The design and synthesis of four large-cavity azobenzenophanes, capable of forming photochemically controllable complexes with organic guest molecules, are described. These azobenzenophanes, possessing m-terphenyl, aromatic carbonyl, and chiral BINOL spacers, were synthesized from the corresponding bisphenols and dibromides using simple O-alkylation methodology. A preliminary photochemical study was carried out on the aromatic carbonyl spacer containing azobenzenophane, and the isosbestic points for the cis–trans isomerization process appeared at 319 and 419 nm.
本文介绍了四种大腔偶氮苯并吡喃的设计与合成,它们能够与有机客体分子形成光化学可控复合物。这些偶氮苯甲烷具有间三联苯、芳香羰基和手性 BINOL 中间体,是用简单的 O- 烷基化方法从相应的双酚和二溴化物合成的。对含有偶氮苯并烯烃的芳香羰基间隔物进行了初步的光化学研究,发现顺反异构过程的等色点出现在 319 和 419 纳米波长处。