Stereoselective cyclopalladation of [{(N-methyl-N-aryl)amino}methyl]ferrocenes: Crystal structure of σ-Pd[ClPPh3(η5-C5H5)Fe(η5-C5H3CH2N(CH3)C6H4OCH3-4)] · H2O

Stereoselective cyclopalladation of [(N-methyl-N-aryl)amino]methylferrocenes 1a–f (aryl = 4-CH3OC6H4(a), 4-CH3C6H4(b), C6H5(c), 4-ClC6H4(d), 3-ClC6H4(e), 3-O2NC6H4(f)) with sodium palladium tetrachloride and followed by treatment with triphenylphosphine resulted in the cyclopalladated complexes 3a–f (aryl = same as before) in the form of raceme. The structure of 3a was determined by X-ray single crystal diffraction. Complex 3a crystallizes in triclinic, space group P-1 with a = 10.6685(14), b = 10.7412(14), c = 16.795(2) Å, α = 71.879(2), β = 85.798(2), γ = 64.523(2)°. The possible mechanism for the formation of 3 was discussed.

Stereoselective cyclopalladation of [(N-methyl-N-aryl)amino]methylferrocenes 1a–f (aryl = 4-CH3OC6H4(a), 4-CH3C6H4(b), C6H5(c), 4-ClC6H4(d), 3-ClC6H4(e), 3-O2NC6H4(f)) with sodium palladium tetrachloride and followed by treatment with triphenylphosphine resulted in the cyclopalladated complexes 3a–f (aryl = same as before) in the form of raceme. The structure of 3a was determined by X-ray single crystal diffraction. Complex 3a crystallizes in triclinic, space group P-1 with a = 10.6685(14), b = 10.7412(14), c = 16.795(2)Å, α = 71.879(2), β = 85.798(2), γ = 64.523(2)°. The possible mechanism for the formation of 3 was discussed.Figure optionsDownload as PowerPoint slide