2-[(1S,4S)-5-methyl-2,5-diazabicyclo[2.2.1]heptan-2-yl]-5-nitrotoluene → 3-Methyl-4-[(1S,4S)-5-methyl-2,5-diazabicyclo[2.2.1]hept-2-yl]aniline

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Reaction Steps

2-[(1S,4S)-5-Methyl-2,5-diazabicyclo[2.2.1]hept-2-yl]-5-nitrotoluene (3.3 g) was dissolved in EtOH (50 mL) and transferred to Parr hydrogenation flask. Catalyst, Pd/C (450 mg), was added and the mixture subjected to hydrogenation at 30 PSI for 2 h. The reaction mixture was filtered through Celite and the Celite filter cake washed with EtOH. Concentration of the combined filtrate provided 3-methyl-4-[(1S,4S)-5-methyl-2,5-diazabicyclo[2.2.1]heptan-2-yl]aniline, as a tan solid (2.52 g, 86%). 1H NMR (DMSO-d6): δ 6.58 (d, 1H, J=8.8 Hz), 6.34 (s, 1H), 6.27 (d, 1H, J=8.8 Hz), 4.46 (s, 2H), 3.61 (s, 1H), 3.24 (s, 1H), 3.16 (d, 1H, J=9.3 Hz), 2.93 (dd, 1H, J=1.8 and 9.3 Hz), 2.61 (qt, 2H, J=9.3 Hz), 2.26 (s, 3H), 2.05 (s, 3H), 1.70 (d, 1H, J=9.1 Hz), 1.63 (d, 1H, J=9.1 Hz). LCMS: purity: 97%; MS (m/e): 218 (MH+).

Provenance & Evidence