Acetic Acid → HCID 86749971, compound

HRID 1899798Notes

Reaction equation

HRID 1899798 reaction equation
[C:1]([O:4][C:5]([C:7]([F:21])([F:20])[C@@:8](C(=O)C)([C@@H:10]([CH:12]([C:14](=[O:16])[CH3:15])[OH:13])[OH:11])[OH:9])=[O:6])(=[O:3])[CH3:2].CC(C)([O-])C.[K+].C(O)(=O)C>O1CCCC1>[C:1]([O:4][C:5]([C:7]([F:20])([F:21])[C@@H:8]([C@@H:10]([CH:12]([C:14](=[O:16])[CH3:15])[OH:13])[OH:11])[OH:9])=[O:6])(=[O:3])[CH3:2]

Participants

5

Conditions

Temperature
-65 °C

Procedure

To a solution of 0.995 g (2.6 mmol) of 1-(acetoxy)-3,5-bis(acetyl)-2-deoxy-2,2-difluororibose in tetrahydrofuran (10ml) at -65° C. were added 5.1 ml of a 1M solution of potassium t-butoxide in tetrahydrofuran (5.1 mmol) dropwise over 10 minutes. The reaction mixture was stirred 3 hours at -65° C. and then 0.58 ml of glacial acetic acid (10.2 mmol) were added to quench the reaction. The reaction mixture was then allowed to warm to room temperature and was concentrated under reduced pressure. The residue was dissolved in ethyl acetate and washed with water. Organics were dried with sodium sulfate and concentrated under reduced pressure. The residue was triturated with diethyl ether (10 ml) and the resulting solid was dried under reduced pressure at 40° C. to give 0.63 g of 1-(acetoxy)-5-(acetyl)-2-deoxy-2,2-difluororibose.

Workup

  1. customto quench
  2. customthe reaction
  3. temperatureto warm to room temperature
  4. concentrationwas concentrated under reduced pressure
  5. dissolutionThe residue was dissolved in ethyl acetate
  6. washwashed with water
  7. dry with materialOrganics were dried with sodium sulfate
  8. concentrationconcentrated under reduced pressure
  9. customThe residue was triturated with diethyl ether (10 ml)
  10. customthe resulting solid was dried under reduced pressure at 40° C.

Sources & evidence

ORD record
ord-23dcd1898033471298f62ca98df1a72e
Source dataset
uspto-grants-1996_11
Patent number
US05574021

Reaction notes

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