Methods for preparing partially fluorinated esters

US11999690B2 · kind B2 · utility

Assignee

• MEXICHEM FLUOR S.A. DE C.V. · MX

Inventors

• Andrew P. Sharratt · Grafton, GB
• John C. McCarthy · Compton, US

Key dates

• Filing date: Sep 20, 2019
• Grant date: Jun 4, 2024
• Expiry date: May 15, 2041

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02E60/10
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

A method for preparing a partially fluorinated ester comprising acyl and alkoxy groups wherein the acyl group comprises a branched or linear fluorine containing C3-C8 group with one of the structures: (Formulae (I), (II)) wherein X and Y are independently selected from: —H, —CH3, —F, —Cl, —CH2F, —CF3—OCF3, —OCH2CF3, OCH2CF2CHF2 and —CH2CF3 (wherein both X and Y cannot be H) comprising reacting an unsaturated halocarbon: (Formula (III)) wherein A and B are independently selected from the group comprising —H, —CH3, —F, —Cl, —CH2F, —CF3, —OCF3, —OCH2CF3, OCH2CF2CHF2 and —CH2CF3 (wherein both A and B cannot be H) with carbon monoxide and an alcohol, in the presence of a catalyst methods.