Selective hydrogenation of nitro groups on nitroaromatic...

Details Selective hydrogenation of nitro groups on nitroaromatic... Selective hydrogenation of nitro groups on nitroaromatic...

B - Operations, Transporting

01

J

260/600, 260/596

B01J 27/043 (2006.01)

Patent

CA 1137116

SELECTIVE HYDROGENATION OF NITRO GROUPS ON NITROAROMATIC ACETYLENES USING AN UNSUPPORTED COBALT POLYSULFIDE CATALYST Abstract Aromatic nitroacetylene compounds wherein both the nitro and acetylene groups are directly connected to aromatic ring carbon atoms are hydrogenated at high conversion levels to selectively reduce the nitro function using an unsupported cobalt polysulfide catalyst. Of particular interest is the preparation of aminophenylacetylenes from nitrophenylacetylene.

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