Search
Now showing items 1-10 of 26
A study of the scope of metal-catalyzed allylic amination of olefins and an approach towards solid phase synthesis of unsymmetrical tertiary phosphines.
(1998)
A general route for the synthesis of N-alkoxy-N-alkylamidine hydrochlorides by reaction of organic nitriles with (N-alkyl-N-alkoxyammine)dimethylaluminum chloride (chapter 4, 26) is described.
Investigations into the neurodegenerative mode of action of dihydroxytetrahydroquinoline derivatives.
(1997)
Preliminary testing of a dihydroxyguinoline derivative, 3-amino-6,7-dihydroxy-1,2,3,4-tetrahydroquinoline (6,7-ADTQ), showed substantial serotonergic depletion in mouse whole brain, but with only moderate selectivity. This ...
Sequence and analysis of approximately 0.5 mega-basepair of the DiGeorge Syndrome Critical Region in human chromosome 22 band q11 and a syntenic mouse BAC.
(1997)
From the data collected, part of the genomic sequence of the human clathrin heavy chain like gene (CLTCL), entire genomic sequence of the human homolog of yeast repressors of histone gene transcription HIR1 and HIR2 (HIRA), ...
Part I. Kinetic studies of the complexation reactions of nickel(II) with hydroxamic acids in aqueous medium. Part II. Kinetic studies of the formation and dissociation reactions of ionomycin and 2,6-dimethylheptane-3,5-dione with nickel(II) and magnesium(II) in 80 percent methanol-water medium.
(1997)
The second part of the study involved the reactions of nickel(II) and magnesium(II), with the ionophore ionomycin and the model compound 2,6-dimethyl-3,5-heptanedione (DMHD). A detailed analysis of the kinetic data for ...
An investigation comparing traditional recitation instruction to computer tutorials which combine three-dimensional animation with varying levels of visual complexity, including digital video in teaching various chemistry topics.
(1998)
This study examines the effect of increasing the visual complexity used in computer assisted instruction in general chemistry. Traditional recitation instruction was used as a control for the experiment. One tutorial ...
Electrode materials for lithium rechargeable batteries: Synthesis, spectroscopic studies and electrochemical performance.
(1997)
Three distinct $\rm Li\sb{x}V\sb2O\sb5$ phases, $\delta, \ \varepsilon, $ and $\gamma$-$\rm Li\sb{x}V\sb2O\sb5, $ were obtained through a chemical intercalation reaction and solid state reactions. Infrared and Raman spectra ...
Synthesis and characterization of polynitro-[2.2]paracyclophanes, a novel xylylene polymer, and poly(p-phenylene sulfoxide).
(The University of Oklahoma., 1999)
A less closely related polymer, poly(p-phenylene sulfoxide) (PPSX) (18) was synthesized by a novel homogenous oxidation of poly(p-phenylene sulfide) 17 with neat fuming nitric acid, fuming nitric acid in trifluoroacetic ...
Characterization of pure and phase-stabilized sodium phosphate.
(1998)
This work illustrates the necessity of using a variety of techniques when characterizing these systems, which undergo complex structural changes that cannot be completely characterized using a single technique. The XRD ...
The synthesis of group IV metallocene dichlorides with variable sterics, conformational mobility and geometric shapes.
(1997)
New chiral doubly bridged bis(tetrahydroindenyl)zirconium dichloride 285 has been synthesized from chiral doubly bridged 284 in excellent yield. These complexes give access to rigid ansa-bis(indenyl)- and ansa-bis(tetrah ...
Ferric enterobactin transport through FepA in Escherichia coli: From hydrophobic stacking to charge interactions.
(1999)
The site-directed alanine substitution studies revealed that three aromatic residues in the central region of FepA, Y260, Y272, and F329, are involved in the binding and transport of ferric enterobactin. A significant ...