Here we report a general method for the synthesis of polycyclic aromatic dicarboximides (PADIs) by palladium-catalyzed annulation of naphthalene dicarboximide to different types of aromatic substrates. Reaction conditions were optimized by systematic variation of ligand, solvent, and additive. It was shown that solvent has a decisive effect on the yield of the reaction products, and thus 1-chloronaphthalene as solvent afforded the highest yield. By applying the optimized reaction conditions, a broad series of planar carbo- and heterocycle containing PADIs were synthesized in up to 97% yield. Moreover, this approach could be applied to curved aromatic scaffold to achieve the respective bowl-shaped PADI. Two-fold annulation was accomplished by employing arene diboronic esters, affording polycyclic aromatic bis(dicarboximides). The optical and electrochemical properties of this broad series of PADIs were explored as well.
%0 Journal Article
%1 Shoyama_2018
%A Shoyama, Kazutaka
%A Mahl, Magnus
%A Seifert, Sabine
%A Würthner, Frank
%D 2018
%I American Chemical Society (ACS)
%J The Journal of Organic Chemistry
%K afm cells molecular myown organic
%N 10
%P 5339--5346
%R 10.1021/acs.joc.8b00301
%T A General Synthetic Route to Polycyclic Aromatic Dicarboximides by Palladium-Catalyzed Annulation Reaction
%U https://doi.org/10.1021%2Facs.joc.8b00301
%V 83
%X Here we report a general method for the synthesis of polycyclic aromatic dicarboximides (PADIs) by palladium-catalyzed annulation of naphthalene dicarboximide to different types of aromatic substrates. Reaction conditions were optimized by systematic variation of ligand, solvent, and additive. It was shown that solvent has a decisive effect on the yield of the reaction products, and thus 1-chloronaphthalene as solvent afforded the highest yield. By applying the optimized reaction conditions, a broad series of planar carbo- and heterocycle containing PADIs were synthesized in up to 97% yield. Moreover, this approach could be applied to curved aromatic scaffold to achieve the respective bowl-shaped PADI. Two-fold annulation was accomplished by employing arene diboronic esters, affording polycyclic aromatic bis(dicarboximides). The optical and electrochemical properties of this broad series of PADIs were explored as well.
@article{Shoyama_2018,
abstract = {Here we report a general method for the synthesis of polycyclic aromatic dicarboximides (PADIs) by palladium-catalyzed annulation of naphthalene dicarboximide to different types of aromatic substrates. Reaction conditions were optimized by systematic variation of ligand, solvent, and additive. It was shown that solvent has a decisive effect on the yield of the reaction products, and thus 1-chloronaphthalene as solvent afforded the highest yield. By applying the optimized reaction conditions, a broad series of planar carbo- and heterocycle containing PADIs were synthesized in up to 97% yield. Moreover, this approach could be applied to curved aromatic scaffold to achieve the respective bowl-shaped PADI. Two-fold annulation was accomplished by employing arene diboronic esters, affording polycyclic aromatic bis(dicarboximides). The optical and electrochemical properties of this broad series of PADIs were explored as well.},
added-at = {2018-05-23T09:02:56.000+0200},
author = {Shoyama, Kazutaka and Mahl, Magnus and Seifert, Sabine and Würthner, Frank},
biburl = {https://www.bibsonomy.org/bibtex/24fc79a93c140835e9b104772a422063f/wuerthner_group},
doi = {10.1021/acs.joc.8b00301},
interhash = {f51e54c7b03e1f00188baabfcaee4311},
intrahash = {4fc79a93c140835e9b104772a422063f},
journal = {The Journal of Organic Chemistry},
keywords = {afm cells molecular myown organic},
month = {March},
number = 10,
pages = {5339--5346},
publisher = {American Chemical Society (ACS)},
timestamp = {2019-03-11T13:41:25.000+0100},
title = {A General Synthetic Route to Polycyclic Aromatic Dicarboximides by Palladium-Catalyzed Annulation Reaction},
url = {https://doi.org/10.1021%2Facs.joc.8b00301},
volume = 83,
year = 2018
}