Silicon Hydrides and a Hydridosilicate Based on a Bulky Amidoalkoxide Ligand

The synthesis and characterization of silicon amidoalkoxides based on 6‐ tert ‐butyl‐2‐[(2,6‐diisopropylphenyl)aminomethyl]phenol is described. Reaction of its lithium salt with HSiCl 3 and SiCl 4 gave HSiCl[OC 6 H 3 (CH 2 NDipp)‐2‐ t Bu‐6] ( 2 ) and Cl 2 Si[OC 6 H 3 (CH 2 NDipp)‐2‐ t Bu‐6] ( 5 ) (Dipp = 2,6‐diisopropylphenyl), respectively. The silicon amidoalkoxide 2 reacts with t BuLi and LiN(SiMe 3 ) 2 to give the chiral silanes HSi( t Bu)[OC 6 H 3 (CH 2 NDipp)‐2‐ t Bu‐6] ( 3 ) and HSi[N(SiMe 3 ) 2 ][OC 6 H 3 (CH 2 NDipp)‐2‐ t Bu‐6] ( 4 ). The amidoalkoxide based hydridosilicate [HSi{OC 6 H 3 (CH 2 NDipp)‐2‐ t Bu‐6} 2 ]K ( 6 ) was isolated upon reaction of compound 5 with potassium. The molecular structure of compounds 4 and 6 was determined by single‐crystal X‐ray diffraction studies. Notably, compound 6 is the first silicate of the type [HSiN 2 O 2 ] – .