New achiral and chiral NNE heteroscorpionate ligands. Synthesis of homoleptic lithium complexes as well as halide and alkyl scandium and yttrium complexes
作者:Antonio Otero、Agustín Lara-Sánchez、Juan Fernández-Baeza、Emilia Martínez-Caballero、Isabel Márquez-Segovia、Carlos Alonso-Moreno、Luis F. Sánchez-Barba、Ana M. Rodríguez、Isabel López -Solera
DOI:10.1039/b914966j
日期:——
racemic mixtures, (S)-mbpamH (4) as an enantiopure compound, pbptamH (5) and tbptamH (6)] and (ii) stabilization of new homoleptic lithium complexes containing fac-coordinating NNE-donor ligands [LiNNE(H)}2]Cl (E = O, S) (7–10). A series of scandium and yttrium complexes have been prepared by the reaction of MCl3(THF)3 (M = Sc, Y) with the amide or thioamide compounds. Under the appropriate experimental
的反应 双(3,5-二甲基吡唑-1-基)甲烷 (bdmpzm),加入Bu n Li和含烷基或芳基的异氰酸酯或异硫氰酸酯,其中一些是手性试剂,然后用饱和水溶液处理氯化铵 或者 盐酸 在 乙醚 以(i)的形式生成(i)新的异蝎子配体 乙酰胺 或者 硫代乙酰胺化合物[pbpamH(1),tbpamH(2),sbpamH(3)为外消旋混合物,(S)-mbpamH(4)为对映体纯化合物,pbptamH(5)和tbptamH(6)]和(ii)新化合物的稳定化同源的锂含络合物FAC -coordinatingNNE-供体配体 [Li NNE(H)} 2 ] Cl (E = Ø,S)(7–10)。一系列钪 和 钇 配合物是通过以下反应制备的 MCl 3(四氢呋喃)3 (M = SC, ÿ)与酰胺或 硫代酰胺化合物。在适当的实验条件下,单核复合物,即[的MC1 3 κ 3 -NNE(H)}](E = Ø