In heterogeneous catalysis, the catalyst is in a different phase from the reactants. Recommanded Product: 5-Methylisoxazol-3-amine, At least one of the reactants interacts with the solid surface in a physical process called adsorption in such a way. 1072-67-9, name is 5-Methylisoxazol-3-amine. In an article，Which mentioned a new discovery about 1072-67-9
Synthesis and transformations of alkyl 1,5-bis-(dimethylamino)-3-oxopenta-1,4-diene-2,4-dicarboxylates. A simple synthesis of dialkyl 1-substituted 4-oxo-1,4-dihydropyridine-3,5-dicarboxylates
Dimethyl (2a) and diethyl 1,5-bis(dimethylamino)-3-oxo-penta-1,4-diene-2,4-dicarboxylate (2b), available in good yields from the corresponding dialkyl acetonedicarboxylates (1a, b) and N,N-dimethylformamide dimethyl acetal (DMFDMA), were used as reagents for a one-step preparation of 1-substituted 1,4-dihydropyridin-4-ones (3a-u). Thus, compounds (2) were treated with ammonia, hydrazines, and primary aliphatic, aromatic, or heterocyclic amines to form dialkyl 1-substituted 4-oxo-1,4-dihydropyridine-3,5-dicarboxylates (3a-u).
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Reference：
Isoxazole – Wikipedia,
Isoxazole | C3H3NO – PubChem