Polyboranes alkynes

While alkynes, nitriles, and isocyanides have long been known to insert a cage carbon into polyboranes (COMC (1982) 5.4.2.6.1 and 5.4.2.6.2), the use of aldehydes to insert a cage carbon was first reported by Bernd Brellochs in 1997 (Figure 5).86 Good yields of 10-vertex monocarbaboranes were obtained from B10H14 with KOH and many aldehydes and this reaction was thus coined the Brellochs reaction. 87... 

B.i.c. Palladium-Catalyzed Hydrosilation ofAlkynes. Relatively little has been reported on the Pd-catalyzed hydrosilation of alkynes. This is in sharp contrast with the corresponding hydrostannation of alkynes discussed later in Sect. C. The reaction of terminal alkynes with HSiEts in the presence of polyborane-containing Pd and Pt complexes yielded the results summarized in Scheme 10, which indicate that Pd and Pt catalysts... 

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