Pyridine → 5-(4-Fluorobenzoyl)-6-trifluoromethylsulfonyloxy-2-methylsulfonylnaphthalene

HRID 1738309Notes

Reaction equation

HRID 1738309 reaction equation
N1C=CC=CC=1.FC(F)(F)S([O:12][S:13]([C:16]([F:19])([F:18])[F:17])(=[O:15])=[O:14])(=O)=O.[F:22][C:23]1[CH:45]=[CH:44][C:26]([C:27]([C:29]2[C:38](O)=[CH:37][CH:36]=[C:35]3[C:30]=2[CH:31]=[CH:32][C:33]([S:40]([CH3:43])(=[O:42])=[O:41])=[CH:34]3)=[O:28])=[CH:25][CH:24]=1.S(=O)(=O)(O)[O-].[Na+]>C(Cl)Cl>[F:22][C:23]1[CH:24]=[CH:25][C:26]([C:27]([C:29]2[C:38]([O:12][S:13]([C:16]([F:17])([F:18])[F:19])(=[O:14])=[O:15])=[CH:37][CH:36]=[C:35]3[C:30]=2[CH:31]=[CH:32][C:33]([S:40]([CH3:43])(=[O:42])=[O:41])=[CH:34]3)=[O:28])=[CH:44][CH:45]=1

Participants

6

Reactant 4

HCID 1049Pyridine2×HCID 67749Trifluoromethanesulfonic anhydride2×HCID 516919Sodium BisulfateHCID 15434620HCID 15434620, compound

Product 1

HCID 221256945-(4-Fluorobenzoyl)-6-trifluoromethylsulfonyloxy-2-methylsulfonylnaphthaleneYield 108.6%

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent

Procedure

Pyridine (0.38 ml, 4.65 mmol) and trifluoromethanesulfonic anhydride (0.39 ml, 2.32 mmol) were added to a solution of 5-(4-fluorobenzoyl)-6-hydroxy-2-methylsulfonylnaphthalene (0.4 g, 1.16 mmol), [prepared as described in Example 2, step 3 above], in methylene chloride (10 ml) at 0° C. After 0.5 h, additional amounts of pyridine (0.38 ml, 4.65 mmol) and trifluoromethanesulfonic anhydride (0.39 ml, 2.32 mmol) were added and stirring was continued. After 0.5 h, 1N sodium bisulfate was added and the stirring was continued for an additional 30 minutes. The organic layer was separated, washed with brine, and dried over sodium sulfate. The solvent was removed in vacuo to give 0.6 g of 5-(4-fluorobenzoyl)-6-trifluoromethylsulfonyloxy-2-methylsulfonylnaphthalene as an oil (90% yield).

Workup

  1. waitAfter 0.5 h
  2. waitthe stirring was continued for an additional 30 minutes
  3. customThe organic layer was separated
  4. washwashed with brine
  5. dry with materialdried over sodium sulfate
  6. customThe solvent was removed in vacuo

Sources & evidence

ORD record
ord-ebd587fb714147718924edd4dbbfdbf1
Source dataset
uspto-grants-1999_10
Patent number
US05962531

Reaction notes

Loading…