SYNTHESIS OF NEW PHOSPHONIC DERIVATIVES WITH FLUORINATED CHAINS

The synthesis of phosphonic derivatives (phosphonates and phosphonic a cids) bearing fluorinated chains is presented. Such compounds with dif ferent spacers between these groups have been produced mainly by the t elomerization of omega-unsaturated phosphonic derivatives with fluorin ated transfer agents such as mercaptans. The fluorinated phosphonates were quantitatively hydrolyzed to fluorinated phosphonic acids via two pathways: a classical one involving acids and another via silylation. Most products have been characterized by NMR and mass spectroscopy.