RT journal article T1 Titanium carbenoid-mediated cyclopropanation of allylic alcohols: selectivity and mechanism A1 Durán Peña, María Jesús A1 Botubol Ares, José Manuel A1 R. Hanson, J. A1 Hernández Galán, Rosario A1 González Collado, Isidro A2 Química Orgánica AB A new method for the chemo- and stereoselective conversion of allylic alcohols into the corresponding cyclopropane derivatives has been developed. The cyclopropanation reaction was carried out with an unprecedentedtitanium carbenoid generated in situ from Nugent’s reagent, manganese and methylene diiodide. The reaction involving the participation of an allylic hydroxyl group, proceeded with conservation of the alkene geometry and in a high diastereomeric excess. The scope, limitations and mechanism of this metal-catalysed reaction are discussed. PB The Royal Society of Chemistry YR 2015 FD 2015 LK http://hdl.handle.net/10498/20589 UL http://hdl.handle.net/10498/20589 LA eng DS Repositorio Institucional de la Universidad de Cádiz RD 21-sep-2026