2-Methyl-2-butene → HCID 68625833, compound

HRID 1873531Notes

Reaction equation

HRID 1873531 reaction equation
[CH3:1][N:2]([CH3:22])[C:3]([N:5]1[CH2:9][CH:8]2[CH2:10][C:11]([CH2:15][C:16]3[CH:21]=[CH:20][CH:19]=[CH:18][CH: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>[CH2:15]([C:11]1([C:13]([OH:26])=[O:14])[CH2:12][CH:7]2[CH2:6][N:5]([C:3](=[O:4])[N:2]([CH3:1])[CH3:22])[CH2:9][CH:8]2[CH2:10]1)[C:16]1[CH:17]=[CH:18][CH:19]=[CH:20][CH:21]=1

Participants

7

Reactant 4

HCID 105532-Methyl-2-buteneHCID 23668197Sodium ChloriteHCID 23673460Sodium Phosphate, Monobasic, DihydrateHCID 72338934HCID 72338934, compound

Product 1

HCID 68625833HCID 68625833, compoundYield 98.9%

Reagents, catalysts & solvents 2

HCID 962WaterSolventHCID 8028TetrahydrofuranSolvent

Conditions

Temperature
0 °C

Procedure

5-Benzyl-5-formyl-hexahydro-cyclopenta[c]pyrrole-2-carboxylic acid dimethylamide 14b (0.729 g, 2.43 mmol) was dissolved in the solvent mixture of 28 mL of tetrahydrofuran and 14 mL of water under nitrogen atmosphere, followed by addition of sodium dihydrogenphosphate dihydrate (1.14 g, 7.29 mmol), sodium chlorite (0.66 g, 7.29 mmol) and 2-methyl-2-butene (0.513 g, 7.32 mmol) upon cooling to 0° C. The reaction mixture was stirred at 0° C. for 2 hours. The reaction was monitored by TLC until the disappearance of the starting materials. The mixture was 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-benzyl-2-dimethylcarbamoyl-octahydro-cyclopenta[c]pyrrole-5-carboxylic acid 14c (0.76 g, yield 98%) as a colorless oil.

Workup

  1. extractionThe mixture was extracted with ethyl acetate
  2. dry with materialThe combined organic extracts were dried over anhydrous magnesium sulfate
  3. filtrationfiltered
  4. concentrationconcentrated under reduced pressure
  5. customThe resulting residue was purified by silica gel column chromatography

Sources & evidence

ORD record
ord-90a7c4574b4743ab88976e71f63121ea
Source dataset
uspto-grants-2012_11
Patent number
US08304411B2

Reaction notes

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