Sanjukta Pahar, Yara van Ingen, Rasool Babaahmadi, Benson M Kariuki, Thomas Wirth, Emma Richards, Rebecca L Melen
Diverse reactivity of the bulky tris(trimethylsilyl)silyl substituent [Si(SiMe3 )3 ], also known as the hypersilyl group, was observed for amidinate-supported dichloro- and phenylchloroborane complexes. Treatment of the dichloroborane with potassium tris(trimethylsilyl)silyl led to the activation of the backbone β-carbon center and formation of saturated four-membered heterocyclic chloroboranes R'{Si(SiMe3 )3 }C(NR)2 BCl [R' = Ph, R = Cy ( 3 ); R' = Ph, R = i Pr ( 6 ); R' = t Bu, R = Cy ( 8 )], whereas the four-membered amidinate hypersilyl-substituted phenyl borane 4 {PhC(NCy)2 B(Ph)[Si(SiMe3 )3 ]} was observed for the case of an amidinate-supported phenylchloroborane...
April 23, 2024: Inorganic Chemistry