3-Sulfolene → 3-Sulfolene
Reaction equation
[S:1]1([CH2:7][CH:6]=[CH:5][CH2:4]1)(=[O:3])=[O:2]>[Fe](Cl)Cl>[S:1]1([CH2:7][CH:6]=[CH:5][CH2:4]1)(=[O:3])=[O:2].[CH2:4]=[CH:5][CH:6]=[CH2:7]Participants
Reactant 1
Product 2
Reagents, catalysts & solvents 1
Procedure
Except that 0.13 g (1.0 mmol) of iron (II) chloride was used in manufacturing of sulfolene instead of 0.186 g (1.0 mmol) of ferrocene, a 3-sulfolene aqueous solution was prepared in the same manner as in Example 1. The amount of 3-sulfolene in the obtained aqueous solution was 103 g (0.85 mol) and the yield from 1,3-butadiene was 85%. An amount of 0.01 g of polymers was found on the filter paper after filtering the 3-sulfolene aqueous solution. Next, the obtained 3-sulfolene aqueous solution was hydrogenated in the same manner as in Example 1. The hydrogen pressure did not stop lowering in 240 minutes of the reaction time. At that time, the reaction rate was 57%. Table 1 shows the measurements of the amount of generated polymers and the reaction time of hydrogenation.
Sources & evidence
- ORD record
- ord-fe590ea75ed64a47ba56f32d59111029
- Source dataset
- uspto-grants-2013_05
- Patent number
- US08436193B2
Reaction notes
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