Silver-catalyzed carbonphosphonation of α,α-diaryl allylic alcohols is achieved. A series of γ-ketophosphonates with different substituents were readily obtained. The mechanistic study indicated that the reaction was initiated by the addition of P-radicals, which sequentially undergo 1,2-migration of an aryl group to form C(Ar)âC(sp3) bonds.
银催化的α,α-二芳基
烯丙醇的碳膦化反应得以实现。一系列含有不同取代基的γ-酮
膦酸酯被轻易地合成出来。机理研究表明,该反应始于P-自由基的加成,随后通过芳基的1,2-迁移形成C(Ar)–C(sp3)键。