Zobrazeno 1 - 10
of 24
pro vyhledávání: '"Abdul-Hussain Khuthier"'
Publikováno v:
The Journal of Organic Chemistry. 46:3634-3638
Publikováno v:
Inorganica Chimica Acta. 133:47-50
Eighteen olefin (or tert-phosphine)-tert-amine N-oxide platinum(II) complexes of the general formula trans-[PtL(tert-amine N-oxide)Cl2] have been prepared, where L is ethylene, styrene, or triethylphosphine. The tert-amine N-oxides used in the comple
Publikováno v:
Tetrahedron Letters. 21:667-670
Prop-2-ynylic N-oxides rearrange thermally via O-allenyl hydroxylamines to acrolein and an imine. The second rearrangement step, falling in the class of thermal cis -eliminations, is shown with variously 2 H-substituted pargyline N-oxides.
Publikováno v:
Spectroscopy Letters. 21:249-259
Carbotn-13 NHR assignment of eight N-(2,4- dinitrophenyl) amines was achived. She six corresponding N- Oxides and their thermal rearr-angement products were also analyzed. The N-oxidation effect on the carbon-13 chemical shift is discussed.
Publikováno v:
Organic Magnetic Resonance. 14:161-165
Carbon-13 NMR chemical shifts and 1J(CH), 2J(CH) and 3J(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 corresp
Publikováno v:
Spectrochimica Acta Part A: Molecular Spectroscopy. 41:1391-1395
Carbon-13 nuclear magnetic resonance spectra were measured for 16 N-alkyl-C-methyl piperidines and 14 of the corresponding N-oxides. The observed chemical shifts of the ring carbons were analysed in terms of the bulkiness of the N-alkyl substituent.
Publikováno v:
Organic Magnetic Resonance. 18:104-108
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 13C NMR spectral assignments were also
Publikováno v:
The Journal of Organic Chemistry. 52:1710-1713
Des substituants electroattracteurs sont necessaires a la transposition, en position ortho ou para par rapport a la fonction N-O. L'ordre de reactivite dans cette transposition est NO 2 >>CN>COPh>COMe>COOEt>CONH 2 . Mecanisme cyclique intramoleculair
Publikováno v:
Mikrochimica Acta. 92:249-252
A simple, rapid and selective titrimetric procedure for the determination of 0.1–20 mg of aryldialkylamine has been developed. The method is based on the reduction of the aryldialkylamine oxides with iodide in acidic medium. The rate of reaction is
Publikováno v:
Spectroscopy Letters. 22:549-560
The carbon-13 chemical shifts of seven N-(4-substituted phenyl) piperidine; the corresponding N-oxides, and their thermal rearrangement products were analyzed and assigned. The N-oxidation effect on the carbon-13 chemical shift is discussed, a correl