Valerio Leyla R, Hakey Brett M, Brennessel William W, Matson Ellen M
Department of Chemistry, University of Rochester, Rochester, NY, 14627, USA.
Chem Commun (Camb). 2022 Oct 6;58(80):11244-11247. doi: 10.1039/d2cc04424b.
Reductive silylation of the uranyl dication with 1,4-bis(trimethylsilyl)dihydropyrazine, or "Mashima's reagent", is detailed. The reagent simultaneously delivers silylium ions and electrons to multiple uranyl complexes, a pyridine dipyrrolide uranyl complex and a common uranyl-containing starting material, UOCl(OPPh). This reaction results in quantitative activation of thermodynamically robust UO bonds. The reductive functionalization of environmentally persistent actinyl species with Mashima's reagent is seen as a promising solution for nuclear waste remediation.
详细介绍了用1,4-双（三甲基甲硅烷基）二氢吡嗪（即“真岛试剂”）对铀酰二价阳离子进行还原硅氢化反应。该试剂能同时将硅鎓离子和电子传递给多种铀酰配合物，一种吡啶二吡咯基铀酰配合物和一种常见的含铀起始原料UOCl(OPPh)。该反应导致热力学稳定的UO键被定量活化。用真岛试剂对环境中持久性锕系元素进行还原官能化反应被视为核废料修复的一种有前景的解决方案。
