Kalvet, Indrek; Magnin, Guillaume; Schoenebeck, Franziska published the article 《Rapid Room-Temperature, Chemoselective Csp2 -Csp2 Coupling of Poly(pseudo)halogenated Arenes Enabled by Palladium(I) Catalysis in Air》. Keywords: palladium catalyzed chemoselective coupling halogenated pseudohalogenated arene; safety organozinc Grignard reagent; chemoselectivity; density-functional calculations; heterocycles; palladium; reaction mechanisms.They researched the compound: Methanesulfonato(2-dicyclohexylphosphino-2′,6′-di-i-propoxy-1,1′-biphenyl)(2′-amino-1,1′-biphenyl-2-yl)palladium(II)( cas:1445085-77-7 ).Computed Properties of C43H56NO5PPdS. Aromatic heterocyclic compounds can be divided into two categories: single heterocyclic and fused heterocyclic. In addition, there is a lot of other information about this compound (cas:1445085-77-7) here.
While chemoselectivities in Pd0-catalyzed coupling reactions are frequently non-intuitive and a result of a complex interplay of ligand/catalyst, substrate, and reaction conditions, we herein report a general method based on PdI that allows for an a priori predictable chemoselective Csp2-Csp2 coupling at C-Br in preference to C-OTf and C-Cl bonds, regardless of the electronic or steric bias of the substrate [e.g., 4-bromo-2-chlorophenyl triflate + PhMgCl → 3-chloro-4-biphenylyl triflate (93%) in presence of Pd(I) dimer I]. The C-C bond formations are extremely rapid (<5 min at RT) and are catalyzed by an air- and moisture-stable PdI dimer under open-flask conditions. Safety: organozinc and Grignard reagents are moisture sensitives and may react violently in air. This literature about this compound(1445085-77-7)Computed Properties of C43H56NO5PPdShas given us a lot of inspiration, and I hope that the research on this compound(Methanesulfonato(2-dicyclohexylphosphino-2′,6′-di-i-propoxy-1,1′-biphenyl)(2′-amino-1,1′-biphenyl-2-yl)palladium(II)) can be further advanced. Maybe we can get more compounds in a similar way.
Reference:
Isoxazole – Wikipedia,
Isoxazole | C3H3NO – PubChem