dc.contributor.author |
SAMINA ALAM |
|
dc.contributor.author |
ZAHEER-UD-DIN BABER |
|
dc.contributor.author |
KHAN, NAEEMA |
|
dc.date.accessioned |
2023-08-25T10:11:43Z |
|
dc.date.available |
2023-08-25T10:11:43Z |
|
dc.date.issued |
2000-12-03 |
|
dc.identifier.citation |
Alam, S., Baber, Z. U. D., & Khan, N. (2000). Use of NMR and mass spectrometry in establishing the structures of ring opening products of 3-methyl-4, 1-benzoxazepine-2, 5-dione in acid and basic media. JOURNAL OF THE CHEMICAL SOCIETY OF PAKISTAN, 22(4), 299-302. |
en_US |
dc.identifier.issn |
0253-5106 |
|
dc.identifier.uri |
http://142.54.178.187:9060/xmlui/handle/123456789/19561 |
|
dc.description.abstract |
3-Methyl-4,1-benzoxazepine-2.5-dione (I) when stirred for lr hours in methanolic solution with a few drops of 10 %. NaOH below 60 degreesC gave solid crystalline product (m.p. 100-102 degreesC, 51% yield). H-1 NMR and MS analysis confirmed structure (II) which suggest the cleavage of C-O bond but when (I) was treated with a few drops of 10% HCl under similar temperature yielded compound (III) as a liquid which gave evidence for C-N bond cleavage giving no traces of the former product (II). |
en_US |
dc.description.sponsorship |
The chemical society of Pakistan is an approved society from the PSF |
en_US |
dc.language.iso |
en |
en_US |
dc.publisher |
Karachi: International Centre for Chemical and Biological Sciences, H.E.J. Research Institute of Chemistry, University of Karachi |
en_US |
dc.title |
Use of NMR and Mass Spectrometry in Establishing the Structures of Ring Opening products of 3- Methyl- 4,1- Benzoxazepine-2,5- Dione in Acid and Basic Media |
en_US |
dc.type |
Article |
en_US |