In heterogeneous catalysis, the catalyst is in a different phase from the reactants. COA of Formula: C51H42O3Pd2, 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
Palladium-catalyzed alkyne polyannulation of diphenols and unactivated internal diynes: A new synthetic route to functional heterocyclic polymers
A new polymerization route for the preparation of functional heterocyclic polymers was developed from diphenol derivatives and unactivated internal diynes. The alkyne polyannulations of 4,4?-sulfonyldiphenol and 4,4?-(alpha,omega-alkylenedioxy)bis(diphenylacetylene)s or 1,2-bis[4-(2-phenylethynyl)phenyl]-1,2-diphenylethene were catalyzed by Pd2(dba)3 in the presence of bathophenanthroline, silver acetate and copper(ii) acetate monohydrate in 1,4-dioxane at 130 C, affording polymers with benzofuran moieties in satisfactory yields and high molecular weights (Mw up to 34-000). All the polymers were thermally stable, losing merely 5% of their weight at high temperatures of up to 376 C. They showed a good film-forming ability and their thin solid films showed high refractive indices (RI = 1.900-1.611) in a wide wavelength region of 400-1000 nm. The polymer carrying tetraphenylethene units in the backbone was photosensitive and could be utilized to generate a fluorescent pattern by the photolithography process.
I hope this article can help some friends in scientific research. I am very proud of our efforts over the past few months and hope to 52409-22-0, help many people in the next few years.COA of Formula: C51H42O3Pd2
Reference£º
Chapter 1 An introduction to palladium catalysis,
Palladium/carbon catalyst regeneration and mechanical application method