Synthesis of carbene complexes by reaction of platinum thiocarbamoyl and thio ester complexes with electrophiles

The Nitrogen‐Assisted Triphenylphosphine Displacement of 3‐Hydroxypyridine and 3‐Aminopyridine Ligands in Palladium(II) Complexes: Crystal Structures of [Pd(PPh3)Br]2{μ,η2‐C5H3N(OH)}2 and [Pd(PPh3)Br]2{μ,η2‐C5H3N(NH2)}2

“…Palladium complexes catalyzed forming C-C bond process are the most important reactions in organic synthesis. 1 Intramolecular reductive elimination of Pd-N binuclear complex 2 [Pd(m-C 9 H 6 N)(m-dppm)] 2 (Cl) 2 yielding organic compound 2,2¢-biquinoline and complex [Pd 2 Cl 2 -(dppm) 2 ] has been reported. A. Beeby 3 reported a pyridylbridged palladium complex as an effective precatalyst for the Suzuki cross-coupling reactions of a variety organoboronic acids and aryl bromides.…”

The Nitrogen‐Assisted Triphenylphosphine Displacement of Methylpyridine Ligand in Palladium(II) Complex: Crystal Structures of [Pd(PPh3)2{η1‐C5H3N(CH3)}(Br)] and [Pd(PPh3)Br]2{μ,η2‐C5H3N(CH3)}2

“…The preparation of palladium-carboxamido 1 or thiocarboxamido (thiocarbamoyl) complexes by oxidative addition reaction of Pd(PPh 3 ) 4 with ClC(O)N(Me) 2 or ClC(S)N(Me) 2 and synthesis of Pd-carbene complexes by reaction of Pd-thiocarbamoyl and ester complexes with electrophiles 2 have been reported. Palladium complexes catalyzed C-C and C-X bond forming processes are amongst the most important reactions in organic synthesis.…”

Syntheses, displacement behavior, hetero-atom carbene, and crystal structures of platinum complexes containing the N,N-dimethylthiocarbamoyl, Me2NCS, ligand: Structures of [Pt(PPh3)(Cl)]2(μ,η2-SCNMe2)2, [Pt(PPh3)(η2-dppa){η1-C(S)NMe2}][Cl], and [Pt(PPh3)2{η1-C(SEt)(NMe2)}(η2-S2CO)]

“…The conversion of complex 6 to carbene complex 7 is proposed to including reactions of metal carbonyl sulfide complexes with COS [16], reactions of metal carbon disulfide complexes with dioxygen [17], and dealkylation [18], iodide abstraction [19], and hydrolysis [20] of alkoxydithiocarbamate metal complexes. Syntheses of carbene complexes by the reaction of Pt thiocarbamoyl and thio ester complexes with electrophiles have been reported [21]. To our knowledge, our discussion here of the formation of dithiocarbonate carbene-complex from the alkyl-thiocarbamoyl coupling reaction is the first example in the literature.…”