- Polymerizable chiral compd.
-
The invention provides a polymerizable chiral compound which has strong HTP and is excellent in solubility. The polymerizable chiral compound shown in a general form (I) has strong HTP and a low melting point. As the melting point is low, the polymerizable chiral compound has excellent solubility with other liquid crystal compounds and is useful to be a composition material of polymerizable liquid crystal composition. In addition, as the polymerizable chiral compound has a strong torque force, the polymerizable chiral compound can be used to manufacture optical anisotropy of excellent optical properties. The optical anisotropy can be used in deflection plates, phase difference plates, selective reflection plates, etc.
- -
-
-
- Process for the preparation of dianhydrohexitol bis(4-acryloyloxy)acylates
-
The invention relates to a process for the preparation of dianhydrohexitol bis(4-acryloyloxy)acylate of the general formula 2 in which, in a first step, dianhydrohexitol bisacylate of the general formula 3 is bisacylated using 3-halopropionyl halide, yielding the corresponding dianhydrohexitol bis[3-halopropionyloxy]arylate, and in which, in a further step, two hydrogen halide molecules are cleaved from the dianhydrohexitol bis[3-halopropionyloxy]arylate with the aid of a base.
- -
-
-