Sodium Hydroxide → 4-(Benzyloxycarbonylamino)bicyclo[2.2.2]octane-1-carboxylic acid

HRID 227930Notes

Reaction equation

HRID 227930 reaction equation
[CH2:1]([O:8][C:9]([NH:11][C:12]12[CH2:19][CH2:18][C:15]([C:20]([O:22]C)=[O:21])([CH2:16][CH2:17]1)[CH2:14][CH2:13]2)=[O:10])[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.[OH-].[Na+]>C(O)C>[CH2:1]([O:8][C:9]([NH:11][C:12]12[CH2:19][CH2:18][C:15]([C:20]([OH:22])=[O:21])([CH2:16][CH2:17]1)[CH2:14][CH2:13]2)=[O:10])[C:2]1[CH:3]=[CH:4][CH:5]=[CH:6][CH:7]=1

Participants

4

Reactant 2

HCID 14798Sodium HydroxideHCID 23149677Methyl 4-{[(benzyloxy)carbonyl]amino}bicyclo[2.2.2]octane-1-carboxylate

Product 1

HCID 106622014-(Benzyloxycarbonylamino)bicyclo[2.2.2]octane-1-carboxylic acidYield 91.3%

Reagents, catalysts & solvents 1

HCID 702EthanolSolvent2×

Procedure

Methyl 4-benzyloxycarbonylaminobicyclo[2.2.2]octane-1-carboxylate (64.3 g) was dissolved in ethanol (1100 mL). To this solution, a 1 mol/L aqueous solution of sodium hydroxide (1000 mL) was added and the mixture was stirred at 50° C. for 1 hour Ethanol in the mixture was evaporated under reduced pressure and the residue washed with diethylether (500 mL), followed by addition of concentrated hydrochloric acid to adjust the pH to 1. The resulting crystals were filtrated, washed with water, dried under reduced pressure to give 4-benzyloxycarbonylaminobicyclo[2.2.2]octane-1-carboxylic acid (56.1 g).

Workup

  1. customwas evaporated under reduced pressure
  2. washthe residue washed with diethylether (500 mL)
  3. additionfollowed by addition of concentrated hydrochloric acid
  4. filtrationThe resulting crystals were filtrated
  5. washwashed with water
  6. customdried under reduced pressure

Sources & evidence

ORD record
ord-b3a6c75725424e96b373d982a3f2e797
Source dataset
uspto-grants-2009_07
Patent number
US07560569B2

Reaction notes

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