ChemInform Abstract: Diverse Reactivity of α-Carbanions Derived from Alkylidenephosphoranes Toward 2-(1λ5-Diazynylidene)-1H-indene-1,3-(2H)dione. General Approach to Conjugated Oxadiazines, Pyridazines and Spiro[3]pyrazoles.

Diverse reactivity of α-carbanions deriv

Diverse reactivity of α-carbanions derived from alkylidenephosphoranes toward 2-(1λ5-diazynylidene)-1H-indene-1,3-(2H)dione. General approach to conjugated oxadiazines, pyridazines and spiro[3]pyrazoles

✍ Wafaa M. Abdou; Maha D. Khidre; Rizk E. Khidre 📂 Article 📅 2008 🏛 Journal of Heterocyclic Chemistry 🌐 English ⚖ 361 KB

## Abstract magnified image Different types of phosphonium carbanions were applied to 2‐diazonio‐1,3‐dioxo‐2,3‐dihydro‐1__H__‐inden‐2‐ide (**1**) in order to synthesize a number of condensed and fused __N__‐heterocycles. When **1** was treated with cyanomethyltriphenylphosphonium chloride oxadiazi