Structurally original oxathioethers macrocycles containing an exocyclic double-bond: synthesis, characterization, reactivity, and coordination
作者:Guillaume Carel、Alina Saponar、Nathalie Saffon、Marc Vedrenne、Stéphane Massou、Gabriela Nemes、Ghassoub Rima、David Madec、Annie Castel
DOI:10.1016/j.tet.2014.06.082
日期:2014.9
New oxathioethers macrocycles have been synthesized and characterized. Each macrocycle consists in structurally defined ether and thioether moieties and an exocyclic double-bond (2a-c) or a hydroxymethyl group (3a-c). Macrocycles (2a-c) have been synthesized by reaction of dianions of thioethers dials (1a-c) with 3-chloro-2-chloromethylprop-1-ene. Their hydroboration/oxidation led to corresponding primary alcohols (3a-c). Structures of compounds (2b) and (3a) have been determined by X-ray diffraction. The reactivity of the hydroxyl group allowed the preparation of oxathioethers macrocycles bearing a polyether chain or a benzyl group (4a,b) and the synthesis of new bicyclic sandwich-type compounds (5a,b). The ability of these functionalized macrocycles to coordinate to palladium has been investigated. (C) 2014 Elsevier Ltd. All rights reserved.