Vineeth Precious Catalysts Pvt. Ltd. Mumbai, Maharashtra

A powerful hydrogenation catalyst. Useful where the reaction conditions may be highly acidic in nature Pyridine ring hydrogenations, Aromatic ring hydrogenation, Reduction of chlorinated nitro aromatic compounds without loss of chlorine atoms, Reduction of Schiff’s base.Reduction of Aliphatic and Aromatic nitro compounds.

Alumina powder, The catalytic transformations of 1, 2-dichlorobenzene, chlorobenzene, 4-chlorobiphenyl, γ-hexachlorocyclohexane (Lindane), naphthalene and phenanthrene were studied over palladium on alumina in hydrogen-saturated water (PdAl2O3H2) at room temperature and ambient pressure. The chlorinated benzenes were rapidly hydrodechlorinated and Lindane was dehydrochlorinated to benzene. Partial or complete hydrogenation was observed for biphenyl and the polycyclic aromatic hydrocarbons. The phenanthrene ring was cleaved at the 9, 10-position. In general dechlorination reactions were faster than hydrogenation reactions.

Palladium chloride, Palladium(II) oxide is the inorganic compound of formula PdO. It is the only well characterised oxide of palladium.[1] It is prepared by treating the metal with oxygen. Above about 900 °C, the oxide reverts to palladium metal and oxygen gas. It is not attacked by acids.

Nickel catalysts, Nitro to amino, oxime to amine, carbonyl to alcohol, Debenzylation ring hydrogenationAldehyde to alcohol, saturation of olefinic double bondDextrose to sorbitol, nitriles to amines with higher cycles, ammonolysis of alcohol (1, 6 Hexanediol to hexamethylele Diamine)

Palladium catalyst, Palladium on Activated Charcoal also known as Palladium on Carbon (Pd on C) is a mild hydrogenation catalyst. It is generally a catalyst of choice when the functional group to be hydrogenated is a part of a molecule which has also got some other functional group capable of getting hydrogenated. It is also a catalyst of choice for getting a specific type of isomer. It is therefore a catalyst for selective hydrogenation. Further, it can also be safely used where the reaction conditions are acidic, viz. where acetic acid is a solvent or dilute sulphuric acid is an additive.