Synthesis and Characterization of Boron Complexes of Imidazo[1,5-<i>a</i>]pyridylalkyl Alcohols
作者:Toshiaki Murai、Eri Nagaya、Keitaro Miyahara、Fumitoshi Shibahara、Toshifumi Maruyama
DOI:10.1246/cl.130274
日期:2013.8.5
Imidazo[1,5-a]pyridin-1-ylalkyl alcohols were reacted with diphenylborinic acid to give boron complexes in which nitrogen and oxygen atoms were coordinated to a boron atom. The use of imidazo[1,5-a]pyridin-1-ylalkyl alcohol with two 2-pyridyl groups also gave a boron complex, but the nitrogen atom in a 2-pyridyl group, rather than that in an imidazopyridyl group, was coordinated to the boron atom. The molecular structures of these complexes were revealed by X-ray analyses. The fluorescence spectra of the complexes were generally observed at wavelengths shorter than those for the starting materials and well-known boron complexes of 8-hydroxyquinolines.
咪唑并[1,5-a]吡啶-1-基烷基醇与二苯基硼酸反应生成硼络合物,其中的氮原子和氧原子与一个硼原子配位。使用带有两个 2-吡啶基的咪唑并[1,5-a]吡啶-1-基烷基醇也能得到硼络合物,但 2-吡啶基上的氮原子与硼原子配位,而不是咪唑吡啶基上的氮原子与硼原子配位。X 射线分析揭示了这些复合物的分子结构。这些络合物的荧光光谱波长通常比起始材料和著名的 8-羟基喹啉硼络合物的波长短。