Title: Indium-mediated selective introduction of a 1,3-butadien-2-yl group at the C4-position in 2-azetidinones and application of 1,3-diene-tethered 2-azetidinones in the Diels-Alder reaction.
Journal: Chemistry (Weinheim an der Bergstrasse, Germany) 20070101
Title: Metal-mediated carbonyl-1,3-butadien-2-ylation by 1,4-bis(methanesulfonyl)-2-butyne or 1,4-dibromo-2-butyne in aqueous media: asymmetric synthesis of 3-substituted 3-hydroxy-beta-lactams.
Journal: The Journal of organic chemistry 20020322