Hydrogen Peroxide → HCID 58042389, compound

HRID 2048037

Reaction equation

HRID 2048037 reaction equation
[Cl:1][C:2]1[C:3]([O:17][CH2:18][CH:19]2[CH2:22][C:21]([F:24])([F:23])[CH2:20]2)=[N:4][CH:5]=[C:6](B2OC(C)(C)C(C)(C)O2)[CH:7]=1.OO.S([O-])([O-:29])=S>CO>[Cl:1][C:2]1[CH:7]=[C:6]([OH:29])[CH:5]=[N:4][C:3]=1[O:17][CH2:18][CH:19]1[CH2:22][C:21]([F:24])([F:23])[CH2:20]1

Participants

5

Reactant 3

HCID 784Hydrogen PeroxideHCID 9548651Thiosulfite(2-)HCID 580424833-Chloro-2-((3,3-difluorocyclobutyl)methoxy)-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-YL)pyridine

Product 1

HCID 58042389HCID 58042389, compoundYield 81%

Reagents, catalysts & solvents 1

HCID 887MethanolSolvent

Procedure

3-Chloro-2-[(3,3-difluorocyclobutyl)methoxy]-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine (Preparation 4, 4.5 g, 12.5 mmol) was suspended in methanol (30 mL). Hydrogen peroxide (1.6 mL, 21.3 mmol) was added and the mixture stirred at room temperature under nitrogen for 16 hours. An aqueous solution of thiosulfite (10%, 10 mL) was added and the mixture was extracted with EtOAc (2×200 mL). The combined organics were dried over sodium sulfate, filtered, and concentrated in vacuo. The residue was purified by silica gel chromatography (Biotage®, gradient of 0-50% EtOAc in heptane) to afford the title compound (2.53 g, 81%):

Workup

  1. extractionthe mixture was extracted with EtOAc (2×200 mL)
  2. dry with materialThe combined organics were dried over sodium sulfate
  3. filtrationfiltered
  4. concentrationconcentrated in vacuo
  5. customThe residue was purified by silica gel chromatography (Biotage®, gradient of 0-50% EtOAc in heptane)

Sources & evidence

ORD record
ord-975ab379ebe144bd9d22bd0d886a6f7e
Source dataset
uspto-grants-2013_11
Patent number
US08592629B2

Linked notes

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