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Benzyl alcohols, oxidation Benzylamines

Kinetic studies of hexacyanoferrate(III) oxidations have included the much-studied reaction with iodide and oxidation of the TICI2 anion, of hydrazine and hydrazinium, and of phenylhydrazine and 4-bromophenylhydrazine. These last reactions proceed by outer-sphere mechanisms, and conform to Marcus s theory. Catalyzed [Fe(CN)g] oxidations have included chlororuthenium-catalyzed oxidation of cyclohexanol, ruthenium(III)-catalyzed oxidation of 2-aminoethanol and of 3-aminopropanol, ruthenium(VI)-catalyzed oxidation of lactate, tartrate, and glycolate, and osmium(VIII)-catalyzed oxidation of benzyl alcohol and benzylamine. ... [Pg.423]

Fukuzumi and co-workers described spectroscopic evidence for a ix-rf- ] -peroxo-(Cu )2 species stabilized with a fcidentate nitrogen ligand, but no (catalytic) oxidation behavior towards catechol was noted (a related trinu-clear copper species converted 2,4-di-ferf-butylphenol stoichiometrically towards the biphenol derivative) [224], Stack et al. have described a similar ] -peroxo-(Cu )2 species (28, vide supra) that could be considered a structural and functional model for tyrosinase-activity, as it efficiently reacted with catechol, benzyl alcohol and benzylamine to yield quinone (95%), benzaldehyde (80%) and benzonitrile (70%) [172,173]. This dinuclear per-0X0 species is generated by association of two monomeric copper centers, in contrast to the systems based on dinucleating Ugand scaffolds described above. [Pg.59]

Na5PV2Moio04o supported on active carbon is active for oxidative dehydrogenation of benzylic alcohols and amines without overoxidation of benzalde-hyde and benzylamine in the liquid phase (357). The suppression of the overoxidation may be due to the lower oxidizing ability of Na5PV2Moio04o relative to its acid form. [Pg.220]

Barium manganate, BaMn04, is commercially available. The dark-blue crystals are obtained from aqueous solutions of barium chloride and potassium permanganate [552, 555]. It oxidizes alcohols, especially benzylic alcohols, to carbonyl compounds [552, 555] hydroquinone to quinone [555] benzylamines to benzaldehydes [555] aromatic amines to azo compounds [555] and phosphines to phosphine oxides [555],... [Pg.33]

The same differential behavior can be observed with amine nucleophiles. For example, calcium triflate promotes the aminolysis of propene oxide 84 with benzylamine to give 1-(A -benzyl)amino-2-propanol 85, the result of attack at the less substituted site <03T2435>, and which is also seen in the solventless reaction of epoxides with heterocyclic amines under the catalysis of ytterbium(III) triflate <03SC2989>. Conversely, zinc chloride directs the attack of aniline on styrene oxide 34 at the more substituted carbon center <03TL6026>. A ruthenium catalyst in the presence of tin chloride also results in an SNl-type substitution behavior with aniline derivatives (e.g., 88), but further provides for subsequent cyclization of the intermediate amino alcohol, thus representing an interesting synthesis of 2-substituted indoles (e.g., 89) <03TL2975>. [Pg.67]


See other pages where Benzyl alcohols, oxidation Benzylamines is mentioned: [Pg.357]    [Pg.77]    [Pg.357]    [Pg.88]    [Pg.411]    [Pg.137]    [Pg.1217]    [Pg.138]    [Pg.283]    [Pg.204]    [Pg.204]    [Pg.204]    [Pg.248]    [Pg.47]    [Pg.361]    [Pg.128]    [Pg.164]    [Pg.216]    [Pg.536]    [Pg.33]    [Pg.290]    [Pg.341]    [Pg.180]    [Pg.216]    [Pg.590]    [Pg.82]    [Pg.264]    [Pg.436]    [Pg.177]    [Pg.57]   
See also in sourсe #XX -- [ Pg.314 ]




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Alcohol benzylation

Alcohols benzyl alcohol

Alcohols benzyl, oxidation

Benzyl alcohol

Benzyl oxidation

Benzyl oxide

Benzylamine

Benzylamine oxidation

Benzylamines

Benzylation benzyl alcohol

Benzylic alcohols

Benzylic alcohols oxidation

Oxidation benzylic

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