Cyclopropylamine → HCID 67442248, compound

Participants

Reaction Conditions

Reaction Steps

To a stirred solution of aniline 23 (500 mg, 0.92 mmol) and DIPEA (0.8 mL, 4.61 mmol) in THF (18 mL) at −25° C. under nitrogen was added dropwise a solution of triphosgene (273 mg, 0.920 mmol) in THF (2 mL). The reaction mixture was stirred at −25° C. and cyclopropylamine (0.32 mL, 4.61 mmol) was slowly added. The reaction mixture was allowed to warm to RT over 1.5 h and stirred at RT overnight. The reaction mixture was then partitioned between AcOEt and water. The organic layer was successively washed with a saturated aqueous solution of ammonium chloride, 1N NaOH and brine, dried over anhydrous magnesium sulfate, filtered and concentrated to afford the title compound 24 as an off-white solid. The crude material was used in the next step without any further purification. MS (m/z): 626.6 (M+H).

Provenance & Evidence