The nucleophilicity of the substituents in iodobenzene pre-catalysts have a huge impact on product selectivity in iodine(III) triggered halogenations, steering the reactivity from solely carbocyclizations towards dihalogenations. Utilizing this catalyst-dependent reactivity a diastereo- and chemoselective dihalogenation method was established allowing the conversion of structurally and electronically
碘苯预催化剂中取代基的亲核性对
碘(III)引发的卤化反应中的产物选择性产生巨大影响,使反应性从单纯的碳环化转向二卤化。利用这种依赖于催化剂的反应性,建立了非对映和
化学选择性二卤化方法,该方法可以以优异的产率转化结构上和电子上不同的不饱和化合物。