“…Initial aniline (99.5%, extra pure, CAS 62-53-3), benzylamine (99%, CAS 100-46-9), Aliquat® 336TG (CAS 63393-96-4), gray elemental selenium (99.5+%, 200 mesh, CAS 7782-49-2) (Acros Organics), adamantan-1-amine (97%, CAS 768-94-5), adamantan-2amine hydrochloride (99%, CAS 10523-68-9), 3,5-dimethyladamantan-1-amine hydrochloride (≥98%, CAS 41100-52-1), adamantan-1-ylmethanamine (98%, CAS 17768-41-1), 1-(adamantan-1-yl)ethan-1-amine (99%, CAS 1501-84-4), and triethylamine (BioUltra, ≥99.5%, CAS 121-44-8) (Sigma-Aldrich) were used without further purification. 2-(Adamantan-1-yl)ethan-1-amine [43] and 4-(adamantan-1-yl)aniline hydrochloride [44] were synthesized according to known procedures.…”