Methylsuccinic anhydride → Sulfo-methyl-succinic anhydride

HRID 66429

Reaction equation

HRID 66429 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

HCID 20051Methylsuccinic anhydrideHCID 24682Sulfur trioxide2×

Product 1

HCID 54108120Sulfo-methyl-succinic anhydride

Reagents, catalysts & solvents 1

HCID 6658Methyl MethacrylateSolvent

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

  1. customfitted with a condenser adequate
  2. temperaturethe product is cooled to 25° C.

Sources & evidence

ORD record
ord-832b12499ece4446aaeabb70e1fd5422
Source dataset
uspto-grants-1978_12
Patent number
US04131736

Linked notes

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