Synthesis, spectroscopic and structural characterization of orthopalladated complexes with 4-phenylbenzoylmethylene triphenyl phosphorane ylide

Synthesis and application of ortho-palladated complex of (4-phenylbenzoylmethylene)triphenylphosphorane as a highly active catalyst in the Suzuki cross-coupling reaction

“…The extent of the distortion from the regular geometry may be evinced from the values of the bond angles subtended at the metal centre (84.81(10)e177.13 (8) ; Table 1). These values are in good agreement with those observed in closely related complex [PdCl(PhBPPY)(4-picoline)] (83.5(3)e 176.76(16) [22]). …”

“…The Pd1eC15 bond distance (2.008(3) Å) involving the orthometallated carbon atom is not significantly different from those found in the analogous 4-picoline complex (2.002(6) Å) and in related ortho-palladated complexes (1.990(4) Å [20]; 1.9997(4) Å [23]), while the Pd1eC1 bond distance involving the ylide carbon atom (2.180(2) Å) in complex (3a) is longer (2.101(6) Å [22]; 2.090 (3) Å [23]). The difference observed between the Pd1eC1 and Pd1eC15 bond lengths in 3a possibly reflecting the different trans effects of the phosphorus and chlorine atoms.…”

Synthesis and characterization of 2-phenylaniline cyclopalladated complexes

“…It should be noted that the main cause of chirality is the non-planar structure of the six-membered palladacycles in this kind of compounds. The Pd1-C1 bond distance (2.0014(17) Å ) is similar to those found in other orthopalladated complexes [30,31], and the Pd1-N2 distance falls also in the usual range found for this bond [32]. The Pd1-Cl1 (2.4212(5) Å ) bond distance is not significantly different from those found in related complexes [28,31].…”

Synthesis, spectral characterization, crystal structure and in vitro DNA/protein binding studies of phosphorous ylide palladacyclic complexes containing azide group

“…The appearance of single signals for the P = C(H) group in each of the 1 H and 31 P{ 1 H} NMR spectra of 1a and 1b (Fig. 2) indicates the presence of only one isomer [32,45]. The coordination of the PPh 3 in 1b was clearly evidenced by the appearance of additional 31 …”