Abstract

Differently from typical iminoboranes, the iminoboryl complex trans-[(PCy3)2Pt(B≡NSiMe3)(Br)] (2) displays remarkable stability against oligomerization. Its clean reactivity toward Lewis acids led to the synthesis of the neutral platinum borylene complex trans-[(PCy3)2Pt{BN(SiMe3)(AlCl3)}(Br)], through coordination of AlCl3 to the nitrogen atom of the iminoboryl ligand. Surprising stability of the Pt−B linkage in 2 is further manifested in its reaction with MeOH, yielding the alkoxy(amino)boryl species trans-[(PCy3)2Pt{B(OMe)(N(H)SiMe3)}(Br)].

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