- Tuesday, May 1, 2007
- Published at:ASIAN JOURNAL OF CHEMISTRY Volume: 19 Issue: 3 Pages: 1658-1666 Published: MAY-JUN 2007
- Aromatic and heteroaromatic N-methyl-N-(2-pyridyl)-hydrazones 3a-f were synthesized and characterized by elemental analyses, and spectral data. H-1, C-13 NMR and mass spectra supported the formation. of the E-isomer. N-Methyl-N-(2-pyridyl)hydrazone carboxaldehydes can be readily characterized by mass spectrometry. The new hydrazones 3a-h have been screened for antimicrobial activity.
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- Sunday, January 1, 2006
- Published at:Not Found
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An-Najah University Journal for Research - Natural Sciences (A) ISSN: 1727-2114
Volume 20 , 2006, Pages: 207-212
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- Thursday, January 1, 2004
- Published at:Journal of Applied Sciences 4 (2): 193.1 96,2004
- The rates of cleavage of p-chlorotrimethylsilane were measured in various ROH-DMSO meda (R: Me, Et, i-Pr, t-By CF,CH,-HOCH,CH,-) and the results were reported. These results have shown that the rates of cleavage decrease as the mole ratio of ROH increases.
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- Wednesday, January 1, 2003
- Published at:Pakistan Journal of Applied Sciences 3(2): 125-128, 2003
- The nucleophilic cleavage of substituted benzyltrimethyl-silanes in DMSO-Hz0 media using tetraalkylammonium fluoride, TAAF, has been studied. The observed rate constants, pseudo first order rate constants, activation, and thermodynamic parameters have been reported. A mechanism for such cleavage has been proposed. The results fit well Hammett equation. The reaction constant, p! value of (6.7) has been reported. The p value is consistent with a substantial negative charge developing in the transition state.
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- Saturday, January 1, 2000
- Published at:Not Found
- Four highly conjugated laser-sensitive two-photon chromophores (9a; 9b; 9c; 9d) have been synthesized. Each chromophore has been attached to the anti-cancer drug, doxorubcin, to produce the labeled doxorubicins (12a; 12b; 12c; 12d) for imaging the biologic cellular processes.
An-Najah University Journal for Research - Natural Sciences (A) ISSN: 1727-2114
Volume 14 , 2000, Pages: 061-081
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