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Trifluoroacetic acid → 1-benzenesulfonyl-5-chloro-3-(2-methylsulfanyl-pyrimidin-5-ylmethyl)-1H-pyrrolo[2,3-b]pyridine

HRID 1396145
Notes
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Reaction equation

HRID 1396145 reaction equation
[C:1]1([S:7]([N:10]2[C:14]3=[N:15][CH:16]=[C:17]([Cl:19])[CH:18]=[C:13]3[C:12]([CH:20]([C:22]3[CH:23]=[N:24][C:25]([S:28][CH3:29])=[N:26][CH:27]=3)O)=[CH:11]2)(=[O:9])=[O:8])[CH:6]=[CH:5][CH:4]=[CH:3][CH:2]=1.C([SiH](CC)CC)C.FC(F)(F)C(O)=O>C(#N)C>[C:1]1([S:7]([N:10]2[C:14]3=[N:15][CH:16]=[C:17]([Cl:19])[CH:18]=[C:13]3[C:12]([CH2:20][C:22]3[CH:23]=[N:24][C:25]([S:28][CH3:29])=[N:26][CH:27]=3)=[CH:11]2)(=[O:9])=[O:8])[CH:2]=[CH:3][CH:4]=[CH:5][CH:6]=1
ParticipantsConditionsProcedureWorkupSources & evidenceReaction notes

Participants

5

Reactant 3

HCID 6422Trifluoroacetic acidHCID 12052TriethylsilaneHCID 57619161(1-benzenesulfonyl-5-chloro-1H-pyrrolo[2,3-b]pyridin-3-yl)-(2-methylsulfanyl-pyrimidin-5-yl)-methanol

Product 1

HCID 576194221-benzenesulfonyl-5-chloro-3-(2-methylsulfanyl-pyrimidin-5-ylmethyl)-1H-pyrrolo[2,3-b]pyridineYield 64.1%

Reagents, catalysts & solvents 1

HCID 6342
Acetonitrile
Solvent

Conditions

Temperature
80 °C

Procedure

To (1-benzenesulfonyl-5-chloro-1H-pyrrolo[2,3-b]pyridin-3-yl)-(2-methylsulfanyl-pyrimidin-5-yl)-methanol (35, 4.70 g, 10.5 mmol) in 120.0 mL of acetonitrile, triethylsilane (22.0 mL, 138 mmol) and trifluoroacetic acid (11.0 mL, 143 mmol) are added. The reaction is stirred at 80° C. for 3 hours, then concentrated under vacuum, mixed with aqueous potassium carbonate and extracted with ethyl acetate. The organic layer is dried over sodium sulfate, filtered and the filtrate concentrated under vacuum. The resulting material is purified by silica gel column chromatography eluting with 20-100% ethyl acetate in hexane. Appropriate fractions are combined and solvents removed under vacuum to provide the desired compound (36, 2.90 g).

Workup

  1. concentrationconcentrated under vacuum
  2. additionmixed with aqueous potassium carbonate
  3. extractionextracted with ethyl acetate
  4. dry with materialThe organic layer is dried over sodium sulfate
  5. filtrationfiltered
  6. concentrationthe filtrate concentrated under vacuum
  7. customThe resulting material is purified by silica gel column chromatography
  8. washeluting with 20-100% ethyl acetate in hexane
  9. customsolvents removed under vacuum

Sources & evidence

ORD record
ord-8617029a32954f3b9ca1d74f50259fa5
Source dataset
uspto-grants-2014_12
DOI
10.6084/m9.figshare.5104873.v1
Patent number
US08901118B2

Reaction notes

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On this pageParticipantsConditionsProcedureWorkupSources & evidenceReaction notes