Cesium fluoride → HCID 70978664, compound

HRID 1852208Notes

Reaction equation

HRID 1852208 reaction equation
Cl[C:2]1[C:11]2[C:6](=[CH:7][CH:8]=[CH:9][CH:10]=2)[C:5]([O:12][CH:13]2[CH2:15][CH2:14]2)=[CH:4][N:3]=1.[F-:16].[Cs+]>CS(C)=O.O>[F:16][C:2]1[C:11]2[C:6](=[CH:7][CH:8]=[CH:9][CH:10]=2)[C:5]([O:12][CH:13]2[CH2:15][CH2:14]2)=[CH:4][N:3]=1

Participants

5

Reactant 2

HCID 25953Cesium fluorideHCID 86683264HCID 86683264, compound

Product 1

HCID 70978664HCID 70978664, compoundYield 37.6%

Reagents, catalysts & solvents 2

HCID 679Dimethyl SulfoxideSolventHCID 962WaterSolvent

Conditions

Temperature
145 °C

Procedure

To a solution of 1-chloro-4-cyclopropoxyisoquinolin (2.3 g, 10.47 mmol) in DMSO (20 ml) was added cesium fluoride (6.36 g, 41.9 mmol) at room temperature. The reaction vessel (Pressure tube) was sealed and heated at 145° C. for 18 h. The reaction mass was diluted with water and extracted with ethyl acetate. The organic layer was dried over anhydrous Na2SO4 and evaporated under reduced pressure to get crude compound. The crude compound was purified by silica gel chromatography to get desired compound (0.8 g, 37.6%) as a white solid. 1H NMR (400 MHz, CDCl3): δ ppm 8.09-8.07 (m, 2H), 7.83 (s, 1H), 7.76-7.71 (m, 1H), 7.67-7.63 (m, 1H), 3.96-3.94 (m, 1H), 0.90-0.89 (m, 4H); 19F NMR: δ ppm −78.58 (1F); MS: MS m/z 204.2 (M++1).

Workup

  1. customThe reaction vessel (Pressure tube) was sealed
  2. extractionextracted with ethyl acetate
  3. dry with materialThe organic layer was dried over anhydrous Na2SO4
  4. customevaporated under reduced pressure
  5. customto get crude compound
  6. customThe crude compound was purified by silica gel chromatography

Sources & evidence

ORD record
ord-d50b54349e1c40d784587e47899a7be8
Source dataset
uspto-grants-2015_02
Patent number
US08957203B2

Reaction notes

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