Synthesis of Heterocyclic Compounds Containing Phosphorus Residues by Cycloaddition of 1,3-Dipoles to Cyclobutenylphosphorus Compounds

Article abstract of DOI:10.1021/jo00208a024

The cycloaddition reactions of 1-cyclobutenylphosphorus compounds with 1,3-dipoles such as a diazomethane, nitrile oxides, and a nitrone regiospecifically gave Δ¹-pyrazolin-3-yl-, Δ²-isoxazolin-5-yl-, and isoxazolidin-4-yl-phosphorus