78655-99-9

Basic information

• Product Name: trans-bis(tricyclohexylphosphine)palladium(II) dichloride
• CAS NO: 78655-99-9
• Molecular Weight: 738.194
• Mol File: 78655-99-9.mol
• Article Data: 7

Chemical Properties

• CAS DataBase Reference: trans-bis(tricyclohexylphosphine)palladium(II) dichloride(CAS DataBase Reference)
• NIST Chemistry Reference: trans-bis(tricyclohexylphosphine)palladium(II) dichloride(78655-99-9)
• EPA Substance Registry System: trans-bis(tricyclohexylphosphine)palladium(II) dichloride(78655-99-9)

Safety Data

• Hazardous Substances Data: 78655-99-9(Hazardous Substances Data)

Upstream product

• 78610-10-3 Pd₂Cl₄(As(C(CH₃)3)3)2 
• 2622-14-2 tricyclohexylphosphine 
• 12107-56-1 dichloro(1,5-cyclooctadiene)palladium(II) 
• 14349-67-8 tetrachloropalladium anion 
• 15617-18-2 bis(benzonitrile)palladium(II) dichloride 

Downstream Products

• 28016-71-9 trans-chlorohydridobis(tricyclohexylphosphine)palladium(II) 

Relevant articles and documents

A Polystyrene-Cross-Linking Tricyclohexylphosphine: Synthesis, Characterization and Applications to Pd-Catalyzed Cross-Coupling Reactions of Aryl Chlorides

A polystyrene-cross-linking tricyclohexylphosphine (PS-TCP) was synthesized through radical emulsion polymerization of 4-tert-butylstyrene as a monomer and tris(trans-4-styrylcyclohexyl)phosphine as a threefold cross-linker. The PS-TCP showed enhanced ligand performance compared to the corresponding polystyrene-triphenylphosphine hybrid PS-TPP and tricyclohexylphosphine in Pd-catalyzed Suzuki–Miyaura and Buchwald–Hartwig reactions of aryl chlorides.

Structural studies of PdCl2L2 complexes with fluorinated phosphines, phosphites, and phosphinites as precursors of benzyl bromide carbonylation catalysts, and and X-ray crystal structure of cis-PdCl2[PPh2 (OEt)]2

PdCl2L2-type complexes with phosphines (L = PPhx(C6F5)3-x (x = 0-3)), phosphites (L = P(OMe)3, P(OPh)3, P(OEt)3), and phosphinites (L = PPh2 (OC6F5), PPh2(O-3,5-F2 C6H3), PPh2(OEt), PPh2 (O-n-Bu), PPh2(O-t-Bu)) were synthesized and characterized by UV-vis and 31P NMR methods. PdCl2L2 complexes with less sterically demanding phosphines (Θ 2[PPh2(OEt)]2. These complexes react with CO in the presence of NEt3 forming Pd(CO)xLy (x + y = 4) type carbonyls characterized by IR spectra. All PdCl2L2 complexes studied are active as precursors of benzyl bromide carbonylation catalysts at 40°C and 1 atm CO; however, the activity of the cis isomers is higher than that of the trans isomers. The highest yields of the carbonylation product, phenylacetic acid methyl ester, were obtained using cis-PdCl2[P(OMe)3]2 (92%), cis-PdCl2[P(OPh)3]2 (89%), and cis-PdCl2[PPh2(O-n-Bu)]2 (78%) as catalyst precursors.

Aktivierung der C-Cl-Bindung: Katalytische Carbonylierung von Dichlormethan und Chlorbenzol

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