Iodoethane → N-Trifluoroacetyl-8-bromo-7-ethoxy-1-methyl-2,3, 4,5-tetrahydro-1H-3-benzazepine

HRID 2108523Notes

Reaction equation

HRID 2108523 reaction equation
[F:1][C:2]([F:20])([F:19])[C:3]([N:5]1[CH2:11][CH:10]([CH3:12])[C:9]2[CH:13]=[C:14]([Br:18])[C:15]([OH:17])=[CH:16][C:8]=2[CH2:7][CH2:6]1)=[O:4].[CH2:21](I)[CH3:22].C1CCN2C(=NCCC2)CC1>ClCCl.CCOC(C)=O>[F:20][C:2]([F:19])([F:1])[C:3]([N:5]1[CH2:11][CH:10]([CH3:12])[C:9]2[CH:13]=[C:14]([Br:18])[C:15]([O:17][CH2:21][CH3:22])=[CH:16][C:8]=2[CH2:7][CH2:6]1)=[O:4]

Participants

6

Reactant 3

HCID 6340IodoethaneHCID 811841,8-Diazabicyclo(5.4.0)undec-7-eneHCID 22292819N-Trifluoroacetyl-8-bromo-7-hydroxy-1-methyl-2,3,4,5-tetrahydro-1H-3-benzazepine

Product 1

HCID 22292768N-Trifluoroacetyl-8-bromo-7-ethoxy-1-methyl-2,3, 4,5-tetrahydro-1H-3-benzazepineYield 61.2%

Reagents, catalysts & solvents 2

HCID 6344DichloromethaneSolventHCID 8857Ethyl AcetateSolvent

Procedure

A solution of N-trifluoroacetyl-8-bromo-7-hydroxy-1-methyl-2,3,4,5-tetrahydro-1H-3-benzazepine (0.015 g, 0.043 mmol) in dichloromethane (1 mL) was treated with ethyl iodide (0.016 g, 0.102 mmol), DBU (0.016 g, 0.102 mmol) and stirred 2 hours at 20 C. The product mixture was diluted with EtOAc (10 mL), washed with 5% aqueous HCl (5 mL), brine (5 mL), dried with Na2SO4 and concentrated. Flash chromatography (15% EtOAc in hexane, silica) resulted in 0.010 g of a clear oil.

Workup

  1. washwashed with 5% aqueous HCl (5 mL), brine (5 mL)
  2. dry with materialdried with Na2SO4
  3. concentrationconcentrated

Sources & evidence

ORD record
ord-423d4fe53fdc49a39c51794912404292
Source dataset
uspto-grants-2009_04
Patent number
US07514422B2

Reaction notes

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