Synthesis of organoboron compounds bearing an azo group and substituent effects on their structures and photoisomerization
作者:Junro Yoshino、Naokazu Kano、Takayuki Kawashima
DOI:10.1016/j.tet.2008.05.128
日期:2008.8
2-(Phenylazo)phenylboranes bearing several substituents were synthesized and substituenteffects on their structures and photoisomerization behaviors were investigated to reveal the scope of the photoswitching of the coordination number of the boron by using an azobenzene-based photoresponsive ligand, 2-(phenylazo)phenyl group. 11B NMR, X-ray crystallographic analysis, and UV–vis spectra revealed that
合成了带有多个取代基的2-(苯基偶氮)苯基硼烷,研究了取代基对其结构和光异构化行为的影响,以揭示基于偶氮苯的光敏配体2-(苯基偶氮)对硼配位数的光开关作用范围。苯基。11 B NMR,X射线晶体学分析和UV-vis光谱显示,硼原子和偶氮苯部分上的取代基的供电子能力决定了硼与偶氮基团氮之间的相互作用强度。2-(苯基偶氮)苯基硼烷的光致异构化行为在很大程度上受B–N相互作用的影响。