Tuning the photophysical properties of luminescent lanthanide complexes through regioselective antenna fluorination
作者:Daniel Kocsi、Andreas Orthaber、K. Eszter Borbas
DOI:10.1039/d2cc01229d
日期:——
synthesised from olefinic precursors via a photochemical isomerisation-cyclisation route, and incorporated into octadentate cyclen triacetate ligands that formed luminescent complexes with Tb(III) and Eu(III). The photophysical properties of the emitters were strongly dependent on the position of the fluorination.
在 3、5 或 6 位单氟化的喹诺酮类化合物由烯烃前体通过光化学异构化-环化途径合成,并结合到与 Tb( III ) 和 Eu( III )形成发光络合物的八齿环烯三乙酸酯配体中。发射器的光物理性质强烈依赖于氟化的位置。
Quinolinone derivative and antiallergic agent with said quinolinone derivative as the active ingredient
申请人:DAINIPPON INK AND CHEMICALS, INC.
公开号:EP0785190A2
公开(公告)日:1997-07-23
The present invention offers 7-aminoquinolinone derivatives, physiologically acceptable salts thereof, anti-allergic agents having as an active ingredient a 7-aminoquinolinone derivative or physiologically acceptable salt thereof, and 7-nitroquinolinone derivatives, wherein the 7-aminoquinolinone derivative is expressed by the following general formula (I):
wherein
R1 is a hydrogen atom or an alkyl group;
R2 and R3 are mutually different groups, each of which is selected from among hydrogen atoms, acyl groups, alkyl groups or alkenyl groups; and
R4 and R5 are mutually different or identical groups, each of which is selected from among hydrogen atoms, acyl groups, alkyl groups, alkenyl groups or aralkyl groups;
and physiologically acceptable salts thereof.