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

HRID 17085
Notes
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Reaction equation

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]
ParticipantsConditionsProcedureWorkupSources & evidenceReaction notes

Participants

5

Reactant 3

HCID 7918Acetic AnhydrideHCID 8471TriethylamineHCID 59343853[2-Amino-5-(trifluoromethyl)benzyl][3,5-bis(trifluoromethyl)benzyl]amine

Product 1

HCID 86615399N-[2-amino-5-(trifluoromethyl)benzyl]-N-[3,5-bis(trifluoromethyl)benzyl]-acetamide

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent2×

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

  1. washThis solution was washed with saturated sodium bicarbonate
  2. dry with materialdried over anhydrous sodium sulfate
  3. filtrationfiltered
  4. concentrationconcentrated
  5. 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

Reaction notes

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On this pageParticipantsConditionsProcedureWorkupSources & evidenceReaction notes