NISCAIR Online Periodicals Repository

NISCAIR ONLINE PERIODICALS REPOSITORY (NOPR)  >
NISCAIR PUBLICATIONS >
Research Journals >
Indian Journal of Chemistry -Section B (IJC-B) >
IJC-B Vol.44B [2005] >
IJC-B Vol.44B(06) [June 2005] >


Title: Bismuth oxide perchlorate catalysed efficient synthesis of 3,4-dihydropyrimidin-2(1H)-ones: An improved high yielding protocol for the Biginelli reaction
Authors: Reddy, Y Thirupathi
Reddy, P Narsimha
Kumar, B Sunil
Rao, G V P
Rajitha, B
Issue Date: Jun-2005
Publisher: CSIR
IPC CodeInt.Cl.7 C 07 D 239/00
Abstract: Dihydropyrimidines are prepared by a one-pot cyclo­con­densation of aldehydes, β-ketoesters and urea in acetonitrile by using bismuth oxide perchlorate as the catalyst for the first time is described. Compared to the classical Biginelli reaction conditions, this new method consistently has the advantage of excellent yields (85-95%) and short reaction time (2-4 hr) at lower temperature (40-50oC).
Page(s): 1304-1306
ISSN: 0975-0983(Online); 0376-4699(Print)
Source:IJC-B Vol.44B(06) [June 2005]

Files in This Item:

File Description SizeFormat
IJCB 44B(6) 1304-1306.pdf94.55 kBAdobe PDFView/Open
 Current Page Visits: 506 
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: 603852 since 06-Feb-2009  Last updated on 21-Oct-2014Webmaster: nopr@niscair.res.in