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One-Pot Synthesis of Biologically Important Spiro-2-amino-4 H -pyrans, Spiroacenaphthylenes, and Spirooxindoles Using DBU as a Green and Recyclable Catalyst in Aqueous Medium.
In: Synthetic Communications, Jg. 43 (2013-12-17), Heft 24, S. 3239-3246
Online
academicJournal
Zugriff:
We have reported DBU-catalyzed one-pot synthesis of biologically and pharmacologically important spiropyrans from condensation of malononitrile/ethyl cyanoacetate, 1,3-dicarbonyl compounds, and ninhydrin/acenaphthequinone/istain in good yields. This new protocol employing DBU, which is a green, recyclable, and inexpensive catalyst, offers advantages such as mild reaction conditions, short reaction times, and easy isolation of products. The structures have been confirmed by x-ray analysis. [Supplementary materials are available for this article. Go to the publisher's online edition ofSynthetic Communications®for the following free supplemental resource(s): Full experimental and spectral details.] [ABSTRACT FROM AUTHOR]
Titel: |
One-Pot Synthesis of Biologically Important Spiro-2-amino-4 H -pyrans, Spiroacenaphthylenes, and Spirooxindoles Using DBU as a Green and Recyclable Catalyst in Aqueous Medium.
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Autor/in / Beteiligte Person: | Saluja, Pooja ; Aggarwal, Komal ; Khurana, JitenderM. |
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Zeitschrift: | Synthetic Communications, Jg. 43 (2013-12-17), Heft 24, S. 3239-3246 |
Veröffentlichung: | 2013 |
Medientyp: | academicJournal |
ISSN: | 0039-7911 (print) |
DOI: | 10.1080/00397911.2012.760130 |
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