Triethylamine → HCID 15388980, compound

HRID 273812Notes

Reaction equation

HRID 273812 reaction equation
C(N(CC)CC)C.[NH2:8][C:9]1[CH:14]=[CH:13][C:12]([C:15]([F:18])([F:17])[F:16])=[CH:11][CH:10]=1.[Br:19][CH2:20][CH2:21][CH2:22][CH2:23][CH2:24][C:25](Cl)=[O:26].C(=O)(O)[O-].[Na+]>ClCCl>[Br:19][CH2:20][CH2:21][CH2:22][CH2:23][CH2:24][C:25]([NH:8][C:9]1[CH:14]=[CH:13][C:12]([C:15]([F:16])([F:17])[F:18])=[CH:11][CH:10]=1)=[O:26]

Participants

6

Conditions

Temperature
20 °C

Procedure

Triethylamine (1.30 mL) and 4-aminobenzotrifluoride (1.21 g) were stirred in dichloromethane (35 mL) at 0° C. under nitrogen and treated with 6-bromohexanoyl chloride (1.15 mL). After 20 minutes, the reaction was allowed to warm to 20° C. and stirred an additional 40 minutes. The reaction was treated with aqueous saturated sodium bicarbonate (40 mL), and extracted with dichloromethane. The extracts were dried over sodium sulfate, filtered, and concentrated in vacuo to a solid. This solid was dissolved ethyl acetate and the title compound was precipitated out as fine white needles by addition of hexanes (2.35 g). M.p. 96°-98° C. Anal. Calc. for C13H15BrF3NO: C, 46.17; H, 4.47; N, 4.14. Found: C, 46.25; H, 4.59; N, 4.12. IR(KBr): 3316, 1670, 1600, 1530, 1410, 1322, 1260, 1170, 1128, 1112, 1066, 842 cm-1. CIMS(CH4): 340 (90%), 338 (100%), 320 (50%), 318 (55%), 258 (60%). 1H NMR (CDCl3): 7.65 (2H, d; J=8.5 Hz), 7.56 (2H, d; J=8.5 Hz), 7.47 (1H, bs), 3.42 (2H, t; J=6.5 Hz), 2.40 (1H, t; J=6.6 Hz), 1.90 (2H, m), 1.75 (2H, m), 1.52 (2H, m) ppm. 13C NMR (CDCl3): 171.21, 140.83, 126.27, 119.32, 37.39, 33.49, 32.34, 27.64, 24.42 ppm. 19F NMR (CDCl3): -62.712 ppm.

Workup

  1. extractionextracted with dichloromethane
  2. dry with materialThe extracts were dried over sodium sulfate
  3. filtrationfiltered
  4. concentrationconcentrated in vacuo to a solid
  5. dissolutionThis solid was dissolved ethyl acetate
  6. customthe title compound was precipitated out as fine white needles by addition of hexanes (2.35 g)

Sources & evidence

ORD record
ord-f719078e62d24b0bbdc1026e7b3fc77f
Source dataset
uspto-grants-1995_02
Patent number
US05387604

Reaction notes

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