1339957-58-2Relevant academic research and scientific papers
Synthesis of fully asymmetric diketopyrrolopyrrole derivatives
Sharma, Lisa,Bronstein, Hugo
, p. 5276 - 5283 (2021)
Diaryl-diketopyrrolopyrroles (DPP) are a widely studied class of chromophore that possesses unique properties which have been of great interest for use in conjugated polymers and as small molecules in optoelectronic devices. While previously only partially asymmetric DPP derivatives have been reported, here a novel methodology towards fully asymmetric DPP derivatives is demonstrated via the synthesis and condensation of novel alkylated thienyl pyrrolinone esters with aromatic nitriles followed by N-alkylation. Two fully asymmetric DPP structural isomers T-DPP-P and P-DPP-T were synthesised demonstrating the full customizability of the DPP core. A further two fully asymmetric DPP derivatives incorporating an ethylene glycol chain and a furan moiety were also synthesised, demonstrating the scope of this powerful methodology and it's potential to largely broaden the library of available DPP derivatives.
O- and N-alkylated diketopyrrolopyrrole derivatives
Frebort, ?těpán,Eliá?, Zdeněk,Ly?ka, Antonín,Luňák Jr., Stanislav,Vyňuchal, Jan,Kubá?, Lubomir,Hrdina, Radim,Burgert, Ladislav
experimental part, p. 5769 - 5773 (2011/12/14)
The alkylation of 3-phenyl-6-(2-thienyl)pyrrolo[3,4-c]pyrrole-1,4-dione with 1-bromo-2-ethylhexane was performed. Besides the expected N,N0-dialkylated product, both possible N,O-dialkyl derivatives were isolated and identified for the first time. The pos
