9-Amino-5,7-dibromo-1,2,3,4-tetrahydroacridine hemihydrate was written by Celik, Ismail;Akkurt, Mehmet;Ekiz, Makbule;Okten, Salih;Tutar, Ahmet;Ersanli, Cem Cuneyt. And the article was included in IUCrData in 2017.Safety of 2-Amino-3,5-dibromobenzonitrile This article mentions the following:
The asym. unit of the title compound, C13H12Br2N2·0.5H2O, includes two mols. of 5,7-dibromo-1,2,3,4-tetrahydroacridin-9-amine and one water mol. In the crystal, C-H···O, N-H···N, N-H···O and O-H···N hydrogen bonds connect the mols., forming a two-dimensional network parallel to (010). The two-dimensional sheets are further assembled into a three-dimensional structure through C-H···π and π-π stacking interactions [centroid-centroid distance = 3.719 (2) Å]. In the experiment, the researchers used many compounds, for example, 2-Amino-3,5-dibromobenzonitrile (cas: 68385-95-5Safety of 2-Amino-3,5-dibromobenzonitrile).
2-Amino-3,5-dibromobenzonitrile (cas: 68385-95-5) belongs to nitriles. Nitrile carbon shifts are in the range of 115–125 ppm whereas in isonitriles the shifts are around 155–165 ppm. Nitriles are susceptible to hydrogenation over diverse metal catalysts. The reaction can afford either the primary amine (RCH2NH2) or the tertiary amine ((RCH2)3N), depending on conditions.Safety of 2-Amino-3,5-dibromobenzonitrile
Referemce:
Nitrile – Wikipedia,
Nitriles – Chemistry LibreTexts