Cesium carbonate → N-{4-[5-(2-chlorophenyl)-4-(4-{[2-(trimethylsilyl)ethoxy]methyl}-4H-1,2,4-triazol-3-yl)-1,3-oxazol-2-yl]-5-methylpyridin-2-yl}acetamide

HRID 537056Notes

Reaction equation

HRID 537056 reaction equation
[Cl:1][C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][C:3]=1[C:8]1[O:12][C:11](I)=[N:10][C:9]=1[C:14]1[N:18]([CH2:19][O:20][CH2:21][CH2:22][Si:23]([CH3:26])([CH3:25])[CH3:24])[CH:17]=[N:16][N:15]=1.[CH3:27][C:28]1[C:29](B2OC(C)(C)C(C)(C)O2)=[CH:30][C:31]([NH:34][C:35](=[O:37])[CH3:36])=[N:32][CH:33]=1.C(=O)([O-])[O-].[Cs+].[Cs+]>O1CCOCC1.O.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>[Cl:1][C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][C:3]=1[C:8]1[O:12][C:11]([C:29]2[C:28]([CH3:27])=[CH:33][N:32]=[C:31]([NH:34][C:35](=[O:37])[CH3:36])[CH:30]=2)=[N:10][C:9]=1[C:14]1[N:18]([CH2:19][O:20][CH2:21][CH2:22][Si:23]([CH3:26])([CH3:25])[CH3:24])[CH:17]=[N:16][N:15]=1

Participants

7

Reactant 3

HCID 10796Cesium carbonateHCID 667494963-[5-(2-chlorophenyl)-2-iodo-1,3-oxazol-4-yl]-4-{[2-(trimethylsilyl)-ethoxy]methyl}-4H-1,2,4-triazoleHCID 66749567N-(5-Methyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridin-2-yl)acetamide

Product 1

HCID 66749586N-{4-[5-(2-chlorophenyl)-4-(4-{[2-(trimethylsilyl)ethoxy]methyl}-4H-1,2,4-triazol-3-yl)-1,3-oxazol-2-yl]-5-methylpyridin-2-yl}acetamideYield 81%

Reagents, catalysts & solvents 3

HCID 178418397HCID 178418397, compoundCatalystHCID 962WaterSolventHCID 312751,4-DioxaneSolvent

Procedure

A mixture of 3-[5-(2-chlorophenyl)-2-iodo-1,3-oxazol-4-yl]-4-{[2-(trimethylsilyl)-ethoxy]methyl}-4H-1,2,4-triazole (0.39 g, 0.78 mmol), N-[5-methyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridin-2-yl]acetamide (0.36 g, 1.32 mmol), tetrakis(triphenylphosphine)palladium(0) (0.18 g, 0.16 mmol) and cesium carbonate (1.64 g, 5.04 mmol) in dioxane (13 mL) and water (1.8 mL) was subjected to microwave irradiation at 150° C. for 60 min. The reaction mixture was concentrated and the residue was purified by column chromatography to give N-{4-[5-(2-chlorophenyl)-4-(4-{[2-(trimethylsilyl)ethoxy]methyl}-4H-1,2,4-triazol-3-yl)-1,3-oxazol-2-yl]-5-methylpyridin-2-yl}acetamide (0.33 g, 81%). LCMS (AA): m/z=525.1 (M+H).

Workup

  1. customirradiation at 150° C. for 60 min
  2. concentrationThe reaction mixture was concentrated
  3. customthe residue was purified by column chromatography

Sources & evidence

ORD record
ord-b7a6cf2e4dbc49ecbfea33defac0a403
Source dataset
uspto-grants-2014_10
Patent number
US08859768B2

Reaction notes

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