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Synthetic Communications
An International Journal for Rapid Communication of Synthetic Organic Chemistry
Volume 45, 2015 - Issue 21
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Original Articles

Green Aspect for Multicomponent Synthesis of Spiro[4H-indeno[1,2-b]pyridine-4,3′-[3H]indoles]

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Pages 2498-2510 | Received 07 Jun 2015, Published online: 27 Oct 2015
 

Abstract

An efficient, four-component reaction of isatin, 1,3-indanedione, ethyl acetoacetate, and ammonium acetate in ethanol/water (9:1) system furnished spiro[4H-indeno[1,2-b]pyridine-4,3′-[3H]indoles] at room temperature. Merits of the method are mild reaction conditions, simple workup procedure, and ambient temperature. The synthesized compounds exhibit excellent fluorescence properties.

GRAPHICAL ABSTRACT

ACKNOWLEDGMENTS

We are grateful to Prof. S. R. Patil and Mr. P. G. Mahajan, Department of Chemistry, Shivaji University, Kolhapur, for fluorescence study of synthesized compounds and fruitful discussion on it.

SUPPLEMENTAL MATERIAL

Supplemental data for this article can be accessed on the publisher’s website.

Additional information

Funding

D. M. P. is thankful to the University Grants Commission, New Delhi, for financial assistance [F. No. 42- 394/2013(SR)].

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