Buscar
Mostrando ítems 1-10 de 115
Tellurium tetrachloride: an improved method of preparation
(PERGAMON-ELSEVIER SCIENCE LTD, 2008)
An efficient and practical synthesis of tellurium tetrachloride from elemental tellurium and sulfuryl chloride is described. (C) 2008 Elsevier Ltd. All rights reserved.
A new approach to organomanganese compounds: the tellurium/manganese exchange reaction
(PERGAMON-ELSEVIER SCIENCE LTD, 2010)
Diorganomanganese compounds react with aryl, vinyl, and alkynyl tellurides in a tellurium/manganese exchange reaction. The new mixed organomanganese reagents react selectively with electrophiles. (C) 2010 Published by ...
Tellurium in organic synthesis: a general approach to buteno- and butanolides
(PERGAMON-ELSEVIER SCIENCE LTDOXFORD, 2012)
The naturally occurring butanolides (-)-blastmycinolactol, (+)-blastmycinone, (-)-NFX-2, (+)-anti-mycinone as well as the four stereoisomers of the butenolide Acaterin were prepared in high enantiomeric purity using ...
CdTe electrodeposition and stripping: an electrochemical quartz crystal analysis
(Elsevier Science Sa LausanneLausanneSuíça, 1997)
Facile Synthesis of Tellurium Nanowires and Study of Their Third-Order Nonlinear Optical Properties
(Sociedade Brasileira de Química, 2017-01-01)
We report on the synthesis of single-crystalline tellurium nanowires with different aspect-ratios prepared via facile surfactant-assisted synthesis under mild conditions. Short and long Te nanowires were synthesized by the ...
Surface studies on graphite furnace platforms covered with Pd, Rh and Ir as modifiers in graphite furnace atomic absorption spectrometry of tellurium
(Elsevier, 2015-03)
The main objective of this work is the study of correlations between the efficiency of the distribution of the permanent platinumgroup modifiers Pd, Rh and Ir over the graphite surfacewith the aimof improving analytical ...
Thermal Stabilization of Tellurium in Mineral Acids Solutions: Use of Permanent Modifiers for its Determination in Sulfur by GFAAS
(Elsevier Science, 2006-08)
The aim of this work is the study of the best conditions for thermal stabilization of tellurium in graphite furnaces under different experimental conditions, including highly concentrated nitric and hydrochloric acids ...
Synthesis of selenium- and tellurium-containing nucleosides derived from uridine
(PERGAMON-ELSEVIER SCIENCE LTD, 2009)
The synthesis of selenium- and tellurium-containing nucleosides, derived from uridine is described herein. These compounds were prepared in a concise and short synthetic route in good yields, by nucleophilic substitution ...
A concise enantioselective synthesis of (+)-endo-brevicomin accomplished by a tellurium/metal exchange reaction
(Sociedade Brasileira de Química, 2008)
A homoenolate generated by tellurium/lithium exchange reaction was employed in a straightforward enantioselective synthesis of (+)-endo-brevicomin in 70% yield and 84.4% e.e.
Organotellurides as precursors of reactive organometallics
(TAYLOR & FRANCIS LTD, 2008)
Reaction of organotellurides with easily available organometallics leads to a fast and clean tellurium/metal exchange reaction, allowing the preparation of a range of functionalized organometallics with C-sp(3), C-sp(2), ...