Reactivity of Carbon Anions α to Pentacoordinated Phosphorus:  Spirooxyphosphoranyl <i>C-</i>Anions as Valuable Intermediates in Olefination Chemistry

Reactivity of Carbon Anions α to Pentacoordinated Phosphorus:  Spirooxyphosphoranyl <i>C-</i>Anions as Valuable Intermediates in Olefination Chemistry