2346-26-1, A heterogeneous catalyst is a catalyst that is present in a different phase than the reactants. Such catalysts generally function by furnishing an active surface upon which a reaction can occur. 2346-26-1, name is Oxazolidine-2,4-dione, introduce a new downstream synthesis route as follows.
EXAMPLE 35 A mixture of 4-[4-[2-(1,3-dioxolan-2-yl) ethyl]phenoxyacetyl]-5-methyl-2-phenyloxazole (1.8 g), 2,4-oxazolidinedione (0.925 g), piperidine (0.12 g) and acetic acid (30 ml) was heated for 15 hours under reflux. The reaction mixture was concentrated under reduced pressure. To the concentrate was added a saturated aqueous solution of sodium hydrogencarbonate, followed by extraction with chloroform. The chloroform layer was washed with water, dried (MgSO4), followed by distilling off the solvent. The oily residue was subjected to a silica gel column chromatography. From the fractions eluted with methanol-chloroform (1:30, v/v) was obtained 5-[3-[4-[2-(5-methyl-2-phenyl-4-oxazolyl)-2-oxoethoxy]phenyl]propylidene]-2,4-oxazolidinedione. This compound was dissolved in tetrahydrofuran (THF) (30 ml), to which was added palladium-carbon (5%, 0.3 g).
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Reference£º
Patent; Takeda Chemical Industries, Ltd.; US5665748; (1997); A;,
Oxazolidine – Wikipedia
Oxazolidine | C3H7NO – PubChem