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Ultrasound-assisted synthesis of Z and E stilbenes by Suzuki cross-coupling reactions of organotellurides with potassium organotrifluoroborate salts
(Elsevier B.V., 2006-06-12)
Palladium (0)-catalyzed cross-coupling reactions between potassium aryl- and vinyltrifluoroborate salts and aryl- and vinylic tellurides proceeds readily to afford the desired stilbenes in good to excellent yields. Stilbenes ...
Exploration of mild copper-mediated coupling of organotrifluoroborates in the synthesis of thiirane-based inhibitors of matrix metalloproteinases
(Pergamon-Elsevier Science Ltd, 2011-05)
The copper-mediated and non-basic oxidative cross-coupling of organotrifluoroborates with phenols was applied to elaboration of the structures of thiirane-based inhibitors of matrix metalloproteinases. By revision of the ...
Synthesis of unnatural cyclitols via a combined enzymatic-palladium catalysis approach
(ELSEVIER SCIENCE SA, 2008)
The Suzuki-Miyaura cross-coupling reaction of a hydroxylated vinyl bromide obtained by a chemoenzymatic approach with a diverse range of potassium organotrifluoroborates has been accomplished catalyzed by Pd(PPh(3))(4) in ...
Palladium-catalyzed oxidative homocoupling of potassium alkenyltrifluoroborates: synthesis of symmetrical 1,3-dienes
(PERGAMON-ELSEVIER SCIENCE LTD, 2009)
Herein, we describe a convenient method for the synthesis of symmetrical 1,3-dienes employing an oxidative palladium-catalyzed homocoupling of potassium alkenyltrifluoroborates providing products in good yields relative ...
Síntese estereosseletiva de calcogenetos vinílicos de configuração E a partir de organotrifluoroboratos vinílicos
(Universidade Federal de Santa MariaBrasilQuímicaUFSMPrograma de Pós-Graduação em QuímicaCentro de Ciências Naturais e Exatas, 2007-02-28)
Não foi possível inserir o abstract.
Estudos visando a síntese total da Isodolastatina H
(Universidade Federal de São Paulo (UNIFESP), 2008-02-27)
This dissertation, are described the study towards to total synthesis of isodolastatin H, a natural peptide ester of dolastatin family with great citotoxicity activity. The main focus in this synthesis, is the construction ...
Palladium-catalyzed oxidative homocoupling of potassium alkenyltrifluoroborates: synthesis of symmetrical 1,3-dienes
(Elsevier B.V., 2009-07-29)
Herein, we describe a convenient method for the synthesis of symmetrical 1,3-dienes employing an oxidative palladium-catalyzed homocoupling of potassium alkenyltrifluoroborates providing products in good yields relative ...
Nucleophilic addition of potassium organotrifluoroborates to chiral cyclic N-acyliminium ions: stereoselective synthesis of functionalized N-heterocycles
(PERGAMON-ELSEVIER SCIENCE LTD, 2008)
The stereoselective nucleophilic addition of potassium aryl- and alkynyltrifluoroborates to cyclic N-acyliminium ion derivatives from N-benzyl-3,4,5-triacetoxy-2-pyrrolidinone, affording the respective 5-substituted ...
Stereoselective synthesis of the dolastatin units by organotrifluoroborates additions to alpha-amino aldehydes
(PERGAMON-ELSEVIER SCIENCE LTD, 2008)
Dolastatin units were synthesized from the 1,2-addition reactions of potassium allyl or crotyltrifluoroborate salts to aldehyde derivatives from natural amino acids. The reactions were carried out in presence of a ...
Adição Nucleofílica de Sais de Potássio de Organotrifluoroboratos à Íons N-Acilimínio
(Universidade Federal de São Paulo (UNIFESP), 2009-06-24)
In this work, we developed a new methodology for the stereoselective acquisition of substituted pyrrolydin-2-ones in the 5 position through the addition of potassium organotrifluoroborate salts to cyclic N-acyliminium ...