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The kinetics of the reduction of the lipophilic quinone avarone by n-alkyl-1,4-dihydronicotinamides of various lipophilicities
(Serbian Chemical Soc, Belgrade, 1999)
Several NADH model compounds, N-alkyl-1,4-dihydronicotinamides, some of them possessing amphiphilic properties, have been synthesized, and the kinetics of their reaction with a biologically active liphophilic quinone, ...
Cation-pi interaction with transition-metal complex as cation
(Elsevier Science Bv, Amsterdam, 1999)
A novel type of cation-pi interaction, where a transition-metal complex cation interacts with a pi-system, is predicted here. The theoretical calculations on the [Co(NH3)(6)](3+)-C6H6 system presented demonstrate that a ...
Sesquiterpene lactones from the Yugoslavian wild growing plant families Asteraceae and Apiaceae
(Serbian Chemical Soc, Belgrade, 1999)
Semisynthesis of Taxol (R): an improved procedure far the isolation of 10-deacetylbaccatin III
(Serbian Chemical Soc, Belgrade, 1999)
From the needles of domestic yew, (Taxus baccata), 10-deacetylbaccatin III (10-DAB) call be isolated in quantities of up to 297 mg per kg of fresh needles. Additional quantities of 10-DAB call be obtained from the extract ...
Guaianolides from Centaurea nicolai: antifungal activity
(Pergamon-Elsevier Science Ltd, Oxford, 1999)
A new guaianolide, 3-deacetyl-9-O-acetylsalograviolide A, along with four known closely related lactones, salograviolide A, 9-O-acetylsalograviolide A, kandavanolide and salograviolide B were detected in the aerial parts ...
New radical reactions of S-alkoxycarbonyl xanthates. Total synthesis of (+/-)-cinnamolide and (+/-)-metlhylenolactocin
(Pergamon-Elsevier Science Ltd, Oxford, 1999)
Irradiation with visible light of S-alkoxycarbonyl xanthates derived from various alcohols gives rise to alkoxycarbonyl radicals with bifurcate reactivity: loss of carbon dioxide leads to deoxygenated derivatives (i.e. ...
Synthesis and characterization of sym-cis- and unsym-cis- (ethylenediamine-N,N '-di-3-propionato)cobalt(III) complexes with symmetrical N,N '-substituted diamines
(Marcel Dekker Inc, New York, 1999)
A series of octahedral sym-cis and unsym-cis cobalt(III) complexes involving tetradentate ethylenediamine-N,N'-di-3-propionate ion (eddp) and symmetrical diamines, [ethylenediamine (en), N,N'-dimethylethylenediamine (dmen) ...
Crystal and molecular structure of five coordinate copper(II) complex with 2,6-bis[1-(methoxycarbonylmethyl-hydrazono)ethyl] pyridine
(Kluwer Academic/Plenum Publ, New York, 1999)
The title compound was obtained by a template synthesis from 2,6-diacetylpyridine, ethylhydrazinoacetate and CuCl2 . 2H(2)O (molar ratio 1 : 2 : 1, in methanol), and its structure has been determined by single-crystal X-ray ...
Theoretical studies of inorganic and organometallic reaction mechanisms 13: Methane, ethylene, and acetylene activation at a Cationic Iridium Center
(ACS Symposium Series / American Chemical Society, 1999)
The oxidative-addition/reductive-elimination (OA/RE) reactions of methane, ethylene and acetylene with the CpIr(PH3)(CH3)+ complex are investigated by ab initio methods and density functional theory (DFT). The calculated ...
Ring closure reaction of 4-tert-butyl-4-penten-1-ol with electrophilic reagents
(Natl Inst Science Communication, New Delhi, 1999)
The reaction of 4-tert-butyl-4-penten-1-ol 3 with some electrophilic reagents (such as mineral acids, mercuric acetate, peracids) has been investigated. It is found that in the acid (H2SO4) catalysed reaction of 3, the ...