tert-Butanol → Tert-butyl 2-(3-bromophenyl)acetate

HRID 1699085Notes

Reaction equation

HRID 1699085 reaction equation
[Br:1][C:2]1[CH:3]=[C:4]([CH2:8][C:9]([OH:11])=[O:10])[CH:5]=[CH:6][CH:7]=1.[C:12](O)([CH3:15])([CH3:14])[CH3:13].C1CCC(N=C=NC2CCCCC2)CC1>CN(C1C=CN=CC=1)C.C(Cl)Cl>[C:12]([O:10][C:9](=[O:11])[CH2:8][C:4]1[CH:5]=[CH:6][CH:7]=[C:2]([Br:1])[CH:3]=1)([CH3:15])([CH3:14])[CH3:13]

Participants

6

Reactant 3

HCID 6386tert-ButanolHCID 10868DicyclohexylcarbodiimideHCID 74653(3-Bromophenyl)acetic acid

Product 1

HCID 53936336Tert-butyl 2-(3-bromophenyl)acetateYield 89.5%

Reagents, catalysts & solvents 2

HCID 142844-(Dimethylamino)pyridineCatalystHCID 6344DichloromethaneSolvent

Procedure

A mixture of 3-bromo-phenyl acetic acid (5.00 g, 23.24 mmol), tert-butanol (1.89 g, 25.57 mmol), DMAP (3.12 g, 25.57 mmol), and DCC (5.27 g, 25.57 mmol) in CH2Cl2 (150 mL) was stirred for 24 h at room temperature. The reaction was filtered and the filtrate was concentrated in vacuo. The residue was dissolved in EtOAc and the mixture was filtered. The organic solution was washed consecutively with 5.5% HCl, water, saturated NaHCO3, and brine. The organic solution was dried over MgSO4, filtered, and concentrated to provide the title compound (5.64 g).

Workup

  1. filtrationThe reaction was filtered
  2. concentrationthe filtrate was concentrated in vacuo
  3. dissolutionThe residue was dissolved in EtOAc
  4. filtrationthe mixture was filtered
  5. washThe organic solution was washed consecutively with 5.5% HCl, water, saturated NaHCO3, and brine
  6. dry with materialThe organic solution was dried over MgSO4
  7. filtrationfiltered
  8. concentrationconcentrated

Sources & evidence

ORD record
ord-976840525c594cc8a0c73288a175abaa
Source dataset
uspto-grants-2002_02
Patent number
US06344485B1

Reaction notes

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