A new polycyclic diamine, 1,6-diaminodiamantane, was synthesized start
ing from 1,6-dibromodiamantane. The reaction of 1,6-dibromodiamantane
with acetonitrile using H2SO4 as catalyst afforded 1,6-diacetamidodiam
antane in 72% yield. The reaction of 1,6-diacetamidodiamantane with Na
OH afforded 1,6-diaminodiamantane in 50% yield.