Method for the phosgenation of compounds comprising hydroxyl, thiol, amino and/or formamide groups

US10118145B2 · kind B2 · utility

Assignee

• BAYER HEALTHCARE LLC · DE

Inventors

• Jens Stefan Roggan · Cologne, DE
• Leslaw Mleczko · Bochum, DE
• Konstantinos METAXAS · Cologne, DE
• Michael Gottfried · Wuppertal, DE
• Ilja Peckermann
• Stephan Schubert · Leverkusen, DE
• Ekkehard Barth

Key dates

• Filing date: Aug 18, 2015
• Grant date: Nov 6, 2018
• Expiry date: Aug 18, 2035

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B01J2219/00085
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

A method of reacting phosgene with a second compound containing one or more of hydroxyl, thil, amino and/or formamide groups, wherein phosgene has a GHS hazard identification of GHS06 and is obtainable from the reaction of carbon monoxide and chlorine and wherein the second compound is capable of a chemical reaction with phosgene is provided.