Because of the upsurge of interest in polychlorobuta-1,3-diene derivatives as uncommon contaminants in underground water, seven congeners, the three pentachloro-and four tetrachloro-[(Z)-and (E)-1,1,3,4tetrachloro-, 1,1,4,4-tetrachloro-and (Z,Z)-1,2,3,4-tetrachloro]buta-1,3-dienes, were synthesized
1H And 1 3C NMR of some mercaptopyridine and pyridinethione carboxylic acids
β Scribed by A. Schanck; J. M. Dereppe; M. van Meerssche
- Publisher
- Wiley (John Wiley & Sons)
- Year
- 2010
- Weight
- 204 KB
- Volume
- 92
- Category
- Article
- ISSN
- 0037-9646
No coin nor oath required. For personal study only.
π SIMILAR VOLUMES
H and lSC NMR chemical shifts are reported and assigned for 1,4,9,10-and 2,3,9,1 O-anthracenetetrone. In addition, NMR data are given for 2,3-dihydroxy-9, 1 O-anthraquinone, 2.3-dimethoxy-9.10anthraquinone and 1 -hydroxy-2-acetoxy-9,l O-anthraquinone, encountered during the preparation of the anthra
The 1H and 13C NMR resonances of four 3H-naphtho[2,1-b]pyrans were completely and unambiguously assigned by a combination of homonuclear (gs-COSY), 1H-detected heteronuclear one-bond (gs-HMQC) and long-range (gs-HMBC) gradient-selected correlation experiments.
The 13 C, 31 P and 1 H NMR spectra of a series of dioxaphosphinopyridines and pyridoazaphosphinines were studied. The interpretation of the chemical shifts of these compounds was based on model compounds and on selective irradiation and two-dimensional shift correlated NMR techniques.
In addition to 1D NMR methods and 2D shift-correlated NMR techniques (COSY and HETCOR), spin-spin simulation and MMX calculations, to obtain the minimum energy conformation structure, were used for the complete 1 H and 13 C NMR assignments of stephalic acid.