Sulfuric Acid → Sulfuric Acid

HRID 1709779Notes

Reaction equation

HRID 1709779 reaction equation
[CH3:1][C:2](C)(O)[C:3]#[N:4].[S:7](=[O:11])(=[O:10])([OH:9])[OH:8]>O>[S:7]([OH:11])([OH:10])(=[O:9])=[O:8].[C:3]([NH2:4])(=[O:8])[CH:2]=[CH2:1].[S:7](=[O:9])(=[O:8])([OH:11])[OH:10]

Participants

5

Reactant 2

HCID 1118Sulfuric AcidHCID 6406Acetone Cyanohydrin

Product 2

HCID 1118Sulfuric AcidHCID 71353285Sulfuric acid--prop-2-enamide (1/1)

Reagents, catalysts & solvents 1

HCID 962WaterSolvent

Procedure

In Chemical Abstracts 91:158321U acetone cyanohydrin is reacted in aqueous solution with more than 1 mole sulphuric acid to form acrylamide sulphate in the presence of unreacted sulphuric acid, and further water is added and the mixture hydrolysed to form methacrylic acid. In Chemical Abstracts 83:44010W a similar process is described starting from methacrylonitrile, with the final product being subjected to phase separation and recycling of the small amount of distillate.

Sources & evidence

ORD record
ord-e5359aa9891d4920bf7e4d693b489849
Source dataset
uspto-grants-1990_08
Patent number
US04950788

Reaction notes

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