Push-pull alkenes bearing closo-decaborate cluster generated via nucleophilic addition of carbanions to borylated nitrilium salts

[B10H10]2– Nanoclusters Covalently Immobilized to Hybrid SiO2 Aerogels for Slow Neutron Shielding Applications

“…This approach allows appending various functional groups to the closo- decaborate moiety, which can further be chemically modified, e.g. , with cyclic oxonium or nitrilium groups. , For example, nucleophilic addition to multiple bonds of nitrilium derivatives and cycloaddition reactions makes it possible to synthesize closo -decaborates with a wide range of functionalities. − The synthesis of functionalized [B 10 H 10 ] 2– anions is also very attractive for their further immobilization on the carriers’ surface. − …”

Synthesis of Boronated Amidines by Addition of Amines to Nitrilium Derivative of Cobalt Bis(Dicarbollide)

“…Nucleophilic addition reactions to the highly polarized -N + ≡CR triple bonds in aryl-and alkylnitrilium salts [30] and nitrile complexes of transition metals [31][32][33][34][35] are widely used in organic synthesis and have large potential in the modification of polyhedral boron hydrides [36]. Thus, the nitrilium derivatives of the closo-decaborate anion react with water [37,38], alcohols [39], amines [40,41], hydrazines [42], hydrazones [42] and oximes [43,44], as well as with various carbanions [45,46] to form the corresponding addition products. Like organic nitrilium salts, they are able to participate in 1,3-dipolar cycloaddition reactions with azides and nitrones leading to the corresponding boronated tetrazoles [47] and 2,3-dihydro-1,2,4-oxadiazoles [48], respectively.…”