In heterogeneous catalysis, the catalyst is in a different phase from the reactants. name: 1-Methyl-3,4-dihydroisoquinoline, At least one of the reactants interacts with the solid surface in a physical process called adsorption in such a way. 2412-58-0, name is 1-Methyl-3,4-dihydroisoquinoline. In an article，Which mentioned a new discovery about 2412-58-0
The reaction of 1-methyl-3,4-dihydroisoquinolinium salts with acrylamide forms 2-(2-carbamoylethyl)-1-methyl-3,4-dihydroisoquinolinium salts, which are cyclized by the action of bases to form 11b-methyl-1,2,3,6,7,11b-hexahydro-4H-pyrimido<2,1-a>isoquinolin-2-one.Treatment of this compound with iodomethane yields 5,11b-dimethyl-2-oxo-1,2,3,6,7,11b-hexahydro-4H-pyrimido<2,1-a>isoquinolinium iodide.The 11b-methylpyrimido<2,1-a>isoquinolin-2-one enters into condensation with aromatic aldehydes, forming the corresponding styryl compounds.
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Reference：
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem