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

HRID 1180155
Notes
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Reaction equation

HRID 1180155 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
ParticipantsProcedureWorkupSources & evidenceReaction notes

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 14284
4-(Dimethylamino)pyridine
Catalyst
HCID 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-d7d76243ad5845898b127dc9aa15f1eb
Source dataset
uspto-grants-2007_10
DOI
10.6084/m9.figshare.5104873.v1
Patent number
US07279489B2

Reaction notes

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On this pageParticipantsProcedureWorkupSources & evidenceReaction notes