4H-imidazo[1,2-a]imidazoles for electronic applications

US9806270B2 · kind B2 · utility

Assignee

• UDC IRELAND LIMITED · IE

Inventors

• Thomas Schäfer · Basel, CH
• Teresa Marina Figueira Duarte · Hong Kong, CN
• Christian Schildknecht · Schifferstadt, DE
• Nicolle Langer · Heppenheim, DE
• Ute Heinemeyer · Neustadt, DE
• Heinz Wolleb · Fehren, CH
• Soichi Watanabe · Mannheim, DE
• Christian Lennartz · Dublin, IE
• Gerhard Wagenblast · Wachenheim, DE
• Annemarie Wolleb · Fehren, CH
• Kristina Bardon · Waldshut-Tiengen, DE
• Flavio Luiz Benedito · Ludwigshafen, DE

Key dates

• Filing date: Mar 20, 2012
• Grant date: Oct 31, 2017
• Expiry date: Feb 16, 2035

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02P70/50
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

The present invention relates to compounds of formulaa process for their production and their use in electronic devices, especially electroluminescent devices. When used as host material for phosphorescent emitters in electroluminescent devices, the compounds of formula I may provide improved efficiency, stability, manufacturability, or spectral characteristics of electroluminescent devices.