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Stereoselective Synthesis of Alkynyl Vinyl Chalcogenides via Horner-Wittig Reaction

Claudio C. Silveira*, Francieli Rinaldi, Rafael C. Guadagnin, Antonio L. Braga
Departamento de Química, Universidade Federal de Santa Maria, 97105-900, Santa Maria, RS, Brazil
Fax: +55(55)32208754; e-Mail: silveira@quimica.ufsm.br;