Synthetic, spectroscopic, structural and physical studies on transition metal complexes of cyclic and acyclic phosphorus(III) based ligands

Several cyclic diphosphanes of the type PhN(PCl)$_rm2$(-C$_rm6$H$_rm2$(R$_rm1$R$_rm2$)) ($mu$-X) ((R$_rm1$R$_rm2$) C$_rm6$H$_rm2$O-)(X = S/CH$_rm2$, R$_rm1$, R$_rm2$ = Me or extit$^rmt$Bu) and acyclic bis(phosphinites) of the type Ph$_rm2$P(-OC$_rm6$H$_rm2$(R$_rm1$R$_rm2$)$_rm2$)($mu$-CH$_rm2$)((R$_rm1$R$_rm2$) $_rm2$C$_rm6$H$_rm2$O-)PPh$_rm2$ and Ph$_rm2$P(-OC$_rm10$H$_rm6$)($mu$-CH$_rm2$)(C$_rm10$H$_rm6$O-)PPh$_rm2$ have been synthesized and derivatized. Their reactivity towards various transition metal organometallic derivatives has been investigated. The structure of the cyclic diphosphane consists of a ten-membered ring puckered in a cup-like shape in such a way that the lone pairs on the phosphorus centers are remote from the bulky aryloxy groups; the two chlorine atoms are mutually extitcis and are located on the same side of the ring. The new phosphorochloridite reacts with SbF$_rm3$ to give the fluoro derivative in good yield. More Info

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