Triethylamine → Tert-butyl 4-(methylsulfonyl)piperidine-1-carboxylate

HRID 1365452Notes

Reaction equation

HRID 1365452 reaction equation
[C:1]([O:5][C:6]([N:8]1[CH2:13][CH2:12][CH:11](O)[CH2:10][CH2:9]1)=[O:7])([CH3:4])([CH3:3])[CH3:2].[CH3:15][S:16](Cl)(=[O:18])=[O:17].C(N(CC)CC)C>ClCCl>[C:1]([O:5][C:6]([N:8]1[CH2:13][CH2:12][CH:11]([S:16]([CH3:15])(=[O:18])=[O:17])[CH2:10][CH2:9]1)=[O:7])([CH3:4])([CH3:3])[CH3:2]

Participants

5

Reactant 3

HCID 8471TriethylamineHCID 31297Methanesulfonyl chlorideHCID 643502Tert-butyl 4-hydroxypiperidine-1-carboxylate

Product 1

HCID 22504298Tert-butyl 4-(methylsulfonyl)piperidine-1-carboxylate

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent

Procedure

To 4-hydroxy-piperidine-1-carboxylic acid tert-butyl ester (9.2 g) in dichloromethane (170 ml), stirring at 0° C. was added methane sulphonyl chloride (5.33 ml) and triethylamine (0.24 ml). The reaction mixture was slowly warmed to room temperature and stirred overnight. The reaction mixture was partitioned between chloroform and water. The combined organics were washed with brine and dried (MgSO4). The solvent was removed in vacuo to yield 14 g of 4-methanesulfonyl-piperidine-carboxylic acid tert-butyl ester.

Workup

  1. customThe reaction mixture was partitioned between chloroform and water
  2. washThe combined organics were washed with brine
  3. dry with materialdried (MgSO4)
  4. customThe solvent was removed in vacuo

Sources & evidence

ORD record
ord-0736be529f5c4e6e96f0453beaa09756
Source dataset
uspto-grants-2011_02
Patent number
US07888352B2

Reaction notes

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