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Synthesis of substituted alpha,beta-unsaturated delta-lactones from vinyl tellurides
(PERGAMON-ELSEVIER SCIENCE LTD, 2011)
A new approach for the synthesis of alpha,beta-unsaturated delta-lactones, a unit present in many natural products with interesting biological activities is described. The approach was based on the use of a vinyl telluride, ...
Synthesis of 2-diphenylphosphinoyl-3,5-diaryl-3,4-dihydro-2H-telluropyrans by reaction of chalcones with bis[(diphenylphosphinoyl)methyl]telluride
(Pergamon-Elsevier Science Ltd, 2010-08)
The NaH-promoted tandem Michael addition/intramolecular Wittig-Horner reaction of bis[(diphenylphosphinoyl) methyl]telluride with chalcones stereoselectively afforded trans-2-diphenylphosphinoyl-3,5-diaryl-3,4-dihydro- ...
Coupling of vinylic tellurides with alkynes catalyzed by palladium dichloride: Evaluation of synthetic and mechanistic details
(Amer Chemical SocWashingtonEUA, 2004)
Novas metodologias na síntese de teluretos vinílicos funcionalizados e estudo da reatividade de compostos 2-halogeno-selenofenos.
(Universidade Federal de Santa MariaBrasilQuímicaUFSMPrograma de Pós-Graduação em QuímicaCentro de Ciências Naturais e Exatas, 2005-09-05)
Não foi possível inserir o abstract.
Mechanistic aspects of the isomerization of Z-vinylic tellurides double bonds in the synthesis of potassium Z-vinyltrifluoroborate salts
(BEILSTEIN-INSTITUT, 2008)
Through direct transmetalation reaction of Z-vinylic tellurides with nBuLi was observed the unexpected isomerization of double bonds leading to potassium E-vinyltrifluoroborates salts in low to moderate yields. Using EPR ...
Palladium-catalyzed cross-coupling of vinylic tellurides and potassium vinyltrifluoroborate salt: synthesis of 1,3-dienes
(Elsevier B.V., 2006-07-17)
Here we report an ultrasound-assisted synthesis of stereodefined 1,3-dienes by Suzuki-Miyaura cross-coupling reactions of vinylic tellurides and potassium beta-styryl trifluoroborate salt. (c) 2006 Elsevier B.V. All rights ...
Synthesis of alpha,beta-unsaturated aryl esters via Heck reaction of unsymmetrical aryl tellurides
(PERGAMON-ELSEVIER SCIENCE LTDInglaterra, 2009)
Chemoselective cross-coupling Suzuki-Miyaura reaction of (Z)-(2-chlorovinyl)tellurides and potassium aryltrifluoroborate salts
(PERGAMON-ELSEVIER SCIENCE LTD, 2008)
An ultrasound-assisted synthesis of functionalized vinylic chlorides is described by palladium-catalyzed cross-coupling reaction of potassium aryltrifluoroborate salts and (Z)-2-chloro vinylic tellurides. This procedure ...
Mechanistic aspects of the isomerization of Z-vinylic tellurides double bonds in the synthesis of potassium Z-vinyltrifluoroborate salts
(Beilstein-institut, 2008-02-05)
Through direct transmetalation reaction of Z-vinylic tellurides with nBuLi was observed the unexpected isomerization of double bonds leading to potassium E-vinyltrifluoroborates salts in low to moderate yields. Using EPR ...