Boron dipyrromethene (BODIPY) dyes represent a particular class within the broad array of potential photosensitizers. Their highly fluorescent nature opens the door for theragnostic applications, combining imaging and therapy using a single, easily synthesized chromophore. However, near‐infrared absorption is strongly desired for photodynamictherapy to enhance tissue penetration. Furthermore, singlet
A series of 39 boron-dipyrrolylmethenes (BODIPYs) have been synthesized and characterized. Their spectroscopic properties, degree of lipophilicity, chemical stability under irradiation, and singlet-oxygen generation rate have also been studied. These compounds differ in the presence of ethyl groups (group A), hydrogens (group B) or iodines (group C) on the 2,6 positions; these appendices confer particular characteristics to each group. The presence of an aromatic substituent or hydrogen on the indacene 8 position produces 13 different molecules of each group. Besides the effects exerted by the group or atom on the 2,6 positions, the substituent on the 8 position exerts a further effect on the physico-chemical parameters, thus the desired properties of BODIPYs, concerning fluorescence, lipophilicity, and singlet oxygen production can be modulated accordingly. (C) 2013 Elsevier Ltd. All rights reserved.
Synthesis and properties of BODIPY polymers and their photocatalytic performance for aerobic oxidation of benzylamine
作者:Yuanrong Zhou、Zeyin Zhou、Yongjin Li、Weijun Yang
DOI:10.1016/j.catcom.2015.01.034
日期:2015.4
A solid BODIPY polymer was synthesized by Suzuki coupling reaction, which was an efficient heterogeneous photocatalyst for oxidative condensation of benzylamine with 2-aminothiophenol under mild conditions. Being highly thermally and photochemically stable under irradiation, it could be reused several times. (C) 2015 Elsevier B.V. All rights reserved.
β-Formyl-BODIPYs from the Vilsmeier−Haack Reaction
A series of beta-formyl-BODIPYs 2 were synthesized in high yields from tetramethyl-BODIPYs 1 via the Vilsmeier-Haack reaction and were further functionalized using a Knoevenagel condensation to generate novel BODIPYs 3 and 4.