A number of BF2-chleate compounds were developed based on 4,6-dichloropyrimidine. The electron withdrawing ability of the -BF2 group markedly enhances the reactivity of the chlorides within chloropyrimidine. Consequently the BF2-chelate compounds can be modified in a variety of ways by nucleophilic substitutions. The compounds prepared in this work consist of 4,6-dichloropyrimidine and BF2-chelate moieties separated by methylene chains of tunable lengths. Such a versatile series of compounds may provide an opportunity to study the intramolecular energy transfer processes with respect to the donor-acceptor distances. Also it is suggested that the present BF2-chelate compounds will be useful for developing various types of energy/electron transfer systems and fluorescent materials.
以 4,6-二
氯嘧啶为基础,开发出了多种
BF2-
氯酸盐化合物。- 基团的退电子能力显著提高了
氯嘧啶中
氯化物的反应活性。因此, -螯合物可以通过亲核取代以多种方式进行修饰。本研究制备的化合物由 4,6-二
氯嘧啶和 -螯合物组成,中间有长度可调的亚甲基链分隔。这种多用途的化合物系列为研究分子内能量传递过程与供体-受体距离的关系提供了机会。此外,目前的 -螯合物还有助于开发各种类型的能量/电子转移系统和荧光材料。