The 1H and 13C NMR resonances of 19 tetracyclic acridinone derivatives were completely and unambiguously assigned by a combination of 1H-detected one-bond HMQC and long-range (two and three bonds) HMBC correlation experiments. 1H and 13C chemical shifts are also reported for the respective N -aryl b
1H and 13C chemical shifts of 4,5-disubstituted acridine derivatives
β Scribed by S. Issmaili; V. Pique; J. -P. Galy; R. Faure
- Publisher
- John Wiley and Sons
- Year
- 1999
- Tongue
- English
- Weight
- 54 KB
- Volume
- 37
- Category
- Article
- ISSN
- 0749-1581
No coin nor oath required. For personal study only.
β¦ Synopsis
The 1 H and 13 C NMR chemical shifts of 16 4,5disubstituted acridine derivatives and nine 4-substituted-5,5 0 (Λ0 0 ,Ο 00diaminoacyl)bisacridine derivatives are reported. Chemical shift assignments were established from 1D and gradient-enhanced 2D measurements.
π SIMILAR VOLUMES
## Reference Data and chemical shifts of some tetracyclic and 1H 13C pentacyclic acridinone derivatives
The complete assignment of the 1H and 13C NMR spectra of eight thienyl-substituted chromenes was achieved by the concerted application of homonuclear (gs-COSY), 1H-detected heteronuclear one-bond (gs-HMQC) and long-range (gs-HMBC) gradientselected correlation experiments.
H and 13C NMR chemical shifts and the homo-and heteronuclear coupling constants of 14 nitroxanthones are presented. Specific nitro increments for xanthones depending on substituent position and on the respective ring carbon position and shift additivity rules were developed by means of multiple line
The "0 NMR signal of formaldehyde was measured and the literature values of the "C and 'H signals are discussed. They are compared with values obtained by other spectroscopic methods and by ub initio calculation.