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US 2003/0165421 A1Published application
Process for the preparation of hydrogen peroxide
AssigneeCouncil of Scientific and Industrial Research
InventorNaleen Borthakur
Life of this patent
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Abstract
The invention provides a process for the preparation of hydrogen peroxide by hydrogenating 3-2-(oxopropyl)-2(1H)-quinoxalinone in the presence of a palladium catalyst and contacting the 3-2-(oxopropyl)-1,2,3,4-tetrahydro-2-quinoxalinone with oxidant molecular oxygen or air in ethylacetate-water or chloroform-water biphasic system.
Claims12
A process for the preparation of hydrogen peroxide comprising (a) hydrogenating a compound of formula I
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- wherein R1 is selected from CH3, C2H5 and C6H5 and R2 is selected from the group consisting of H and CH3 provided that when R1 is C2H5 or C6H5, R2 is H, in the presence of a palladium catalyst to obtain a compound of formula II;
- and (b) contacting said compound of formula II
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- so obtained wherein R1 is selected from CH3, C2H5 and C6H5 and R2 is selected from the group consisting of H and CH3 provided that when R1 is C2H5 or C6H5, R2 is H, with an oxidant selected from the group consisting of molecular oxygen, air and a mixture thereof, in a biphasic system selected from ethylacetate-water and chloroform-water systems to obtain hydrogen peroxide.
2 more elements
Dependencies are inferred from the claim text.