Benzylamine → 4-(5-Benzylamino-5,6,7,8-tetrahydro-naphthalen-2-yloxy)-benzamide

Participants

Reaction Steps

Combine 4-(5-Oxo-5,6,7,8-tetrahydro-naphthalen-2-yloxy)-benzamide (Intermediate 26, 120.0 mg, 0.43 mmol), Benzylamine (70 uL, 0.64 mmol), THF (3 mL), and Ti(OiPr)4 (0.2 mL, 0.68 mmol) at 0° C. Stir the reaction for 12 hours allowing it to come to room temperature and then add TiCl4 (0.7 mL, 0.68 mmol) at 0° C. After reaction stirs for 3 hours, add BH3SMe2 at room temperature. After the reaction stirs for 72 hours, add 1N NaOH aq (6 mL) at room temperature. Upon addition, a precipitate forms. Allow the reaction to stir for an additions 12 hours, centrifuge, and decant off aqueous and organic layers. Separate the organic layer and concentrate. Add the organic mixture to a 2 g SCX column, wash with MeOH, and elute with 1N NH3 MeOH. Purify using reverse phase chromatography (5% to 95% 0.001% TFA buffer in acetonitrile/water) to afford 19.4 mg, 0.05 mmol (12% yield) of the title compound: 1H NMR (500 MHz, CDCl3); 1.7-1.8 (2H, m), 1.9-2.1 (3H, m), 2.6-2.9 (2H, m), 3.8-4.0 (3H, m), 6.7-6.9 (2H, m), 6.9-7.0 (2H, m), 7.2-7.5 (6H, m), 7.7-7.9 (2H,m); MS m/z 284 (M of SM+3).

Provenance & Evidence