98700-22-2Relevant articles and documents
Multi Electron Ligands, VIII. Connection of the all-trans-1,5,9-Cyclododecatriene System with Additional Donor Groups
Kauffmann, Thomas,Fauss, Waltraud
, p. 2330 - 2342 (2007/10/02)
Nine potential ligands (2 - 10) for transition metals were obtained from the well accessible all-trans-1,5,9-cyclododecatriene (ttt-CDT) by introduction of donor groups.The synthesis was achieved via ttt-3-bromo-CDT (1) and the hitherto unknown ttt-3-iodo-CDT (2).To the contrary, introduction of donor groups via nucleophilic ttt-CDT derivatives was successful in one case only (15). ttt-3-Lithio-CDT (13), obtained by organoelement-Li exchange, revealed to be extremely basic (quick deprotonation of diethyl ether at low temperature).In situ made Ni0 complexes of someof the new ligands failed to oligomerize or polymerize butadiene.