Sodium Carbonate → HCID 69555998, compound

HRID 1369146Notes

Reaction equation

HRID 1369146 reaction equation
[CH3:1][NH:2][C:3]([C:5]1[C:6](I)=[CH:7][C:8]([N:11]2[CH2:16][CH2:15][CH:14]([O:17][Si:18]([C:21]([CH3:24])([CH3:23])[CH3:22])([CH3:20])[CH3:19])[CH2:13][CH2:12]2)=[N:9][CH:10]=1)=[O:4].[Cl:26][C:27]1[CH:32]=[CH:31][CH:30]=[CH:29][C:28]=1B(O)O.C(=O)([O-])[O-].[Na+].[Na+]>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.C(COC)OC>[CH3:1][NH:2][C:3]([C:5]1[C:6]([C:28]2[CH:29]=[CH:30][CH:31]=[CH:32][C:27]=2[Cl:26])=[CH:7][C:8]([N:11]2[CH2:16][CH2:15][CH:14]([O:17][Si:18]([C:21]([CH3:24])([CH3:23])[CH3:22])([CH3:20])[CH3:19])[CH2:13][CH2:12]2)=[N:9][CH:10]=1)=[O:4]

Participants

6

Reactant 3

HCID 10340Sodium CarbonateHCID 27343222-Chlorophenylboronic acidHCID 69557648HCID 69557648, compound

Product 1

HCID 69555998HCID 69555998, compoundYield 91.5%

Reagents, catalysts & solvents 2

HCID 178418397HCID 178418397, compoundCatalystHCID 80711,2-DimethoxyethaneSolvent

Conditions

Temperature
90 °C

Procedure

A mixture of 480 mg (1.01 mmol) 4-(tert-butyl-dimethyl-silanyloxy)-4′-iodo-3,4,5,6-tetrahydro-2H-[1,2′]bipyridinyl-5′-carboxylic acid methylamide, 174 mg (1.11 mmol) 2-chlorophenylboronic acid, 6 ml dimethoxyethane and 1 ml of a 2 M aqueous solution of sodium carbonate was deoxygenated by three freeze-thaw cycles. After addition of 60 mg (0.052 mmol) tetrakis(triphenylphosphine)palladium(0) the reaction mixture was stirred at 90° C. for 3 h. Cooling to room temperature was followed by dilution with water and extraction with ethyl acetate. The organic extract was washed with saturated aqueous sodium carbonate and sodium chloride solutions, dried with sodium sulfate and concentrated. Column chromatography afforded 425 mg (91.5%) of the title compound as an off-white solid.

Workup

  1. customwas deoxygenated by three freeze-thaw cycles
  2. temperatureCooling to room temperature
  3. extractionwas followed by dilution with water and extraction with ethyl acetate
  4. extractionThe organic extract
  5. washwas washed with saturated aqueous sodium carbonate and sodium chloride solutions
  6. dry with materialdried with sodium sulfate
  7. concentrationconcentrated

Sources & evidence

ORD record
ord-2484666717e649eba1855e31cb09e90f
Source dataset
uspto-grants-2003_06
Patent number
US06576762B2

Reaction notes

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