Preparation of 1,1,4,4-tetramethoxy-2-butene

US6673971B2 · kind B2 · utility

Assignee

• BASF SE

Inventors

• Christoph Wegner · Schifferstadt, DE
• Joachim Paust · Schifferstadt, DE
• Hansgeorg Ernst · Speyer, DE

Key dates

• Filing date: Mar 19, 2002
• Grant date: Jan 6, 2004
• Expiry date: Mar 19, 2022

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07C41/50
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

A process for the preparation of 1,1,4,4-tetramethoxy-2-butene by reacting 2,5-dimethoxydihydrofuran with methanol in the presence of acids comprises carrying out the reaction in the presence of solid catalysts having acidic centers.