Sulfuric acid magnesium salt (1:1) → 3-(Benzyloxy)cyclobutan-1-one
Reaction equation
CS([C:4]1(SC)[CH2:7][CH:6]([O:8][CH2:9][C:10]2[CH:15]=[CH:14][CH:13]=[CH:12][CH:11]=2)[CH2:5]1)=O.Cl(O)(=O)(=O)=[O:19].C([O-])(O)=O.[Na+].[O-]S([O-])(=O)=O.[Mg+2]>CCOCC>[CH2:9]([O:8][CH:6]1[CH2:7][C:4](=[O:19])[CH2:5]1)[C:10]1[CH:15]=[CH:14][CH:13]=[CH:12][CH:11]=1Participants
6
Procedure
([3-(methylsulfinyl)-3-(methylthio)cyclobutyl]oxymethyl)benzene (2.4 g, 0.0089 mol) was dissolved in Et2O (40 mL) and 35% perchloric acid (1.8 mL) was added. The resulting mixture was stirred at rt overnight. To the reaction mixture was added solid NaHCO3 and MgSO4 and stirred for a while. The insoluble solid was filtered off. The filtrate was concentrated and purified with combiflash (silica gel, 100% dichloromethane) to give the desired product (0.7 g) as light yellow oil. LCMS calculated for C11H13O2(M+H)+: 177.1. Found: 177.3.
Workup
- stirringstirred for a while
- filtrationThe insoluble solid was filtered off
- concentrationThe filtrate was concentrated
- custompurified with combiflash (silica gel, 100% dichloromethane)
Sources & evidence
- ORD record
- ord-a342256d90fa4778916b8086cff1cc36
- Source dataset
- uspto-grants-2012_04
- Patent number
- US08158616B2
Reaction notes
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