17645-17-9, Name is 6-Chloro-N3-methylpyridazine-3,4-diamine, belongs to pyridazine compound, is a common compound. Formula: C5H7ClN4In an article, once mentioned the new application about 17645-17-9.
A process is described for the production of cyclohexanedimethanol by hydrogenation of a dialkyl cyclohexanedicarboxylate which comprises: (a) providing a hydrogenation zone containing a charge of a granular heterogeneous ester hydrogenation catalyst; (b) forming a vaporous feed stream of a hydrogen-containing gas,and a hydrogenatable material comprising a dialkyl cyclohexanedicarboxylate at a feed temperature which is in the range of from about 150 C. to about 350 C. and which is above the dew point of the feed stream and at a feed pressure in the range of from about 150 psia (about 10.34 bar) to about 2000 psia (about 137.90 bar), said vaporous feed stream having a known hydrogen-containing gas:dialkyl cyclohexanedicarboxylate ratio; (c) supplying the vaporous feed stream to the hydrogenation zone; (d) maintaining hydrogenation conditions in the hydrogenation zone which are effective to maintain the reaction mixture in contact with the hydrogenation catalyst above its dew point; (e) passing the vaporous feed stream through the hydrogenation zone; and (f) recovering from the hydrogenation zone a product stream containing cyclohexanedimethanol. In this process it is preferred to use dimethyl 1,4-cyclohexanedicarboxylate to produce 1,4-cyclohexanedimethanol.
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Reference：
Pyridazine – Wikipedia,
Pyridazine | C4H4N2087 – PubChem