1,4-Butane sultone → HCID 178448552, compound
Reaction equation
[Cl-:1].[CH2:2]([N+:6]1[CH:10]=[CH:9][N:8]([CH3:11])[CH:7]=1)[CH2:3][CH2:4][CH3:5].[CH2:12]1[CH2:19][O:18][S:15](=[O:17])(=[O:16])[CH2:14][CH2:13]1>>[Cl:1][CH2:19][CH2:12][CH2:13][CH2:14][S:15]([O-:18])(=[O:17])=[O:16].[CH2:2]([N+:6]1[CH:10]=[CH:9][N:8]([CH3:11])[CH:7]=1)[CH2:3][CH2:4][CH3:5]Participants
3
Conditions
- Temperature
- 40 °C
Procedure
The mixture of equivalent of 1-butyl-3-methylimidazolium chloride and 20 equivalents of 1,4-butane sultone is stirred at 40° C. (temperature in the oil-bath) for 24 hours). The excess of 1,4-butane sultone was distilled off in vacuum and the residue was dried overnight at 50° C. in high vacuum (1·10−3mbar). Liquid 1-butyl-3-methylimidazolium 4-chlorobutylsulfonate is obtained in close to quantitative yield. The material was characterized by NMR spectroscopy.
Workup
- distillationThe excess of 1,4-butane sultone was distilled off in vacuum