Water → 1-Tert-butyl 4-ethyl 4-(3-((methanesulfonyl)oxy)propyl)piperidine-1,4-dicarboxylate

HRID 1510654Notes

Reaction equation

HRID 1510654 reaction equation
[OH:1][CH2:2][CH2:3][CH2:4][C:5]1([C:18]([O:20][CH2:21][CH3:22])=[O:19])[CH2:10][CH2:9][N:8]([C:11]([O:13][C:14]([CH3:17])([CH3:16])[CH3:15])=[O:12])[CH2:7][CH2:6]1.C(OCC)(=O)C.O.[CH3:30][S:31](Cl)(=[O:33])=[O:32]>O1CCCC1.C(N(CC)CC)C>[CH3:30][S:31]([O:1][CH2:2][CH2:3][CH2:4][C:5]1([C:18]([O:20][CH2:21][CH3:22])=[O:19])[CH2:10][CH2:9][N:8]([C:11]([O:13][C:14]([CH3:17])([CH3:16])[CH3:15])=[O:12])[CH2:7][CH2:6]1)(=[O:33])=[O:32]

Participants

7

Reactant 4

HCID 962WaterHCID 8857Ethyl AcetateHCID 31297Methanesulfonyl chlorideHCID 578152391-Tert-butyl 4-ethyl 4-(3-hydroxypropyl)piperidine-1,4-dicarboxylate

Product 1

HCID 578155261-Tert-butyl 4-ethyl 4-(3-((methanesulfonyl)oxy)propyl)piperidine-1,4-dicarboxylate

Reagents, catalysts & solvents 2

HCID 8028TetrahydrofuranSolventHCID 8471TriethylamineSolvent

Procedure

To a solution of 1.7 g of 1-tert-butyl 4-ethyl 4-(3-hydroxypropyl)piperidine-1,4-dicarboxylate in 20 mL of tetrahydrofuran, 0.82 mL of triethylamine and 0.58 mL of methanesulfonyl chloride were added at 5° C., and the mixture was stirred at room temperature for 1 hour. Thereto were added ethyl acetate and water. The organic layer was separated and the aqueous layer was extracted with ethyl acetate. The organic layer and the extract were combined, the resultant solution was washed with a saturated aqueous sodium chloride solution and dried over anhydrous magnesium sulfate, and the solvent was distilled off under reduced pressure to obtain 1.9 g of 1-tert-butyl 4-ethyl 4-(3-((methanesulfonyl)oxy)propyl)piperidine-1,4-dicarboxylate as a colorless oily substance.

Workup

  1. customThe organic layer was separated
  2. extractionthe aqueous layer was extracted with ethyl acetate
  3. washthe resultant solution was washed with a saturated aqueous sodium chloride solution
  4. dry with materialdried over anhydrous magnesium sulfate
  5. distillationthe solvent was distilled off under reduced pressure

Sources & evidence

ORD record
ord-db97194df776427dad5807a4fe2b48de
Source dataset
uspto-grants-2012_07
Patent number
US08211908B2

Reaction notes

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