Water → HCID 71586281, compound

HRID 1465558Notes

Reaction equation

HRID 1465558 reaction equation
[OH:1][C:2]1[CH:7]=[C:6]([CH3:8])[C:5]([C:9]2[N:10]=[C:11]([NH:14][C:15](=[O:22])[C:16]3[CH:21]=[CH:20][N:19]=[CH:18][CH:17]=3)[S:12][CH:13]=2)=[C:4]([CH3:23])[CH:3]=1.C(=O)([O-])[O-].[Cs+].[Cs+].Br[C:31]1[CH:32]=[CH:33][C:34]([O:37][CH2:38][CH2:39][O:40][CH3:41])=[N:35][CH:36]=1.O>CN(C=O)C>[CH3:41][O:40][CH2:39][CH2:38][O:37][C:34]1[N:35]=[CH:36][C:31]([O:1][C:2]2[CH:3]=[C:4]([CH3:23])[C:5]([C:9]3[N:10]=[C:11]([NH:14][C:15](=[O:22])[C:16]4[CH:21]=[CH:20][N:19]=[CH:18][CH:17]=4)[S:12][CH:13]=3)=[C:6]([CH3:8])[CH:7]=2)=[CH:32][CH:33]=1

Participants

6

Reactant 4

HCID 962WaterHCID 10796Cesium carbonateHCID 225027175-Bromo-2-(2-methoxyethoxy)pyridineHCID 86690827HCID 86690827, compound

Product 1

HCID 71586281HCID 71586281, compoundYield 66%

Reagents, catalysts & solvents 1

HCID 6228DimethylformamideSolvent

Conditions

Temperature
105 °C

Procedure

To a solution of N-(4-(4-Hydroxy-2,6-dimethylphenyl)-thiazol-2-yl)isonicotinamide (5-3, 0.98 g, 3.0 mmol) in DMF (10 mL) were added cesium carbonate (1.95 g, 6.0 mmol, 2.0 equiv) and Cu (58.5 mg, 0.90 mmol, 0.3 equiv). The mixture was stirred at 100-110° C. for 1.0 h and added with 5-bromo-2-(2-methoxyethoxy)pyridine (17-2, 1.04 g, 4.5 mmol). The solution heated at 130° C. for 24 h. The reaction mixture was added with water (40 mL) and extracted with EtOAc. The organic layer was washed with saturated brine and dried over anhydrous magnesium sulfate. The solvent was evaporated under reduced pressure, and the residue was purified by column chromatography (NH silica gel, hexane/ethyl acetate=3/1-1/3) to give 17 (0.94 g) in 66% yield: 1H NMR (500 MHz, CDCl3) δ 8.81 (d, 2 H), 7.93 (d, 1 H), 7.88 (d, 2 H), 7.32 (m, 1 H), 6.82 (d, 2 H), 6.57 (s, 2 H), 4.45 (t, 2 H), 3.75 (t, 2 H), 3.44 (s, 3 H), 1.99 (s, 6 H), ESI-MS=m/z 477.2 (M+H)+.

Workup

  1. temperatureThe solution heated at 130° C. for 24 h
  2. extractionextracted with EtOAc
  3. washThe organic layer was washed with saturated brine
  4. dry with materialdried over anhydrous magnesium sulfate
  5. customThe solvent was evaporated under reduced pressure
  6. customthe residue was purified by column chromatography (NH silica gel, hexane/ethyl acetate=3/1-1/3)

Sources & evidence

ORD record
ord-a6f7468ec0134148b05111c1b480b1b0
Source dataset
uspto-grants-2015_04
Patent number
US08999983B2

Reaction notes

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