Pentaerythritol fragmentation during conversion to a polyamine ligand—isolation of 1,1-bis(2′-aminoethylaminomethyl)-ethene
作者:Young Hoon Lee、Cindy Mora、Ji Young Choi、Jong Chul Byun、Jack M. Harrowfield、Pierre Thuéry、Yang Kim
DOI:10.1016/j.tetlet.2010.07.091
日期:2010.9
The reaction of pentaerythritol tribromide with ethylenediamine under strongly basic conditions leads to the quadridentate ligand 1,1-bis(2-aminoethylaminomethyl)-ethene (2), which is easily purified by formation and chromatographic separation of its Co(III) complex, trans-[Co(2)Cl(2)]Cl center dot H(2)O. (C) 2010 Elsevier Ltd. All rights reserved.