## Abstract The ^1^H NMR spectrum of naphtho [1โฒ,2โฒ:4,5]thieno[2,3โ__c__]quinoline is highly congested because all the protons are in an aromatic environment, and the structure of the molecule is nearly symmetric. With this in mind, the assignment of the ^1^H and ^13^C NMR spectra of this compound
13C NMR spectra of thieno[2,3-b][1,5]benzodiazepine neuroleptics
โ Scribed by David M. Rackham; Sarah E. Morgan
- Publisher
- John Wiley and Sons
- Year
- 1982
- Tongue
- English
- Weight
- 159 KB
- Volume
- 18
- Category
- Article
- ISSN
- 0749-1581
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โฆ Synopsis
Abstract
The ^13^C NMR spectra of five thieno[2,3โb][1,5]benzodiazepines and two related benzodiazepinones have been recorded at 22.64 MHz using broad band and offโresonance proton decoupling techniques. Spectral interpretation is facilitated by the presence of one (or more) fluorine substituents in the benzoโring.
๐ SIMILAR VOLUMES
## Abstract ^13^C chemical shifts for 16 derivatives of furo[3,2โ__b__] pyrrole substituted at positions 2, 4 and 5 are reported. The __J__(CH) values were determined for some derivatives. Heterocorrelated 2D ^1^Hโ^13^C NMR spectra, selective heteronuclear decoupling and selective INEPT experiments
The uC NMR spectra of three mesoionic 1,2,3-triazol-4-ylacetamides and two 1,2,3-triazol-4-ones were determined, and an evaluation of the shifts in relation to their mesoionic structure was made. A h e a r correlation between the I3C resonances and net charge densities, calculated by the CNDO/% meth
The complete assignments of the 13C NMR resonances for eight tetrahydrothiazolo [3,2-d] [1,4] benzodiazepin-3(2H)-ones are reported. The data obtained account for a conformational rigidity of the heptatomic ring as a consequence of the annelation of the thiazolidinone nucleus. KEY WORDS '3C NMR Tetr
REFERENCE DATA tene rings of 1-6 therefore invariably induced shielding of the spiro carbons. This cannot be explained entirely on the basis of a changed inductive effect owing to higher homologation, because such an effect will contribute only 1.5 ppm towards shielding.' It is likely that introduct