Wittig-Horner Reactions of Metallated Phosphine Oxide Anions

3 Wittig-Horner Reactions of Metallated Phosphine Oxide Anions 

A series of Af-(alk-l-enyl) nucleobase compounds has been prepared by Wittig-Horner reaction of phosphine oxides (165)-(167) or the Horner-Wadswor-th-Emmons reaction of the analogous phosphonates (168) and (169). Hor-ner-Wittig reactions have been utilised for the stereoselective synthesis of single 

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