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Methyl iodide → 1-(4-Fluoro-2,3-dihydroindol-1-yl)-2-(4-methoxy-6-morpholin-4-ylpyrimidin-2-yl)propan-1-one

HRID 2278585
Notes
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Reaction equation

HRID 2278585 reaction equation
[F:1][C:2]1[CH:10]=[CH:9][CH:8]=[C:7]2[C:3]=1[CH2:4][CH2:5][N:6]2[C:11](=[O:27])[CH2:12][C:13]1[N:18]=[C:17]([O:19][CH3:20])[CH:16]=[C:15]([N:21]2[CH2:26][CH2:25][O:24][CH2:23][CH2:22]2)[N:14]=1.[CH3:28][Si]([N-][Si](C)(C)C)(C)C.[K+].CI>O1CCCC1.[Cl-].[NH4+].C(OCC)(=O)C>[F:1][C:2]1[CH:10]=[CH:9][CH:8]=[C:7]2[C:3]=1[CH2:4][CH2:5][N:6]2[C:11](=[O:27])[CH:12]([C:13]1[N:18]=[C:17]([O:19][CH3:20])[CH:16]=[C:15]([N:21]2[CH2:26][CH2:25][O:24][CH2:23][CH2:22]2)[N:14]=1)[CH3:28]
ParticipantsConditionsProcedureWorkupSources & evidenceReaction notes

Participants

7

Reactant 3

HCID 6328Methyl iodideHCID 3251421Potassium bis(trimethylsilyl)amideHCID 682817151-(4-Fluoro-2,3-dihydroindol-1-yl)-2-(4-methoxy-6-morpholin-4-ylpyrimidin-2-yl)ethanone

Product 1

HCID 682815811-(4-Fluoro-2,3-dihydroindol-1-yl)-2-(4-methoxy-6-morpholin-4-ylpyrimidin-2-yl)propan-1-one

Reagents, catalysts & solvents 3

HCID 8028
Tetrahydrofuran
Solvent
2×
HCID 8857Ethyl AcetateSolvent
HCID 25517Ammonium ChlorideSolvent

Conditions

Temperature
-78 °C

Procedure

300 mg of 1-(4-fluoro-2,3-dihydroindol-1-yl)-2-(4-methoxy-6-morpholin-4-yl-pyrimidin-2-yl)ethanone dissolved in 10 ml of tetrahydrofuran are cooled to −78° C. using a dry ice bath. 2.65 ml of 1N potassium bis(trimethylsilyl)amide in THF are slowly added while maintaining the temperature at −75° C. After 30 minutes of stirring, 0.125 ml of methyl iodide is added and the stirring is continued for 2 h 15. The reaction mixture is diluted with 50 ml of a saturated ammonium chloride solution and 30 ml of ethyl acetate. After settling out, the organic phase is washed with 5 times 15 ml of water, dried over magnesium sulfate, filtered, and then concentrated under reduced pressure. The residue is purified by silica column chromatography, elution being carried out with a 99/01 mixture of dichloromethane and methanol, so as to give 215 mg of 1-(4-fluoro-2,3-dihydroindol-1-yl)-2-(4-methoxy-6-morpholin-4-ylpyrimidin-2-yl)propan-1-one in the form of a white solid, the characteristics of which are the following:

Workup

  1. temperaturewhile maintaining the temperature at −75° C
  2. waitthe stirring is continued for 2 h
  3. washthe organic phase is washed with 5 times 15 ml of water
  4. dry with materialdried over magnesium sulfate
  5. filtrationfiltered
  6. concentrationconcentrated under reduced pressure
  7. customThe residue is purified by silica column chromatography, elution
  8. additionbeing carried out with a 99/01 mixture of dichloromethane and methanol

Sources & evidence

ORD record
ord-0dce945062ce47eba153b0a9ca18cfdb
Source dataset
uspto-grants-2015_09
DOI
10.6084/m9.figshare.5104873.v1
Patent number
US09133168B2

Reaction notes

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