Pearce Kyle G, Hill Michael S, Mahon Mary F
Department of Chemistry, University of Bath, Claverton Down, Bath, BA2 7AY, UK.
Chem Commun (Camb). 2023 Feb 2;59(11):1453-1456. doi: 10.1039/d2cc06702a.
Reaction of BeCl with the dilithium diamide, [{SiN}Li] ({SiN} = {CHSiMeNDipp}), provides the dimeric chloroberyllate, [{SiNBeCl}Li], en route to the 2-coordinate beryllium amide, [SiNBe]. Lithium or sodium reduction of [SiNBe] in benzene, provides the relevant organoberyllate products, [{SiNBePh}M] (M = Li or Na), the presumed intermediacy of transient Be(I) radicals.
氯化铍与二锂二酰胺[{SiN}Li]({SiN} = {CHSiMeNDipp})反应,生成二聚氯化铍酸盐[{SiNBeCl}Li],进而得到二配位铍酰胺[SiNBe]。在苯中用锂或钠还原[SiNBe],得到相关的有机铍酸盐产物[{SiNBePh}M](M = Li或Na),推测有瞬态Be(I)自由基作为中间体。