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Allyltributylstannane → HCID 22961885, compound

HRID 365905
Notes
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Reaction equation

HRID 365905 reaction equation
[C:1]([N:8]1[CH2:12][CH2:11][CH2:10][C@H:9]1[CH2:13][O:14][C:15]1[CH:16]=[N:17][C:18]([Cl:22])=[C:19](Br)[CH:20]=1)([O:3][C:4]([CH3:7])([CH3:6])[CH3:5])=[O:2].[CH2:23]([Sn](CCCC)(CCCC)CCCC)[CH:24]=[CH2:25]>C1(C)C=CC=CC=1.C1C=CC([P]([Pd]([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)[P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)=CC=1>[CH2:25]([C:19]1[CH:20]=[C:15]([O:14][CH2:13][C@@H:9]2[CH2:10][CH2:11][CH2:12][N:8]2[C:1]([O:3][C:4]([CH3:7])([CH3:6])[CH3:5])=[O:2])[CH:16]=[N:17][C:18]=1[Cl:22])[CH:24]=[CH2:23]
ParticipantsProcedureWorkupSources & evidenceReaction notes

Participants

5

Reactant 2

HCID 90628AllyltributylstannaneHCID 22872668HCID 22872668, compound

Product 1

HCID 22961885HCID 22961885, compoundYield 110.3%

Reagents, catalysts & solvents 2

HCID 178418397HCID 178418397, compoundCatalystHCID 1140TolueneSolvent

Procedure

3-(1-BOC-2-(S)-pyrrolidinylmethoxy)-5-bromo-6-chloropyridine (2.0 g, 5.14 mmol) in toluene (15 mL) was added tetrakis(triphenylphosphine)palladium (15 mg) and allyltributyltin (3.2 mL, 10.2 mmol). The mixture was stirred and refluxed for 16 h. Solvent was evaporated and the residue was chromatographed (silica gel; hexane/EtOAc, 5:1 to 1:1) to afford an oil (2.0 g, 100%): 1H NMR (CDCl3, 300 MHz) δ 1.24-1.40 (m, 2H), 1.46 (s, 9H), 1.62 (m, 1H), 1.88 (m, 1H), 2.02 (m, 1H), 3.38 (m, 1H), 3.45 (d, 2H, J=7.0 Hz), 3.90 (m, 1H), 4.16 (m, 2H), 5.10-5.20 (m, 2H), 5.94 (m, 1H), 7.14 (m, 1H), 7.96 (d, 1H, J=3.0 Hz); MS (CI/NH3) m/e 352 (M+H)+.

Workup

  1. temperaturerefluxed for 16 h
  2. customSolvent was evaporated
  3. customthe residue was chromatographed (silica gel; hexane/EtOAc, 5:1 to 1:1)

Sources & evidence

ORD record
ord-965fb7395b454253900a558106a28998
Source dataset
uspto-grants-2000_10
DOI
10.6084/m9.figshare.5104873.v1
Patent number
US06127386

Reaction notes

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On this pageParticipantsProcedureWorkupSources & evidenceReaction notes