Synthesis of 1-primary alkylamino-o-carboranes by reduction of 1-primary alkylnitro-o-carboranes

By action of 1-sodium-o-carboranes in liquid ammonia on α,β-unsaturated nitro compounds an easy addition of 1-sodium-o-carboranes to 1-4 positions of α,β-unsaturated nitro compounds is observed resulting in o-carborane nitro derivatives. Primary alkylamino-o-carboranes isolated as a hydrochlorides have been prepared by reducing some o-carborane nitro derivatives with LiAlH4 in ether solutions