Patent Number: 8,304,036

Title: 2, 5-selenophene derivatives and 2, 5-tellurophene derivatives

Abstract: The invention relates to 2,5-selenophene derivatives and 2,5-tellurophene derivatives, inter alia for use as components in liquid-crystal mixtures, and to liquid-crystal mixtures which comprise the compounds, and to liquid-crystal displays based on these mixtures. The invention furthermore relates to processes for the preparation of the compounds and to Se/Te-containing intermediates.

Inventors: Jansen; Axel (Darmstadt, DE), Pauluth; Detlef (Ober-Ramstadt, DE), Klasen-Memmer; Melanie (Heuchelheim, DE)

Assignee: Merck Patent Gesellschaft Mit Beschrankter Haftung

International Classification: C09K 19/34 (20060101); C09K 19/32 (20060101); C09K 19/30 (20060101); C09K 19/12 (20060101); C07D 345/00 (20060101)

Expiration Date: 2021-11-06 0:00:00