Methylmalonic Acid → HCID 86758310, compound
Reaction equation
[CH3:1][C:2]1([CH3:14])[C@H:4]([CH:5]=O)[C@@H:3]1[C:7]([O:9][C:10]([CH3:13])([CH3:12])[CH3:11])=[O:8].N1CCCCC1.[CH3:21][CH:22](C(O)=O)[C:23]([OH:25])=[O:24].C(OCC)C>N1C=CC=CC=1.C(OCC)(=O)C.CCCCCC>[CH3:1][C:2]1([CH3:14])[C@@H:4](/[CH:5]=[C:22](/[C:23]([OH:25])=[O:24])\[CH3:21])[C@@H:3]1[C:7]([O:9][C:10]([CH3:13])([CH3:12])[CH3:11])=[O:8]Participants
Conditions
- Temperature
- 60 °C
Procedure
Under a nitrogen atmosphere, 0.165 g of tert-butyl (±)-cis-2,2-dimethyl-3-formylcyclopropanecarboxylate was dissolved in 5 mL of anhydrous pyridine. Seventeen-hundredths milliliters (0.17 mL) of piperidine and 0.197 g of methylmalonic acid was then added thereto, and the resulting mixture was stirred at a temperature of 60° C. for a time period of 1 hour. After the mixture was allowed to cool to room temperature, 100 mL of diethyl ether was added to said mixture and the resulting mixture was washed with 3N-hydrochloric acid and then saturated brine to obtain an organic layer therefrom. The organic layer was dried over anhydrous magnesium sulfate and thereafter the solvent was evaporated under reduced pressure in order to produce a residue. The residue was subjected to silica gel column chromatography, wherein the eluent was a mixture of n-hexane and ethyl acetate at a volume to volume ratio of 3:1 to give 0.199 g of tert-butyl (±)-trans-2,2-dimethyl-3-{2-carboxy-(E)-1-propenyl}cyclopropanecarboxylate.
Workup
- temperatureto cool to room temperature
- washthe resulting mixture was washed with 3N-hydrochloric acid
- customsaturated brine to obtain an organic layer
- dry with materialThe organic layer was dried over anhydrous magnesium sulfate
- customthe solvent was evaporated under reduced pressure in order
- customto produce a residue
Sources & evidence
- ORD record
- ord-f82f4b9c0fbc4ceb83fe1c76f48f3812
- Source dataset
- uspto-grants-2002_07
- Patent number
- US06414181B1
Reaction notes
Loading…