title: Ring-size-selective enyne metathesis as a tool for desymmetrization of an enantiopure C2-symmetric building block.
abstract: The enantiomerically pure C(2)-symmetrical hexa-1,5-diene-3,4-diol is selectively monopropargylated. The products undergo ring-closing enyne metathesis to give exclusively dihydropyrans as single stereoisomers. An unprotected hydroxy group is identified as the factor controlling the ring-size selectivity.
authors.affiliation: Institut fuer Chemie, Organische Synthesechemie, Universitaet Potsdam, Karl-Liebknecht-Strasse 24-25, D-14476 Golm, Germany. bernd.schmidt@uni-potsdam.de
authors.forename: Bernd
authors.initials: B
authors.lastname: Schmidt
authors.forename: Lucia
authors.initials: L
authors.lastname: Staude