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。