In heterogeneous catalysis, the catalyst is in a different phase from the reactants. Recommanded Product: 1532-97-4, At least one of the reactants interacts with the solid surface in a physical process called adsorption in such a way. 1532-97-4, name is 4-Bromoisoquinoline. In an article，Which mentioned a new discovery about 1532-97-4
The palladium-tetraphosphine catalyzed arylation of an alkylidenecyclopropane gives a simple and direct access to 1-aryl-2-methyl-1-(2,2,3,3-tetramethylcyclopropylidene)propenes. This reaction tolerates several functional groups on the aryl bromides. Even heteroaryl bromides have been used successfully. This reaction probably proceeds via a classical oxidative addition of the aryl bromide to palladium, insertion of the C{double bond, long}CMe2 bond in the Ar-Pd bond followed by beta-elimination to give the dienes.
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Reference：
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem