Concepedia

Base-Mediated Cyclization Reaction of 2-Alkynylphenylphosphine Oxides: Synthesis and Photophysical Properties of Benzo[<i>b</i>]phosphole Oxides

Takanobu Sanji, Kentaro Shiraishi, Taigo Kashiwabara, Masato Tanaka

Organic Letters · 2008 · 112 citations · 80 references

DOI

Concepts

Abstract

The base-mediated intramolecular cyclization reaction of 2-alkynylphenylphosphine oxides affords benzo[ b]phosphole oxides, which show intense blue-green fluorescence. Benzo[ b]phospholes are also prepared by the reduction of benzo[ b]phosphole oxides.

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