Triethylamine → Benzyl 4-fluoro-4-{[(methylsulfonyl)oxy]methyl}piperidine-1-carboxylate

HRID 1351602Notes

Reaction equation

HRID 1351602 reaction equation
[F:1][C:2]1([CH2:18][OH:19])[CH2:7][CH2:6][N:5]([C:8]([O:10][CH2:11][C:12]2[CH:17]=[CH:16][CH:15]=[CH:14][CH:13]=2)=[O:9])[CH2:4][CH2:3]1.[CH3:20][S:21](Cl)(=[O:23])=[O:22].C(N(CC)CC)C>C(Cl)Cl>[F:1][C:2]1([CH2:18][O:19][S:21]([CH3:20])(=[O:23])=[O:22])[CH2:3][CH2:4][N:5]([C:8]([O:10][CH2:11][C:12]2[CH:17]=[CH:16][CH:15]=[CH:14][CH:13]=2)=[O:9])[CH2:6][CH2:7]1

Participants

5

Reactant 3

HCID 8471TriethylamineHCID 31297Methanesulfonyl chlorideHCID 22135584Benzyl 4-fluoro-4-(hydroxymethyl)piperidine-1-carboxylate

Product 1

HCID 22135556Benzyl 4-fluoro-4-{[(methylsulfonyl)oxy]methyl}piperidine-1-carboxylate

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent

Procedure

To a solution of benzyl 4-fluoro-4-(hydroxymethyl)-piperidine-1-carboxylate (1.0 g, 3.7 mmol) in CH2Cl2 (10 mL) at RT was added methanesulfonyl chloride (0.29 mL, 3.7 mmol) and triethylamine (1.04 mL, 7.5 mmol). The reaction mixture was stirred at rt for 5 min, and partitioned between ethyl acetate and water. The organic layer was dried over Na2SO4, filtered, concentrated and purified on silica gel (10:1 to 1:2 hexanes:EtOAc) to give benzyl 4-fluoro-4-{[(methylsulfonyl)oxy]methyl}piperidine-1-carboxylate. M.S. (M+1): 346

Workup

  1. custompartitioned between ethyl acetate and water
  2. dry with materialThe organic layer was dried over Na2SO4
  3. filtrationfiltered
  4. concentrationconcentrated
  5. custompurified on silica gel (10:1 to 1:2 hexanes:EtOAc)

Sources & evidence

ORD record
ord-c6837e293c91499fb177acf2233d2649
Source dataset
uspto-grants-2007_05
Patent number
US07217716B2

Reaction notes

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