A Systematic Study of Structure and E−H Bond Activation Chemistry by Sterically Encumbered Germylene Complexes
作者:Matthew Usher、Andrey V. Protchenko、Arnab Rit、Jesús Campos、Eugene L. Kolychev、Rémi Tirfoin、Simon Aldridge
DOI:10.1002/chem.201601840
日期:2016.8.8
ERn=NHDipp, CH(SiMe3)2, P(SiMe3)2, Si(SiMe3)3 or B(NDippCH)2; terphenyl=C6H3Mes2‐2,6=ArMes or C6H3Dipp2‐2,6=ArDipp; Dipp=C6H3iPr2‐2,6, Mes=C6H2Me3‐2,4,6), while the related complex [(Me3Si)2N}GeB(NDippCH)2}] (8) can be accessed by an amide/boryl exchange route. Metrical parameters have been probed by X‐ray crystallography, and are consistent with widening angles at the metal centre as more bulky and/or
合成了一系列新的二甲基亚砜化合物,这些化合物可系统地改变α-取代基的σ-和π-容量,以及不同的对E-H键活化的反应性(E = H,B,C,N,Si,Ge )。利用[(三联苯)GeCl]进行氯离子复分解被证明是一种有效的合成方法[[三联苯] Ge(ER n)](1 – 6:ER n = NHDipp,CH(SiMe 3)2,P( SiMe 3)2,Si(SiMe 3)3或B(NDippCH)2;三联苯= C 6 H 3 Mes 2 -2,6 = Ar Mes或C 6 H 3 Dipp 2 ‐2,6 = Ar Dipp ; 卜先生= C 6 H ^ 3我镨2 -2,6,MES = C 6 H ^ 2我3 -2,4,6-),而相关的复杂的[(ME 3 Si)的2 N} 戈B(NDippCH)2 }](8)可以通过酰胺/硼基交换途径获得。通过X射线晶体学探测了尺寸参数,并且与金属中心处的加宽角