Alkynlphosphazenes: Synthesis, Reactions and Incorporation into Polymers

Abstract

The regio- and stereochemical pathways followed in the reactions of the lithioacetylenes, LiC=CR (R=Ph₃₁ Me, n-₁₉Bu), with N₃P₃F₆ have been examined by ³¹P and ¹⁹F NMR spectrscopy. Mixed propenylphenyl, phenylacetylene derivatives were also prepared. The products formed in these reactions demonstrate substituent control of the reaction pathway. Copolymerization of propenylphenyl alkynlphosphazenes with styrene gives polymers which add dicolbalt hexacarbonyl and undergo a one electron, chemical reversible reduction.