Synthesis, structure, and catalytic activity of rare-earth metal amides with a neutral pyrrolyl-functionalized indolyl ligand
作者:Song Yang、XianCui Zhu、ShuangLiu Zhou、ShaoWu Wang、ZhiJun Feng、Yun Wei、Hui Miao、LiPing Guo、FenHua Wang、GuangChao Zhang、XiaoXia Gu、XiaoLong Mu
DOI:10.1007/s11426-014-5150-7
日期:2014.8
The reactions of neutral pyrrolyl-functionalized indole with rare-earth metal amides [(Me3Si)2N]3RE(µ-Cl)Li(THF)3 produced the rare-earth metal complexes [(Me3Si)2N]2RE([η1:µ-η2-3-(2-(N-CH3)C4H3NCH=N-CH2CH2)C8H5N])(µ-Cl)Li(THF) (RE = Er, Y) having indolyl ligand η1 bonded to rare-earth metal ion and η2 bonded to lithium ion. The catalytic activities of these lanthanide amido complexes for addition of terminal alkynes to aromatic nitriles were explored. Results reveal that these complexes displayed a good catalytic activity for the addition reaction under mild conditions.
中性吡咯基功能化的吲哚与稀土金属氨基[(Me3Si)2N]3RE(µ-Cl)Li(THF)3反应生成了稀土金属络合物[(Me3Si)2N]2RE([η1:µ-η2-3-(2-(N-CH3)C4H3NCH=N-CH2CH2)C8H5N])(µ-Cl)Li(THF) (RE = Er, Y),其中吲哚基配体η1与稀土金属离子结合,η2与锂离子结合。研究了这些锕系金属氨基络合物在温和条件下对末端炔烃与芳香硝基的加成反应的催化活性。结果显示,这些络合物在加成反应中表现出良好的催化活性。