Water → HCID 57973805, compound

HRID 1863926Notes

Reaction equation

HRID 1863926 reaction equation
[F:1][C:2]([F:15])([F:14])[C:3]1[N:4]=[CH:5][C:6]2[CH2:12][CH2:11][NH:10][C:9](=[O:13])[C:7]=2[N:8]=1.[C:16](=O)([O-])[O-].[Na+].[Na+].F[B-](F)(F)F.C[O+](C)C.O>ClCCl>[CH3:16][O:13][C:9]1[C:7]2[N:8]=[C:3]([C:2]([F:1])([F:14])[F:15])[N:4]=[CH:5][C:6]=2[CH2:12][CH2:11][N:10]=1

Participants

6

Reactant 4

HCID 962WaterHCID 10340Sodium CarbonateHCID 2735153Oxonium, trimethyl-, tetrafluoroborate(1-) (1:1)HCID 68523413HCID 68523413, compound

Product 1

HCID 57973805HCID 57973805, compound

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent

Procedure

To a vigorously stirred mixture of 336 mg (1.33 mmol) of 2-(trifluoromethyl)-6,7-dihydropyrido[3,4-d]pyrimidin-8(5H)-one and 2.94 g (27.7 mmol) of anhydrous sodium carbonate in 15 mL of dichloromethane was added 979 mg (6.6 mmol) of trimethyloxonium tetrafluoroborate. Vigorous stirring was continued at room temperature for 5.5 h. Then 15 mL of water was added, and the mixture was shaken. After separation of the phases, the aqueous layer was extracted twice with dichloromethane. The combined organic fractions were dried over sodium sulfate, filtered, and concentrated. Purification of the residue by flash chromatography on silica gel (0-2% methanol in dichloromethane) yielded the title compound as a yellow solid. LC-MS 232 (M+1).

Workup

  1. stirringthe mixture was shaken
  2. customAfter separation of the phases
  3. extractionthe aqueous layer was extracted twice with dichloromethane
  4. dry with materialThe combined organic fractions were dried over sodium sulfate
  5. filtrationfiltered
  6. concentrationconcentrated
  7. customPurification of the residue by flash chromatography on silica gel (0-2% methanol in dichloromethane)

Sources & evidence

ORD record
ord-a0243bf99bc442e2a0f82c954d4edfea
Source dataset
uspto-grants-2009_12
Patent number
US07625888B2

Reaction notes

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