Abstract
A new multicomponent domino reaction for rapid and regioselective synthesis of highly functionalized benzo[h]naphtho[2,3-a]acridine-15,16(5H,14H)-diones has been established. The reaction can be conducted by using readily available and inexpensive substrates under microwave irradiation. The procedures are facile, avoiding timeconsuming and costly syntheses, tedious work-up and purifications of precursors as well as protection/deprotection of functional groups. This method is much more efficient due to short reaction times and easy work up. The resulting naphthoacridines have been readily converted into benzoquinoxaline-fused benzoquinoline analogues by treating with benzene-1,2-diamine under microwave irradiation. The structural assignment has been ambiguously confirmed by X-ray analysis. A new mechanism has been proposed for this new multicomponent domino process....
Keywords: Benzoquinoxaline-fused benzoquinolines, microwave-assisted synthesis, multicomponent reaction, naphthoacridines, regioselectivity
Combinatorial Chemistry & High Throughput Screening
Title:Microwave-Assisted Multicomponent Reactions: Rapid and Regioselective Formation of New Extended Angular Fused Aza-Heterocycles
Volume: 15 Issue: 5
Author(s): Shu-Liang Wang, Ge Zhang, Ding Jie, Bo Jiang, Xing-Han Wang and Shu-Jiang Tu
Affiliation:
Keywords: Benzoquinoxaline-fused benzoquinolines, microwave-assisted synthesis, multicomponent reaction, naphthoacridines, regioselectivity
Abstract: A new multicomponent domino reaction for rapid and regioselective synthesis of highly functionalized benzo[h]naphtho[2,3-a]acridine-15,16(5H,14H)-diones has been established. The reaction can be conducted by using readily available and inexpensive substrates under microwave irradiation. The procedures are facile, avoiding timeconsuming and costly syntheses, tedious work-up and purifications of precursors as well as protection/deprotection of functional groups. This method is much more efficient due to short reaction times and easy work up. The resulting naphthoacridines have been readily converted into benzoquinoxaline-fused benzoquinoline analogues by treating with benzene-1,2-diamine under microwave irradiation. The structural assignment has been ambiguously confirmed by X-ray analysis. A new mechanism has been proposed for this new multicomponent domino process....
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Cite this article as:
Wang Shu-Liang, Zhang Ge, Jie Ding, Jiang Bo, Wang Xing-Han and Tu Shu-Jiang, Microwave-Assisted Multicomponent Reactions: Rapid and Regioselective Formation of New Extended Angular Fused Aza-Heterocycles, Combinatorial Chemistry & High Throughput Screening 2012; 15 (5) . https://dx.doi.org/10.2174/138620712800194459
DOI https://dx.doi.org/10.2174/138620712800194459 |
Print ISSN 1386-2073 |
Publisher Name Bentham Science Publisher |
Online ISSN 1875-5402 |
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