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The ^13^C NMR spectra of 2‐halopicolines, 2‐halopicoline N‐oxides and 2‐halo‐4‐nitropicoline N‐oxides were recorded and their chemical shifts assigned. The influence of the electronic properties of the substituents on the direction of the chemical shifts is discussed.
📜 SIMILAR VOLUMES
## Abstract ^13^C NMR spectra of 4‐substituted 3‐chloro‐ and 3‐bromo‐2,6‐dimethylpyridine __N__‐oxides in CDCI~3~ and their chemical shifts are reported. The influence of the electronic properties of the substituent in the 4‐position and the __ortho__ effect on the direction of chemical shifts and
## Abstract Carbon‐13 NMR chemical shifts and ^1^__J__(CH), ^2^__J__(CH) and ^3^__J__(CH) coupling constants of selected saturated nitrogen heterocyclic molecules containing the acetylenic moiety have been determined. These NMR parameters have also been determined for the corresponding __N__‐oxides
## Abstract The carbon‐13 NMR spectra of some __N__‐(2‐ or 4‐nitrophenyl) tertiary amines and their corresponding __N__‐oxides have been analysed. These __N__‐oxides undergo thermal rearrangement to __O__‐arylhydroxylamines, for which the ^13^C NMR spectral assignments were also carried out. The __
The reactions of [N 3 P 3 (dobp) 2 Cl 2 ] and [N 3 P 3 (dobp)Cl 4 ] with revealed that the complexation of the N atom of one 4oxypyridine ligand by the W(CO) 5 fragment has a a mixture of HOC 5 H 4 N-4 and K 2 CO 3 in acetone give the cyclotriphosphazenes [N 3 P 3 (dobp) 2 (OC 5 H 4 N-4) 2 ] and [N