title: Highly selective one-pot synthesis of spirophosphoranes exhibiting reversed apicophilicity by oxidation of dianions generated from P-H spirophosphorane.
abstract: [see reaction]. Mild and highly selective one-pot procedures for obtaining phosphoranes that exhibit reversed (O-cis) apicophilicity are described. On the basis of the procedures, O-cis phosphorane bearing an aryl group (R = 2,4,6-tri-i-propylphenyl) could be isolated for the first time; the procedure is also applicable for alkyl derivatives. Particularly effective was the use of I2 as an oxidizing reagent.
authors.affiliation: Department of Chemistry, Graduate School of Science, Hiroshima University, 1-3-1Kagamiyama, Higashi-Hiroshima 739-8526, Japan.
authors.forename: K
authors.initials: K
authors.lastname: Kajiyama
authors.forename: M
authors.initials: M
authors.lastname: Yoshimune
authors.forename: M
authors.initials: M
authors.lastname: Nakamoto
authors.forename: S
authors.initials: S
authors.lastname: Matsukawa
authors.forename: S
authors.initials: S
authors.lastname: Kojima
authors.forename: K
authors.initials: K
authors.lastname: Akiba