Starting from paramagnetic β-bromo-α,β-unsaturated aldehyde 1, β-bromo-α,β-unsaturated nitrile 2 and diene 3 heterocycles 4-10 and carbocycles 12-14, 16, and 17 were synthesized with simple procedures in the presence of a nitroxide moiety. A complex-forming paramagnetic phenanthroline 19 is also described.
The First Example of an Azaphenalene Profluorescent Nitroxide
作者:James P. Blinco、John C. McMurtrie、Steven E. Bottle
DOI:10.1002/ejoc.200700545
日期:2007.10
The synthesis of the first example of an azaphenalene-based fused aromatic nitroxide TMAO, [1,1,3,3-tetramethyl-2,3-dihydro-2-azaphenalen-2-yloxyl, (5)], is described. This novelnitroxide possesses some of the structural rigidity of the isoindoline class of nitroxides, as well as some properties akin to TEMPO nitroxides. Additionally, the integral aromatic ring imparts fluorescence that is switched