz, DE
• Jan Hendrik Wevers · Zörbig, DE
• Uwe Josef Vogelbacher · Ludwigshafen, DE
• Robert F. Doehner, Jr. · Plainsboro, US

Key dates

• Filing date: Oct 12, 2001
• Grant date: May 6, 2003
• Expiry date: Oct 12, 2021

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07C67/343
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

There is provided a single-step process for the preparation of a compound of formula I. Compounds of formula I are useful as starting materials in the synthesis of natural products and in the manufacture of benzophenone fungicidal agents.