NISCAIR Online Periodicals Repository

NISCAIR ONLINE PERIODICALS REPOSITORY (NOPR)  >
NISCAIR PUBLICATIONS >
Research Journals >
Indian Journal of Chemistry -Section B (IJC-B) >
IJC-B Vol.45B [2006] >
IJC-B Vol.45B(06) [June 2006] >


Title: Synthesis and mass spectral fragmentation patterns of some thiazole and imidazolidine derivatives
Authors: Mohamed, S M
Unis, M
El-Hady, H Abd
Keywords: Synthesis
mass spectral
thiazole and imidazolidine derivatives
Issue Date: Jun-2006
Publisher: CSIR
IPC CodeInt.Cl.8 C07D
Abstract: 3-[(Thiophen-2-ylmethylene)-amino]-4-oxo-imidazolidin-2-thione 4 and 5-aryl-2-[(thiophen-2-ylmethylene)-hydra­zino]-thiazole 5 have been prepared via cyclization of 1-(thiophen-2-ylmethylene)-thiosemicarbazone 3 with ethyl chloroacetate and ω-bromomethyl aryl ketones in presence of fused sodium acetate. Reaction of compounds 4 and 5 with hydrazine hydrate and acetic anhydride gives 1,2-bis-(thiophen-2-ylmethylene)-hydrazone 7 and N-acetyl derivatives 6 and 10. Treatment of 4 with benzyl chloride, choloracetyl chloride and 4-chlorobenzaldehyde yields the corresponding N-benzyl derivative 8, imidazolo [5, 1-c]-oxazine 9 and 3-[(thiophen-2-ylmethylene)-amino]-4-oxo-5-(4-chlorobenzylidene)-imidazolidin-2-thione 11, respectively. The mass spectral fragmentation patterns of some prepared compounds have been investigated in order to elucidate the structure of the synthesized compounds.
Page(s): 1453-1462
ISSN: 0975-0983(Online); 0376-4699(Print)
Source:IJC-B Vol.45B(06) [June 2006]

Files in This Item:

File Description SizeFormat
IJCB 45B(6) 1453-1462.pdf200.23 kBAdobe PDFView/Open
 Current Page Visits: 601 
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: 638350 since 06-Feb-2009  Last updated on 15-Dec-2014Webmaster: nopr@niscair.res.in