Studies of Tertiary Amine Oxides. Part1 15. Carbon - 13 nuclear magnetic resonance spectra of some N-(4-substituted phenyl) piperidine,the corresponding N-oxides,and their thermal-rearrangement product |
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| Authors: | Abdul-Hussain Khuthier Jasim M A Al-rawi Salim Y Hanna |
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| Institution: | Department of Chemistry , College of Science, University of Mosul , Mosul, IRAQ |
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| Abstract: | 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 correlation of N-oxidation effect with substituent constant (σp, σm, σI and σR) has been studied; dual substituent-parameter equation produce better correlation. |
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| Keywords: | MRI dosimetry Proton relaxation times Fluorescence Protein-polymer gel (PIRA) Phantom material Fricke-doped gels |
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