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

HRID 2304654Notes

Reaction equation

HRID 2304654 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-f08daa1b65de4cb988e4e3f0f5a43e5a
Source dataset
uspto-grants-2002_08
Patent number
US06436923B1

Reaction notes

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