Application A relatively stable source of hydrogen peroxide for preparation of solutions. Other Notes An addition compound of urea and hydrogen peroxide.
Quantity One tablet will provide the equivalent of 1.75 mg of H2O2. Reconstitution When dissolved in 12.5 mL deionized water, one tablet yields a solution containing 0.014% H2O2. Specificity Urea Hydrogen Peroxide Tablets provide a safe and convenient source of H2O2 for use in enzyme immunoassay and other procedures.
Application 与 N-卤代琥珀酰亚胺配合用于羰基化合物的高效 α-卤化作用的过氧化物。1与甲基三氧化铼 (412910) 配合用于亚胺的轻度氧化,生成硝酮。2也用于将碘代芳烃氧化为高价碘化合物。3 包装 100, 250 g in poly bottle 5 g in glass bottle
A mixture obtained by combining equimolar amounts of hydrogen peroxide and urea.
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• Useful, low-hazard alternative to high-concentration H2O2 in epoxidations, Baeyer-Villiger reactions, N-oxidations, etc.: Synlett, 533 (1990). Alkenes can be epoxidized in high yield in 1,1,1,3,3,3-Hexafluoro-2-propanol, A12747 as solvent: Eur. J. Org. Chem., 3290 (2002). For use in combination with N,N'-Dicyclohexylcarbodiimide, A10973, in epoxidation of alkenes, see: J. Org. Chem., 63, 1730 (1998); in combination with Maleic anhydride, A12178, for epoxidation and Baeyer-Villiger reactions: Heterocycles, 36, 1075 (1993). For an extensive review of the Baeyer-Villiger reaction, see: Org. React., 43, 251 (1993).
• In combination with phthalic anhydride is an effective mild and safe oxidant for N-heteroaromatic compounds and tertiary amines to N-oxides: Chem. Ber., 125, 1965 (1992)
• Can be used to generate the powerful oxidant peroxytrifluoroacetic acid from TFAA, avoiding the use of hazardous 90% H2O2: Tetrahedron Lett., 33, 4835 (1992). The same system has also been reported for oxidation of electron-deficient pyridines to the N-oxides: Tetrahedron Lett., 41, 2299 (2000). Similarly, performic acid can be generated in situ, providing a mild system for oxidation of aromatic aldehydes to benzoic acids: Synth. Commun., 31, 2195 (2001). See also Sodium percarbonate, A16045.
• For use in partial oxidation of nitriles to amides, see: Synth. Commun., 23, 3149 (1993).
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