In heterogeneous catalysis, the catalyst is in a different phase from the reactants. Product Details of 64068-00-4, At least one of the reactants interacts with the solid surface in a physical process called adsorption in such a way. 64068-00-4, name is 6-Chloro-4-methylpyridazin-3-amine. In an article，Which mentioned a new discovery about 64068-00-4
Reactivity of 2-substituted imidazo[1,2-b]pyridazines: Preparation of 3-nitro, nitroso and chloro derivatives
The synthesis of 2-substitutedimidazo[1,2-b]pyridazines and their reactivity towards electrophilic substitutions are reported. The nitration was shown to be very dependent on the nature of the 2 substituent. Nitrosation using sodium nitrite in acetic acid media as a general method failed in all cases whereas chlorination was observed in warm hydrochloric acid. In order to ascertain the structure of some chloro derivatives, chlorination using N-chlorosuccinimide was also reported. Depending of the nature of the substituent, the reaction occurred at the C-3 imidazolic position and/or at the substituent on position 2. The 3-nitroso-2-phenyl derivative was finally obtained using an alternative synthetic pathway by direct condensation of 3-amino-6-chloropyridazine to omega-chloro-omega-nitrosoacetophenone. The structural determinations were ascertained using high field 1H and 13C-NMR.
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Reference：
Pyridazine – Wikipedia,
Pyridazine | C4H4N1061 – PubChem