Synthesis of Novel Exocyclic Allenes with a Norbornene Fragment
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N-Substituted amino acids with a norbornene fragment were synthesized by the direct fusion of amino acids with endic anhydride at 150°C. The synthesized compounds were used for one-pot synthesis of novel stable allenes with an exocyclic cumulene group derived from l-phenyl-3-(triphenylphosphoranylidene)-pyrrolidine-2,5-dione has been carried out.
Keywordsallenes norbornenes exocyclic allenoates Arndt-Eistert reaction phosphorus ylides amino acids endic anhydride
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The spectral part of the research was performed on the equipment of the Center for Collective Use, Ufa Institute of Chemistry, Russian Academy of Sciences (RAS).