| abstract |
The present invention relates to a process for the preparation of ring compounds via a combinatorial synthesis based on a Suzuki coupling, subsequent halo-demetallation and finally a Suzuki coupling. The Suzuki couplings are each carried out with a boronic acid or a boronic acid ester. The present invention likewise relates to the corresponding ring compounds and to the novel synthesis units used for this purpose. The ring compounds according to the invention are preferably used as constituents in liquid-crystalline mixtures. |