O-Cresol → HCID 22247995, compound

HRID 914820Notes

Reaction equation

HRID 914820 reaction equation
[C:1]([O:5][C:6]([N:8]1[CH2:15][CH2:14][C:11]2([O:13][CH2:12]2)[CH2:10][CH2:9]1)=[O:7])([CH3:4])([CH3:3])[CH3:2].[CH3:16][C:17]1[CH:22]=[CH:21][CH:20]=[CH:19][C:18]=1[OH:23].C(=O)([O-])[O-].[K+].[K+].O>CN(C)C=O>[C:1]([O:5][C:6]([N:8]1[CH2:15][CH2:14][C:11]([OH:13])([CH2:12][O:23][C:18]2[CH:19]=[CH:20][CH:21]=[CH:22][C:17]=2[CH3:16])[CH2:10][CH2:9]1)=[O:7])([CH3:4])([CH3:2])[CH3:3]

Participants

6

Reactant 4

HCID 335O-CresolHCID 962WaterHCID 11430Potassium CarbonateHCID 22135564tert-Butyl 1-oxa-6-azaspiro(2.5)octane-6-carboxylate

Product 1

HCID 22247995HCID 22247995, compoundYield 86.3%

Reagents, catalysts & solvents 1

HCID 6228DimethylformamideSolvent

Conditions

Temperature
150 °C

Procedure

After dissolving 120 mg of 6-(tert-butoxycarbonyl)-1-oxa-6-azaspiro[2.5]octane in 10 ml of N,N-dimethylformamide, 67 mg of 2-methylphenol and 86 mg of potassium carbonate were added and the mixture was stirred at 150° C. for 5 hours. After cooling it to room temperature, water was added and extraction was performed with ethyl acetate. The extract was dried over magnesium sulfate, and the solvent was distilled off under reduced pressure. The residue was purified by silica gel column chromatography to obtain the title compound (156 mg, 86% yield).

Workup

  1. additionwere added
  2. temperatureAfter cooling it to room temperature
  3. extractionextraction
  4. dry with materialThe extract was dried over magnesium sulfate
  5. distillationthe solvent was distilled off under reduced pressure
  6. customThe residue was purified by silica gel column chromatography

Sources & evidence

ORD record
ord-1721736036054c57a1f336e6ac16e05f
Source dataset
uspto-grants-2007_09
Patent number
US07265108B2

Reaction notes

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