The Synthesis and Physical Properties of Novel Polyaromatic Profluorescent Isoindoline Nitroxide Probes
作者:Kathryn E. Fairfull-Smith、Steven E. Bottle
DOI:10.1002/ejoc.200800597
日期:2008.11
New profluorescent mono- and di-isoindoline nitroxides (5, 11, 16 and 19) containing 9,10-diphenylanthracene and 9,10-bis(phenylethynyl)anthracene structural cores were synthesised by palladium-catalysed Suzuki and Sonogashira couplings. These nitroxide-fluorophore probes possess strongly suppressed fluorescence, even in the presence of only one nitroxide radical. Upon reduction, or reaction with other
通过钯催化的 Suzuki 和 Sonogashira 偶联合成了含有 9,10-二苯基蒽和 9,10-双 (苯基乙炔基) 蒽结构核心的新型荧光单-和二-异二氢吲哚氮氧化物 (5、11、16 和 19)。这些硝基氧荧光团探针具有强烈抑制的荧光,即使在仅存在一个硝基氧自由基的情况下也是如此。还原或与其他自由基反应后,恢复正常的荧光发射。氮氧化物与其相应的抗磁性类似物之间荧光输出的显着差异使这些探针成为使用荧光显微镜对聚合物降解进行成像的理想工具。(© Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2008)