Triethylamine → HCID 66617827, compound

HRID 1365277Notes

Reaction equation

HRID 1365277 reaction equation
[CH3:1][C@H:2]1[CH2:7][NH:6][CH2:5][C@@H:4]([CH3:8])[NH:3]1.C(N(CC)CC)C.[CH3:16][S:17](Cl)(=[O:19])=[O:18]>ClCCl>[CH3:16][S:17]([N:6]1[CH2:5][C@@H:4]([CH3:8])[NH:3][C@@H:2]([CH3:1])[CH2:7]1)(=[O:19])=[O:18]

Participants

5

Reactant 3

HCID 8471TriethylamineHCID 31297Methanesulfonyl chlorideHCID 6950261rel-(2R,6S)-2,6-dimethylpiperazine

Product 1

HCID 66617827HCID 66617827, compoundYield 81%

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent

Procedure

To a solution of cis-2,6-dimethyl-piperazine (600 mg) and triethylamine (0.80 mL) in dichloromethane (10 mL) at 0° C. was added dropwise methanesulfonyl chloride (0.43 mL). The reaction mixture was stirred at room temperature for 16 h and then quenched with water (10 mL) and extracted into dichloromethane (2×20 mL). The combined organic layers were washed with saturated aqueous brine solution (2×20 mL), dried (MgSO4) and concentrated to afford (3S,5R)-1-methanesulfonyl-3,5-dimethyl-piperazine as a white solid (817 mg, 81%).

Workup

  1. customquenched with water (10 mL)
  2. extractionextracted into dichloromethane (2×20 mL)
  3. washThe combined organic layers were washed with saturated aqueous brine solution (2×20 mL)
  4. dry with materialdried (MgSO4)
  5. concentrationconcentrated

Sources & evidence

ORD record
ord-0e9eace0402243b990a7e3fa50f3fef3
Source dataset
uspto-grants-2011_02
Patent number
US07888352B2

Reaction notes

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