Bromine → alpha-Bromo-2'-methyl-4'-chloropropoxyacetophenone

HRID 1824501

Reaction equation

HRID 1824501 reaction equation
[CH3:1][C:2]1[CH:7]=[C:6]([O:8][CH2:9][CH2:10][CH2:11][Cl:12])[CH:5]=[CH:4][C:3]=1[C:13](=[O:15])[CH3:14].[Br:16]Br.C(=O)(O)[O-].[Na+]>CCOCC>[Br:16][CH2:14][C:13]([C:3]1[CH:4]=[CH:5][C:6]([O:8][CH2:9][CH2:10][CH2:11][Cl:12])=[CH:7][C:2]=1[CH3:1])=[O:15]

Participants

5

Reactant 3

HCID 24408BromineHCID 516892Sodium BicarbonateHCID 693770792'-Methyl-4'-chloropropoxyacetophenone

Product 1

HCID 22015662alpha-Bromo-2'-methyl-4'-chloropropoxyacetophenone

Reagents, catalysts & solvents 1

HCID 3283Diethyl EtherSolvent

Procedure

A solution of the product of Step A (9.33 g) in ether (42 mL) was treated with bromine (2.1 mL) and the mixture stirred for approximately 17 hours. The mixture was slowly poured into saturated sodium bicarbonate solution (100 mL) and then the organic layer was separated. The aqueous layer was washed with a fresh portion of ether (100 mL). The combined organic layers were washed with a fresh portion of water (100 mL), dried over magnesium sulfate, filtered and evaporated to give the title compound (11 g).

Workup

  1. customthe organic layer was separated
  2. washThe aqueous layer was washed with a fresh portion of ether (100 mL)
  3. washThe combined organic layers were washed with a fresh portion of water (100 mL)
  4. dry with materialdried over magnesium sulfate
  5. filtrationfiltered
  6. customevaporated

Sources & evidence

ORD record
ord-e7b019653ccd4007bd234cfdeb69effc
Source dataset
uspto-grants-2006_05
Patent number
US07041827B2

Linked notes

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