Synthesis of Homologs of 1-Isothiocyanatoadamantane

Abstract

Amines of the adamantane series reacted with carbon disulfide and di-tert-butyl dicarbonate in the presence of triethylamine and a catalytic amount of 4-(dimethylamino)pyridine to give homologs of 1-isothiocyanatoadamantane in 80–86% yields. Adamantan-2-amine, 1-(adamantan-1-yl)ethanamine, and adamantan- 1-ylmethanamine turned out to be more reactive than adamantan-1-amine; in the latter case, the reaction time was twice as long.