Methylsuccinic anhydride → Sulfo-methyl-succinic anhydride
Reaction equation
[CH3:1][CH:2]1[CH2:7][C:6](=[O:8])[O:5][C:3]1=[O:4].[S:9](=[O:12])(=[O:11])=[O:10]>C(OC)(=O)C(C)=C>[S:9]([C:2]1([CH3:1])[CH2:7][C:6](=[O:8])[O:5][C:3]1=[O:4])([OH:12])(=[O:11])=[O:10]Participants
4
Reactant 2
Product 1
Reagents, catalysts & solvents 1
Conditions
- Temperature
- 110 °C
Procedure
114 g. of methyl-succinic anhydride and 80 g. of liquid sulfur trioxide are stirred and heated to 110° C. in an apparatus fitted with a condenser adequate to contain the low boiling sulfur trioxide. After 1 hour, the product is cooled to 25° C. and has an equivalent weight of about 65. It is stored as a solution in methyl methacrylate.
Workup
- customfitted with a condenser adequate
- temperaturethe product is cooled to 25° C.
Sources & evidence
- ORD record
- ord-832b12499ece4446aaeabb70e1fd5422
- Source dataset
- uspto-grants-1978_12
- Patent number
- US04131736
Reaction notes
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