Tetrahedron Letters p. 4669 - 4672 (1999)
Update date:2022-08-02
Topics:
Brunel, Jean-Michel
Villard, Renaud
Buono, Gerard
The synthesis of two new chiral σ2λ2-phosphenium cations 3 and 9 bearing proximal methoxy groups and their corresponding phosphine-borane adducts is reported. Phosphenium 9 has been successfully used in a chelotropic cycloaddition reaction with 2,3-dimethyl butadiene leading to the formation of a new σ4λ4-adduct.
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