Methanesulfonyl chloride → Tert-butyl 4-(methylsulfonyloxymethyl)piperidine-1-carboxylate
Reaction equation
[C:1]([N:8]1[CH2:13][CH2:12][CH:11]([CH2:14][OH:15])[CH2:10][CH2:9]1)([O:3][C:4]([CH3:7])([CH3:6])[CH3:5])=[O:2].[S:16](Cl)([CH3:19])(=[O:18])=[O:17]>C(Cl)Cl>[C:1]([N:8]1[CH2:13][CH2:12][CH:11]([CH2:14][O:15][S:16]([CH3:19])(=[O:18])=[O:17])[CH2:10][CH2:9]1)([O:3][C:4]([CH3:7])([CH3:6])[CH3:5])=[O:2]Participants
4
Reactant 2
Product 1
Reagents, catalysts & solvents 1
Conditions
- Temperature
- 0 °C
Procedure
Dissolved 1-Boc-4-hydroxymethyl-piperidine in anhydrous CH2Cl2 (50 ml) and TEA (4.5 ml) and cooled to 0° C. Mesyl chloride (840 μl) was added and the mixture was stirred for 15 min then at RT for 45 min. The mixture was washed with brine/1N HCl and then brine, dried over Na2SO4, concentrated in vacuo and dried under high vacuum to provide 1-Boc-4-methylsulfonyloxymethyl-piperidine as a yellow orange thick oil.
Workup
- waitat RT for 45 min
- washThe mixture was washed with brine/1N HCl
- dry with materialbrine, dried over Na2SO4
- concentrationconcentrated in vacuo
- customdried under high vacuum
Sources & evidence
- ORD record
- ord-ecd6ef1cc8ae4b099b8c64148874c7c1
- Source dataset
- uspto-grants-2014_02
- Patent number
- US08642624B2
Reaction notes
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