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4-Vinylpyridine → HCID 54192486, compound

HRID 1780311
Notes
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Reaction equation

HRID 1780311 reaction equation
Br[C:2]1[CH:3]=[C:4]([O:9][CH2:10][C@@H:11]2[CH2:15][CH2:14][CH2:13][N:12]2[C:16]([O:18][C:19]([CH3:22])([CH3:21])[CH3:20])=[O:17])[CH:5]=[N:6][C:7]=1[Cl:8].[CH:23]([C:25]1[CH:30]=[CH:29][N:28]=[CH:27][CH:26]=1)=[CH2:24].C1(C)C=CC=CC=1P(C1C=CC=CC=1C)C1C=CC=CC=1C.C(=O)(O)[O-].[Na+]>C(#N)C.C([O-])(=O)C.[Pd+2].C([O-])(=O)C.C(N(CC)CC)C>[N:28]1[CH:29]=[CH:30][C:25]([CH:23]=[CH:24][C:2]2[CH:3]=[C:4]([O:9][CH2:10][C@@H:11]3[CH2:15][CH2:14][CH2:13][N:12]3[C:16]([O:18][C:19]([CH3:22])([CH3:21])[CH3:20])=[O:17])[CH:5]=[N:6][C:7]=2[Cl:8])=[CH:26][CH:27]=1
ParticipantsConditionsProcedureWorkupSources & evidenceReaction notes

Participants

8

Reactant 4

HCID 75024-VinylpyridineHCID 80271Tri-o-tolylphosphineHCID 516892Sodium BicarbonateHCID 22872668HCID 22872668, compound

Product 1

HCID 54192486HCID 54192486, compoundYield 53%

Reagents, catalysts & solvents 3

HCID 167845
palladium(II) acetate
Catalyst
HCID 6342AcetonitrileSolvent
HCID 8471TriethylamineSolvent

Conditions

Temperature
100 °C

Procedure

To a solution of 5-bromo-6-chloro-3-(1-BOC-2-(S)-pyrrolidinylmethoxy)pyridine (500 mg, 1.28 mmol) in acetonitrile (4.0 mL) was added 4-vinylpyridine (156 mg, 1.5 mmol), palladium acetate (29.0 mg, 0.12 mmol), tri-o-tolylphosphine (156 mg, 0.12 mmol) and triethylamine (3.2 mL). The reaction mixture was heated in a sealed tube at 100° C. overnight, then cooled to room temperature. Minimum amount of saturated sodium bicarbonate was added to free the amine hydrochloride salt, and the mixture was extracted with EtOAc, dried (MgSO4), and concentrated. The residue was chromatographed on a silica gel column, eluting with 4 to 50% ether in hexane) to give the title compound (282 mg). MS (CI/NH3) m/z 416 (M+H)+.

Workup

  1. temperaturecooled to room temperature
  2. extractionthe mixture was extracted with EtOAc
  3. dry with materialdried (MgSO4)
  4. concentrationconcentrated
  5. customThe residue was chromatographed on a silica gel column
  6. washeluting with 4 to 50% ether in hexane)

Sources & evidence

ORD record
ord-29a10f84a8eb499b853a5cc95ad613e5
Source dataset
uspto-grants-1997_05
DOI
10.6084/m9.figshare.5104873.v1
Patent number
US05629325

Reaction notes

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On this pageParticipantsConditionsProcedureWorkupSources & evidenceReaction notes