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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 ...
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 ...
The synthesis and characterization of facial and meridional isomers of unsym-cis-(ethylene diamine-N,N '-di-3-propionato)cobalt(III) complexes with natural aliphatic alpha-amino acids containing oxygen and sulfur
(Marcel Dekker Inc, New York, 1999)
In the reaction of sodium unsym-cis-(ethylenediamine-N,N'-di-3-Dropionato)(carbonato)cobaltate(III) dihydrate and the corresponding amino acid (S-serine, S-threonine, S-cysteine and R,S-methionine) at 70 degrees C, both ...
Copper(II) complexes of usnic acid condensation products and their antibacterial activities
(Marcel Dekker Inc, New York, 1998)
The complexes of Cu(II) and condensation products of usnic acid with the acyl hydrazides of alpha-naphthoic, caprylic and oxamic acid, as well as the-derivative of usnic acid with thiosemicarbazide have been synthesized ...
Classification tools based on artificial neural networks for the purpose of identification of origin of organic matter and oil pollution in recent sediments
(Inst Lebensmitteltechnologie Analytische Chemie, Freising-Weihenstephan, 1998)
The distinction between autochthonous, and oil-like origin of organic matter in geological sediments can be performed on the basis of n-alkane abundance and distribution patterns, determined by gas chromatography, or on ...
n-alkane distribution as a tool in the identification of organic type pollution in river sediments
(Inst Lebensmitteltechnologie Analytische Chemie, Freising-Weihenstephan, 1998)
An attempt was made to apply n-alkane distribution parameters in the identification of various organic matter pollution. Comparing the results of GC-analyses of n-alkanes in sewage-polluted river sediments with unpolluted ...
Regioselective synthesis and spectral characterization of ethyl (Z)- and (E)-2-alkylidene-4-oxothiazolidine-5-acetate derivatives. Solvent effects on the Z-E isomerization
(Pergamon-Elsevier Science Ltd, Oxford, 1998)
The title compounds containing an exocyclic double bond of exclusively the Z-configuration were prepared in anhydrous ethanol by the regioselective base catalyzed reaction of diethyl 2-mercaptobutanedioate with nitrile ...
X-ray crystal structure of 10 beta-hydroxy-4 beta,5 beta P-epoxyestr-1-en-3,17-dione and antitumor activity of its congeners
(Mdpi Ag, Basel, 1999)
Based on the biological properties of epoxyquinols from natural sources, the title compound was synthesised as a potential antitumor agent. Its molecular structure was partially confirmed by NMR studies. The detailed ...
3-carbomethoxy fentanyl: Synthesis, pharmacology and conformational analysis
(Walter De Gruyter Gmbh, Berlin, 1998)
The synthesis of a novel analogue of fentanyl, 3-carbomethoxy fentanyl or "iso-carfentanil" has been accomplished in five steps, by simple and efficient route, starting from phenethyl amine and methyl acrylate. Both (+/-) ...