NISCAIR Online Periodicals Repository

NISCAIR ONLINE PERIODICALS REPOSITORY (NOPR)  >
NISCAIR PUBLICATIONS >
Research Journals >
Indian Journal of Chemistry -Section B (IJC-B) >
IJC-B Vol.50B [2011] >
IJC-B Vol.50B(11) [November 2011] >


Title: A convenient synthesis of ethyl furo[2,3-h] flavone/chromone-8-carboxylates
Authors: Reddy, S Satyanarayana
Venkati, M
Rao, Y Jayaprakash
Sharma, Kamalesh K
Krupadanam, G L D
Keywords: 8-Formyl-7-hydroxyflavones/chromone
Tetrabutyl┬Čammoniumbromide
Diethyl bromo malonate
Ethyl bromoacetate
Issue Date: Nov-2011
Publisher: NISCAIR-CSIR, India
Abstract: The reaction of 8-formyl-7-hydroxyflavones/chromone 2a-i with diethyl bromomalonate in the presence of K2CO3/toluene and tetrabutylammoniumbromide (TBAB) as a phase transfer catalyst under nitrogen atmosphere affords ethyl furo[2,3-h]flavone-8-carboxylates 3a-h and ethyl 2-(2'-furyl)-3-methyl-furo[2,3-h]chromone-8-carboxylate 3i (Method A). The reaction of 2a-i with ethyl bromo acetate in powdered K2CO3/dioxane affords the same products 3a-i (Method B).
Page(s): 1671-1676
CC License:  CC Attribution-Noncommercial-No Derivative Works 2.5 India
ISSN: 0975-0983(Online); 0376-4699(Print)
Source:IJC-B Vol.50B(11) [November 2011]

Files in This Item:

File Description SizeFormat
IJCB 50B(11) 1671-1676.pdf86.88 kBAdobe PDFView/Open
 Current Page Visits: 695 
Recommend this item

 

National Knowledge Resources Consortium |  NISCAIR Website |  Contact us |  Feedback

Disclaimer: NISCAIR assumes no responsibility for the statements and opinions advanced by contributors. The editorial staff in its work of examining papers received for publication is helped, in an honorary capacity, by many distinguished engineers and scientists.

CC License Except where otherwise noted, the Articles on this site are licensed under Creative Commons License: CC Attribution-Noncommercial-No Derivative Works 2.5 India

Copyright © 2012 The Council of Scientific and Industrial Research, New Delhi. All rights reserved.

Powered by DSpace Copyright © 2002-2007 MIT and Hewlett-Packard | Compliant to OAI-PMH V 2.0

Home Page Total Visits: 513160 since 06-Feb-2009  Last updated on 21-Apr-2014Webmaster: nopr@niscair.res.in