Ethanol → HCID 59204834, compound
Reaction equation
[Cl:1][C:2]1[C:19]([Cl:20])=[CH:18][C:17]([O:21]CC2C=CC=CC=2)=[CH:16][C:3]=1[O:4][C:5]1[C:13]2[CH2:12][C:11](C)(C)[O:10][C:9]=2[CH:8]=[CH:7][CH:6]=1.[CH2:29]([OH:31])[CH3:30]>[Pd]>[CH3:9][C:13]1([CH3:5])[O:31][C:29]2[C:9]([O:10][CH2:11][CH2:12][CH2:13][CH2:5][O:4][C:3]3[CH:16]=[C:17]([OH:21])[CH:18]=[C:19]([Cl:20])[C:2]=3[Cl:1])=[CH:8][CH:7]=[CH:6][C:30]=2[CH2:12]1Participants
Reactant 2
Product 1
Reagents, catalysts & solvents 1
Procedure
A mixture of 0.5 gram (0.001 mole) of 7-{4-[2,3-dichloro-5-(phenylmethoxy)phenoxy}-2,2-dimethyl-2,3-dihydrobenzo[b]furan and 0.1 gram (catalyst) of 10% palladium on carbon in 75 mL of ethanol was placed in a Parr hydrogenation bottle and hydrogenated using a Parr hydrogenation apparatus. Upon the theoretical uptake of hydrogen gas, the reaction mixture was filtered to remove the catalyst, and the filtrate was concentrated under reduced pressure to a residue. The residue was purified with column chromatography on silica gel using 100% methylene chloride, then 5% methanol in methylene chloride as eluants. The appropriate fractions were combined and concentrated under reduced pressure, yielding 0.17 gram of the subject compound. The NMR spectrum was consistent with the proposed structure.
Workup
- filtrationUpon the theoretical uptake of hydrogen gas, the reaction mixture was filtered
- customto remove the catalyst
- concentrationthe filtrate was concentrated under reduced pressure to a residue
- customThe residue was purified with column chromatography on silica gel using 100% methylene chloride
- concentrationconcentrated under reduced pressure
Sources & evidence
- ORD record
- ord-d8ce592780c54f44a9f05e027b3e74a0
- Source dataset
- uspto-grants-2010_03
- Patent number
- US07671055B2
Reaction notes
Loading…