nitrile ylide
nitrile ylide
A 1,3-dipolar compound having the structure: RC≡N<small><sup>+</small></sup>‒C<small><sup>−</small></sup>R<small><sub>2</sub></small> ↔ RC<small><sup>−</small></sup>=N<small><sup>+</small></sup>=CR<small><sub>2</sub></small> ↔ RC<small><sup>+</small></sup>=NC<small><sup>−</small></sup>R<small><sub>2</sub></small> ↔ R<small><sup>•</small></sup>C<small><sup>•</small></sup>‒N=CR<small><sub>2</sub></small>.