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Permanganate alumina-supported

Keywords alcohol, alumina-supported permanganate, ketone, aldehyde... [Pg.18]

KMn04, CH3CN, H2O, rt, 25-96% yield. Alumina supported permanganate and KMn04-Mn02 are similarly effective. KMn04 also cleaves semicarbazones and phenylhydrazones. [Pg.517]

The alumina supported permanganate is prepared by combining KMn04 (4 g,... [Pg.18]

Scheme 6.36 Oxidation of enamines with alumina-supported potassium permanganate. Scheme 6.36 Oxidation of enamines with alumina-supported potassium permanganate.
Trans -substituted diarylalkenes undergo oxidative cleavage upon treatment by potassium permanganate in the presence of moist alumina as a solid support (equation 32)158. Under the same conditions, cyclic alkenes, with medium-sized rings, give acyclic dialdehydes (equation 33). [Pg.716]

Potassium permanganate adsorbed on either silica or alumina can also be used to cleave double bonds under mild conditions and in good yields. In one procedure the alkene, dissolved in benzene, is passed through a column packed with KMn04 on a silica gel support.The reaction occurs rapidly at room temperature and is equally effective for the cleavage of all types of double bonds, even some that are inert to other traditionid methods. ... [Pg.586]

Potassium permanganate. 13, 258-259 14, 267 15,273-274 18,301 19,277-278 Oxidations. Well-known oxidation processes have been modified by ultrasound assistance, dispersion of KlVInO on solid supports such as alumina, " zeolite, and kieselguhr. ... [Pg.315]

Interestingly, 2,5-disubstituted 1,3,4-oxadiazoles have been synthesized by oxidation of l-aroyl-2-arylidene hydrazines with potassium permanganate on silica, alumina, or montmorillonite KIO clay surfaces under MW irradiation conditions [133], KIO clay seemed to be the most appropriate support. [Pg.387]

Permanganate oxidation in organic solvents usually necessitates the use of a crown ether to solubilize the oxidants, or a solid support such as alumina or zeolite. Ultrasound accelerates the oxidation of secondary alcohols to ketones without these additives. ... [Pg.358]

See other pages where Permanganate alumina-supported is mentioned: [Pg.18]    [Pg.15]    [Pg.18]    [Pg.18]    [Pg.15]    [Pg.18]    [Pg.573]    [Pg.298]    [Pg.664]    [Pg.151]    [Pg.298]    [Pg.617]    [Pg.522]    [Pg.483]    [Pg.207]    [Pg.110]    [Pg.1443]    [Pg.238]    [Pg.402]   
See also in sourсe #XX -- [ Pg.18 ]

See also in sourсe #XX -- [ Pg.18 ]

See also in sourсe #XX -- [ Pg.15 ]

See also in sourсe #XX -- [ Pg.18 ]



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Alumina support

Alumina supported

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