Fluorinated dibenzofuran and dibenzothiophene derivatives

US10017695B2 · kind B2 · utility

Assignee

• Merck Patent GmbH · DE

Inventors

• Lars Lietzau · Darmstadt, DE
• Constanze Brocke · Groß-Gerau, DE
• Volker Reiffenrath · Roßdorf, DE
• Atsutaka Manabe · Bensheim, DE

Key dates

• Filing date: Apr 11, 2016
• Grant date: Jul 10, 2018
• Expiry date: Apr 11, 2036

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C09K2019/3408
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

Disclosed are dibenzofuran and dibenzothiophene derivatives of the general formula I, in which X1, X2, W, Y, R, A, Z and m have the meaning defined in claim 1, to a process for the preparation thereof, to the use thereof as components in liquid-crystalline media, and to electro-optical display elements which contain the liquid-crystalline media according to the invention.