Trifluoroacetic acid → 1-[4-(2-Bromethoxy)benzoyl]-2-(4-fluorophenyl)-6-(phenylmethoxy)-1,2,3,4-tetrahydroisoquinoline

HRID 1358039Notes

Reaction equation

HRID 1358039 reaction equation
[F:1][C:2]1[CH:7]=[CH:6][C:5]([NH:8][CH2:9][CH2:10][C:11]2[CH:16]=[CH:15][CH:14]=[C:13]([O:17][CH2:18][C:19]3[CH:24]=[CH:23][CH:22]=[CH:21][CH:20]=3)[CH:12]=2)=[CH:4][CH:3]=1.[Br:25][CH2:26][CH2:27][O:28][C:29]1[CH:34]=[CH:33][C:32]([C:35]([CH:37]=O)=[O:36])=[CH:31][CH:30]=1.FC(F)(F)C(O)=O>>[Br:25][CH2:26][CH2:27][O:28][C:29]1[CH:34]=[CH:33][C:32]([C:35]([CH:37]2[C:16]3[C:11](=[CH:12][C:13]([O:17][CH2:18][C:19]4[CH:20]=[CH:21][CH:22]=[CH:23][CH:24]=4)=[CH:14][CH:15]=3)[CH2:10][CH2:9][N:8]2[C:5]2[CH:6]=[CH:7][C:2]([F:1])=[CH:3][CH:4]=2)=[O:36])=[CH:31][CH:30]=1

Participants

4

Reactant 3

HCID 6422Trifluoroacetic acidHCID 23440827HCID 23440827, compoundHCID 23440828(4-Fluorophenyl){2-[3-(phenylmethoxy)phenyl]ethyl}amine

Product 1

HCID 234408451-[4-(2-Bromethoxy)benzoyl]-2-(4-fluorophenyl)-6-(phenylmethoxy)-1,2,3,4-tetrahydroisoquinolineYield 78.4%

Procedure

To a solution of (4-fluorophenyl){2-[3-(phenylmethoxy)phenyl]ethyl}amine (0.643 g, 2.0 mmol) and [4-(2-bromoethoxy)phenyl]glyoxal (0.617 g, 2.4 mmol) was added trifluoroacetic acid (0.342 g, 3.0 mmol). The reaction stirred at room temperature for 4 hours. The reaction was quenched with saturated sodium bicarbonate and extracted with ethyl acetate. The organic layer was dried over MgSO4, filtered, concentrated, and purified by column chromatography (SiO2, 20% ethyl acetate/hexane) to provide the title compound (0.879 g, 78% yield): 1H NMR (CDCl3) 8.00 (d, 2H), 7.40 (m, 4H), 7.18 (m, 1H), 7.07 (d, 1H), 6.79-6.92 (m, 8H), 5.85 (s, 1H), 5.02 (s, 2H), 4.33 (t, 2H), 3.71 (m, 1H), 3.64 (t, 2H), 3.47 (m, 1H), 3.07 (m, 1H), 2.87 (m, 1H); ES-MS (m/z) 560 [M+H]+.

Workup

  1. customThe reaction was quenched with saturated sodium bicarbonate
  2. extractionextracted with ethyl acetate
  3. dry with materialThe organic layer was dried over MgSO4
  4. filtrationfiltered
  5. concentrationconcentrated
  6. custompurified by column chromatography (SiO2, 20% ethyl acetate/hexane)

Sources & evidence

ORD record
ord-e18d9d2085d746aca9193b3e2ef9b93d
Source dataset
uspto-grants-2003_07
Patent number
US06593322B1

Reaction notes

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