| abstract |
The reaction of allyl bromo- or chlorodifluoroacetic acid withnMonochlorosilanes in the presence of zinc with heatingnSilyl esters of α, α-difluoro-γ, δ-pentenoic acids. Obtained by hydrolysisnthe free acids, from which acid derivatives are produced by conventional methodsnvate can be produced. The pentenoic acids and pentenoic acid derivativesnare suitable for the production of polymers and copolymers from whichnorganometallic polymers and copolymers with catalytic propertiesnshafts are available. |