From Borazine to Gallium Arsenide 13-15 Compounds

Because both groups 13 and 15 exhibit a common valence of 3, they form a suite of equimolar 13-15 compounds, including some quite important ones. One such compound is borazine, an inorganic analog of benzene it is, however, only slightly  

Borazine was first prepared in 1926 by Stock and Pohland by the high temperature reaction of diborane and ammonia  

In the same vein, boron trichloride and ammonium chloride react to yield trichloro- 

Trichloroborazine may then be reduced to borazine with NaBH4, providing a two-step route to the parent compound. 

The mechanism of assembly of the borazine skeleton is illustrated below for trichloroborazine. Ammonia, a nucleophile present in the system, attacks the electrophile BCI3, producing an aminoborane  

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