Patent · US Active

2,3-dihydrobenzothiophene derivatives

US11174432B2 · kind B2 · utility

0Cited by

1References

12Claims

0Family size

Assignee

Merck Patent GmbH · DE

Inventors

Dmitry USHAKOV · Kohlenbissen, DE
Helga HAAS · Lampertheim, DE
Thorsten Vom Stein · Darmstadt, DE

Key dates

Filing date	Jun 25, 2018
Grant date	Nov 16, 2021
Priority date	—
Expiry date	Jul 12, 2038

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC07D409/04
WIPO fieldOrganic fine chemistry
WIPO sectorChemistry

Abstract

The present invention relates to 2,3-dihydrobenzothiophene derivatives of the general formula IIn which the occurring groups and parameters have the meanings indicated in claim 1, to the use thereof in liquid-crystalline or mesogenic media, to liquid-crystalline or mesogenic media comprising these derivatives, and to electro-optical display elements containing these liquid-crystalline or mesogenic media.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.