title: Sulfoxide-directed intramolecular [4 + 2] cycloadditions between 2-sulfinyl butadienes and unactivated alkynes.
abstract: Sulfinyl dienynes undergo thermal and catalyzed IMDA cycloadditions, often at room temperature, to produce cyclohexa-1,4-dienes with good yields and high selectivities. Additionally, the products preserve a synthetically useful vinyl sulfoxide functionality. The selective manipulation of the double bonds in the cycloadducts has also been examined in this work.
authors.affiliation: Instituto de Química Orgánica General, CSIC, Juan de la Cierva, 3, 28006 Madrid, Spain. iqofp19@iqog.csic.es
authors.forename: Roberto
authors.initials: R
authors.lastname: Fernández de la Pradilla
authors.forename: Mariola
authors.initials: M
authors.lastname: Tortosa
authors.forename: Esther
authors.initials: E
authors.lastname: Castellanos
authors.forename: Alma
authors.initials: A
authors.lastname: Viso
authors.forename: Raquel
authors.initials: R
authors.lastname: Baile