2-Methyl-2-butene → 5-Cyclohexylmethyl-2-dimethylcarbamoyl-octahydro-cyclopenta[c]pyrrole-5-carboxylic acid

HRID 1873538Notes

Reaction equation

HRID 1873538 reaction equation
[CH3:1][N:2]([CH3:22])[C:3]([N:5]1[CH2:9][CH:8]2[CH2:10][C:11]([CH2:15][CH:16]3[CH2:21][CH2:20][CH2:19][CH2:18][CH2:17]3)([CH:13]=[O:14])[CH2:12][CH:7]2[CH2:6]1)=[O:4].O.O.P([O-])(O)(O)=[O:26].[Na+].Cl([O-])=O.[Na+].CC(=CC)C>O1CCCC1.O>[CH:16]1([CH2:15][C:11]2([C:13]([OH:26])=[O:14])[CH2:12][CH:7]3[CH2:6][N:5]([C:3](=[O:4])[N:2]([CH3:1])[CH3:22])[CH2:9][CH:8]3[CH2:10]2)[CH2:21][CH2:20][CH2:19][CH2:18][CH2:17]1

Participants

7

Reactant 4

HCID 105532-Methyl-2-buteneHCID 23668197Sodium ChloriteHCID 23673460Sodium Phosphate, Monobasic, DihydrateHCID 72338937HCID 72338937, compound

Product 1

HCID 686269865-Cyclohexylmethyl-2-dimethylcarbamoyl-octahydro-cyclopenta[c]pyrrole-5-carboxylic acidYield 100%

Reagents, catalysts & solvents 2

HCID 962WaterSolventHCID 8028TetrahydrofuranSolvent

Conditions

Temperature
0 °C

Procedure

5-Cyclohexylmethyl-5-formyl-hexahydro-cyclopenta[c]pyrrole-2-carboxylic acid dimethylamide 15b (0.713 g, 2.33 mmol) was dissolved in the solvent mixture of 60 mL of tetrahydrofuran and 30 mL of water. Upon cooling to 0° C., sodium dihydrogenphosphate dihydrate (1.09 g, 6.99 mmol), sodium chlorite (0.79 g, 6.99 mmol) and 2-methyl-2-butene (0.62 mL, 7.0 mmol) were added. The reaction mixture was reacted at 0° C. for 2 hours. The reaction was monitored by TLC until the disappearance of the starting materials. The mixture was concentrated to remove tetrahydrofuran and extracted with ethyl acetate. The combined organic extracts were dried over anhydrous magnesium sulfate, filtered and concentrated under reduced pressure. The resulting residue was purified by silica gel column chromatography to obtain the title compound 5-cyclohexylmethyl-2-dimethylcarbamoyl-octahydro-cyclopenta[c]pyrrole-5-carboxylic acid 15c (0.75 g, yield 100%) as a yellow solid.

Workup

  1. customThe reaction mixture was reacted at 0° C. for 2 hours
  2. concentrationThe mixture was concentrated
  3. customto remove tetrahydrofuran
  4. extractionextracted with ethyl acetate
  5. dry with materialThe combined organic extracts were dried over anhydrous magnesium sulfate
  6. filtrationfiltered
  7. concentrationconcentrated under reduced pressure
  8. customThe resulting residue was purified by silica gel column chromatography

Sources & evidence

ORD record
ord-7695ca3fba854b9d8bbd30e125980765
Source dataset
uspto-grants-2012_11
Patent number
US08304411B2

Reaction notes

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