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Ammonium Acetate → 5-bromo-2-(5-[1-[4-(cyclopropylsulfonyl)phenyl]-2-(tetrahydro-2H-pyran-4-yl)ethyl]-1H-pyrrol-2-yl)pyridine

HRID 1881968
Notes
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Reaction equation

HRID 1881968 reaction equation
[Br:1][C:2]1[CH:3]=[CH:4][C:5]([C:8](=O)[CH2:9][CH2:10][C:11](=O)[CH:12]([C:20]2[CH:25]=[CH:24][C:23]([S:26]([CH:29]3[CH2:31][CH2:30]3)(=[O:28])=[O:27])=[CH:22][CH:21]=2)[CH2:13][CH:14]2[CH2:19][CH2:18][O:17][CH2:16][CH2:15]2)=[N:6][CH:7]=1.C([O-])(=O)C.[NH4+:38]>C(O)(=O)C.C(OCC)(=O)C>[Br:1][C:2]1[CH:3]=[CH:4][C:5]([C:8]2[NH:38][C:11]([CH:12]([C:20]3[CH:21]=[CH:22][C:23]([S:26]([CH:29]4[CH2:31][CH2:30]4)(=[O:27])=[O:28])=[CH:24][CH:25]=3)[CH2:13][CH:14]3[CH2:15][CH2:16][O:17][CH2:18][CH2:19]3)=[CH:10][CH:9]=2)=[N:6][CH:7]=1
ParticipantsConditionsProcedureWorkupSources & evidenceReaction notes

Participants

5

Reactant 2

HCID 517165Ammonium AcetateHCID 593313481-(5-bromopyridin-2-yl)-5-[4-(cyclopropylsulfonyl)phenyl]-6-(tetrahydro-2H-pyran-4-yl)hexane-1,4-dione

Product 1

HCID 593312485-bromo-2-(5-[1-[4-(cyclopropylsulfonyl)phenyl]-2-(tetrahydro-2H-pyran-4-yl)ethyl]-1H-pyrrol-2-yl)pyridineYield 96%

Reagents, catalysts & solvents 2

HCID 176Acetic AcidSolvent
HCID 8857
Ethyl Acetate
Solvent

Conditions

Temperature
110 °C

Procedure

To a solution (10 mL) of 1-(5-bromopyridin-2-yl)-5-[4-(cyclopropylsulfonyl)phenyl]-6-(tetrahydro-2H-pyran-4-yl)hexane-1,4-dione (1.29 g) in acetic acid (10 mL) was added ammonium acetate (3.00 g), and the mixture was stirred at 110° C. for 45 min. After cooling to room temperature, the reaction mixture was diluted with ethyl acetate and washed with water. The ethyl acetate layer was washed with saturated aqueous sodium hydrogen carbonate and saturated brine, dried (MgSO4) and concentrated. The residue was subjected to silica gel column chromatography, and the title compound (1.12 g, yield 96%) was obtained as a white amorphous solid from a fraction eluted with ethyl acetate-hexane (1:1, volume ratio). MS: 517 (MH+).

Workup

  1. temperatureAfter cooling to room temperature
  2. washwashed with water
  3. washThe ethyl acetate layer was washed with saturated aqueous sodium hydrogen carbonate and saturated brine
  4. dry with materialdried (MgSO4)
  5. concentrationconcentrated

Sources & evidence

ORD record
ord-71727e4eae344ce4a35d0ac2bda7869f
Source dataset
uspto-grants-2012_11
DOI
10.6084/m9.figshare.5104873.v1
Patent number
US08318746B2

Reaction notes

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On this pageParticipantsConditionsProcedureWorkupSources & evidenceReaction notes