Design and Synthesis of New Liquid Crystal Materials with Fluoro-Substituted Fused Ring Structure for Active Matrix LCD (2)

Abstract

Novel 5-fluoro- or 5,7-difluorotetrahydronaphthalene derivatives for active matrix LCD were designed and synthesized through the regioselective hydrogenation of 1-fluoronaphthalenes or the Grignard reaction of 5,7-difluorotetrahydronaphthalen-2-One. These compounds exhibited very large dielectric anisotropy and extremely good co-solubility to host LC.