title: Copper iodide-catalyzed cyclization of (Z)-chalcogenoenynes.
abstract: We present here our results of the efficient copper-catalyzed cyclizations of chalcogenoenynes and establish a route to obtain 3-substituted chalcogenophenes in good to excellent yields. In addition, the obtained chalcogenophenes were readily transformed to more complex products using the palladium-catalyzed cross-coupling reactions with boronic acids to give Suzuki-type products in good yields.
authors.affiliation: Laboratório de Síntese, Reatividade, Avaliação, Toxicológica e Farmacológica de Organocalcogenios-CCNE-UFSM, 97105-900-Santa Maria, RS, Brazil.
authors.forename: André L
authors.initials: AL
authors.lastname: Stein
authors.forename: Diego
authors.initials: D
authors.lastname: Alves
authors.forename: Juliana T
authors.initials: JT
authors.lastname: da Rocha
authors.forename: Cristina W
authors.initials: CW
authors.lastname: Nogueira
authors.forename: Gilson
authors.initials: G
authors.lastname: Zeni