Cyclopalladation of telluro ether ligands: synthesis, reactivity and structural characterization

2014 ◽  
Vol 43 (42) ◽  
pp. 16056-16065 ◽  
Author(s):  
Siddhartha Kolay ◽  
Mukesh Kumar ◽  
Amey Wadawale ◽  
Dasarathi Das ◽  
Vimal K. Jain
Keyword(s):  
Structural Characterization ◽  
Bond Cleavage ◽  
Palladium Complexes

Reactions of telluro ethers with common cyclopalladation precursors gave a variety of palladium complexes ranging from mononuclear,trans-[PdCl2(TeR2)2] to binuclear [Pd2(μ-Cl)2Cl2(TeRR′)2], cyclopalladated [Pd2(μ-OAc)2{RTeCH2C6H2(4,6-Me2)}2] and products formed by Te–C bond cleavage.

Transition-Metal-Catalyzed Synthesis of Organophosphorus Compounds Involving P–P Bond Cleavage

Synthesis ◽  
2020 ◽  
Vol 52 (19) ◽  
pp. 2795-2806 ◽  
Author(s):  
Mieko Arisawa
Keyword(s):  
Transition Metal ◽  
Organophosphorus Compounds ◽  
Bond Cleavage ◽  
Palladium Complexes ◽  
Addition Reactions ◽  
Phosphonium Salts ◽  
Substitution Reactions ◽  
Sulfonic Acids ◽  
Transition Metal Catalyzed ◽  
Metal Catalyzed

Organophosphorus compounds are used as drugs, pesticides, detergents, food additives, flame retardants, synthetic reagents, and catalysts, and their efficient synthesis is an important task in organic synthesis. To synthesize novel functional organophosphorus compounds, transition-metal-catalyzed methods have been developed, which were previously considered difficult because of the strong bonding that occurs between transition metals and phosphorus. Addition reactions of triphenylphosphine and sulfonic acids to unsaturated compounds in the presence of a rhodium or palladium catalyst lead to phosphonium salts, in direct contrast to the conventional synthesis involving substitution reactions of organohalogen compounds. Rhodium and palladium complexes catalyze the cleavage of P–P bonds in diphosphines and polyphosphines and can transfer organophosphorus groups to various organic compounds. Subsequent substitution and addition reactions proceed effectively, without using a base, to provide various novel organophosphorus compounds.1 Introduction2 Transition-Metal-Catalyzed Synthesis of Phosphonium Salts by Addition Reactions of Triphenylphosphine and Sulfonic Acids3 Rhodium-Catalyzed P–P Bond Cleavage and Exchange Reactions4 Transition-Metal-Catalyzed Substitution Reactions Using Diphosphines4.1 Reactions Involving Substitution of a Phosphorus Group by P–P Bond Cleavage4.2 Related Substitution Reactions of Organophosphorus Compounds4.3 Substitution Reactions of Acid Fluorides Involving P–P Bond Cleavage of Diphosphines5 Rhodium-Catalyzed P–P Bond Cleavage and Addition Reactions6 Rhodium-Catalyzed P–P Bond Cleavage and Insertion Reactions Using Polyphosphines7 Conclusions

Exploring Te-Te Bond Cleavage with Palladium(II): Synthesis, X-ray Structural Characterization, and Optical Features of Tellurolate and Telluro-Ether Complexes of Palladium(II)

2016 ◽  
Vol 642 (3) ◽  
pp. 239-245 ◽  
Author(s):  
Bárbara Tirloni ◽  
Camila Nunes Cechin ◽  
Giovanny Ferro Razera ◽  
Marcelo Barbalho Pereira ◽  
Gelson Manzoni de Oliveira ◽  
...  
Keyword(s):  
Structural Characterization ◽  
Bond Cleavage ◽  
X Ray

Synthesis and structural characterization of platinum and palladium complexes containing O-donor C6X2O42− ligands

Polyhedron ◽  
1998 ◽  
Vol 18 (3-4) ◽  
pp. 403-412 ◽  
Author(s):  
José Marı́a Casas ◽  
Larry R Falvello ◽  
Juan Forniés ◽  
Gabriel Mansilla ◽  
Antonio Martı́n
Keyword(s):  
Structural Characterization ◽  
Palladium Complexes ◽  
Platinum And Palladium Complexes

Palladium Complexes with Carbene and Phosphine Ligands: Synthesis, Structural Characterization, and Direct Arylation Reactions between Aryl Halides and Alkynes

2010 ◽  
Vol 29 (2) ◽  
pp. 463-472 ◽  
Author(s):  
Kai-Ting Chan ◽  
Yi-Hua Tsai ◽  
Wu-Shien Lin ◽  
Jia-Rong Wu ◽  
Shih-Jung Chen ◽  
...  
Keyword(s):  
Structural Characterization ◽  
Palladium Complexes ◽  
Phosphine Ligands ◽  
Aryl Halides ◽  
Direct Arylation
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