A de novo palladium carbon-catalyzed synthesis of trisubstituted nicotinonitriles from easily synthesized homopropagylic or homoallylic aromatic alcohols in the presence of nitriles has been explored. The mechanism proceeds with an interesting generation of a Pd(II)-C palladacycle followed by an oxidative aromatization to generate the pyridine core. The pyridine core is generated with a noteworthy
甲从头从腈的存在下容易地合成homopropagylic或高烯丙基芳族醇三取代nicotinonitriles的
钯碳催化合成已探索。该机理以有趣的方式生成Pd(II)-C palladacycle,然后进行氧化芳构化以生成
吡啶核。在取代的腈的情况下,
吡啶核的生成带有值得注意的CC键断裂。产品产量适中且易于分离,对这种一锅法具有独特的重要性