title: Preparation of allyltin reagents grafted on solid support: clean and easily recyclable reagents for allylation of aldehydes.
abstract: The preparation of polymer-supported allyltin reagents was shown to be possible for both unfunctionalized and functionalized allyl units. These reagents were treated with aldehydes in the presence of cerium(III) or indium(III) salts to afford high yields of homoallylic alcohols, practically uncontaminated with organotin residues (less than 5 ppm). Some mechanism aspects are briefly discussed and the potential for regeneration and reuse of these supported reagents is pointed out.
authors.affiliation: Laboratoire de Synthèse Organique, UMR 6513, Faculté des Sciences et des Techniques, Université de Nantes, CNRS, 2 rue de la Houssinière, BP 92208, 44322 Nantes cedex 3, France.
authors.forename: Jean-Mathieu
authors.initials: JM
authors.lastname: Chrétien
authors.forename: Françoise
authors.initials: F
authors.lastname: Zammattio
authors.forename: Delphine
authors.initials: D
authors.lastname: Gauthier
authors.forename: Erwan
authors.initials: E
authors.lastname: Le Grognec
authors.forename: Michaël
authors.initials: M
authors.lastname: Paris
authors.forename: Jean-Paul
authors.initials: JP
authors.lastname: Quintard