tert-Butanol → Tert-butyl 4-(bromomethyl)benzoate

HRID 883501

Reaction equation

HRID 883501 reaction equation
[Br:1][CH2:2][C:3]1[CH:11]=[CH:10][C:6]([C:7](Br)=[O:8])=[CH:5][CH:4]=1.[C:12]([OH:16])([CH3:15])([CH3:14])[CH3:13]>C(Cl)Cl>[C:12]([O:16][C:7](=[O:8])[C:6]1[CH:10]=[CH:11][C:3]([CH2:2][Br:1])=[CH:4][CH:5]=1)([CH3:15])([CH3:14])[CH3:13]

Participants

4

Reactant 2

HCID 6386tert-ButanolHCID 46406714-Bromomethyl benzoyl bromide

Product 1

HCID 11414578Tert-butyl 4-(bromomethyl)benzoateYield 53.8%

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent

Procedure

4-Bromomethylbenzoyl bromide (13.9 g, 50 mmol, 1.0 eq) was added to 50 mL of DCM, followed by t-butanol (9.6 mL, 100 mmol, 2.0 eq) and the mixture was slowly warmed to room temperature. After 20 hours, the reaction was concentrated under reduced pressure, dissolved into 350 mL EtOAc, washed with 400 mL sat. bicarbonate and 200 mL saturated aqueous NaCl. The organic was dried over MgSO4, filtered, and concentrated under reduced pressure to yield intermediate (19a) as a semisolid (7.3 g).

Workup

  1. concentrationthe reaction was concentrated under reduced pressure
  2. dissolutiondissolved into 350 mL EtOAc
  3. washwashed with 400 mL sat. bicarbonate and 200 mL saturated aqueous NaCl
  4. dry with materialThe organic was dried over MgSO4
  5. filtrationfiltered
  6. concentrationconcentrated under reduced pressure

Sources & evidence

ORD record
ord-6701658534f54ae4adbf78946dc2fd91
Source dataset
uspto-grants-2012_08
Patent number
US08236846B2

Linked notes

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