title: Ortho-Vinylation Reaction of Phenols with Ethyne.
abstract: Phenols were vinylated at the ortho-position with ethyne in the presence of SnCl(4)-Bu(3)N reagent. The reaction was applicable to phenols possessing either electron-donating or electron-withdrawing groups. 2,6-Divinylphenols were synthesized under modified conditions. A reaction mechanism involving carbostannylation of alkynyltin and phenoxytin was discussed.
authors.affiliation: Faculty of Pharmaceutical Sciences, and Department of Chemistry, Graduate School of Science, Tohoku University, Aoba, Sendai 980-8578, Japan, and Department of Physical Chemistry, National Institute of Materials and Chemical Research Agency of Industrial Science and Technology, MITI, Tsukuba, Ibaraki 305-8565, Japan.
authors.forename: Masahiko
authors.initials: M
authors.lastname: Yamaguchi
authors.forename: Mieko
authors.initials: M
authors.lastname: Arisawa
authors.forename: Kenji
authors.initials: K
authors.lastname: Omata
authors.forename: Kuninobu
authors.initials: K
authors.lastname: Kabuto
authors.forename: Masahiro
authors.initials: M
authors.lastname: Hirama
authors.forename: Tadafumi
authors.initials: T
authors.lastname: Uchimaru