1,3-Propanesultone synthesis
- Product Name:1,3-Propanesultone
- CAS Number:1120-71-4
- Molecular formula:C3H6O3S
- Molecular Weight:122.14
15909-83-8
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Yield:1120-71-4 99.4%
Reaction Conditions:
Stage #1: 3-hydroxypropanesulfonic acidwith pyridinium p-toluenesulfonate at 55; for 2.5 h;Large scale;
Stage #2: with calcium oxide for 2 h;Reflux;Large scale;Temperature;
Steps:
6.2 Example 6
(2) Preparation of 1,3-propanesultone
Example 6
(2) Preparation of 1,3-propanesultone
To 110kg 3-hydroxy-1-propanesulfonic acid was added 1.5kg of pyridinium p-toluenesulfonate and 3kg zeolite. Dehydration reaction was done at 55°C for 2.5 hours. The reaction was subjected to distillation and the fraction 147-149°C was taken. 1kg of calcium oxide was added and was heated at reflux for 2 hours to give 95.5kg 1,3-propanesultone with a total yield of 99.4% and a purity of 99.99% or more containing less than 0.02%.
References:
CN105348254,2016,A Location in patent:Paragraph 0039; 0040; 0042
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