Unprecedented rearrangement of diketopyrrolopyrroles leads to structurally unique chromophores

作者：Vakuliuk Olena; Ooi Shota; Deperasinska Irena; Staszewska Krajewska Olga; Banasiewicz Marzena; Kozankiewicz Boleslaw; Danylyuk Oksana; Gryko Daniel T

来源：Chemical Communications, 2017, 53(87): 11877-11880.

DOI：10.1039/c7cc07310k

Diketopyrrolopyrroles possessing thienyl, furyl and benzofuryl substituents undergo unprecedented skeletal rearrangement in the presence of trimethylsilyl bromide resulting in the formation of thieno[2,3-f] isoindole-5,8-diones and furo[ 2,3-f] isoindole-5,8-diones. These relatively small dyes possess favorable photophysical properties with the emission maxima within the range of 573-624 nm, large fluorescence quantum yields, moderate sensitivity of emission to solvent polarity and a HOMO-LUMO gap of ca. 1.8 eV.

• 出版日期2017-11-11