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Separation and characterisation of Populus canadensis pollen antigens
(Periodicum Biologorum, 1990)
Radical annulation methodology. 2-Vinylcyclopentane derivative formation by a 3 + 2 cycloaddition reaction
(Tetrahedron Letters, 1990)
By thermally or photolytically induced decomposition of O-acyl derivatives of N-hydroxypyridine-2-thione or other thiohydroxamic esters, in the presence of an excess of electron deficient olefins, 2-vinylcyclopentane ...
Study of heterogeneous equilibria in saturated aqueous solutions of some 7-chloro-1,4-benzodiazepines
(Analyst, 1990)
Acid-base equilibria in heterogeneous and homogeneous systems of some sparingly soluble benzodiazepines (diazepam, prazepam, chlordiazepoxide and medazepam) were investigated in aqueous solution and the corresponding ...
Biological activities of avarol derivatives, 1. Amino derivatives
(American Chemical Society, 1990)
Nine amino derivatives, compounds 3-11. of avarone were synthesized. Their antibacterial and cytotoxic activities are evaluated, and the results of a prescreen for antitumor effects are reported.
Oil/oil correlation based on gas chromatographic/mass spectrometric analysis of polycyclic biomarkers
(Rapid Communications in Mass Spectrometry, 1990)
Polycyclic biomarkers such as steranes, diasteranes and tri‐, tetra‐ and pentacyclic terpanes in the hydrocarbon fraction of oils were studied by gas chromatographic/mass spectrometric (GC/MS) analysis in order to correlate ...
Radical cyclization reactions. Cyclopropane ring formation by 3-exo-cyclization of 5-phenylthio-3-pentenyl radicals
(Tetrahedron Letters, 1990)
Free radical cyclopropane ring closure was accomplished by thermal decomposition of thiohydroxamic esters of 6-phenylthio-4-hexencic acids. When the reaction was performed in the presence of acrylonitrile; an addition/cy ...
Reaction of formaldehyde with mer-(ethylenediamine)(glycylglycinato)nitrocobalt(III). Crystal structure of mer-(ethylenediamine)[N-((5,6-dihydro-5,5-bis(hydroxymethyl)-1,3-oxazin-4-yl)- carbonyl)glycinato]nitrocobalt(III) trihydrate
(Inorganic Chemistry, 1990)
Three new compounds result from the reaction of mer-[Co(NH2CH2CONCH2CO2)NO 2(en)] with formaldehyde in alkaline aqueous solution: mer-(ethylenediamine)[N-((5,6-dihydro-5,5-bis(hydroxymethyl)-1,3-oxazin-4-yl) carbonyl)gly ...
Organic geochemical study of the "W" oil-gas field in the Yugoslav part of the Pannonian basin
(Organic Geochemistry, 1990)
The naphthenic crude oil from the "W" oil-gas field differs from almost all other, paraffinic base oils discovered until now in the Yugoslav part of the Pannonian basin. In order to explain this difference, some geological ...
Simplified preparation of 16-dehydropregnenolone acetate
(Synthesis, Stuttgart, 1990)
Cyclopentane ring formation in the cycloaddition reaction of 3-alkenyl radicals to radicophilic olefins
(Tetrahedron, 1990)
Regioselective additions of 3-alkenyl radicals (10 and 20) to electron deficient olefinic bonds (7 and 17), followed by intramolecular 5- exo-cyclization and repeated addition to radicophilic double bonds were investigated ...