Cesium carbonate → HCID 89996289, compound

HRID 1480833Notes

Reaction equation

HRID 1480833 reaction equation
FC(F)(F)S(O[C:7]1[C:16]2[C:11](=[CH:12][N:13]=[C:14]([O:17][CH2:18][C:19]3[CH:24]=[CH:23][CH:22]=[CH:21][CH:20]=3)[CH:15]=2)[CH:10]=[CH:9][N:8]=1)(=O)=O.[CH3:27][N:28]1[CH:32]=[C:31](B2OC(C)(C)C(C)(C)O2)[CH:30]=[N:29]1.C(=O)([O-])[O-].[Cs+].[Cs+]>O1CCOCC1.O.CCOC(C)=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>[CH2:18]([O:17][C:14]1[CH:15]=[C:16]2[C:11]([CH:10]=[CH:9][N:8]=[C:7]2[C:31]2[CH:30]=[N:29][N:28]([CH3:27])[CH:32]=2)=[CH:12][N:13]=1)[C:19]1[CH:24]=[CH:23][CH:22]=[CH:21][CH:20]=1

Participants

8

Reactant 3

HCID 10796Cesium carbonateHCID 27739871-Methyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazoleHCID 89996005HCID 89996005, compound

Product 1

HCID 89996289HCID 89996289, compoundYield 86.4%

Reagents, catalysts & solvents 4

HCID 178418397HCID 178418397, compoundCatalystHCID 962WaterSolvent2×HCID 8857Ethyl AcetateSolventHCID 312751,4-DioxaneSolvent

Conditions

Temperature
100 °C

Procedure

To a suspension of 7-(benzyloxy)-2,6-naphthyridin-1-yl trifluoromethanesulfonate (Preparation 87, 350 mg, 0.911 mmol) in 1,4-dioxane (6 mL) and water (3 mL) was added 1-Methylpyrazole-4-boronic acid pinacol ester (379 mg, 1.821 mmol), cesium carbonate (460 mg, 1.412 mmol) and Pd(PPh3)4 (220 mg, 0.190 mmol). The reaction mixture was heated to 100° C. for 30 minutes under microwave conditions. The reaction mixture was diluted with EtOAc (25 mL) and water (25 mL). The organic layer was dried (MgSO4) and concentrated in vacuo. The residue was purified by silica gel column chromatography eluting with 0-15% MeOH in DCM followed by a second chromatography eluting with 0-10% MeOH in DCM to give the title compound (249 mg, 86%).

Workup

  1. dry with materialThe organic layer was dried (MgSO4)
  2. concentrationconcentrated in vacuo
  3. customThe residue was purified by silica gel column chromatography
  4. washeluting with 0-15% MeOH in DCM
  5. washeluting with 0-10% MeOH in DCM

Sources & evidence

ORD record
ord-38ca8fb0f89847b4818567bad23139aa
Source dataset
uspto-grants-2016_08
Patent number
US09409907B2

Reaction notes

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