Synthesis and structural characterisation of the oxo-rhenium(V) complexes with spirophosphorane derived bidentate ligand (P∼O−). Crystal structure of trans-ReOCl2[OCMe2CMe2OP(OCMe2CMe2O)](PPh3)

cis-Dichlorido[2,3-dimethyl-3-(4,4,5,5-tetramethyl-1,3,2λ5-dioxaphospholan-2-yloxy)butan-2-olato-κ2O,P]oxido(triphenylphosphane-κP)rhenium(V)

“…For related structures and further discussion, see: Głowiak et al (1998Głowiak et al ( , 2000; Rybak et al (2005). For typical bond lengths in coordination complexes, see: Orpen et al (1989).…”

“…The title compound, cis-[Re(C 12 H 24 O 4 P)Cl 2 O(C 18 H 15 P)], was prepared from the analogous trans isomer [Głowiak et al (2000). Polyhedron, 19, 2667-2672] by a trans-cis isomerization reaction.…”

Efficient Asymmetry Generation in the Synthesis of Oxo‐Rhenium(V) Complex cis‐[ReOCl2{OCMe2CMe2OP(OCMe2CMe2O)}py]

“…In the course of our research on the coordination capability of the spirophosphorane HP(OCMe 2 CMe 2 O) 2 , [10] we synthesized a chiral complex cis-[ReOCl 2 {OCMe 2 CMe 2 OP-(OCMe 2 CMe 2 O)}py] (cis-1, py = pyridine) as a racemate.…”

Efficient Asymmetry Generation in the Synthesis of Oxo‐Rhenium(V) Complex cis‐[ReOCl2{OCMe2CMe2OP(OCMe2CMe2O)}py]

“…Clearly, these preparations could only be successful under nonequilibrium conditions involving physical fields and/or autocatalytic chirality-amplification mechanisms. Nevertheless, in the preparation of transition-metal complexes, the generation of chiral asymmetry with substantial optical yields still remains rather rare.In the course of our research on the coordination capability of the spirophosphorane HP(OCMe 2 CMe 2 O) 2 , [10] we synthesized a chiral complex cis-[ReOCl 2 {OCMe 2 CMe 2 OP-(OCMe 2 CMe 2 O)}py] (cis-1, py = pyridine) as a racemate. [10a] In addition to monodentate ligands, the six-coordinate complex also contains a chelating phosphite diolato(1À) ligand, a deprotonated tautomeric form of the spirophosphorane (OCMe 2 CMe 2 O)POCMe 2 CMe 2 OH.…”

“…In the course of our research on the coordination capability of the spirophosphorane HP(OCMe 2 CMe 2 O) 2 , [10] we synthesized a chiral complex cis-[ReOCl 2 {OCMe 2 CMe 2 OP-(OCMe 2 CMe 2 O)}py] (cis-1, py = pyridine) as a racemate. [10a] In addition to monodentate ligands, the six-coordinate complex also contains a chelating phosphite diolato(1À) ligand, a deprotonated tautomeric form of the spirophosphorane (OCMe 2 CMe 2 O)POCMe 2 CMe 2 OH.…”