A convenient synthesis of ethyl furo[2,3-<i style="">h</i>] flavone/chromone-8-carboxylates
IR@NISCAIR: CSIR-NISCAIR, New Delhi - ONLINE PERIODICALS REPOSITORY (NOPR)
View Archive InfoField | Value | |
Creator |
Reddy, S Satyanarayana
Venkati, M Rao, Y Jayaprakash Sharma, Kamalesh K Krupadanam, G L D |
|
Date |
2011-11-03T11:20:20Z
2011-11-03T11:20:20Z 2011-11 |
|
Identifier |
0975-0983(Online); 0376-4699(Print)
http://hdl.handle.net/123456789/13052 |
|
Description |
1671-1676
The reaction of 8-formyl-7-hydroxyflavones/chromone <b>2a-i </b>with diethyl bromomalonate in the presence of K<sub>2</sub>CO<sub>3</sub>/toluene and tetrabutylammoniumbromide (TBAB) as a phase transfer catalyst under nitrogen atmosphere affords ethyl furo[2,3-<i style="">h</i>]flavone-8-carboxylates <b style="">3a-h </b>and ethyl 2-(2'-furyl)-3-methyl-furo[2,3-<i style="">h</i>]chromone-8-carboxylate <b>3i</b><b style=""> </b>(Method A).<b style=""> </b>The reaction of <b style="">2a-i</b> with ethyl bromo acetate in powdered K<sub>2</sub>CO<sub>3</sub>/dioxane affords the same products <b>3a-i </b>(Method B). |
|
Language |
en_US
|
|
Publisher |
NISCAIR-CSIR, India
|
|
Rights |
<img src='http://nopr.niscair.res.in/image/cc-license-sml.png'> <a href='http://creativecommons.org/licenses/by-nc-nd/2.5/in' target='_blank'>CC Attribution-Noncommercial-No Derivative Works 2.5 India</a>
|
|
Source |
IJC-B Vol.50B(11) [November 2011]
|
|
Subject |
8-Formyl-7-hydroxyflavones/chromone
Tetrabutyl¬ammoniumbromide Diethyl bromo malonate Ethyl bromoacetate |
|
Title |
A convenient synthesis of ethyl furo[2,3-<i style="">h</i>] flavone/chromone-8-carboxylates
|
|
Type |
Article
|
|