A New Phosphorylating Agent, Di(2,2,2-Trifluoroethyl) Trimethylsilyl Phosphite. Its Application in Dna Synthesis by The Phosphotriester Approach

Abstract
A new phosphorylating agent, di(2,2,2-trifluoro-ethyl) trimethylsilyl phosphite, has been prepared and is proved to be a useful agent for the phosphorylation of the 3′-hydroxyl group of deoxyribonucleosides in the absence of coupling agents. The resulting deoxyribonucleoside 3′-(2,2,2-trifluoroethyl) phosphates are key intermediates for the synthesis of deoxyribooligonucleotides by the phospho-triester approach.