NMR spectral study of some organometallic derivatives of indoles

1971 ◽  
Vol 36 (21) ◽  
pp. 3091-3095 ◽  
Author(s):  
Manfred G. Reinecke ◽  
John F. Sebastian ◽  
Harry W. Johnson ◽  
Chongsuh Pyun
Keyword(s):  
Spectral Study ◽  
Derivatives Of

Electronic and infrared spectral study of chromium (III) derivatives of the type [Cr(NCS)4.(ligand)2]-

1967 ◽  
Vol 6 (9) ◽  
pp. 1625-1631 ◽  
Author(s):  
Martin Arthur Bennett ◽  
Robin J. H. Clark ◽  
Arthur D. J. Goodwin
Keyword(s):  
Spectral Study ◽  
Infrared Spectral ◽  
Derivatives Of

Electron Ionisation Mass Spectral Study of Oxo- and Thio Derivatives of Minor Tobacco Alkaloids

2011 ◽  
Vol 17 (3) ◽  
pp. 227-235
Author(s):  
Beata Jasiewicz ◽  
Marzena Wojciechowska-Nowak ◽  
Władysław Boczoń ◽  
Elzbieta Wyrzykiewicz
Keyword(s):  
Spectral Study ◽  
Mass Spectral ◽  
Mass Spectral Study ◽  
Tobacco Alkaloids ◽  
Derivatives Of ◽  
Ionisation Mass

X-ray spectral study of the electronic structure of derivatives of perfluorodiphenyl sulfide

1977 ◽  
Vol 17 (3) ◽  
pp. 375-379 ◽  
Author(s):  
G. N. Dolenko ◽  
L. I. Nasonova ◽  
L. N. Mazalov ◽  
G. G. Furin ◽  
G. G. Yakobson
Keyword(s):  
Electronic Structure ◽  
Spectral Study ◽  
X Ray ◽  
Derivatives Of

Mass spectral study of derivatives of the four bilirubin-IX isomers

1976 ◽  
Vol 3 (4) ◽  
pp. 155-160 ◽  
Author(s):  
F. Compernolle ◽  
N. Blanckaert ◽  
K. P. M. Heirwegh
Keyword(s):  
Spectral Study ◽  
Mass Spectral ◽  
Mass Spectral Study ◽  
Derivatives Of

Carbon-13 nuclear magnetic resonance spectral study of some isomeric derivatives of 2-methoxytropone. Troponoid-II

1979 ◽  
Vol 57 (15) ◽  
pp. 1949-1957 ◽  
Author(s):  
J. F. Bagli ◽  
T. Bogri ◽  
B. Palameta ◽  
M. St-Jacques
Keyword(s):  
Nuclear Magnetic Resonance ◽  
Charge Transfer ◽  
Magnetic Resonance ◽  
Spectral Study ◽  
Nmr Spectra ◽  
Membered Ring ◽  
Electronic Charge ◽  
Derivatives Of ◽  
Electronic Charge Transfer ◽  
C Nmr

The 13C nmr spectra of several isomeric monosubstituted derivatives of 2-methoxytropone together with some dibromo derivatives have been obtained and analysed. Substituent parameters were defined and shown to exhibit additivity. Differences with corresponding parameters for monosubstituted benzene analogs suggest proximity interactions between the 3-substituents and the 2-OCH3 group as well as between 7-substituents and the adjacent carbonyl group. The data indicates that the OCH3 group is a convenient probe to investigate the orientation of mesomeric electronic charge transfer to the various carbons of the tropone seven-membered ring. Finally, it is demonstrated that 13C nmr is quite useful to distinguish between the various substituted 2-methoxytropones.

scholarly journals Synthesis and Spectral Study of Novel Norfloxacin Derivatives

2008 ◽  
Vol 5 (s2) ◽  
pp. 1154-1158
Author(s):  
Pradeep Yadav ◽  
Y. C. Joshi
Keyword(s):  
Carboxylic Acid ◽  
Spectral Study ◽  
Spectral Studies ◽  
H Nmr ◽  
Derivatives Of

Reaction of [1-ethyl-6-fluoro-1,4-dihydro-4-oxo-7-(1-piperazinyl)-quinolone-3-carboxylic acid (norfloxacin) with thiazole / benzothiazole diazonium chloride to get new piperazine substituted norfloxacin derivative. These norfloxacin derivatives were further condensed with variousβ-diketone to get novel acid derivatives of 1-Ethyl-6-fluoro-4-oxo-7- [4 (thiazol-2-yldiazenyl)-piperzin-1-yl]-1,4-dihydro-quinoline-3-carboxylic acid (6a-e) and 7-(4-(benzo[d]thiazol-2-yldiazenyl)piperazin-1-yl)-1-ethyl-6-fluoro-4-oxo-1, 4-dihydroquinoline-3-carboxylic acid (6 f-j). Structures of these compounds were established on the basis of spectral studies viz. IR,1H NMRetc.

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