Bicarbonate Ion → HCID 18455731, compound

HRID 1272498Notes

Reaction equation

HRID 1272498 reaction equation
Br[C:2]1[CH:3]=[C:4]2[C:9](=[CH:10][CH:11]=1)[N:8]=[CH:7][N:6]([C:12](=[O:16])[CH2:13][CH2:14][OH:15])[C:5]2=[O:17].[Cl:18][C:19]1[CH:24]=[CH:23][CH:22]=[C:21]([O:25][CH3:26])[C:20]=1B(O)O.C(=O)([O-])[O-].[K+].[K+].C1(P(C2C=CC=CC=2)C2C=CC=CC=2)C=CC=CC=1.C(=O)(O)[O-]>CN(C)C(=O)C.C(O)C.O.C1C=CC(/C=C/C(/C=C/C2C=CC=CC=2)=O)=CC=1.C1C=CC(/C=C/C(/C=C/C2C=CC=CC=2)=O)=CC=1.C1C=CC(/C=C/C(/C=C/C2C=CC=CC=2)=O)=CC=1.[Pd].[Pd].C(Cl)Cl>[Cl:18][C:19]1[CH:24]=[CH:23][CH:22]=[C:21]([O:25][CH3:26])[C:20]=1[C:2]1[CH:3]=[C:4]2[C:9](=[CH:10][CH:11]=1)[N:8]=[CH:7][N:6]([C:12](=[O:16])[CH2:13][CH2:14][OH:15])[C:5]2=[O:17]

Participants

11

Reactant 5

HCID 769Bicarbonate IonHCID 11430Potassium CarbonateHCID 11776TriphenylphosphineHCID 33782712-Chloro-6-methoxyphenylboronic acidHCID 18455748HCID 18455748, compound

Product 1

HCID 18455731HCID 18455731, compoundYield 24.3%

Reagents, catalysts & solvents 5

HCID 9811564Bis(dibenzylideneacetone)palladiumCatalystHCID 702EthanolSolventHCID 962WaterSolventHCID 6344DichloromethaneSolventHCID 31374DimethylacetamideSolvent

Procedure

To a solution of 6-Bromo-3-(3-hydroxy-propionyl)-3H-quinazolin-4-one (11.6 mg, 0.039 mmol) dissolved in 1 ml N,N-dimethylacetamide in a 20 ml vial, 2-chloro-6-methoxy-phenylboronic acid (14.55 mg, 0.078 mmol) dissolved in 0.5 ml ethanol and potassium carbonate (5.92 mg, 0.043 mmol) dissolved in 0.5 ml water were added. Triphenylphosphine (1 mg, 3.8 umol) and tris(dibenzylideneacetone)dipalladium (0) (0.7 mg, 0.78 umol) were added to the mixture which refluxed overnight. The crude product was poured into 5 ml saturated bicarbonate solution and methylene chloride was used to extract the product. Solvent in the organic phase was removed under vacuum. The resulted residue was purified by preparative HPLC. 3.4 mg product was obtained. Yield: 24.3%; 1H NMR (500 MHz, DMSO-d6): δ 2.75538–2.78226(t, J=6.835 Hz, 2H), 3.70334(s, 3H), 4.15877–4.18594 (t, J=6.785 Hz, 2H), 7.13724–7.15535 (dd, J1=8.68 Hz, J2=0.75 Hz, 1H), 7.18337–7.20169 (dd, J1=8.375 Hz, J2=0.885 Hz, 1H), 7.41001–7.44275 (dd, J1=8.215 Hz, J2=8.185 Hz, 1H), 7.66453–7.68523 (dd, J1=8.38 Hz, J2=2.0 Hz, 1H), 7.72 (d, J=8.4 Hz, 1H), 7.96 (d, J=1.9 Hz, 1H), 8.41 (s, 1H); ESI-MS: m/z 359 (M++1)

Workup

  1. additionwere added
  2. temperaturerefluxed overnight
  3. extractionto extract the product
  4. customSolvent in the organic phase was removed under vacuum
  5. customThe resulted residue was purified by preparative HPLC

Sources & evidence

ORD record
ord-7f11164dbc9448fca11e8636f69c4767
Source dataset
uspto-grants-2007_04
Patent number
US07208493B2

Reaction notes

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