Method for producing alkyl-indium compounds and the use thereof

US10745421B2 · kind B2 · utility

Assignee

• UMICORE AG & CO. KG · DE

Inventors

• Joerg Sundermeyer · Marburg, DE
• Annika Frey · Hanau, DE
• Wolf Schorn · Gießen, DE
• Ralf Karch · Kleinostheim, DE
• Andreas Rivas-Nass · Schriesheim, DE
• Eileen Woerner · Nidderau, DE
• Angelino Doppiu · Seligenstadt, DE

Key dates

• Filing date: Feb 27, 2019
• Grant date: Aug 18, 2020
• Expiry date: Feb 27, 2039

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07F5/00
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

The invention relates to a method for the cost-effective and environmentally friendly production of alkyl indium sesquichloride in high yield and with high selectivity and purity. The alkyl indium sesquichloride produced according to the invention is particularly suitable, also as a result of the high purity and yield, for the production, on demand, of indium-containing precursors in high yield and with high selectivity and purity. As a result of the high purity, the indium-containing precursors that can be produced are particularly suitable for metal organic chemical vapour deposition (MOCVD) or metal organic vapour phase epitaxy (MOVPE). The novel method according to the invention is characterised by the improved execution of the method, in particular a rapid process control. Owing to targeted and extensive use of raw materials that are cost-effective and have a low environmental impact, the method is also suitable for use on an industrial scale.