Synthesis and Photophysical Behavior of a Highly Fluorescent Family of Unsymmetrical Organoboron Complexes Containing 5-(Pyridin-2-ylmethylene)imidazolidine-2,4-dione Moieties
作者:M. Soledad Garre、Raúl Losantos、Sara Gutiérrez、David Sucunza、Patricia García-García、Diego Sampedro、Juan J. Vaquero
DOI:10.1021/acs.joc.9b02451
日期:2020.1.17
A new and highly fluorescent family of unsymmetrical organoboron complexes containing 5-(pyridin-2-ylmethylene)imidazolidine-2,4-dione moieties has been synthesized in three steps. These compounds show strong absorptions covering a wide range of the UV-vis spectrum and are strongly emissive (ϕf of up to 0.92 in CH3CN). Moreover, two fluorophores that include an alkyne or an azide group at the end of
通过三个步骤合成了一个新的高荧光家族的不对称有机硼配合物,该配合物含有5-(吡啶-2-基亚甲基)咪唑烷-2,4-二酮部分。这些化合物在很宽的紫外线-可见光谱范围内均显示出强吸收性,并且具有强发射性(在CH3CN中,ϕf最高为0.92)。此外,已经开发了两个荧光团,其在烷基链的末端包括炔或叠氮基,并且在生物正交化学中具有潜在的用途。其中之一是特别重要的,其中乙二醇取代基可提供增强的水溶性而不损害荧光(水中的f = 0.85)。