Dimethyl N-cyanodithioiminocarbonate → HCID 178512076, compound

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Reaction Steps

To a solution of N-benzylethane-1,2-diamine (3.00 g, 19.96 mmol) in anhydrous dioxane (15 mL) was added dimethyl cyanocarbonimidodithioate (3.50 g, 23.96 mmol). The mixture was refluxed for 16 hours, then diluted with dichloromethane (200 mL), washed with water (200 mL) and brine (100 mL). The organic layer was dried over anhydrous sodium sulfate, filtered and concentrated in vacuo. The residue was purified by column chromatography eluted with ethyl acetate/hexane (1/4) to afford the title compound as a colorless solid in 95% yield (3.88 g): mp 120-122° C. (ethyl acetate/hexanes); 1H NMR (300 MHz, CDCl3) δ 7.36-7.22 (m, 5H), 6.86 (br s, 1H), 4.38 (s, 2H), 3.58-3.52 (m, 2H), 3.44-3.88 (m, 2H); 13C NMR (75 MHz, CDCl3) δ 164.0, 135.5, 128.8, 128.1, 127.9, 119.4, 48.3, 46.1, 40.2; MS (ES+) m/z 201.2 (M+1).

Provenance & Evidence