title: cis-Vinylphosphonates and 1,3-butadienylphosphonates by zirconation of 1-alkynylphosphonates.
abstract: [structure in text] Addition of "zirconocene" to 1-alkynylphosphonates gives three-membered zirconacylces that can be hydrolyzed to cis-vinylphosphonates or further reacted with alkynes/hydrolysis to give substituted (Z,E)- and (E,E)-1,3-butadienylphosphonates.
authors.affiliation: Department of Medicinal Chemistry and Natural Products, School of Pharmacy, Hebrew University in Jerusalem, Jerusalem 91120, Israel.
authors.forename: A A
authors.initials: AA
authors.lastname: Aziz Quntar
authors.forename: M
authors.initials: M
authors.lastname: Srebnik