Acetic Anhydride → N-[2-amino-5-(trifluoromethyl)benzyl]-N-[3,5-bis(trifluoromethyl)benzyl]-acetamide

HRID 17085

Reaction equation

[NH2:1][C:2]1[CH:24]=[CH:23][C:22]([C:25]([F:28])([F:27])[F:26])=[CH:21][C:3]=1[CH2:4][NH:5][CH2:6][C:7]1[CH:12]=[C:11]([C:13]([F:16])([F:15])[F:14])[CH:10]=[C:9]([C:17]([F:20])([F:19])[F:18])[CH:8]=1.[C:29](OC(=O)C)(=[O:31])[CH3:30].C(N(CC)CC)C>C(Cl)Cl>[NH2:1][C:2]1[CH:24]=[CH:23][C:22]([C:25]([F:26])([F:27])[F:28])=[CH:21][C:3]=1[CH2:4][N:5]([CH2:6][C:7]1[CH:12]=[C:11]([C:13]([F:14])([F:15])[F:16])[CH:10]=[C:9]([C:17]([F:18])([F:19])[F:20])[CH:8]=1)[C:29](=[O:31])[CH3:30]

Participants

Conditions

Temperature: 0 °C

Procedure

To a solution of [2-amino-5-(trifluoromethyl)benzyl][3,5-bis(trifluoromethyl)benzyl]amine (Example 3) (270 mg, 0.65 mmol) in methylene chloride at 0° C., acetic anhydride (0.061 mL, 0.65 mmol) in methylene chloride and then triethylamine were added (0.018 mL, 0.13 mmol). The solution was stirred for 0.5 hours at 0° C. This solution was washed with saturated sodium bicarbonate, dried over anhydrous sodium sulfate, filtered and concentrated. The title compound was purified by column chromatography using 40% EtOAC/hexane. 1H NMR (CDCl3, 500 MHz) δ 7.80 (s, 1H), 7.56 (s, 2H), 7.30 (d, J=8.5 Hz, 1H), 7.04 (s, 1H), 6.65 (d, J=8.5 Hz, 1H), 4.67 (s, 2H), 4.65 (s, 2H), 2.22 (s, 3H).

Workup

washThis solution was washed with saturated sodium bicarbonate
dry with materialdried over anhydrous sodium sulfate
filtrationfiltered
concentrationconcentrated
customThe title compound was purified by column chromatography

Sources & evidence

ORD record: ord-15844232dbac43c3b6fab1562955d804
Source dataset: uspto-grants-2010_06
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US07737295B2

Linked notes

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