Sodium Carbonate → 3-(4-quinolin-8-ylphenyl)-1-{[2-(trimethylsilyl)ethoxy]methyl}-1,3-dihydro-2H-imidazo[4,5-b]pyridin-2-one

HRID 587446Notes

Reaction equation

HRID 587446 reaction equation
FC(F)(F)S(O[C:7]1[CH:12]=[CH:11][C:10]([N:13]2[C:17]3=[N:18][CH:19]=[CH:20][CH:21]=[C:16]3[N:15]([CH2:22][O:23][CH2:24][CH2:25][Si:26]([CH3:29])([CH3:28])[CH3:27])[C:14]2=[O:30])=[CH:9][CH:8]=1)(=O)=O.[N:33]1[C:42]2[C:37](=[CH:38][CH:39]=[CH:40][C:41]=2B(O)O)[CH:36]=[CH:35][CH:34]=1.C([O-])([O-])=O.[Na+].[Na+]>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.CC#N>[N:33]1[C:42]2[C:37](=[CH:38][CH:39]=[CH:40][C:41]=2[C:7]2[CH:8]=[CH:9][C:10]([N:13]3[C:17]4=[N:18][CH:19]=[CH:20][CH:21]=[C:16]4[N:15]([CH2:22][O:23][CH2:24][CH2:25][Si:26]([CH3:27])([CH3:28])[CH3:29])[C:14]3=[O:30])=[CH:11][CH:12]=2)[CH:36]=[CH:35][CH:34]=1

Participants

6

Reactant 3

HCID 10340Sodium CarbonateHCID 27343808-Quinolineboronic acidHCID 866606724-(2-oxo-1-{[2-(trimethylsilyl)ethoxy]methyl}-1,2-dihydro-3H-imidazo[4,5-b]pyridin-3-yl)phenyl trifluoromethanesulfonate

Product 1

HCID 585775343-(4-quinolin-8-ylphenyl)-1-{[2-(trimethylsilyl)ethoxy]methyl}-1,3-dihydro-2H-imidazo[4,5-b]pyridin-2-oneYield 85.7%

Reagents, catalysts & solvents 2

HCID 178418397HCID 178418397, compoundCatalystHCID 6342AcetonitrileSolvent

Conditions

Temperature
150 °C

Procedure

The mixture of 4-(2-oxo-1-{[2-(trimethylsilyl)ethoxy]methyl}-1,2-dihydro-3H-imidazo[4,5-b]pyridin-3-yl)phenyl trifluoromethanesulfonate (500 mg), 8-quinolineboronic acid (265 mg), Pd(Ph3P)4 (35.4 mg), 2 M Na2CO3 (1.02 mL) and CH3CN (10 mL) was heated at 150° C. for 20 min under microwave irradiation. The mixture was diluted with sat.NaHCO3aq. at 0° C. and extracted with EtOAc. The organic layer was separated, washed with water and brine, dried over MgSO4 and concentrated in vacuo. The residue was purified by column chromatography (silica gel, eluted with 0%-50% EtOAc in hexane) to give 3-(4-quinolin-8-ylphenyl)-1-{[2-(trimethylsilyl)ethoxy]methyl}-1,3-dihydro-2H-imidazo[4,5-b]pyridin-2-one (410 mg) as white crystals.

Workup

  1. additionThe mixture was diluted with sat.NaHCO3aq
  2. extractionat 0° C. and extracted with EtOAc
  3. customThe organic layer was separated
  4. washwashed with water and brine
  5. dry with materialdried over MgSO4
  6. concentrationconcentrated in vacuo
  7. customThe residue was purified by column chromatography (silica gel, eluted with 0%-50% EtOAc in hexane)

Sources & evidence

ORD record
ord-d64abc72e90946139067eb9aab7db8cd
Source dataset
uspto-grants-2016_01
Patent number
US09226921B2

Reaction notes

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