2,2-Dichloro-3-oxocyclobutyl pivalate → 3-Oxocyclobutyl pivalate

HRID 552807Notes

Reaction equation

HRID 552807 reaction equation
[C:1]([O:7][CH:8]1[CH2:11][C:10](=[O:12])[C:9]1(Cl)Cl)(=[O:6])[C:2]([CH3:5])([CH3:4])[CH3:3]>CC(O)=O.[Zn]>[C:1]([O:7][CH:8]1[CH2:11][C:10](=[O:12])[CH2:9]1)(=[O:6])[C:2]([CH3:5])([CH3:4])[CH3:3]

Participants

4

Reactant 1

HCID 575158702,2-Dichloro-3-oxocyclobutyl pivalate

Product 1

HCID 533969923-Oxocyclobutyl pivalate

Reagents, catalysts & solvents 2

HCID 23994ZincCatalystHCID 176Acetic AcidSolvent2×

Procedure

To a stirred suspension of zinc dust (103 g, 1568 mmol) in HOAc (200 ml) was added a solution of 2,2-dichloro-3-oxocyclobutyl pivalate (75 g, 314 mmol) in HOAc (400 ml) dropwise in an ice bath. The reaction mixture was stirred for 1 h, filtered the solid through celite and washed with DCM. The DCM layer was washed with H2O, NaHCO3, brine, dried over MgSO4, filtered and concentrated. The crude material was purified by ISCO (10% EtOAc/Hexanes) to give the title compound as a light yellow oil.

Workup

  1. filtrationfiltered the solid through celite
  2. washwashed with DCM
  3. washThe DCM layer was washed with H2O, NaHCO3, brine
  4. dry with materialdried over MgSO4
  5. filtrationfiltered
  6. concentrationconcentrated
  7. customThe crude material was purified by ISCO (10% EtOAc/Hexanes)

Sources & evidence

ORD record
ord-033e3c76d0f245f8b8d8069e7fa725d6
Source dataset
uspto-grants-2011_05
Patent number
US07951838B2

Reaction notes

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