Vineeth Precious Catalysts Pvt. Ltd. Palghar, 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.