Makarov Konstantin, Saha Sayantani, Ghatak Tapas, Fridman Natalia, Eisen Moris S
Schulich Faculty of Chemistry, Technion-Israel Institute of Technology, Technion City 3200008, Israel.
ACS Omega. 2021 May 28;6(22):14692-14700. doi: 10.1021/acsomega.1c01836. eCollection 2021 Jun 8.
A new class of actinide complexes [(L)An(N{SiMe})] (An = Th or U) (- and ) supported by highly nucleophilic seven-membered N-heterocyclic iminato ligands were synthesized and fully characterized by single-crystal X-ray diffraction. These complexes were successfully exploited as powerful catalysts for the addition of alcohols to carbodiimides to yield the corresponding desirable isourea products at room temperature with short reaction times and excellent yields. Thorough stoichiometric, thermodynamic, and kinetic studies were carried out, allowing us to propose a plausible mechanism for the catalytic reaction.
合成了一类新型的锕系配合物[(L)An(N{SiMe})](An = Th或U)(-和),其由具有高亲核性的七元氮杂环亚胺基配体支撑,并通过单晶X射线衍射进行了全面表征。这些配合物成功地用作强大的催化剂,用于在室温下将醇加成到碳二亚胺上,以短反应时间和优异产率生成相应的理想异脲产物。进行了全面的化学计量、热力学和动力学研究,使我们能够提出催化反应的合理机制。