A New Robust and Versatile Tetradentate Linker for Amides To be Cleaved under Mild Conditions by Unusual Complexation of the Amide Nitrogen to Cu<sup>++</sup>
作者:Rolf A. Kramer、Manuel C. Bröhmer、Nina V. Forkel、W. Bannwarth
DOI:10.1002/ejoc.200900291
日期:2009.9
The concept of weakening amide bonds by the rather unusual forced complexation of nitrogen to Cu++ is not limited to tridentate ligands and was extended in this work to tetradentate ligands as well. The use of cyclic tetradentate ligands was to no avail, but an open-chain and more-flexible tetradentate ligand allowed mild cleavage by methanolysis after complexation. The principle was applied to the