3-Nitrophenylboronic Acid → HCID 69043081, compound

HRID 1894906Notes

Reaction equation

HRID 1894906 reaction equation
[N+:1]([C:4]1[CH:5]=[C:6](B(O)O)[CH:7]=[CH:8][CH:9]=1)([O-:3])=[O:2].I[C:14]1[CH:15]=[C:16]([NH:21][C:22](=[O:33])[C:23]2[CH:28]=[CH:27][CH:26]=[C:25]([C:29]([F:32])([F:31])[F:30])[CH:24]=2)[CH:17]=[N:18][C:19]=1[CH3:20].C(=O)([O-])[O-].[K+].[K+]>C1(C)C=CC=CC=1.C(O)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>[CH3:20][C:19]1[N:18]=[CH:17][C:16]([NH:21][C:22](=[O:33])[C:23]2[CH:28]=[CH:27][CH:26]=[C:25]([C:29]([F:32])([F:30])[F:31])[CH:24]=2)=[CH:15][C:14]=1[C:6]1[CH:7]=[CH:8][CH:9]=[C:4]([N+:1]([O-:3])=[O:2])[CH:5]=1

Participants

8

Reactant 3

HCID 16773-Nitrophenylboronic AcidHCID 11430Potassium CarbonateHCID 69042846N-(5-iodo-6-methylpyridin-3-yl)-3-(trifluoromethyl)benzamide

Product 1

HCID 69043081HCID 69043081, compoundYield 75%

Reagents, catalysts & solvents 4

HCID 178418397HCID 178418397, compoundCatalystHCID 702EthanolSolventHCID 962WaterSolventHCID 1140TolueneSolvent

Procedure

(3-Nitrophenyl)boronic acid (0.086 g, 0.52 mmol) was mixed with N-(5-iodo-6-methylpyridin-3-yl)-3-(trifluoromethyl)benzamide (0.21 g, 0.52 mmol) and potassium carbonate (0.13 g, 0.91 mmol) in toluene (3.8 mL), ethanol (0.56 mL) and water (0.5 mL) and the solution was degassed. Into the reaction was added tetrakis(triphenylphosphine)palladium(0) (0.025 g, 0.022 mmol) and was refluxed for 18 hours. The reaction was extracted with EtOAc and the organic extracts were washed with water, saturated NaCl, dried (MgSO4) and stripped in vacuo. The residue was purified by column chromatography using 40% EtOAc/hexanes to give the product (0.156 g, 75% yield). 1H NMR (400 MHZ, CDCl3): δ 8.67 (d, 1H), 8.28 (m, 2H), 8.16 (brs, 1H), 8.11 (m, 1H), 7.99 (brs, 1H), 7.85 (m, 1H), 7.69 (m, 4H), 2.52 (s, 3H); MS (ES) (M+H)=402.

Workup

  1. customthe solution was degassed
  2. temperaturewas refluxed for 18 hours
  3. extractionThe reaction was extracted with EtOAc
  4. washthe organic extracts were washed with water, saturated NaCl
  5. dry with materialdried (MgSO4)
  6. customThe residue was purified by column chromatography

Sources & evidence

ORD record
ord-6025d6cba47b4ba68d50238c4f6c5747
Source dataset
uspto-grants-2013_08
Patent number
US08513270B2

Reaction notes

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