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Sodium Chloride → 1-(tert-butyl)-3-((5-chloro-3-(chloromethyl)pyridin-2-yl)methyl)-1,3-dihydro-2H-pyrrolo[2,3-b]pyridin-2-one

HRID 706397
Notes
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Reaction equation

HRID 706397 reaction equation
[C:1]([N:5]1[C:9]2=[N:10][CH:11]=[CH:12][CH:13]=[C:8]2[CH:7]([CH2:14][C:15]2[C:20]([CH2:21]O)=[CH:19][C:18]([Cl:23])=[CH:17][N:16]=2)[C:6]1=[O:24])([CH3:4])([CH3:3])[CH3:2].CN(C=O)C.S(Cl)([Cl:32])=O.[Na+].[Cl-]>ClCCl>[C:1]([N:5]1[C:9]2=[N:10][CH:11]=[CH:12][CH:13]=[C:8]2[CH:7]([CH2:14][C:15]2[C:20]([CH2:21][Cl:32])=[CH:19][C:18]([Cl:23])=[CH:17][N:16]=2)[C:6]1=[O:24])([CH3:4])([CH3:3])[CH3:2]
ParticipantsConditionsProcedureWorkupSources & evidenceReaction notes

Participants

6

Reactant 4

HCID 5234Sodium ChlorideHCID 6228DimethylformamideHCID 24386Thionyl ChlorideHCID 717382771-(tert-butyl)-3-((5-chloro-3-(hydroxymethyl)pyridin-2-yl)methyl)-1,3-dihydro-2H-pyrrolo[2,3-b]pyridin-2-one

Product 1

HCID 717382761-(tert-butyl)-3-((5-chloro-3-(chloromethyl)pyridin-2-yl)methyl)-1,3-dihydro-2H-pyrrolo[2,3-b]pyridin-2-oneYield 94.8%

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent

Conditions

Temperature
0 °C

Procedure

To a solution of 56 (5.8 g, 16.8 mmol) in dichloromethane (30 mL) was added DMF (60 μL) and thionyl chloride (2.2 g) at 5° C. The mixture was stirred for 30 min at this temperature followed by addition of 5% aqueous NaCl (30 mL). The organic layer was separated and washed with 5% aqueous NaCl (30 mL). The solvent was removed and the residue was dissolved in heptane (20 mL). The solution was stirred for 30 min and the product was precipitated. The suspension was cooled to 0° C. and filtered to give 57 (5.8 g, 93%) as a solid:

Workup

  1. customThe organic layer was separated
  2. washwashed with 5% aqueous NaCl (30 mL)
  3. customThe solvent was removed
  4. dissolutionthe residue was dissolved in heptane (20 mL)
  5. stirringThe solution was stirred for 30 min
  6. customthe product was precipitated
  7. filtrationfiltered

Sources & evidence

ORD record
ord-d51b4624f36d4d008e1258338165c4e4
Source dataset
uspto-grants-2015_11
DOI
10.6084/m9.figshare.5104873.v1
Patent number
US09174989B2

Reaction notes

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On this pageParticipantsConditionsProcedureWorkupSources & evidenceReaction notes