A process for preparing compounds of the formula
wherein R, Y and A are organic residues and i is 0, 1, 2 or 3, which process comprises reacting a ketone compound of the formula
wherein
and Ar is an organic residue, with an organometallic reagent; and subsequently dehydrating, oxidising and reacting to remove the group Ar and further reacting to obtain the desired products. The resulting silacyclohexane-based compound are useful in liquid crystal displays.
一种制备式化合物的工艺
其中 R、Y 和 A 为有机残留物,i 为 0、1、2 或 3,该工艺包括使式中的酮化合物发生反应
其中
和 Ar 是有机残留物,与有机
金属试剂反应;然后脱
水、氧化和反应以除去基团 Ar,再进一步反应得到所需的产物。得到的
硅环己烷基化合物可用于液晶显示器。