In heterogeneous catalysis, the catalyst is in a different phase from the reactants. SDS of cas: 52409-22-0, At least one of the reactants interacts with the solid surface in a physical process called adsorption in such a way. 52409-22-0, name is Pd2(DBA)3. In an article，Which mentioned a new discovery about 52409-22-0
Auto-tandem catalysis: Synthesis of acridines by Pd-catalyzed C=C bond formation and C(sp2)-N cross-coupling
A facile palladium-catalyzed synthesis of acridines has been realized by consecutive C=C double bond formation and C-N cross-coupling. A variety of functionalized acridines can be accessed from easily available o-dihalobenzenes and N-tosylhydrazones in a single operation. This one-pot protocol has a wide scope with respect to both coupling partners, and provides an efficient route to functionalized acridine derivatives, which are generally difficult to synthesize by previously known methods.
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Reference：
Chapter 1 An introduction to palladium catalysis,
Palladium/carbon catalyst regeneration and mechanical application method