Simple Inorganic Boron Compounds with Organic Nucleophiles

Complexes of Simple Inorganic Boron Compounds with Organic Nucleophiles.— 

Borane (BH3) adducts of some nitrogen heterocyclic bases e.g. quinoline, aminopyridines) have been prepared. Halogenoboranes form boronium salts with such heterocycles, and some containing two different bases attached to a single boron atom, of the type (R -pyridine)(R -pyridine)aBH + 2I, have been identified. The syntheses and molecular structure determinations of complexes of phosphoranes with borane have been reported. The molecular structure of MejP.BCls has been determined by gas electron diffraction.  

The reaction of bromoborane-dimethyl sulphide with LiNRSiMej gives MeaSiNRBHa (R=trimethylsilyl or t-butyl). The reactions of BQg with silylamines containing Si-H bonds produce cleavage products such as (MegSiCl) -NBHa and related compounds. 

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