Appeal No. 2000-2177 2
Application No. 08/912,229
product is distributed in the aqueous solvent. Additional limitations are disclosed in the
following illustrative claim.
THE CLAIM
Claim 1 is illustrative of appellant’s invention and is reproduced below:
1. A process for separating an oxidation reaction product and an oxidation
catalyst from a reaction mixture obtained by oxidation of a substrate selected from
the group consisting of an hydrocarbon, an alcohol, an aldehyde, a ketone, an
amine, an heterocyclic compound, a thiol and a sulfide in the presence of an imide
compound shown by the formula (1) as the oxidation catalyst, which comprises
using an aqueous solvent containing at least water and a non-water-soluble solvent
separable from said aqueous solvent, thereby distributing the oxidation reaction
product by phase separation into a layer of the aqueous solvent and the oxidation
catalyst into an immiscible layer of the non-water-soluble solvent,
wherein R1 and R2 independently represent a hydrogen atom, a halogen atom, an
alkyl group, an aryl group, a cycloalkyl group, a hydroxyl group, an alkoxy group, a
carboxyl group, an alkoxycarbonyl group, or an acyl group, or R1 and R2 may bond
together to form a double bond, or an aromatic or non-aromatic ring, and the
aromatic or non-aromatic ring formed by R1 and R2 may have 1 or 2 of an imide
unit shown by the following formula:
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