DIOL COMPOUND HAVING SPIROBIFLUORENE SKELETON AND METHOD FOR PRODUCING THE SAME

PROBLEM TO BE SOLVED: To provide a novel diol compound having a fluorene structure that can achieve higher refractive index and lower birefringence, has a low melting point and even when the temperature of the compound is elevated to a temperature higher than the melting point, does not largely decrease the weight and to provide a method for producing the diol compound.SOLUTION: The diol compound having a spirobifluorene skeleton represented by formula (1a) is produced by allowing two oxyalkylene groups to be bonded on the same plane of the fluorene skeleton selected from fluorene skeletons and is represented by formula (1a). The method for producing the diol compound is provided.SELECTED DRAWING: None 【課題】高屈折率化・低複屈折化が可能であり、かつ、その融点が低く、また、融点以上の温度としてもその重量が大幅に減少することがない可能なフルオレン構造を有する新規なジオール化合物およびその製造方法の提供。【解決手段】２つのオキシアルキレン基をフルオレン骨格上の内、同一のフルオレン骨格上に結合させた、式（１ａ）で代表されるスピロビフルオレン骨格を有するジオール化合物およびその製造方法。【選択図】なし