Hydrochloric Acid → HCID 57785913, compound

HRID 1399214Notes

Reaction equation

HRID 1399214 reaction equation
[Cl:1][C:2]1[C:10]2[N:9]=[C:8]3[N:11]([C:15]4[CH:22]=[CH:21][C:18]([C:19]#[N:20])=[CH:17][C:16]=4[CH3:23])[CH2:12][CH2:13][CH2:14][N:7]3[C:6]=2[C:5]([CH:24]=[O:25])=[CH:4][CH:3]=1.C[Si](C)(C)[C:28]([F:31])([F:30])[F:29].[F-].C([N+](CCCC)(CCCC)CCCC)CCC.Cl>O1CCCC1.C(OCC)(=O)C>[Cl:1][C:2]1[C:10]2[N:9]=[C:8]3[N:11]([C:15]4[CH:22]=[CH:21][C:18]([C:19]#[N:20])=[CH:17][C:16]=4[CH3:23])[CH2:12][CH2:13][CH2:14][N:7]3[C:6]=2[C:5]([CH:24]([OH:25])[C:28]([F:31])([F:30])[F:29])=[CH:4][CH:3]=1

Participants

7

Reactant 4

HCID 313Hydrochloric AcidHCID 552549(Trifluoromethyl)trimethylsilaneHCID 2724141Tetrabutylammonium FluorideHCID 57786302HCID 57786302, compound

Product 1

HCID 57785913HCID 57785913, compoundYield 82.1%

Reagents, catalysts & solvents 2

HCID 8028TetrahydrofuranSolvent2×HCID 8857Ethyl AcetateSolvent

Procedure

To a stirred solution of 4-(9-chloro-6-formyl-3,4-dihydropyrimido[1,2-a]benzimidazol-1(2H)-yl)-3-methylbenzonitrile (68.5 mg, 0.195 mmol) and trimethyl(trifluoromethyl)silane (86.5 μL, 0.585 mmol) in tetrahydrofuran (1.0 mL) was added a solution of tetrabutylammonium fluoride in tetrahydrofuran (1.0 M, 19.5 μL, 0.0195 mL) at 0° C. After 10 min, hydrochloric acid (1.0 M, 0.3 mL) was added. After 30 min, the reaction mixture was diluted with ethyl acetate, washed with aqueous sodium hydrogen carbonate and brine, dried over sodium sulfate, filtered, and concentrated in vacuo. The resulting solid was washed with diisopropyl ether to give the title compound as a pale yellow solid (67.4 mg, 0.160 mmol, 82%).

Workup

  1. waitAfter 30 min
  2. washwashed with aqueous sodium hydrogen carbonate and brine
  3. dry with materialdried over sodium sulfate
  4. filtrationfiltered
  5. concentrationconcentrated in vacuo
  6. washThe resulting solid was washed with diisopropyl ether

Sources & evidence

ORD record
ord-114849e8b2bf4abfa538de18e53c44df
Source dataset
uspto-grants-2014_12
Patent number
US08901141B2

Reaction notes

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