Intramolecular photodimerization of 2-naphthoates: successful application of hydrophobic forces in the preparation of large-ring compounds
作者:Chen-Ho Tung、Yi Li、Zhi-Qiang Yang
DOI:10.1039/ft9949000947
日期:——
observed, suggesting that hydrophobic interactions force polymethylene chains to self-coil. Photoirradiation of these solutions resulted in intramolecular dimerization of 2-naphthoate groups to give ring-closure products. The quantum yields for the photodimerization are significantly greater than those in organic solvents. This work provides an example of the application of hydrophobic interactions in expediting
研究了在水性有机二元混合溶剂中聚亚甲基双(2-萘甲酸酯)(N – M n – N)的荧光光谱和光二聚化。观察到强分子内准分子荧光,表明疏水相互作用迫使聚亚甲基链自成螺旋。这些溶液的光辐照导致2-萘甲酸酯基团的分子内二聚化以产生闭环产物。光二聚化的量子产率显着高于有机溶剂中的量子产率。这项工作提供了疏水相互作用在加速大环实体形成中的应用实例。