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Showing 1 to 12 of 12 for “"Triphenylmethyl"”.
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I. Dissociation and aromatization of a semibenzene. Reactions of triphenylmethyl and methyl isobutyryl radicals. II. The chemistry of alpha- and beta- azo radicals
… be regarded as the para recombination product of triphenylmethyl and methyl isobutyryl radicals (5), affords exactly these intermediates on thermolysis or, inefficiently, on direct photolysis. Whereas thiophenol or triplet 9-fluorenone aromatize 1, thermolysis in the presence of 1,4-cyclohexadiene …
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A Synthesis and Characterization of D-Lyxo-Hexos-5-Ulose From D-Mannose.
… furanoside was converted to its crystalline 6-0-triphenylmethyl ether which in turn was oxidized at the C-5 hydroxyl group with either methylsulfoxide/acetic anhydride or ruthenium tetraoxide/sodium periodate to methyl 2,3-0-isopropylidene-6-0-triphenylmethyl-α-D-lyxo-hexos-5-ulose. Mild acidic …
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Development and Mechanistic Characterization of Novel Small Molecules as Cancer Therapeutics
… apoptosis. Chapters 3 and 4 investigate novel triphenylmethyl containing anticancer agents and compare their mechanisms of action to known agents. The development of lactate dehydrogenase-A (LDH-A) inhibitors as a novel anticancer strategy is discussed in Chapter 5. In Chapter 6, the mode of …
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Synthesis, Characterization And Reactivity Studies Of Nickel Complexes Supported By A Phosphinimine-Based Pincer Ligand
… complex to formally abstract a sulfur atom from triphenylmethyl thiol with the concomitant formation of triphenylmethane. The formation of a terminal nickel sulfide [(1,2-C6H4N=PPh2Me)2N]Ni=S as an intermediate was proposed. Experimental results suggested that the reaction mechanism involved an …
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Chemical Reactivity and Regioselectivity of Trimetallic Nitride Endohedral Metallofullerenes
… were obtained when Ih Sc3N@C80 reacted with N-triphenylmethyl-5-oxazolidinone, as characterized by NMR spectroscopy and X-ray crystallography. The kinetically favored 6,6-ring junction adduct was converted to the thermodynamic product, the 5,6-ring junction adduct, upon thermal equilibration. …
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Probing Organometallic Reactions With 19F NMR
… reactions of eleven metallocene dimethyls with triphenylmethyl chloride were highly selective (> 95%) with the five most electron-deficient metallocenes studied. Two other examples showed good selectivity on an NMR scale but could not be isolated from the 1,1,1-triphenylethane byproduct. …
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Bio-inspired iron and cobalt complexes featuring a secondary coordination sphere: ligand design, complexation, and modeling of enzymatic processes
… the use of the stable C-centered radical, triphenylmethyl radical (Gomberg’s dimer). It was found that one of the iron(III)-hydroxo complexes was capable of performing a rapid hydroxylation of the radical substrate, while the other required the presence of adventitious water for …