Methoxycarbonylation with formic acid as CO source

US10407375B2 · kind B2 · utility

Assignee

• EVONIK DEGUSSA GMBH · DE

Inventors

• Rui Sang · Liaocheng, CN
• Jie Liu · Zhuzhou, CN
• Kaiwu Dong · Shangchuan, CN
• Ralf Jackstell · Rostock, DE
• Matthias Beller · Ostseebad Nienhagen, DE
• Robert Franke · Marl, DE

Key dates

• Filing date: Jul 24, 2018
• Grant date: Sep 10, 2019
• Expiry date: Jul 24, 2038

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B01J2531/824
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

A catalytic process for the methoxycarbonylation of olefins where formic acid is the CO source. The process includes the steps of forming a reaction mixture where methanol and formic acid are added at a volume ratio in the range from 1.55:0.45 to 1.1:09. The methanol-formic acid ratio enhances both the rate of conversion and methyl ester yield ether produced. The catalysts used is a palladium/benzene-base diphosphine ligand complex.