PTSA-catalyzed four-component domino reactions for the one-pot synthesis of functionalized 11H-benzo[a]benzo[6,7]chromeno[2,3-c]phenazine-11,16(17H)-diones in PEG

PTSA-catalyzed four-component domino reactions for the one-pot synthesis of functionalized... An efficient p-toluenesulfonic acid catalyzed synthesis of 11H-benzo[a]benzo[6,7]chromeno[2,3-c]phenazine-11,16(17H)-dione derivatives has been described by one-pot, four-component condensation of 2-hydroxynaphthalene-1,4-dione, o-phenylenediamine, aromatic aldehydes using polyethylene glycol as solvent. This domino protocol produces biologically considerable heterocycles with the formation of C–C, C=C, C–N, C=N, C–O bonds in a single operation and this efficient green process provides significant advantages such as: operational simplicity, easy work-up procedure, high yields, avoidance of hazardous or toxic catalysts and organic solvents, and is devoid of inessential derivatization and generation of hazardous substances. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Research on Chemical Intermediates Springer Journals

PTSA-catalyzed four-component domino reactions for the one-pot synthesis of functionalized 11H-benzo[a]benzo[6,7]chromeno[2,3-c]phenazine-11,16(17H)-diones in PEG

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Publisher
Springer Netherlands
Copyright
Copyright © 2016 by Springer Science+Business Media Dordrecht
Subject
Chemistry; Catalysis; Physical Chemistry; Inorganic Chemistry
ISSN
0922-6168
eISSN
1568-5675
D.O.I.
10.1007/s11164-015-2413-7
Publisher site
See Article on Publisher Site

Abstract

An efficient p-toluenesulfonic acid catalyzed synthesis of 11H-benzo[a]benzo[6,7]chromeno[2,3-c]phenazine-11,16(17H)-dione derivatives has been described by one-pot, four-component condensation of 2-hydroxynaphthalene-1,4-dione, o-phenylenediamine, aromatic aldehydes using polyethylene glycol as solvent. This domino protocol produces biologically considerable heterocycles with the formation of C–C, C=C, C–N, C=N, C–O bonds in a single operation and this efficient green process provides significant advantages such as: operational simplicity, easy work-up procedure, high yields, avoidance of hazardous or toxic catalysts and organic solvents, and is devoid of inessential derivatization and generation of hazardous substances.

Journal

Research on Chemical IntermediatesSpringer Journals

Published: Jan 14, 2016

References

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