Benzoyl chloride → 2-Benzoyl-6-methoxy-1-[4-(phenylmethoxy)benzyl]-1,2,3,4-tetrahydroisoquinoline

HRID 2119465Notes

Reaction equation

HRID 2119465 reaction equation
[CH3:1][O:2][C:3]1[CH:4]=[C:5]2[C:10](=[CH:11][CH:12]=1)[CH:9]([CH2:13][C:14]1[CH:19]=[CH:18][C:17]([O:20][CH2:21][C:22]3[CH:27]=[CH:26][CH:25]=[CH:24][CH:23]=3)=[CH:16][CH:15]=1)[NH:8][CH2:7][CH2:6]2.C(N(CC)CC)C.[C:35](Cl)(=[O:42])[C:36]1[CH:41]=[CH:40][CH:39]=[CH:38][CH:37]=1>CN(C)C1C=CN=CC=1.C(Cl)Cl>[C:35]([N:8]1[CH2:7][CH2:6][C:5]2[C:10](=[CH:11][CH:12]=[C:3]([O:2][CH3:1])[CH:4]=2)[CH:9]1[CH2:13][C:14]1[CH:19]=[CH:18][C:17]([O:20][CH2:21][C:22]2[CH:27]=[CH:26][CH:25]=[CH:24][CH:23]=2)=[CH:16][CH:15]=1)(=[O:42])[C:36]1[CH:41]=[CH:40][CH:39]=[CH:38][CH:37]=1

Participants

6

Reactant 3

HCID 7412Benzoyl chlorideHCID 8471TriethylamineHCID 129507356-Methoxy-1-[4-(phenylmethoxy)benzyl]-1,2,3,4-tetrahydroisoquinoline

Product 1

HCID 234408612-Benzoyl-6-methoxy-1-[4-(phenylmethoxy)benzyl]-1,2,3,4-tetrahydroisoquinolineYield 90.1%

Reagents, catalysts & solvents 2

HCID 142844-(Dimethylamino)pyridineCatalystHCID 6344DichloromethaneSolvent

Procedure

To a solution of 6-methoxy-1-[4-(phenylmethoxy)benzyl]-1,2,3,4-tetrahydroisoquinoline (0.72 g, 2.0 mmol), 4-dimethylaminopyridine (0.2 g), and triethylamine (1.5 mL) in CH2Cl2 (8 mL) at room temperature under nitrogen was added neat benzoyl chloride (0.42 g, 3.0 mmol) dropwise. The reaction was stirred overnight, quenched with a solution of saturated sodium bicarbonate, and extracted with CH2Cl2. The organic layer was dried over MgSO4, filtered, and concentrated. The residue was purified by chromatography (SiO2, 30-50% ethyl acetate/hexane) to provide the title compound (0.835 g, 90% yield): ES−MS (m/z) 464 [M+H]+.

Workup

  1. customquenched with a solution of saturated sodium bicarbonate
  2. extractionextracted with CH2Cl2
  3. dry with materialThe organic layer was dried over MgSO4
  4. filtrationfiltered
  5. concentrationconcentrated
  6. customThe residue was purified by chromatography (SiO2, 30-50% ethyl acetate/hexane)

Sources & evidence

ORD record
ord-bc2bccb6ee5e40f091c39bc34e0ee6a8
Source dataset
uspto-grants-2004_02
Patent number
US06686351B2

Reaction notes

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