Facile Construction of a Novel Aminoquinazolinate Anionic Ligand through Organolanthanide-Mediated Intermolecular Nucleophilic Addition/Cyclization of Anthranilonitrile

Compounds Cp2Ln[κ3-(4-NH(C8N2H4)(2-NH2C6H4)] [Cp = C5H5; Ln = Er (1), Y (2)] were synthesized by the reaction of Cp2LnNiPr2(THF) with anthranilonitrile, indicating a novel organolanthanide-mediated intermolecular nucleophilic addition/cyclization of anthranilonitrile. To trap the intermediate I, a probe reaction of Cp2ErNiPr2(THF) with anthranilonitrile and carbodiimide has also been investigated.化合物 Cp₂Ln[κ³-(4-NH(C₈N₂H₄)(2-NH₂C₆H₄)] [环戊二烯基（Cyclopentadienyl，Cp）= C₅H₅；Ln为镧系元素，产物1为铒（Er）、产物2为钇（Y）]，通过Cp₂LnNiPr₂(四氢呋喃（Tetrahydrofuran，THF）)与邻氨基苯甲腈（anthranilonitrile）的反应合成。该反应揭示了一种新型的有机镧系化合物介导的邻氨基苯甲腈分子间亲核加成/环化反应。为捕获中间体I，本研究还探究了Cp₂ErNiPr₂(THF)与邻氨基苯甲腈、碳二亚胺（carbodiimide）的探针反应。