01436nas a2200181   4500008004100000022001400041245011500055210006900170260000800239300001400247490000700261520077400268100002401042700001901066700002401085700001901109856012601128       2021                        eng d  a0276-733300aReactivities of silaimines with boranes: from cooperative B-H bond activation to donor stabilized silyl cation0 aReactivities of silaimines with boranes from cooperative BH bond  cJUL  a2133-21380 v403 aThe recently published silylene with a tris(trimethylsilyl) group, PhC(NtBu)(2)SiSi(SiMe3)(3) (1), was reacted with the organic azides such as SiMe3N3 and AdN(3) to form the respective hypersilylsilaimines, PhC(NtBu)(2)Si(=NR)Si(SiMe3)(3) 2 (R = SiMe3) and 3 (R = Ad). The B-H bond of HBpin or HBcat was split across the Si=N bond upon reaction with 2, which generated 4 and 5, respectively. However, we could not obtain the crystals of 4 and 5 appropriate for X-ray diffraction. Subsequently, we performed the analogous reactions with a related silaimine PhC(NtBu)(2)Si(=NSiMe3)N(SiMe3) 2 (2') and isolated similar B-H bond activated products 6 and 7. The reaction of 2' with HBCl2 resulted in donor stabilized silyl cations (8 and 9) supported by an amidinate ligand.1 aBisai, Milan, Kumar1 aSharma, Vishal1 aGonnade, Rajesh, G.1 aSen, Sakya, S.  uhttps://library.ncl.res.in/content/reactivities-silaimines-boranes-cooperative-b-h-bond-activation-donor-stabilized-silyl