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Wiley-VCH Verlag, ChemInform, 21(34), 2003

DOI: 10.1002/chin.200321064

Elsevier, Tetrahedron Letters, 9(44), p. 1779-1781

DOI: 10.1016/s0040-4039(03)00098-4

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Sonogashira Cross-Coupling Reaction of Organotellurium Dichlorides with Terminal Alkynes.

Journal article published in 2003 by Antonio L. Braga ORCID, Diogo S. Luedtke, Diogo S. Lüdtke ORCID, Fabrı́cio Vargas, Ricardo K. Donato, Claudio C. Silveira, Hélio A. Stefani, Gilson Zeni
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Abstract

The Sonogashira cross-coupling reaction of vinylic and heteroaromatic tellurium dichlorides has been explored, yielding the corresponding enynes and 2-alkynyl substituted heteroaromatic compounds. The reaction was carried out with PdCl2/CuI as catalysts and triethylamine as base, using methanol as solvent. The reaction proceeded under mild conditions and the cross-coupled products were obtained in good yields and in a stereoconservative manner.