title: Titanocene(II)-promoted, one-pot, three-component coupling of thioacetals, alkynyl sulfones, and carbonyl compounds: highly stereoselective formation of tert-homopropargyl alcohols.
abstract: Titanocene alkylidene complexes, generated by desulfurizative titanation of thioacetals with Cp2Ti[P(OEt)3]2, reacted with alkynyl methyl sulfones to produce organotitanium species, which gave tert-homopropargyl alcohols with high diastereoselectivity on treatment with aromatic and alpha,beta-unsaturated ketones.
authors.affiliation: Department of Applied Chemistry, Graduate School of Engineering, Tokyo University of Agriculture and Technology, Koganei, Tokyo 184-8588, Japan. takeda-t@cc.tuat.ac.jp
authors.forename: Takeshi
authors.initials: T
authors.lastname: Takeda
authors.forename: Maiko
authors.initials: M
authors.lastname: Ando
authors.forename: Takenori
authors.initials: T
authors.lastname: Sugita
authors.forename: Akira
authors.initials: A
authors.lastname: Tsubouchi