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Zeolites liquid-phase Beckmann rearrangement

Chung et al reported the liquid phase Beckmann rearrangement of 4-hydroxyacetophenone oxime using zeolite H p catalyst. The reaction was found to be an example of active solvent participation. A solvent having higher dielectric constant or more polar nature is preferred in the rearrangement step. [Pg.278]

The effect of various organic additives on the catalj ic performance of zeolites and Al-containing MCM-41 in the liquid phase Beckmann rearrangement of cyclohexanone oxime 5 was investigated at 130 °C. Over USY zeolite with a large amount of EFAL, the lactam yield was improved by adding ethanol, dimethyl sulfoxide, ammonia, diethylamine or pyridine to the... [Pg.278]

See other pages where Zeolites liquid-phase Beckmann rearrangement is mentioned: [Pg.531]    [Pg.185]    [Pg.200]    [Pg.642]    [Pg.30]    [Pg.119]    [Pg.335]    [Pg.278]    [Pg.232]   
See also in sourсe #XX -- [ Pg.278 ]



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