title: Synthesis and characterization of pentaerythritol-derived oligoglycol and their application to catalytic Wittig-type reactions.
abstract: Several pentaerythritol-derived oligoglycols 1 with free hydroxyl groups are readily prepared by a convergent approach. Quantitative (13)C NMR proves to be an efficient tool for the characterization of oligoglycols. The corresponding telluride of oligoglycol 17 is synthesized and used as a good catalyst for Wittig-type reactions in preparing both disubstituted and trisubstituted olefins in good to high yields.
authors.affiliation: State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, 354 Fenglin Lu, Shanghai 200032, China.
authors.forename: Kai
authors.initials: K
authors.lastname: Li
authors.forename: Li
authors.initials: L
authors.lastname: Ran
authors.forename: Yi-Hua
authors.initials: YH
authors.lastname: Yu
authors.forename: Yong
authors.initials: Y
authors.lastname: Tang