Lithium Hydroxide → HCID 58277379, compound

HRID 1949237Notes

Reaction equation

HRID 1949237 reaction equation
[F:1][C:2]1[CH:3]=[C:4]([C:8]2[N:12]([C:13]3[CH:18]=[CH:17][CH:16]=[C:15]([O:19][CH3:20])[CH:14]=3)[N:11]=[C:10]([C:21]([O:23]CC)=[O:22])[CH:9]=2)[CH:5]=[CH:6][CH:7]=1.[OH-].[Li+]>O1CCOCC1.O>[F:1][C:2]1[CH:3]=[C:4]([C:8]2[N:12]([C:13]3[CH:18]=[CH:17][CH:16]=[C:15]([O:19][CH3:20])[CH:14]=3)[N:11]=[C:10]([C:21]([OH:23])=[O:22])[CH:9]=2)[CH:5]=[CH:6][CH:7]=1

Participants

5

Reactant 2

HCID 3939Lithium HydroxideHCID 58277408HCID 58277408, compound

Product 1

HCID 58277379HCID 58277379, compound

Reagents, catalysts & solvents 2

HCID 962WaterSolventHCID 312751,4-DioxaneSolvent

Conditions

Temperature
70 °C

Procedure

34.0 g (99.9 mmol) of the compound of Example 30A are provided in 150 ml of 1,4-dioxane, 150 ml (300 mmol) of a 2N solution of lithium hydroxide in water are added, and the mixture is stirred at 70° C. for 1 h. The mixture is concentrated, a conc. aqueous hydrogen chloride solution is subsequently added to the residue until the pH is acidic, the mixture is extracted with dichloromethane, and the organic phase is dried over magnesium sulfate, filtered and concentrated. The residue is recrystallized from diethyl ether. 26.1 g (84% of theory) of the title compound are obtained.

Workup

  1. concentrationThe mixture is concentrated
  2. additiona conc. aqueous hydrogen chloride solution is subsequently added to the residue until the pH
  3. extractionthe mixture is extracted with dichloromethane
  4. dry with materialthe organic phase is dried over magnesium sulfate
  5. filtrationfiltered
  6. concentrationconcentrated
  7. customThe residue is recrystallized from diethyl ether

Sources & evidence

ORD record
ord-c89f0417023541f893d3d5423c6797fa
Source dataset
uspto-grants-2013_03
Patent number
US08399682B2

Reaction notes

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