Telluration and de-telluration: New ways for the cleavage and formation of P-P bonds

Abstract
Phosphanes react with tellurium much more selectively than with oxygen, sulfur and selenium. Tertiary phosphanes give “phosphane tellurides” that can equivalently be described as coordination compounds of the phosphanes with Te(O); these are kinetically labile to (phosphane) ligand substitution reactions in the nmr time scale.1