Insertion reactions of organic anhydrides into the M-O bond of (CuOBu)-Bu-t and Sb(OMe)(3)

摘要

The synthesis and structural characterization of the copper salts [Cu-2(2-Boc-benzoate)(4)(dme)(2)] (1), [Cu(2-Boc-benzoate)(2)(tmeda)] (2), [Cu-2(2-Boc-benzoate)(2)(dppm)] (3), [Cu(2-Boc-nicotinate)(PPh3)(2)] (4), [Cu-2{2-Boc-5,6-anhydride-naphthylcarboxylate)(2)(dppm)(2)] (5) [dme = 1,2-dimethoxyethane, dppm = bis(diphenylphosphino)methane, tmeda = N,N'-tetramethylethylenediamine, Boc = tert-butoxycarbonyl] prove that cyclic organic anhydrides and dianhydrides readily insert into the Cu-O bond of [(CuOBu)-Bu-t] forming carboxylate ligands with ester functionalities in the ligand periphery. [Sb(CO2Ph-o-CO2Me)(2)(OMe)(tmeda)] (6) was synthesised by insertion reaction of Sb(OMe)(3) with phthalic anhydride. (c) 2007 Elsevier B.V. All rights reserved.