โ Scribed by George Bratulescu
No coin nor oath required. For personal study only.
๐ SIMILAR VOLUMES
A series of 14 3-substituted 4-oxoquinolones with or without a substituent (methyl, ethyl) in position 1 were prepared. Literature and measured data were used to study the inรuence of the substituent on the shifts of carbon atoms of these compounds, which are model compounds for antibacterial drugs
## Abstract The synthesis of ring A substituted TAP'S starts from 5,6โdiaminoquinoxaline (II), which is condensed with nโbutylglyoxylate to give a mixture of 2โ and 3โhydroxyโTAP, which reacted with POCl~3~/PCl~5~ to afford the corresponding monochlorocompound. Similarly, the condensation of II and
The rare alkaloid casimiroedine and its peracetylated derivative both show complex 1 H and 13 C spectra with almost all signals doubled owing to slow rotation about the amide bond. Nevertheless, it is possible, using 2D NMR methods, to assign fully the 1 H and 13 C spectra of the major and minor con
The ' H and "C NMR of a series of benzoic acid-substituted nitrate esters were measured and assigned on the basis of substituent chemical shifts, COSY experiments and 13C,' H shift correlated spectra KEYWORDS 'H NMR; "C NMR; benzoic acid derivatives; organic nitrate esters