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Regioselectivity of the nucleophilic additions and substitutions of 3-(4ʹ,4ʹ-dimethyl-2ʹ-oxazolinyl)pyridine by organolithium compounds
(1978)
Procedures for preparing 3-(4',4'-dimethyl-2'-oxazolinyl)pyridine and 4-(4',4'-dimethyl-2'-oxazolinyl)pyridine were developed. The nucleophilic heteroaromatic addition reactions of 3-(4',4'~ dimethyl-2'-oxazolinyl)pyridine ...
Formation and selected reactions of some binuclear oxygen complexes
(1977)
Chelate formation and amide deprotonation reactions of 1:1 cobaltous complexes of glycyl-L-histidine, glycylhistamine, glycyl-L-aspartic acid, L-histidyl-L-histidine, L-histidylglycine, and L-aspartylglycine have been ...
Catalysis of [beta]-elimination of amino acids by pyridoxal and metal ions
(1978)
The kinetics and equilibrium measurements of a-amino acids have been investigated, under β-elimination conditions, in the presence of pyridoxal with and without catalytic metal ions. The nmr technique was applied to several ...
Electronic structure of peroxo and superoxo polyamine cobalt (III) complexes
(1978)
Electronic spectra of two mononuclear cobalt(III) superoxides, [Co(CN)₅O₂]³⁻ and [Co(s-Me₂en)₂0₂Cl] ⁺ where s-Me₂en is N,N'-dimethylethylenediamine, have been studied. An unusually low intensity for the low energy MLCT ...
Interactions and catalysis in normal and reversed micellar systems
(1976)
Rate constants for the mutarotation of a-D-giucose and B-D-glucose in dipolar aprotic solvent: N,N-dimethylacetamide (DMAC) in the presence of dodecylammonium propionate is greater by a factor of 2,500 for α-anomer and ...
Chemical fixation of dinitrogen under mild conditions
(1978)
Chemical fixation of dinitrogen has been performed under mild conditions in homogeneous and heterogeneous systems. In heterogeneous system electron donor-acceptor complexes of iron phthalocyanine, ruthenium phthalocyanine, ...
The Diels-Alder reactions of trialkyl 3-phosphonoacrylates
(1976)
A preparative separation of the cis- and transtrimethyl 3-phosphonoacrylates was accomplished by High Speed Liquid Chromatography (HSLC), The trans-trimethyl 3-phosphonoacrylate was treated with cyclopentadiene to yield a ...
Structure and reactivity of sulfur-containing molecules adsorbed on magnesium oxide
(1976)
Sulfur dioxide was photochemically oxidized to SO₃⁻ on the surface of magnesium oxide in the presence of adsorbed water vaopor and oxygen or nitrous oxide. Water reacted with adsorbed SO₂ to increase the concentration of ...
Proton nuclear magnetic resonance and fluorescence spectroscopic investigations of normal and reversed micellar systems
(1976)
Acetophenone and benzophenone are solubilized by micellar hexadecyltrimethylammonium bromide (CTAB), hexadecylpyridinium chloride (CPyCl), sodium dodecyl sulfate (NaLS), 3-(dimethyldodecylcammonio)propane-l-sulfonate ...
An approach to the synthesis of mitomycin
(1978)
The use of 1,8-dihydroazocines, prepared from cycloaddition reactions of activated acetylenes with 1,2-dihydropyridines, as synthons for the preparations of mitomycin was explored. Our specific aim was to test the ability ...