NISCAIR Online Periodicals Repository

NISCAIR ONLINE PERIODICALS REPOSITORY (NOPR)  >
NISCAIR PUBLICATIONS >
Research Journals >
Indian Journal of Chemistry -Section B (IJC-B) >
IJC-B Vol.46B [2007] >
IJC-B Vol.46B(01) [January 2007] >


Title: Microwave accelerated synthesis of novel spiro heterocycles
Authors: Dabholkar, Vijay V
Parab, Sagar D
Keywords: Dibromocarbostyril
Triazole
Guanidine
Thioguanidine
Thiocarbohydrazide
Quinoline
Issue Date: Jan-2007
Publisher: CSIR
IPC CodeInt.Cl.⁸ C07D
Abstract: Interaction of 3,3-dibromo carbostyril 1 with substituted triazoles 2, amidinothiocarbamides 4, amidinocarbamide 6, guanidines 8 and thiocarbohydrazide 10 furnishes spiro(1'H-2',4'-dioxo-6',8'-disubstituted quinoline)-4H-1,3,4-thiadiazolo[2,3-d]-(3-substituted)-1,2,4-triazole 3, 2-guanidino/substituted guanidino-spiro(1'H-2',4'-dioxo-6',8'-disubstituted quinoline)-1,3-thiazetidin-2-ene 5, 2-guanidino-spiro(1'H-2',4'-dioxo-6',8'-disubstituted quinoline)-1,3-oxazetidin-2-ene 7, 1H-2-amino/N-substituted amino-spiro(1'H-2',4'-dioxo-6',8'-disubstituted quinoline)-1,3-diazetidin-2-ene 9, 8,9-(2',4'-disubstituted)-benzo-1-thia-2-hydrazino-3,4,7-triaza-4,7-dihydro-6,10-dioxo-spiro [4,5] dec-2-ene 11 respectively. The salient features of the microwave approach are rapid reaction rates, cleaner reaction condition and enhancement in chemical yields compared to classical method. The structures of synthesized compounds have been confirmed by IR, ¹H and ¹³C NMR.
Page(s): 195-200
ISSN: 0376-4699
Source:IJC-B Vol.46B(01) [January 2007]

Files in This Item:

File Description SizeFormat
IJCB 46B(1) (2007) 195-200.pdf149.48 kBAdobe PDFView/Open
 Current Page Visits: 764 
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: 622011 since 06-Feb-2009  Last updated on 13-Nov-2014Webmaster: nopr@niscair.res.in