Acetonitrile → 2-(1-isopropyl-1H-pyrazol-5-yl)-5,6-dihydrobenzo[f]imidazo[1,2-d][1,4]oxazepine-9-carboxylic acid

HRID 886358Notes

Reaction equation

HRID 886358 reaction equation
I[C:2]1[N:3]=[C:4]2[C:10]3[CH:11]=[CH:12][C:13]([C:15]([O:17]C)=[O:16])=[CH:14][C:9]=3[O:8][CH2:7][CH2:6][N:5]2[CH:19]=1.[CH:20]([N:23]1[C:27](B2OC(C)(C)C(C)(C)O2)=[CH:26][CH:25]=[N:24]1)([CH3:22])[CH3:21].C(=O)([O-])[O-].[K+].[K+].C(#N)C>CCOC(C)=O.Cl[Pd](Cl)([P](C1C=CC=CC=1)(C1C=CC=CC=1)C1C=CC=CC=1)[P](C1C=CC=CC=1)(C1C=CC=CC=1)C1C=CC=CC=1>[CH:20]([N:23]1[C:27]([C:2]2[N:3]=[C:4]3[C:10]4[CH:11]=[CH:12][C:13]([C:15]([OH:17])=[O:16])=[CH:14][C:9]=4[O:8][CH2:7][CH2:6][N:5]3[CH:19]=2)=[CH:26][CH:25]=[N:24]1)([CH3:22])[CH3:21]

Participants

7

Reactant 4

HCID 6342AcetonitrileHCID 11430Potassium CarbonateHCID 567767101-(Propan-2-yl)-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazoleHCID 58204516Methyl 2-iodo-5,6-dihydroimidazo[1,2-d][1,4]benzoxazepine-9-carboxylate

Product 1

HCID 582046682-(1-isopropyl-1H-pyrazol-5-yl)-5,6-dihydrobenzo[f]imidazo[1,2-d][1,4]oxazepine-9-carboxylic acidYield 185.9%

Reagents, catalysts & solvents 2

HCID 178418476HCID 178418476, compoundCatalystHCID 8857Ethyl AcetateSolvent

Procedure

Methyl 2-iodo-5,6-dihydrobenzo[f]imidazo[1,2-d][1,4]oxazepine-9-carboxylate (0.6 g, 2.0 mmol), prepared according to Example 40, 1-isopropyl-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole (0.477 mmol, 2.02 mmol) and bis(triphenylphosphine)palladium(II) chloride (0.059 g, 0.084 mmol) were combined in a 35-mL microwaveable vessel. Subsequently, potassium carbonate (1.0 M in water, 5 mL) and acetonitrile (5 mL) were added. The reaction vessel was then subjected to microwave irradiation at 140° C. for 20 min. The mixture was diluted further with EtOAc and the product was isolated via acid-base extraction to provide 0.3 g (50% yield) of 2-(1-isopropyl-1H-pyrazol-5-yl)-5,6-dihydrobenzo[f]imidazo[1,2-d][1,4]oxazepine-9-carboxylic acid.

Workup

  1. customwere combined in a 35-mL microwaveable vessel
  2. customirradiation at 140° C. for 20 min
  3. customthe product was isolated via acid-base extraction

Sources & evidence

ORD record
ord-e2c2fb9c191b4fa9add7262755602cef
Source dataset
uspto-grants-2012_08
Patent number
US08242104B2

Reaction notes

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