Triacetoxyperiodinane → tert-Butyl 2-(4-methyl-5-oxo-2,5-dihydrofuran-3-yl)-1,4-dioxo-2,8-diazaspiro[4.5]decane-8-carboxylate

HRID 1848483Notes

Reaction equation

HRID 1848483 reaction equation
[OH:1][CH:2]1[C:6]2([CH2:11][CH2:10][N:9]([C:12]([O:14][C:15]([CH3:18])([CH3:17])[CH3:16])=[O:13])[CH2:8][CH2:7]2)[C:5](=[O:19])[N:4]([C:20]2[CH2:21][O:22][C:23](=[O:26])[C:24]=2[CH3:25])[CH2:3]1.C(=O)(O)[O-].[Na+].CC(OI1(OC(C)=O)(OC(C)=O)OC(=O)C2C=CC=CC1=2)=O>C(Cl)Cl>[CH3:25][C:24]1[C:23](=[O:26])[O:22][CH2:21][C:20]=1[N:4]1[CH2:3][C:2](=[O:1])[C:6]2([CH2:7][CH2:8][N:9]([C:12]([O:14][C:15]([CH3:18])([CH3:17])[CH3:16])=[O:13])[CH2:10][CH2:11]2)[C:5]1=[O:19]

Participants

5

Reactant 3

HCID 159087TriacetoxyperiodinaneHCID 516892Sodium BicarbonateHCID 86709492tert-Butyl 4-hydroxy-2-(4-methyl-5-oxo-2,5-dihydrofuran-3-yl)-1-oxo-2,8-diazaspiro[4.5]decane-8-carboxylate

Product 1

HCID 86709494tert-Butyl 2-(4-methyl-5-oxo-2,5-dihydrofuran-3-yl)-1,4-dioxo-2,8-diazaspiro[4.5]decane-8-carboxylate

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent

Procedure

To tert-butyl 4-hydroxy-2-(4-methyl-5-oxo-2,5-dihydrofuran-3-yl)-1-oxo-2,8-diazaspiro[4.5]decane-8-carboxylate (I-37, Step C) (200 mg, 0.546 mmol) in DCM (2.8 mL) was added sodium bicarbonate (68.8 mg, 0.819 mmol) and Dess-Martin periodinane (347 mg, 0.819 mmol). The reaction mixture was vigorously stirred for 1.5 h, then quenched with 10% Na2S2O3, NaHCO3, and stirred for 20 min. The aqueous layer was extracted with DCM, and the organic layers were washed with brine, dried, and concentrated to give the title compound. LC/MS: [(M+1)]+=365;

Workup

  1. customquenched with 10% Na2S2O3, NaHCO3
  2. stirringstirred for 20 min
  3. extractionThe aqueous layer was extracted with DCM
  4. washthe organic layers were washed with brine
  5. customdried
  6. concentrationconcentrated

Sources & evidence

ORD record
ord-591016ed55d4417faa3b4b14d06afc0d
Source dataset
uspto-grants-2015_02
Patent number
US08952166B2

Reaction notes

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