Titanium complexes based on pyridine containing dialcohols: Effect of a ligandстатья
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Дата последнего поиска статьи во внешних источниках: 9 июня 2016 г.
Аннотация:Substituted 2,6-bis(hydroxyalkyl)pyridines, H2L, 1-3 (2,6-Py(CH2(X)OH)(CH2(Y)OH), X = Y = cyclo-C6H10, 1; X = Y = 1-Ad, 2; X = CPh2, Y = CH2CPh2, 3), were used as ligands for the synthesis of titanium(IV) complexes, (i-PrO)2Ti(L), 1a-3a. On the contrary, application of related dialcohol based on 2,2′-bipyridine, H2L′, 5 (2,2′-bipy-6,6′-(CH2Ph2OH)2), resulted in titanyl complex, (L′)Ti=O, 6. The molecular structure of 6 was investigated by X-ray analysis. Compounds 1a and 3a were tested as initiators in ring-opening polymerization of l-lactide and ε-caprolactone showing moderate activity.