SYNTHESIS OF CARBORANE-CONTAINING PHOSPHATES BY CATALYTIC PHOSPHORYLATION

The catalytic phosphorylation of o-carboranylmethanol with different p hosphorus acid chlorides has been studied. This method makes it possib le to obtain esters of phosphorus acids and esters of the correspondin g phosphorus acid chlorides containing carboranylmethyl groups. The ca talytic phosphorylation of 1,2-bis(hydroxymethyl)-o-carborane affords both acyclic and cyclic phosphate eaters. The structure of the synthes ized o-carborano[1,2-e]-1,3,2-dioxaphosphepane was confirmed by X-ray diffraction analysis.