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Insertion of ethyl diazoacetate into the platinum–carbon bond of Pt(diphosphine)(halide)(aryl) complexes. X-ray structure of the Pt{(2S,4S)-bdpp)}I(Ph) complex

“…The resulting chair conformation (see Figure 1c) distributes the 'bulky' ligands among the axial (two phenyls and one methyl) and equatorial (two phenyls and one methyl) positions and is substantially similar to that reported in Figure 3d of Ref. [11] (to be compared with Figure 1B of the present work).…”

“…A similar iodo-chloro ligand exchange has already been observed in chloroform [11]. The activation of the carbon-chloride bond by platinum(0) complexes has been known as well [15].…”

“…However, the insertion of :CHCOOC 2 H 5 carbene fragment took place also into the Pt-halide bond of the dihalogeno complexes Pt(diphosphine)X 2 (9)(10)(11)(12). The latter complexes have been formed in situ in various amounts in all cases.…”

“…(bdpp); aryl = phenyl, 2-thiophenyl; X = Cl, I)] have been synthesized by ligand exchange reactions as described previously (Table 2) [11] and reacted with ethyl diazoacetate in chloroform. The reaction mixtures were analyzed by 31 Pand 1 H-n.m.r.…”

“…General Pt(diphosphine)X(aryl) complexes (1)(2)(3)(4)(5)(6)(7)(8) were synthesized as described before [11]. Ethyl diazoacetate was purchased from Aldrich.…”