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Hydroxy group effect hydrogenations over palladium

Hydrogenation of 19-hydroxy-3a- and 3j5-substituted-A -steroids over platinum or rhodium yields increased amounts of 5j9-products as compared to the corresponding 19-desoxy series (hydroxyl group effect). In contrast, the A -19-carboxaldehyde (27) gives only the 5a-product when hydrogenated over either palladium or platinum. ... [Pg.120]

See other pages where Hydroxy group effect hydrogenations over palladium is mentioned: [Pg.75] [Pg.326] [Pg.89] [Pg.172] [Pg.333] [Pg.573] [Pg.956] [Pg.264] [Pg.239] [Pg.263] [Pg.1103]

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Hydrogen groups

Hydrogen hydroxy

Hydrogen palladium

Hydrogenation group

Hydroxy hydrogenated

Palladium groups

Palladium hydrogenation