Mild preparation of 2-amino-3-cyano-4-aryl-4H-benzo[h]chromenes and 2-amino-3-cyano-1-aryl-1H-benzo[f]chromenes, under solvent-free conditions, catalyzed by recyclable basic ionic liquids

Mild preparation of 2-amino-3-cyano-4-aryl-4H-benzo[h]chromenes and... The mild basic ionic liquids 2-hydroxyethanaminium formate, 3-hydroxypropanaminium formate, 2-hydroxyethanaminium acetate, and 3-hydroxypropanaminium acetate catalyze three-component condensation of aromatic aldehydes, malononitrile, and α or β-naphthol to afford the corresponding 2-amino-3-cyano-4-aryl-4H-benzo[h]chromenes and 2-amino-3-cyano-1-aryl-1H-benzo[f]chromenes, respectively. Attractive features of the method are the simple procedure, high yields, short reaction time, and environmentally benign method. The inexpensive and non-toxic ionic liquids can be reused several times without noticeable loss of their activity. These ionic liquids are better catalysts than others reported in the literature. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Research on Chemical Intermediates Springer Journals

Mild preparation of 2-amino-3-cyano-4-aryl-4H-benzo[h]chromenes and 2-amino-3-cyano-1-aryl-1H-benzo[f]chromenes, under solvent-free conditions, catalyzed by recyclable basic ionic liquids

Loading next page...
 
/lp/springer_journal/mild-preparation-of-2-amino-3-cyano-4-aryl-4h-benzo-h-chromenes-and-2-glVL6Bia2j
Publisher
Springer Netherlands
Copyright
Copyright © 2013 by Springer Science+Business Media Dordrecht
Subject
Chemistry; Catalysis; Physical Chemistry; Inorganic Chemistry
ISSN
0922-6168
eISSN
1568-5675
D.O.I.
10.1007/s11164-013-1274-1
Publisher site
See Article on Publisher Site

Abstract

The mild basic ionic liquids 2-hydroxyethanaminium formate, 3-hydroxypropanaminium formate, 2-hydroxyethanaminium acetate, and 3-hydroxypropanaminium acetate catalyze three-component condensation of aromatic aldehydes, malononitrile, and α or β-naphthol to afford the corresponding 2-amino-3-cyano-4-aryl-4H-benzo[h]chromenes and 2-amino-3-cyano-1-aryl-1H-benzo[f]chromenes, respectively. Attractive features of the method are the simple procedure, high yields, short reaction time, and environmentally benign method. The inexpensive and non-toxic ionic liquids can be reused several times without noticeable loss of their activity. These ionic liquids are better catalysts than others reported in the literature.

Journal

Research on Chemical IntermediatesSpringer Journals

Published: Jun 19, 2013

References

You’re reading a free preview. Subscribe to read the entire article.


DeepDyve is your
personal research library

It’s your single place to instantly
discover and read the research
that matters to you.

Enjoy affordable access to
over 12 million articles from more than
10,000 peer-reviewed journals.

All for just $49/month

Explore the DeepDyve Library

Unlimited reading

Read as many articles as you need. Full articles with original layout, charts and figures. Read online, from anywhere.

Stay up to date

Keep up with your field with Personalized Recommendations and Follow Journals to get automatic updates.

Organize your research

It’s easy to organize your research with our built-in tools.

Your journals are on DeepDyve

Read from thousands of the leading scholarly journals from SpringerNature, Elsevier, Wiley-Blackwell, Oxford University Press and more.

All the latest content is available, no embargo periods.

See the journals in your area

DeepDyve Freelancer

DeepDyve Pro

Price
FREE
$49/month

$360/year
Save searches from
Google Scholar,
PubMed
Create lists to
organize your research
Export lists, citations
Read DeepDyve articles
Abstract access only
Unlimited access to over
18 million full-text articles
Print
20 pages/month
PDF Discount
20% off