Ammonium Acetate → HCID 58368483, compound

HRID 1192541Notes

Reaction equation

HRID 1192541 reaction equation
[F:1][C:2]1[CH:3]=[C:4]([C:8]2[C:17]3[C:12](=[CH:13][CH:14]=[CH:15][CH:16]=3)[C:11]([CH3:18])=[N:10][C:9]=2[C:19](=O)[CH3:20])[CH:5]=[CH:6][CH:7]=1.C([O-])(=O)C.[NH4+].C([BH3-])#[N:28].[Na+]>CO.C(#N)C>[F:1][C:2]1[CH:3]=[C:4]([C:8]2[C:17]3[C:12](=[CH:13][CH:14]=[CH:15][CH:16]=3)[C:11]([CH3:18])=[N:10][C:9]=2[CH:19]([NH2:28])[CH3:20])[CH:5]=[CH:6][CH:7]=1

Participants

6

Reactant 3

HCID 517165Ammonium AcetateHCID 5003444Sodium cyanoborohydrideHCID 58368681HCID 58368681, compound

Product 1

HCID 58368483HCID 58368483, compound

Reagents, catalysts & solvents 2

HCID 887MethanolSolventHCID 6342AcetonitrileSolvent

Conditions

Temperature
65 °C

Procedure

A mixture of 1-[4-(3-fluorophenyl)-1-methylisoquinolin-3-yl]ethanone (222 mg, 0.795 mmol) and ammonium acetate (613 mg, 7.95 mmol) in methanol (4.5 mL) and acetonitrile (4.5 mL) was heated at 65° C. in a sealed tube for 30 minutes. After cooling to room temperature, sodium cyanoborohydride (99.9 mg, 1.59 mmol) was added to the resulting mixture. The reaction was heated at 65° C. for another 4 hours, then cooled to room temperature and quenched with sat. sodium bicarbonate and extracted with dichloromethane. The combined extracts were dried over magnesium sulfate and evaporated to dryness. The crude product was used directly in the next step (215 mg, 97%). LCMS calculated for C18H18FN2 (M+H)+: m/z=281.1; Found: 281.1.

Workup

  1. temperatureAfter cooling to room temperature
  2. temperatureThe reaction was heated at 65° C. for another 4 hours
  3. temperaturecooled to room temperature
  4. customquenched with sat. sodium bicarbonate
  5. extractionextracted with dichloromethane
  6. dry with materialThe combined extracts were dried over magnesium sulfate
  7. customevaporated to dryness

Sources & evidence

ORD record
ord-b7fbef774e9f4929bc5e2ee01cb26103
Source dataset
uspto-grants-2014_03
Patent number
US08680108B2

Reaction notes

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