Triethylamine → 89122-07-6
Reaction equation
[CH3:1][CH:2]([OH:7])[CH2:3][CH2:4][CH:5]=[CH2:6].C(N(CC)CC)C.[CH3:15][S:16](Cl)(=[O:18])=[O:17]>ClCCl>[CH3:15][S:16]([O:7][CH:2]([CH2:3][CH2:4][CH:5]=[CH2:6])[CH3:1])(=[O:18])=[O:17]Participants
5
Reactant 3
Product 1
Reagents, catalysts & solvents 1
Conditions
- Temperature
- 0 °C
Procedure
To a solution of hex-5-en-2-ol (50 g crude, 500 mmole) in dichloromethane was added triethylamine (103 m 5 L, 750 mmol) at room temperature. The reaction mass was cooled to 0° C. and to it was added a solution of methane sulfonyl chloride (50.4 mL, 650 mmol) in DCM over a period of 30 min. The reaction mass was allowed to come to room temperature and stirred for 2 h. The solution was washed with water, dried over anhydrous sodium sulfate, filtered and concentrated under reduced pressure to get crude hex-5-en-2-yl methanesulfonate as light brown oil (73 g, 82%). 1H NMR (400 MHz, CDCl3): δ ppm 5.84-5.80 (m, 1H), 5.10-5.0 (m, 2H), 4.99-4.98 (m, 1H), 3.15 (s, 3H), 2.52-2.09 (m, 2H), 1.75-1.66 (m, 2H), 1.36-1.34 (d, J=6.4 Hz, 3H).
Workup
- customto come to room temperature
- washThe solution was washed with water
- dry with materialdried over anhydrous sodium sulfate
- filtrationfiltered
- concentrationconcentrated under reduced pressure
Sources & evidence
- ORD record
- ord-842cf74c08f34bdfabd994217e00ba56
- Source dataset
- uspto-grants-2016_08
- Patent number
- US09409943B2
Reaction notes
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